172 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    microRNA-mediated regulation of microRNA machinery controls cell fate decisions

    Qiuying Liu et al.
    Genetic and biochemical analyses reveal that two stem-cell-specific microRNAs control stem cell fate decisions between pluripotency and differentiation through repressing Ago2, a key component of the microRNA machinery.
    1. Medicine
    2. Microbiology and Infectious Disease

    Non-nucleoside reverse transcriptase inhibitor-based combination antiretroviral therapy is associated with lower cell-associated HIV RNA and DNA levels compared to protease inhibitor-based therapy

    Alexander O Pasternak et al.
    In two independent cohorts, NNRTI-based cART regimens are associated with significantly lower cell-associated HIV RNA levels than PI-based regimens, suggesting more potent suppression of residual virus replication by NNRTI-based regimens.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Endothelial pannexin 1–TRPV4 channel signaling lowers pulmonary arterial pressure in mice

    Zdravka Daneva et al.
    Endothelial pannexin 1-P2Y2 purinergic receptor-TRPV4 channel signaling, facilitated by caveolin-1, is a novel pathway for lowering pulmonary arterial pressure.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    An essential, kinetoplastid-specific GDP-Fuc: β-D-Gal α-1,2-fucosyltransferase is located in the mitochondrion of Trypanosoma brucei

    Giulia Bandini et al.
    The activity, localization, and essentiality of TbFUT1, together with its ability to complement Leishmania parasites lacking the homologous gene, suggest the presence of an uncommon and conserved mitochondrial fucosylation pathway required for kinetoplastid parasites viability.
    1. Neuroscience

    The severity of microstrokes depends on local vascular topology and baseline perfusion

    Franca Schmid et al.
    The number of inflows and outflows at the occluded capillary governs the local flow reduction, and the different topological configurations are probably designed for distinct functional tasks.
    1. Structural Biology and Molecular Biophysics

    Sterically confined rearrangements of SARS-CoV-2 Spike protein control cell invasion

    Esteban Dodero-Rojas et al.
    SARS-CoV-2 entry mechanism through membrane fusion is regulated by the spike protein glycosylation state.
    1. Structural Biology and Molecular Biophysics

    Structure and analysis of nanobody binding to the human ASIC1a ion channel

    Yangyu Wu et al.
    Development of specific and high-affinity nanobodies to probe the structure of human acid sensing ion channel-1a and as binding modifiers of the toxins PcTx and MitTx1.
    1. Physics of Living Systems

    Live imaging and biophysical modeling support a button-based mechanism of somatic homolog pairing in Drosophila

    Myron Barber Child VI et al.
    Biophysical modeling and quantitative live-cell imaging converge to show that the century-old puzzle of somatic homolog pairing in Drosophila operates via a button model.
    1. Microbiology and Infectious Disease

    A novel mechanosensitive channel controls osmoregulation, differentiation, and infectivity in Trypanosoma cruzi

    Noopur Dave et al.
    Structurally divergent bacterial-like mechanosensitive channels control multiple cellular functions in protozoan parasites.
    1. Neuroscience

    Attenuated dopamine signaling after aversive learning is restored by ketamine to rescue escape actions

    Mingzheng Wu et al.
    Interconnected ventral tegmental area and medial prefrontal cortex circuits causally link dopamine dynamics, aversive learning, and the effects of a promising rapidly acting antidepressant ketamine.

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