1,229 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    MAF1 represses CDKN1A through a Pol III-dependent mechanism

    Yu-Ling Lee et al.
    Pol II-mediated transcription and chromatin looping of CDKN1A are repressed by MAF1 through the regulation of Pol III activity.
    1. Human Biology and Medicine
    2. Neuroscience

    POMC neurons expressing leptin receptors coordinate metabolic responses to fasting via suppression of leptin levels

    Alexandre Caron et al.
    A subset of hypothalamic POMC neurons that express leptin receptors control metabolic responses to changing energy availability including regulating blood glucose and leptin levels.
    1. Cell Biology

    Multi-phosphorylation reaction and clustering tune Pom1 gradient mid-cell levels according to cell size

    Veneta Gerganova et al.
    Advanced microscopy techniques reveal that clusters of Pom1 kinase at the membrane represent the functional unit that shape the concentration gradients and modulate Pom1 mid-cell levels according to cell size.
    1. Neuroscience

    Antagonistic modulation of NPY/AgRP and POMC neurons in the arcuate nucleus by noradrenalin

    Lars Paeger et al.
    The coordinated differential modulation of satiety signaling POMC- and hunger signaling AgRP- neurons in the arcuate nucleus of the hypothalamus assigns an important role to noradrenalin to promote feeding.
    1. Neuroscience

    Energy imbalance alters Ca2+ handling and excitability of POMC neurons

    Lars Paeger et al.
    The development of diet-dependent obesity results in the deterioration of calcium homeostasis in pro-opiomelanocortin-expressing neurons and impaired function of the same neurons.
    1. Neuroscience

    Arcuate hypothalamic AgRP and putative POMC neurons show opposite changes in spiking across multiple timescales

    Yael Mandelblat-Cerf et al.
    Gradual changes in the firing of specific hypothalamic neurons over many hours signal falling energy levels, while short-lived changes over seconds and minutes signal the availability of food.
    1. Human Biology and Medicine
    2. Neuroscience

    Insulin regulates POMC neuronal plasticity to control glucose metabolism

    Garron T Dodd et al.
    Feeding and fasting associated alterations in proopiomelanocortin neuronal responses to insulin coordinate glucose metabolism.
    1. Neuroscience

    Central Dicer-miR-103/107 controls developmental switch of POMC progenitors into NPY neurons and impacts glucose homeostasis

    Sophie Croizier et al.
    Loss miRNA maturation in proopiomelanocortin (POMC) neurons causes metabolic dysregulation and favors the differentiation of Pomc progenitors into neuropeptide Y neurons, a developmental process that appears to specifically involve miR-103/107.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Explosive mutation accumulation triggered by heterozygous human Pol ε proofreading-deficiency is driven by suppression of mismatch repair

    Karl P Hodel et al.
    When mismatch repair is compromised heterozygous loss of Pol ε proofreading is sufficient to drive a subset of the observed clinical characteristics of Pol ε tumors.

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