eLife Assessment

This work presents a brain-wide atlas of vasopressin (Avp) and vasopressin receptor 1A (Avpr1a) mRNA expression in mouse brains using high-resolution RNAscope in situ hybridization. The single-transcript approach provides precise localization and identifies additional brain regions expressing Avpr1a, creating a valuable resource for the field. The revised manuscript is clearer and more impactful, with improved figures, stronger data organization, and enhanced scholarship through added context and citations. Overall, the evidence is compelling, and the atlas should be broadly of use to researchers studying vasopressin signaling and related neural circuits.

https://doi.org/10.7554/eLife.105355.4.sa0

Abstract

Vasopressin (AVP), a nonapeptide synthesized predominantly by magnocellular hypothalamic neurons, is conveyed to the posterior pituitary via the pituitary stalk, where AVP is secreted into the circulation. Known to regulate blood pressure and water homeostasis, it also modulates diverse social behaviors, such as pair bonding, social recognition, and cognition in mammals, including humans. Importantly, AVP modulates social behaviors in a sex-specific manner, perhaps due to sex differences in the distribution in the brain of AVP and its main receptor AVPR1a. There is a corpus of integrative studies for the expression of AVP and AVPR1a in various brain regions, and their functions in modulating central and peripheral actions. In order to purposefully address sexually dimorphic and novel roles of AVP on central and peripheral functions through its AVPR1a, we utilized RNAscope to map Avp and Avpr1a single transcript expression in the mouse brain. As the most comprehensive atlas of AVP and AVPR1a in the mouse brain, this compendium highlights the importance of newly identified AVP/AVPR1a neuronal nodes that may stimulate further functional studies.

Introduction

Vasopressin (AVP), a nonapeptide synthesized primarily by magnocellular neurons of the paraventricular nucleus (PVH) and supraoptic nucleus (SO) of the hypothalamus, is conveyed along axons of magnocellular neurons via the pituitary stalk to the posterior pituitary, where AVP is released into circulation to exert hormonal functions (Brownstein et al., 1980; Young and Gainer, 2003). Involved in the regulation of blood pressure and water balance (Silva et al., 1969; Stockand et al., 2022), AVP also regulates diverse social behaviors, such as pair bonding, social recognition, and cognition in all mammals, including humans (Lukas and Neumann, 2013; Lukas et al., 2013; Veenema and Neumann, 2008; Meyer-Lindenberg et al., 2011; Albers, 2015). It should be noted that similar to OXT, AVP is evolutionarily conserved across invertebrates and vertebrate taxa, differing from OXT by just two amino acids. Importantly, AVP modulates social behaviors in a sex-specific manner, perhaps due to sex differences in AVP and its receptor expression in the brain (Winslow et al., 1993; Insel and Hulihan, 1995; Dantzer et al., 1987; Rigney et al., 2023; Landgraf et al., 2003; Veenema et al., 2012).

AVP receptors are G protein-coupled receptors consisting of two major subtypes, the V1 receptor (AVPR1) and V2 receptor (AVPR2) (Dumais and Veenema, 2016). AVPR1 has two subtypes, namely AVPR1a and AVPR1b, that mediate the effects of AVP on social behaviors. Avpr1a will be the overarching focus of this study given its abundance and ubiquity in brain regions (Albers, 2015). In fact, differences in AVPR1a genetic variability and expression patterns determine specific social phenotypes (French et al., 2016; Phelps et al., 2017; Lim et al., 2004; Fink et al., 2007; Ren et al., 2014). There is evidence that AVPR1a is involved in maternal care, pair bonding, behavioral aggression, anxiety, social recognition and social play (Lukas et al., 2013; Albers, 2015; Lim et al., 2004; Bielsky et al., 2004; Neumann and Landgraf, 2012; Lago et al., 2021; Thompson et al., 2006). The sex-dependent distribution of Avpr1a across the brain in different species provides a proxy for the distribution of AVP binding and, therefore, provides further evidence for central AVP neural nodes of physiological relevance.

Blocking AVPR1a inhibits social recognition in the rat, while AVPR1a knockout mice fail to display social recognition (Veenema et al., 2012; Bielsky et al., 2004; Bielsky et al., 2005). These effects of AVP in enhancing social recognition are mediated via AVPR1a in the lateral septum (Veenema et al., 2012; Bielsky et al., 2005). Sex differences in Avpr1a binding densities have been described in several brain sites of Wistar rats. Namely, males display higher AVPR1a binding densities in the following forebrain areas: somatosensory and piriform cortex, medial posterior bed nucleus of the stria terminalis (BNST), nucleus of the lateral olfactory tract (LOT), anteroventral thalamic nucleus (VA), tuberal lateral hypothalamus (LH), stigmoid hypothalamus (Stg), and dentate gyrus (DG) (Dumais and Veenema, 2016). In male prairie voles, central AVP infusion facilitates selective aggression associated with pair bond formation and partner preference, and the Avpr1a antagonist 1-(β-mercapto-β, β-cyclopentamethylene propionic acid) does not seem to inhibit aggression (Winslow et al., 1993). In contrast, central AVP infusion induces partner preference in female prairie voles (Insel and Hulihan, 1995). Comparative analysis of AVPR1a distribution has revealed higher densities of AVPR1a binding in the ventral pallidum, amygdala, and thalamus of prairie voles than that of meadow or montane voles (Insel et al., 1994; Wang et al., 1997). It has also been reported that AVPR1a antagonism specifically in the ventral pallidum prevents mating-induced partner preference in male prairie voles (Lim and Young, 2004).

Although osmotically stimulated AVP release with short latency and duration from hypothalamic PVH and SO magnocellular axon terminals occurs in the pituitary (Summy‐Long and Kadekaro, 2001; Stricker et al., 2002), it is also released locally from somata and dendrites in the SO with a longer delay responding to osmotic challenge (Ludwig et al., 1994; Ludwig and Leng, 1997). Such local release is likely to facilitate autocrine and/or paracrine regulation of SO magnocellular neuronal activity and inhibit further systemic AVP output (Ludwig and Leng, 1997; Wang et al., 1982). Of note, somatodendritic AVP release in response to direct hypertonic stimulation is attenuated by V1/V2 receptor antagonism, implying that AVP may facilitate its own release by acting on autoreceptors within magnocellular neurons of the SO (Wotjak et al., 1994). The importance of autofacilitation to local AVP release may lie in fine-tuned regulation of AVP actions toward physiological demands. Alternatively, AVP could putatively diffuse over longer distances to bind to adjacent receptors. The relative contribution of AVP autoreceptor subtypes, including AVPR1a, to this phenomenon awaits further clarification.

Current studies implicate posterior pituitary hormones, traditionally thought of as master regulators of a single physiological target, in the control of multiple bodily systems, either directly or via their receptors in the brain (Neumann and Landgraf, 2012; Zaidi et al., 2018; Carter, 2014; Koshimizu et al., 2012; Jurek and Neumann, 2018). Non-traditional actions of AVP include its ability to affect skeletal homeostasis, wherein it negatively regulates osteoblasts and stimulates osteoclasts. This explains the bone loss that accompanies hyponatremia in patients with elevated AVP levels (Tamma et al., 2013). Furthermore, we have shown that AVP (via AVPR1a) and oxytocin (via OXTR) have opposing skeletal actions—effects that may relate to the pathogenesis of bone loss in chronic hyponatremia, and pregnancy and lactation, respectively (Tamma et al., 2013; Sun et al., 2019; Sun et al., 2016; Tamma et al., 2009).

Detecting specific AVPR1a and AVPR1b in the brain has had limitations for a long time due to the availability of only nonselective radioligands, such as tritium labeled (3H) AVP ligands, which bind to both receptors (Phillips et al., 1990). Although there is a large body of integrative studies for the expression of AVP and AVPR1a in various brain regions, and their functions in regulating central and peripheral actions, there remains the need for detailed, sex-specific mapping of the AVP/AVPR1a neuronal nodes in the brain. We utilized RNAscope—a technology that detects single RNA transcripts—to create a comprehensive atlas of AVP and AVPR1a in the mouse brain. It may seem somewhat remarkable that newly discovered brain areas for receptors of such evolutionarily conserved and well-studied hormones AVP and OXT are currently emerging, with inferences to novel functions. We believe that this atlas of AVP and its AVPR1a in concrete brain sites at a single transcript level should provide a resource to neuroscientists to deepen our understanding of classical and novel central and peripheral functions of AVP by interrogating AVPR1a site-specifically.

Results

AVP receptors are G protein-coupled receptors consisting of two major subtypes, AVPR1 and AVPR2 (Dumais and Veenema, 2016). AVPR1 is further divided into AVPR1a and AVPR1b receptor subtypes that mediate the effects of AVP in the brain on social behaviors. In this study, we have provided not only a distribution mapping of AVP and AVPR1a in the brain, but also assessed sex differences in their expression by RNAscope. Allowing the detection of single transcripts, RNAscope uses ~20 pairs of transcript-specific double Z-probes to hybridize 10-µm-thick whole brain sections. Preamplifiers first hybridize to the ~28 bp binding site formed by each double Z-probe; amplifiers then bind to the multiple binding sites on each preamplifier; and finally, labeled probes containing a chromogenic enzyme bind to multiple sites of each amplifier.

RNAscope data were quantified on every tenth section of the whole brains from coded three female and three male mice. For simplicity and clarity in the graphs, a scatter plot has been shown for three nuclei, subnuclei, and regions with the highest AVP and AVPR1a transcript densities, as well as their absolute transcript counts. Each section was viewed and analyzed using CaseViewer 2.4 (3DHISTECH, Budapest, Hungary) and QuPath v.0.2.3 (University of Edinburgh, UK). The Atlas for the Mouse Brain in Stereotaxic Coordinates (Paxinos and Franklin, 2007) was used to identify every nucleus, subnucleus, or region, which was followed by manual counting of Avp and Avpr1a transcripts by two independent observers (VR and AG) in every tenth section using the tag feature. Receptor density was calculated by dividing the absolute receptor number by the total area (µm2, ImageJ) of every nucleus, subnucleus, or region. The highest Avp and Avpr1a values in the brain regions are presented as means ± SE and compared with those of the opposite sex. Photomicrographs were prepared using Photoshop CS5 (Adobe Systems) only to adjust brightness, contrast, and sharpness, to remove artifacts (i.e. obscuring bubbles) and to make composite plates.

RNAscope revealed Avp expression in the hypothalamus, forebrain, hippocampus, and cortex of both female and male mice (Figure 1A); however, Avp expression in the 3rd ventricular region and thalamus was found only in the female mouse (Figure 1B). Whereas the numbers of Avp-expressing cells were greater in females compared with males in the hypothalamus (607 vs 471), 3rd ventricular region (7 vs 0) and thalamus (2 vs 0), those numbers were lower in the hippocampus (58 vs 118), forebrain (50 vs 77) and cortex (5 vs 6) (see Appendix for Glossary and Figure 1—figure supplement 1 for raw count graphs).

Figure 1 with 1 supplement see all
Sex-specific Avp transcript density in the brain.

(A) Avp transcript density in main brain regions detected by RNAscope. Female 3V region and hypothalamus and male hypothalamus had the highest Avp transcript density. (B) Avp transcript density in nuclei, subnuclei, and regions of the hypothalamus and forebrain. (C) Representative micrographs of some of the hypothalamic and forebrain regions with highest Avp expression. Scale bar: 20 µm. (D) Novel Avp transcripts found in nuclei, subnuclei, and regions of the hippocampus, thalamus, and cerebral cortex. Scale bar: 10 µm. Note that Avp transcripts were found only in the female 3V ependymal layer and thalamus. N=3 mice per sex, values are shown as means ± SE . ***p<0.001 and **p<0.01, unpaired Student’s t test and two-way ANOVA.

The highest Avp transcript densities were detected in the following brain nuclei, subnuclei, and regions of female and male mice, respectively: ventricular region—3V only for females, hypothalamus—SChVL and PaDC, forebrain—MPOM and VLPO, hippocampus—Py and GrDG, thalamus—ic only for females, and cerebral cortex—Pir for both (Figure 1B). Representative micrographs of some of the hypothalamic and forebrain regions with highest Avp expression are shown in Figure 1C.

We found that Avpr1a transcript expression in several brain nuclei, e.g., the MS of the forebrain, medullary 12N, IRt, LRt, MdV (Figure 2—figure supplement 1B), displayed individual patterns of expression compared with more ubiquitous and even expression noted in most of the other brain areas, suggesting brain-site-specific functional diversity and context-selective regulation of Avpr1a-mediated signaling. We report the expression of the Avpr1a in 398 and 375 brain nuclei, subnuclei, and regions of the female and male mice, respectively. Avpr1a transcripts were detected bilaterally, with no apparent ipsilateral dominance. Probe specificity was established by detecting a positive signal in renal tubules (positive control) with an absent signal in the FrA of the frontal cortex (negative control) (Figure 2A). Representative micrographs of the sex-specific medullary CC and hypothalamic Arc with highest Avpr1a expression are shown in Figure 2B.

Figure 2 with 1 supplement see all
Sex-specific Avpr1a transcript density in main brain divisions.

(A) Probe specificity was established by a positive signal in renal tubules of the kidney (positive control) with an absent signal in the frontal association cortex (FrA) (negative control). Sale bar: 20 µm. (B) Representative micrographs of medullary central canal (CC) and hypothalamic arcuate nucleus (Arc). (C) Avpr1a transcript density in main brain regions detected by RNAscope. N=3 mice per sex. Scale bar: 25 µm (controls).

In the female, total Avpr1a transcript numbers were the highest in the medulla followed in descending order by the hypothalamus, cortex, midbrain and pons, forebrain, thalamus, cerebellum, hippocampus, olfactory bulb, and ventricular regions (Figure 2—figure supplement 1A). In the male, Avpr1a transcripts were the highest in the forebrain, followed by the medulla, midbrain and pons, hypothalamus, cortex, hippocampus, thalamus, olfactory bulb, cerebellum, and ventricular regions (Figure 2—figure supplement 1A). Detailed Avpr1a transcript counts are shown in Figures 3 and 4.

Figure 3 with 1 supplement see all
Sex-specific Avpr1a transcript density in the brain.

Avpr1a transcript density in nuclei, subnuclei, and regions of the ventricular regions, hypothalamus, medulla, forebrain, olfactory bulb, and hippocampus. N=3 mice per sex, values are shown as means ± SE. ***p<0.001, **p<0.01, and *p<0.05, unpaired Student’s t test and two-way ANOVA.

Figure 4 with 1 supplement see all
Sex-specific Avpr1a transcript density in the brain.

Avpr1a transcript density in nuclei, subnuclei, and regions of the midbrain and pons, thalamus, cortex, and cerebellum. N=3 mice per sex, values are shown as means ± SE. ***p<0.001, **p<0.01, and *p<0.05, unpaired Student’s t test and two-way ANOVA.

Using the RNAscope dataset, we further calculated Avpr1a density in all brain divisions (Figure 2C), nuclei, subnuclei, and regions (Figures 3 and 4). Highest Avpr1a densities in the female and male mice, respectively, were noted in nuclei, subnuclei, and regions as follows: ventricular regions—CC ependymal region for both with 2.92-fold greater in the male; hypothalamus—Arc for both; medulla—IOBe and InM; midbrain and pons—vtgx and DRI; forebrain—AC and LSI; olfactory bulb—Mi and Tu; hippocampus—TS and df; thalamus—PV and Xi; cortex—MPtA and AID; and cerebellum—1Cb for both with 2.58-fold greater in the female (Figures 3 and 4).

In addition, RNAscope analysis revealed that various brain nuclei, subnuclei, and regions in both female and male mice co-localized Avp and Avpr1a transcripts. Avpr1a to Avp ratios within the same brain nucleus, subnucleus, and region in both sexes are demonstrated in Figure 5. Finally, RNAscope showed Avp and Avpr1a expression in the posterior pituitary lobe with Avp and Avpr1a transcript densities that were higher in male compared with female mice, however, without statistical significance (Figure 6).

Avp and Avpr1a co-localization in the brain.

We found that various nuclei and subnuclei exhibited Avp and Avpr1a co-localization in the brain of both sexes. (A) Female and (B) male Avpr1a to Avp ratios in the cortex, forebrain, hippocampus, 3rd ventricular region, thalamus, and hypothalamus.

Avp and Avpr1a transcript densities in the pituitary gland.

RNAscope revealed Avp and Avpr1a expression in the posterior pituitary lobe with Avp and Avpr1a transcript densities that were higher in male compared with female mice. N=3 mice per sex, values are shown as means ± SE. Unpaired Student’s t test.

Discussion

Here, we attempted to integrate previous information on sex-specific AVP and its AVPR1a expression in the murine brain. AVPR1a is the most abundant and widespread receptor in the brain (Albers, 2015) that plays a dominant role in regulating behavior. In addition, we focused on paradigm-shifting non-traditional roles of central AVP signaling in light of newly discovered AVPR1a. We report AVP expression in 41 female and 13 male brain nuclei, subnuclei, and regions. Moreover, we identified abundant AVPR1a expression in 398 female and 375 male brain nuclei, subnuclei, and regions. Therefore, this report is the most exhaustive atlas of brain Avp and Avpr1a expression at the single transcript level.

It has been reported that AVP synthesis and AVP fiber projections are sexually dimorphic in specific brain sites (for review, see: Dumais and Veenema, 2016). To our knowledge, the first discovery of the sexually dimorphic nature of AVP in the rat brain was made by de Vries et al., 1981. That is, males displayed more AVP-immunoreactive fibers in the lateral septum and lateral habenular nucleus over females (de Vries et al., 1981). Surprisingly, sex differences in AVP fiber density in the LS and medial amygdala (MeA) originate from the BNST, given only lesions to the BNST, but not the PVH, result in decreased AVP fiber density in the LS (de Vries and Buijs, 1983; Caffé et al., 1989). In adult rats, AVP fiber density from the BNST and MeA is dependent on circulating gonadal hormones, as gonadectomy eliminates AVP expression and hormone replacement restores AVP fiber network (de Vries et al., 1984; Miller et al., 1992). Nonetheless, gonadal hormones appear to only partially explain sex differences in AVP expression because both females and males, exposed to a similar gonadal steroid hormone regime, still differ sexually (de Vries and al-Shamma, 1990; de Vries et al., 1994).

Magnocellular neurons of the PVN, SO, and SCh of the hypothalamus are the predominant source of AVP synthesis. Hypothalamic AVP synthesis in most rodent species is similar between males and females in the PVH and SO of mice (Joca et al., 2014; Steinman et al., 2015); PVH, SO, and SCh of voles (Wang, 1995; Wang et al., 1996); PVH, MPOA, LH, and AHA of Mongolian gerbils and Chinese striped hamsters (Wang et al., 2013) (for review, see Dumais and Veenema, 2016). In concordance with these reports, we also found no sex differences in Avp synthesis, as evidenced by similar numbers of Avp-expressing neurons in the PVH and SO of mice; however, we did note sex differences in Avp expression density in specific hypothalamic nuclei. Notably, Avp expression density was higher in several PVH (PaLM and PaMM) and suprachiasmatic (SChVL and RCh) subnuclei of female compared to male mice. No sex differences in SO-Avp expression density were found.

Furthermore, Avpr1a transcript density was highest in the arcuate nucleus (Arc) and retrochiasmatic subnucleus (RCh) in female compared with Arc and suprachiasmatic nucleus (SCh) of male mice. Avpr1a expression in the Arc has previously been reported (Ostrowski et al., 1992); however, its role was unclear until a recent report demonstrating a critical involvement of Arc-NPY in the regulation of fluid homeostasis and the induction of salt water-induced hypertension through AVP modulation in the SO (Zhang et al., 2022); the latter receives direct projections from the Arc (Pineda et al., 2016). In contrast, it is plausible, but by no means proven, that PVH- and/or SO-AVP may modulate Arc anorexigenic neurons to inhibit ingestive behavior, which has previously been shown with PVH oxytocinergic neurons (Maejima et al., 2014). Indeed, increasing evidence suggests that AVP reduces feeding in mammals (Meyer et al., 1989; Langhans et al., 1991).

It has been reported that in the rat, AVP is an important output of the SCh targeting AVP cells in other hypothalamic areas—its release into the CSF peaks in the early morning and declines later in a day (Kalsbeek et al., 2010). Specifically, SCh-AVP secreted during late sleep activates osmosensory afferents to AVP neurons in the SO and organum vasculosum of the lamina terminalis (Trudel and Bourque, 2010; Gizowski et al., 2016). Similar to rodents, studies in humans also determined that the main AVP projections from the SCh target the anteroventral hypothalamic area, sub-PVH, as well as ventral parts of the PVH and DMH—a remarkable evolutionary conservation of SCh innervation from rodent to human (Dai et al., 1998a; Dai et al., 1998b). The fact that the SCh is another brain nucleus with high AVP and AVPR1a expression density (greater in males vs females) accentuates an important role of SCh-AVP in circadian rhythmicity, notably impacting neuroendocrine day/night rhythms, feeding timing, period, precision, and synchronization of SCh neurons (Kalsbeek et al., 2010; Rohr et al., 2021; Yoshimura et al., 2021).

In the hindbrain, the highest Avpr1a transcript density was noted in the inferior olive, beta subnucleus (IOBe) of female mice, and intermedius nucleus (InM) of male mice. It has been reported that AVP fibers are apparent in the hindbrain, such as the parabrachial nucleus, locus coeruleus, and near inferior olive nuclei (Young et al., 1999). In this regard, Avpr1a mRNA expression has been noted in the inferior olive (Ostrowski et al., 1992). Given this nucleus has been implicated in various functions, including learning and timing of movements, it is possible that AVPR1a in the inferior olive may be activated by the paracrine release of AVP from distant nuclei, such as the SCh, to control motor learning and timing. Alternatively, AVPR1a in the inferior olive may respond to other ligands (e.g., OXT) found in nearby regions (Szczepanska-Sadowska et al., 2021). The role of AVPR1 in the InM of male mice is less clear, but because the InM sends monosynaptic projections to the NTS (Edwards et al., 2009) that is essential for blood pressure control by AVP and receiving information from the cardiovascular receptors (Zanutto et al., 2010), a possible coordinated control by hindbrain AVP of blood pressure and cardiovascular function.

Although the midbrain, pons, and forebrain displayed less abundant Avpr1a transcript density, they revealed further sex differences. In the midbrain and pons, the highest Avpr1a density was observed in the ventral tegmental decussation (vtgx) in females and dorsal raphe nucleus, interfascicular part (DRI), in males. AVP and OXT in the ventral tegmental area are known to regulate social interactions with rewarding properties. Indeed, humans, as inherently social beings, show a strong inclination to affiliate and share their emotions with each other (Baumeister and Leary, 1995; Wagner et al., 2015). Sex differences in ventral tegmental AVPR1a make biological sense, as social interaction of females, specifically, with pups and, generally, with counterparts throughout their lives, has rewarding properties fundamental to maternal behavior and survival. Modulation of AVPR1a in the dorsal raphe nucleus has also been linked to social and emotional behaviors (Dumais and Veenema, 2016; Rigney et al., 2020; Rood et al., 2013). Sexual dimorphism in AVP innervation of and AVPR1a expression in the DRI appears to imprint dimorphic social behaviors. That is, AVPR1a blockade in the lateral habenular nucleus (LHb) of males, but not females who have lesser AVP innervation of the LHb and dorsal raphe nucleus, results in reduced urine marking to unfamiliar males and ultrasonic vocalizations to unfamiliar, sexually receptive females, whereas AVPR1a blockade in the dorsal raphe nucleus of only males reduces urine marking to unfamiliar males (Rigney et al., 2020).

In the forebrain, both sexes displayed high Avpr1a transcript density in septal nuclei. The highest Avpr1a density was in the anterior commissural nucleus (AC) within the septal nuclei of females, and lateral (LSI) and medial (MS) septal nuclei of males. It is not surprising that Avpr1a transcript density was significantly greater in septal nuclei of males than females, given that in many rodent species males have more AVP-immunoreactive fibers in the lateral septum (de Vries et al., 1981). Notably, the effects of AVP on social recognition is mediated via AVPR1a in the lateral septum (Veenema et al., 2012; Bielsky et al., 2005). For example, AVPR1a blockade inhibits social recognition in the rat, while AVPR1a knockout mice fail to display social recognition (Veenema et al., 2012; Bielsky et al., 2004; Bielsky et al., 2005).

Despite Avpr1a transcript densities in other brain divisions being significantly lower, sexually dimorphic differences are worth mentioning here. In the olfactory bulb, females had the high Avpr1a density in the mitral cell layer (Mi), whereas males had high receptor expression in the olfactory tubercle (Tu). A population of AVP neurons in the olfactory bulb of the rat that plays a role in social recognition via AVPR1a has been reported (Tobin et al., 2010). Silencing the AVPR1a by siRNA impairs habituation/dishabituation to juvenile cues, but not to volatile odors (Tobin et al., 2010). Of note, AVP is a retrograde signal that filters activation of the Mi cells in the ewe, likely through presynaptic modulation of norepinephrine or acetylcholine. The secretion of both transmitters is stimulated by AVP in the olfactory bulb (Tobin et al., 2010; Lévy et al., 1995). The functional relevance of AVP signaling via AVPR1a activation in the Tu requires additional studies. There is, however, evidence in the rat that AVP via AVPR1a has, at least, an indirect impact on Tu function, as seen by a reduction in activation responding to a noxious odor of butyric acid, when the AVPR1a is blocked (Reed et al., 2013). The presence of AVPR1a in the hippocampus, thalamus, cortex, and ventricular regions is consistent with the reported effects of AVP on memory (de Wied, 1971), emotional and reward-motivated behavior (Zhang et al., 2006), blood pressure (Matsuguchi et al., 1982), blood flow, and CSF production (Faraci et al., 1988). Functional roles of many other nuclei shown here to express AVPR1a and not mentioned in this report are much less clear. The importance of revealing novel AVP-triggered functions by interrogating AVPR1a site-specifically will require further investigations.

Collectively, our results provide compelling evidence of distinct and novel AVP/AVPR1a neuronal nodes in the brain. While studies on central AVP signaling and its control of blood pressure, water balance, and diverse social behaviors in mammals occupy the vast majority of the literature (Silva et al., 1969; Stockand et al., 2022; Lukas and Neumann, 2013; Lukas et al., 2013; Veenema and Neumann, 2008; Meyer-Lindenberg et al., 2011; Albers, 2015), we expect that this comprehensive compendium of sex-specific AVP/AVPR1a expression in the brain will deepen our understanding of the functional and neuroanatomical basis underlying old and new paradigm-shifting functions of central AVP signaling. As appears to be the case for most brain areas, the original discovery of function tends to become dogma, thereby leading to an oversimplification of multiple functions of those brain areas as they interact in circuits. Finally, the approach of direct mapping of receptor expression in the brain and periphery provides the groundwork for greater discernment of new functional arrangements of ancient pituitary glycoprotein hormones and nonapeptides, such as AVP and OXT, and provides helpful pointers toward improving pharmacological interventions in disease.

Methods

Mice

Adult C57BL/6J mice (~3- to 4-month-old) were housed in a 12 hr:12 hr light:dark cycle at 22 ± 2°C with ad libitum access to water and regular chow. All procedures were approved by the Mount Sinai Institutional Animal Care and Use Committee and are in accordance with Public Health Service and United States Department of Agriculture guidelines. Ethical approval for all experimental procedures was obtained from the appropriate Institutional Review Board under protocol number PROTO202100038.

RNAscope

For RNAscope, mice were anesthetized with isoflurane (2–3% in oxygen; Baxter Healthcare, Deerfield, IL, USA) and transcardially perfused with 0.9% heparinized saline followed by 10% Neutral Buffered Formalin (NBF). Brains were promptly extracted, post-fixed in 10% NBF for 24 hr, dehydrated, and paraffin-embedded. Coronal sections were cut at 5 μm, with every tenth section mounted onto ~60 slides with 3 sections on each slide. This method allows covering the entire brain and eliminates the likelihood of counting the same transcript twice. Sections were air-dried overnight at room temperature and stored at 4°C until required.

Detection of mouse Avp and Avpr (Avpr1a) was performed separately on paraffin sections using Advanced Cell Diagnostics (ACD) RNAscope 2.5 LS Reagent Kit (#322100) and two RNAscope 2.5 LS probes, namely Mm-AVP-O1 (#472268) and Mm-AVPR1a (#418068). The kidney and prefrontal cortex served as positive and negative controls for AVPR1a, respectively. As with AVP, magnocellular cells of the PVH and SON served as positive controls, while the brain from the AVP knockout mouse served as a negative control.

Slides were baked at 60°C for 1 hr, deparaffinized, incubated with hydrogen peroxide for 10 min at room temperature, pretreated with Target Retrieval Reagent (#322001) for 20 min at 100°C and then with Protease III for 30 min at 40°C. Probe hybridization and signal amplification were performed as per the manufacturer’s instructions for chromogenic assays.

Following the RNAscope assay, the slides were scanned at ×20 magnification, and the digital image analysis was successfully validated using the CaseViewer 2.4 software (3DHISTECH). The same software was employed to capture and prepare images for the figures in the article. Images of control tissues were taken using the microscope Leica DM 1000 LED. Detection of Avp- and Avpr1a-positive cells was also performed using the QuPath-0.2.3 (University of Edinburgh, UK) software. The Atlas for the Mouse Brain in Stereotaxic Coordinates (Paxinos and Franklin, 2007) was utilized to identify and manually map every nucleus, subnucleus, or region using the drawing features of the QuPath-0.2.3 software in every tenth brain section. This was followed by exhaustive counting of Avp and Avpr1a transcripts using a tag feature. Avp and Avpr1a transcript density was calculated by dividing the absolute numbers by the total area (µm2, ImageJ) of every nucleus, subnucleus, or region. Photomicrographs were prepared using Photoshop CS5 (Adobe Systems) only to adjust brightness, contrast, and sharpness, to remove artifacts (e.g., obscuring bubbles) and to make composite plates.

Quantitation, validation, and statistical analysis

Data were analyzed by Student’s t-test and two-way analysis of variance (ANOVA) followed by Tukey’s multiple comparisons tests using GraphPad Prism 10.2.2 version (La Jolla, CA, USA). Significance was set at p<0.05. p-values are shown.

Appendix 1

Appendix 1—table 1
Glossary of the brain nuclei, sub–nuclei and regions.
Olfactory bulb
acianterior commissure, intrabulbar part
AOEanterior olfactory nucleus, external part
AOLanterior olfactory nucleus, lateral part
BAOTbed nucleus of the accessory olfactory tract
EPIexternal plexiform layer of the olfactory bulb
EPIAexternal plexiform layer of the accessory olfactory bulb
G1glomerular layer of the olfactory bulb
GrAgranule cell layer of the accessory olfactory bulb
GrOgranular cell layer of the olfactory bulb
IPIinterpeduncular nucleus, intermediate subnucleus
lolateral olfactory tract
LOTnucleus of the lateral olfactory tract
Mimitral cell layer of the olfactory bulb
MiAmitral cell layer of the accessory olfactory bulb
ONolfactory nerve layer
Tuolfactory tubercle
Cerebral cortex
AIDagranular insular cortex, dorsal part
AIPagranular insular cortex, posterior part
AIVagranular insular cortex, ventral part
Au1primary auditory cortex
AuDsecondary auditory cortex, dorsal area
AuVsecondary auditory cortex, ventral area
Cg/RScingular/retrosplenial cortex
Cg1cingulate cortex, area 1
Cg2cingulate cortex, area 2
C1C1 adrenaline cells
DEndorsal endopiriform nucleus
DIdysgranular insular cortex
Ectectorhinal cortex
GIgranular insular cortex
LEntlateral entorhinal cortex
LOlateral orbital cortex
LPtAlateral parietal association cortex
M1primary motor cortex
M2secondary motor cortex
MEntmedial entorhinal cortex
MPtAmedial parietal association cortex
Pirpiriform cortex
PRhperirhinal cortex
RSAretrosplenial agranular cortex
RSGretrosplenial granular cortex
S1primary somatosensory cortex
S1BFprimary somatosensory cortex, barrel field
S1DZprimary somatosensory cortex, dysgranular region
S1FLprimary somatosensory cortex, forelimb region
S1HLprimary somatosensory cortex, hindlimb region
S1Shprimary somatosensory cortex, shoulder region
S1ShNcprimary somatosensory cortex, shoulder/neck region
S1Trprimary somatosensory cortex, trunk region
S2secondary somatosensory cortex
TeAtemporal association cortex
V1primary visual cortex
V2Lsecondary visual cortex, lateral area
V2MLsecondary visual cortex, mediolateral area
V2MMsecondary visual cortex, mediomedial area
VEnventral endopiriform nucleus
Forebrain
ACanterior commissural nucleus
acaanterior commissure, anterior part
ADPanterodorsal preoptic nucleus
AVPeanteroventral periventricular nucleus
BACbed nucleus of the anterior commissure
BSTbed nucleus of the stria terminalis
BSTIAbed nucleus of the stria terminalis, intraamygdaloid division
BSTLIbed nucleus of the stria terminalis, lateral division, intermediate part
BSTLPbed nucleus of the stria terminalis, lateral division, posterior part
BSTLVbed nucleus of the stria terminalis, lateral division, ventral part
BSTMAbed nucleus of the stria terminalis, medial division, anterior part
BSTMPIbed nucleus of the stria terminalis, medial division, posterointermediate part
BSTMPLbed nucleus of the stria terminalis, medial division, posterolateral part
BSTMPMbed nucleus of the stria terminalis, medial division, posteromedial part
BSTSbed nucleus of stria terminalis, supracapsular part
CPucaudate putamen (striatum)
HDBnucleus of the horizontal limb of the diagonal band
IPACLinterstitial nucleus of the posterior limb of the anterior commissure, lateral part
IPACMinterstitial nucleus of the posterior limb of the anterior commissure, medial part
LPOlateral preoptic area
LSDlateral septal nucleus, dorsal part
LSIlateral septal nucleus, intermediate part
LSVlateral septal nucleus, ventral part
MCPOmagnocellular preoptic nucleus
MnPOmedian preoptic nucleus
MPOCmedial preoptic nucleus, central part
MPOLmedial preoptic nucleus, lateral part
MPOMmedial preoptic nucleus, medial part
MSmedial septal nucleus
SFiseptofimbrial nucleus
SIsubstantia innominata
VLPOventrolateral preoptic nucleus
VMPOventromedial preoptic nucleus
VOLTvascular organ of the lamina terminalis
VPventral pallidum
ZLzona limitans
Hippocampus
CA1field ca1 of hippocampus
CA3field CA3 of hippocampus
dfdorsal fornix
DGdentate gyrus
dhcdorsal hippocampal commissure
ffornix
fifimbria of the hippocampus
GrDGgranular layer of the dentate gyrus
LMollacunosum moleculare layer of the hippocampus
Molmolecular layer of the dentate gyrus
Ororiens layer of the hippocampus
PoDGpolymorph layer of the dentate gyrus
PrSpresubiculum
Pypyramidal tract
Ssubiculum
TStriangular septal nucleus
Thalamus
ADanterodorsal thalamic nucleus
AManteromedial thalamic nucleus
APTanterior pretectal nucleus
APTDanterior pretectal nucleus, dorsal part
APTVanterior pretectal nucleus, ventral part
CLcentrolateral thalamic nucleus
CMcentral medial thalamic nucleus
DLGdorsal lateral geniculate nucleus
emlexternal medullary lamina
Ethethmoid thalamic nucleus
Fnucleus of the fields of Forel
FFfields of Forel
frfasciculus retroflexus
Gusgustatory thalamic nucleus
hbchabenular commissure
IADinteranterodorsal thalamic nucleus
IAMinteranteromedial thalamic nucleus
icinternal capsule
IGLintergeniculate leaf
IMDintermediodorsal thalamic nucleus
LDDMlaterodorsal thalamic nucleus, dorsomedial part
LDVLlaterodorsal thalamic nucleus, ventrolateral part
LGPlateral globus pallidus
LHblateral habenular nucleus
LHbLlateral habenular nucleus, lateral part
LHbMlateral habenular nucleus, medial part
LPLRlateral posterior thalamic nucleus, laterorostral part
LPMClateral posterior thalamic nucleus, mediocaudal part
LPMRlateral posterior thalamic nucleus, mediorostral part
MDmediodorsal thalamic nucleus
MDCmediodorsal thalamic nucleus, central part
MDLmediodorsal thalamic nucleus, lateral part
MDMmediodorsal thalamic nucleus, medial part
MGDmedial geniculate nucleus, dorsal part
MGMmedial geniculate nucleus, medial part
MGPmedial globus pallidus (entopeduncular nucleus)
MGVmedial geniculate nucleus, ventral part
MHbmedial habenular nucleus
MZMGmarginal zone of the medial geniculate
OPCoval paracentral thalamic nucleus
OPTolivary pretectal nucleus
PCparacentral thalamic nucleus
PFparafascicular thalamic nucleus
PILposterior intralaminar thalamic nucleus
Poposterior thalamic nuclear group
PoMnposteromedian thalamic nucleus
PPperipeduncular nucleus
PPTposterior pretectal nucleus
PRprerubral field
PrCprecommissural nucleus
pvperiventricular fiber system
PVparaventricular thalamic nucleus
PVAparaventricular thalamic nucleus, anterior part
PVPparaventricular thalamic nucleus, posterior part
Rereuniens thalamic nucleus
REthretroethmoid nucleus
Rhrhomboid thalamic nucleus
RIrostral interstitial nucleus of medial longitudinal fasciculus
Rtreticular thalamic nucleus
SCOsubcommissural organ
SGsuprageniculate thalamic nucleus
smstria medullaris of the thalamus
SPFsubparafascicular thalamic nucleus
SThsubthalamic nucleus
Subsubmedius thalamic nucleus
SubGsubgeniculate nucleus
VLventrolateral thalamic nucleus
VLGMCventral lateral geniculate nucleus, magnocellular part
VLGPCventral lateral geniculate nucleus, parvicellular part
VMventromedial thalamic nucleus
VPLventral posterolateral thalamic nucleus
VPMventral posteromedial thalamic nucleus
VReventral reuniens thalamic nucleus
Xixiphoid thalamic nucleus
Hypothalamus
AAVanterior amygdaloid area, ventral part
ACoanterior cortical amygdaloid nucleus
AHAanterior hypothalamic area, anterior part
AHCanterior hypothalamic area, central part
AHiALamygdalohippocampal area, anterolateral part
AHiPMamygdalohippocampal area, posteromedial part
AHPanterior hypothalamic area, posterior part
APiramygdalopiriform transition area
Arcarcuate hypothalamic nucleus
ArcLarcuate hypothalamic nucleus, lateral part
ArcLParcuate hypothalamic nucleus, lateroposterior part
ArcMParcuate hypothalamic nucleus, medial posterior part
AStramygdalostriatal transition area
BLAbasolateral amygdaloid nucleus, anterior part
BLPbasolateral amygdaloid nucleus, posterior part
BLVbasolateral amygdaloid nucleus, ventral part
BMAbasolateral amygdaloid nucleus, anterior part
BMPbasomedial amygdaloid nucleus, posterior part
CeCcentral amygdaloid nucleus, capsular part
CeLcentral amygdaloid nucleus, lateral division
CeMcentral amygdaloid nucleus, medial division
CeMADcentral amygdaloid nucleus, medial division, anterodorsal part
CeMPVcentral amygdaloid nucleus, medial posteroventral part
cpcerebral peduncle, basal part
CxAcortex-amygdala transition zone
DMdorsomedial hypothalamic nucleus
DMCdorsomedial hypothalamic nucleus, compact part
DMDdorsomedial hypothalamic nucleus, dorsal part
DMVdorsomedial hypothalamic nucleus, ventral part
DTMdorsal tuberomammillary nucleus
Iintercalated nuclei of the amygdala
IMintercalated amygdaloid nucleus, main part
IPACinterstitial nucleus of the posterior limb of the anterior commissure
LAlateroanterior hypothalamic nucleus
LaDLlateral amygdaloid nucleus, dorsolateral part
LaVLlateral amygdaloid nucleus, ventrolateral part
LaVMlateral amygdaloid nucleus, ventromedial part
LHlateral hypothalamic area
LMlateral mammillary nucleus
MCLHmagnocellular nucleus of the lateral hypothalamus
MeAmedial amygdaloid nucleus, anterior part
MeADmedial amygdaloid nucleus, anteriodorsal part
MePDmedial amygdaloid nucleus, posterodorsal part
MePVmedial amygdaloid nucleus, posteroventral part
MLmedial mammillary nucleus, lateral part
MMmedial mammillary nucleus, medial part
MMnmedial mammillary nucleus, median part
MPAmedial preoptic area
mtmammillothalamic tract
mtgmammillotegmental tract
MTumedial tuberal nucleus
nsnigrostriatal bundle
optoptic tract
PaAPparaventricular hypothalamic nucleus, anterior parvicellular part
PaDCparaventricular hypothalamic nucleus, dorsal cap
PaLMparaventricular hypothalamic nucleus, lateral magnocellular part
PaMMparaventricular hypothalamic nucleus, medial magnocellular part
PaMPparaventricular hypothalamic nucleus, medial parvicellular part
PaPoparaventricular hypothalamic nucleus, posterior part
PaVparaventricular hypothalamic nucleus, ventral part
Peperiventricular hypothalamic nucleus
PeFperifornical nucleus
PHposterior hypothalamic area
PLCoposterolateral cortical amygdaloid nucleus
PMCoposteromedial cortical amygdaloid nucleus (C3)
PMDpremammillary nucleus, dorsal part
PMVpremammillary nucleus, ventral part
PSThparasubthalamic nucleus
RChretrochiasmatic area
SChsuprachiasmatic nucleus
SChDMsuprachiasmatic nucleus, dorsomedial part
SChVLsuprachiasmatic nucleus, ventrolateral part
SHyseptohypothalamic nucleus
SMTsubmammillothalamic nucleus
SOsupraoptic nucleus
SORsupraoptic nucleus, retrochiasmatic part
soxsupraoptic decussation
SPasubparaventricular zone of the hypothalamus
Stgstigmoid hypothalamic nucleus
Sublsubincertal nucleus
SuMsupramammillary nucleus
SuMLsupramammillary nucleus, lateral part
SuMMsupramammillary nucleus, medial part
sumxsupramammillary decussation
TCtuber cinereum area
Teterete hypothalamic nucleus
VMHventromedial hypothalamic nucleus
VMHCventromedial hypothalamic nucleus, central part
VMHDMventromedial hypothalamic nucleus, dorsomedial part
VMHVLventromedial hypothalamic nucleus, ventrolateral part
ZIzona incerta
ZIDzona incerta, dorsal part
ZIVzona incerta, ventral part
Midbrain and pons
3 Noculomotor nucleus
3PCoculomotor nucleus, parvicellular part
ATganterior tegmental nucleus
bicbrachium of the inferior colliculus
BICnucleus of the brachium of the inferior colliculus
CGAcentral gray, alpha part
CGPncentral gray of the pons
CICcentral nucleus of the inferior colliculus
CnFcuneiform nucleus
csccommissure of the superior colliculus
DCICdorsal cortex of the inferior colliculus
Dknucleus of Darkschewitsch
DLPAGdorsolateral periaqueductal gray
DMPAGdorsomedial periaqueductal gray
DMPndorsomedial pontine nucleus
DMTgdorsomedial tegmental area
DpGdeep gray layer of the superior colliculus
DpMedeep mesencephalic nucleus
DpWhdeep white layer of the superior colliculus
DRCdorsal raphe nucleus, caudal part
DRIdorsal raphe nucleus, interfascicular part
DRVdorsal raphe nucleus, ventral part
DRVLdorsal raphe nucleus, ventrolateral part
DTgCdorsal tegmental nucleus, central part
DTgPdorsal tegmental nucleus, pericentral part
ECICexternal cortex of the inferior colliculus
EMiepimicrocellular nucleus
EWEdinger-Westphal nucleus
IFinterfascicular nucleus
InCinterstitial nucleus of Cajal
InCGinterstitial nucleus of Cajal, greater part
InCointercollicular nucleus
InGintermediate gray layer of the superior colliculus
InWhintermediate white layer of the superior colliculus
IPCinterpeduncular nucleus, caudal subnucleus
IPDLinterpeduncular nucleus, dorsolateral subnucleus
IPDMinterpeduncular nucleus, dorsomedial subnucleus
IPFinterpeduncular fossa
IPIinterpeduncular nucleus, intermediate subnucleus
IPLinterpeduncular nucleus, lateral subnucleus
IPRinterpeduncular nucleus, rostral subnucleus
KFKo¨lliker-Fuse nucleus
LClocus coeruleus
LDTglaterodorsal tegmental nucleus
LDTgVlaterodorsal tegmental nucleus, ventral part
lfplongitudinal fasciculus of the pons
LPAGlateral periaqueductal gray
LPBClateral parabrachial nucleus, central part
LPBSlateral parabrachial nucleus, superior part
LPBVlateral parabrachial nucleus, ventral part
MA3medial accessory oculomotor nucleus
MCPCmagnocellular nucleus of the posterior commissure
MiTgmicrocellular tegmental nucleus
mlmedial lemniscus
mlfmedial longitudinal fasciculus
MnRmedian raphe nucleus
Mo5motor trigeminal nucleus
mpmammillary peduncle
MPBmedial parabrachial nucleus
MTmedial terminal nucleus of the accessory optic tract
Opoptic nerve layer of the superior colliculus
Pa4paratrochlear nucleus
PAGperiaqueductal gray
PBPparabrachial pigmented nucleus
PComnucleus of the posterior commissure
PMnRparamedian raphe nucleus
Pnpontine nuclei
PNparanigral nucleus
PnCpontine reticular nucleus, caudal part
PnOpontine reticular nucleus, oral part
PnVpontine reticular nucleus, ventral part
PPTgpedunculopontine tegmental nucleus
RCraphe cap
RLirostral linear nucleus of the raphe
RMCred nucleus, magnocellular part
RPCred nucleus, parvicellular part
RPFretroparafascicular nucleus
RPOrostral periolivary region
RRFretrorubral field
RtTgreticulotegmental nucleus of the pons
RtTgPreticulotegmental nucleus of the pons, pericentral part
Sagsagulum nucleus
SCsuperior colliculus
scpsuperior cerebellar peduncle (brachium conjunctivum)
SNCsubstantia nigra, compact part
SNLsubstantia nigra, lateral part
SNRsubstantia nigra, reticular part
Su3supraoculomotor periaqueductal gray
Su3Csupraoculomotor cap
SubBsubbrachial nucleus
SuGsuperficial gray layer of the superior colliculus
tstectospinal tract
VLPAGventrolateral periaqueductal gray
VLTgventrolateral tegmental area
VTAventral tegmental area
vtgxventral tegmental decussation
VTRZvisual tegmental relay zone
xscpdecussation of the superior cerebellar peduncle
Zozonal layer of the superior colliculus
Medulla
7 Nfacial nucleus
10 Ndorsal motor nucleus of vagus
12 Nhypoglossal nucleus
Ambambiguus nucleus
AParea postrema
CeCvcentral cervical nucleus
cucuneate fasciculus
Cucuneate nucleus
DMSp5dorsomedial spinal trigeminal nucleus
DPGidorsal paragigantocellular nucleus
DPOdorsal periolivary region
ECuexternal cuneate nucleus
EVenucleus of origin of efferents of the vestibular nerve
FVeF cell group of the vestibular complex
Gigigantocellular reticular nucleus
GiAgigantocellular reticular nucleus, alpha part
GiVgigantocellular reticular nucleus, ventral part
Grgracile nucleus
icpinferior cerebellar peduncle (restiform body)
Inintercalated nucleus of the medulla
InMintermedius nucleus of the medulla
IOBinferior olive, subnucleus B of medial nucleus
IOBeinferior olive, subnucleus B of medial nucleus
IOCinferior olive, subnucleus C of medial nucleus
IODinferior olive, dorsal nucleus
IOKinferior olive, cap of Kooy of the medial nucleus
IOVLinferior olive, ventrolateral protrusion
IRtintermediate reticular nucleus
Lilinear nucleus of the medulla
LPGilateral paragigantocellular nucleus
LRtlateral reticular nucleus
LRtPClateral reticular nucleus, parvicellular part
LSOlateral superior olive
LVelateral vestibular nucleus
LVPOlateroventral periolivary nucleus
MdDmedullary reticular nucleus, dorsal part
MdVmedullary reticular nucleus, ventral part
MVemedial vestibular nucleus
MVeMCmedial vestibular nucleus, magnocellular part
MVePCmedial vestibular nucleus, parvicellular part
PCRtparvicellular reticular nucleus
PCRtAparvicellular reticular nucleus, alpha part
PMnparamedian reticular nucleus
PPyparapyramidal nucleus
Prprepositus nucleus
Pr5DMprincipal sensory trigeminal nucleus, dorsomedial part
Pr5VLprincipal sensory trigeminal nucleus, ventrolateral part
PSolparasolitary nucleus
pypyramidal tract
pyxpyramidal decussation
RAmbretroambiguus nucleus
RMgraphe magnus nucleus
Ronucleus of Roller
RObraphe obscurus nucleus
RParaphe pallidus nucleus
RVLrostroventrolateral reticular nucleus
Solnucleus of the solitary tract
SolCnucleus of the solitary tract, commissural part
SolCenucleus of the solitary tract, central part
SolDLsolitary nucleus, dorsolateral part
SolDMnucleus of the solitary tract, dorsomedial part
SolGnucleus of the solitary tract, gelatinous part
SolInucleus of the solitary tract, interstitial part
SolIMnucleus of the solitary tract, intermediate part
SolMnucleus of the solitary tract, medial part
SolVsolitary nucleus, ventral part
SolVLnucleus of the solitary tract, ventrolateral part
sp5spinal trigeminal tract
Sp5Cspinal trigeminal nucleus, caudal part
Sp5Ispinal trigeminal nucleus, interpolar part
Sp5Ospinal trigeminal nucleus, oral part
Sp5ODMspinal trigeminal nucleus, oral part, dorsomedial division
Sp5OVLspinal trigeminal nucleus, oral part, ventrolateral division
SPOsuperior paraolivary nucleus
SpVespinal vestibular nucleus
SuVesuperior vestibular nucleus
VCAventral cochlear nucleus, anterior part
vscventral spinocerebellar tract
Xnucleus X
Cerebellum
1Cb1st Cerebellar lobule
2Cb2nd Cerebellar lobule
3Cb3rd Cerebellar lobule
4&5Cb4&5th Cerebellar lobules
6Cb6th Cerebellar lobule
7Cb7th Cerebellar lobule
8Cb8th Cerebellar lobule
9Cb9th Cerebellar lobule
10Cb10th Cerebellar lobule
Crus1crus 1 of the ansiform lobule
Crus2crus 2 of the ansiform lobule
FIflocculus
PFIparaflocculus
PMparamedian lobule
Simsimple lobule
Ventricular zones
3 V3rd ventricle
OVolfactory ventricle (olfactory part of lateral ventricle)
OVolfactory ventricle (olfactory part of lateral ventricle)
SVZsubventricular zone

Data availability

The authors uploaded the dataset in Dryad to maintain high standards of research reproducibility.

The following data sets were generated

References

    1. Baumeister RF
    2. Leary MR
    (1995)
    The need to belong: desire for interpersonal attachments as a fundamental human motivation
    Psychological Bulletin 117:497–529.
  1. Book
    1. Paxinos G
    2. Franklin KBJ
    (2007)
    The Mouse Brain in Stereotaxic Coordinates (3rd)
    New York: Academic Press.
    1. Silva YJ
    2. Moffat RC
    3. Walt AJ
    (1969)
    Vasopressin effect on portal and systemic hemodynamics. Studies in intact, unanesthetized humans
    JAMA 210:1065–1068.

Article and author information

Author details

  1. Anisa Azatovna Gumerova

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Data curation, Writing – review and editing
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-1449-4000
  2. Georgii Pevnev

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Data curation, Formal analysis
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0003-2015-9310
  3. Funda Korkmaz

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Investigation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-9174-8369
  4. Uliana Cheliadinova

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Data curation, Investigation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0009-0007-2308-4824
  5. Guzel Burganova

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Investigation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-7204-7268
  6. Darya Vasilyeva

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Software, Investigation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0009-0007-5121-9618
  7. Liam Cullen

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Data curation
    Competing interests
    No competing interests declared
  8. Orly Barak

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Resources
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-3041-2343
  9. Farhath Sultana

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Software, Validation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0003-4186-3390
  10. Weibin Zhou

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Validation
    Competing interests
    Reviewing editor, eLife
  11. Steven Lee Sims

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Validation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-1636-084X
  12. Emily Weiss

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Writing – review and editing
    Competing interests
    No competing interests declared
  13. Victoria Laurencin

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Investigation
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0009-0006-0801-6471
  14. Tal Frolinger

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Validation, Visualization
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-2066-6649
  15. Se-Min Kim

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Data curation, Validation
    Competing interests
    No competing interests declared
  16. Ki A Goosens

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Validation, Visualization
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-5246-2261
  17. Tony Yuen

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Supervision, Funding acquisition, Validation, Visualization, Writing – review and editing
    Competing interests
    No competing interests declared
  18. Mone Zaidi

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Conceptualization, Data curation, Supervision, Funding acquisition, Validation, Writing – review and editing
    For correspondence
    mone.zaidi@mountsinai.org
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-5911-9522
  19. Vitaly Ryu

    Institute for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
    Contribution
    Conceptualization, Data curation, Formal analysis, Supervision, Writing - original draft, Writing – review and editing
    For correspondence
    vitaly.ryu@mssm.edu
    Competing interests
    No competing interests declared
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0001-8068-4577

Funding

National Institutes of Health (AG071870)

  • Se-Min Kim
  • Tony Yuen
  • Mone Zaidi

National Institutes of Health (AG073148)

  • Tony Yuen
  • Mone Zaidi

National Institutes of Health (AG074092)

  • Mone Zaidi
  • Tony Yuen

National Institutes of Health (U19 AG060917)

  • Mone Zaidi

National Institutes of Health (DK113627)

  • Mone Zaidi

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Acknowledgements

Work at Icahn School of Medicine at Mount Sinai carried at the Center for Translational Medicine and Pharmacology was supported by R01 AG071870 to MZ, TY, and S-MK; R01 AG074092 and U01AG073148 to TY and MZ; U19 AG060917 and R01 DK113627 to MZ.

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© 2025, Gumerova et al.

This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.

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  1. Anisa Azatovna Gumerova
  2. Georgii Pevnev
  3. Funda Korkmaz
  4. Uliana Cheliadinova
  5. Guzel Burganova
  6. Darya Vasilyeva
  7. Liam Cullen
  8. Orly Barak
  9. Farhath Sultana
  10. Weibin Zhou
  11. Steven Lee Sims
  12. Emily Weiss
  13. Victoria Laurencin
  14. Tal Frolinger
  15. Se-Min Kim
  16. Ki A Goosens
  17. Tony Yuen
  18. Mone Zaidi
  19. Vitaly Ryu
(2026)
Sex-specific single transcript level atlas of vasopressin and its receptor (AVPR1a) in the mouse brain
eLife 14:RP105355.
https://doi.org/10.7554/eLife.105355.4

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