144 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    PUMILIO hyperactivity drives premature aging of Norad-deficient mice

    Florian Kopp et al.
    Long noncoding RNA Norad performs an essential function in mammalian physiology by inhibiting the activity of PUMILIO RNA binding proteins, thereby suppressing a multi-system degenerative phenotype resembling premature aging.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Noncoding RNA: Aging well with Norad

    Filipa Carvalhal Marques, Igor Ulitsky
    In mice, deleting a long noncoding RNA drives premature aging.
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    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    Haploinsufficiency of Trp53 dramatically extends the lifespan of Sirt6-deficient mice

    Shrestha Ghosh et al.
    The dramatic extension of lifespan in Sirt6-deficient mice by Trp53 haploinsufficiency suggests that SIRT6 has distinct biological function from SIRT1 in regulating p53 activity and preventing cells from senescence/apoptosis.
    1. Chromosomes and Gene Expression

    Progerin reduces LAP2α-telomere association in Hutchinson-Gilford progeria

    Alexandre Chojnowski et al.
    Expression of the lamina-associated polypeptide α (LAP2α) prevents premature cellular ageing caused by expression of progerin in Hutchinson-Gilford progeria syndrome.
  1. Point of View: Basic research at the epicenter of an epidemic

    William R Bishai
    William R Bishai, director of the KwaZulu-Natal Research Institute for Tuberculosis and HIV (K-RITH), argues that the best place to carry out research into a disease is in its midst.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Science Forum: Viral factors in influenza pandemic risk assessment

    Marc Lipsitch et al.
    We identify key strengths and limitations in use of viral genotyping and phenotyping to estimate pandemic risk from influenza A viruses, focusing on 3 traits, hemagglutinin binding specificity, hemagglutinin pH of activation, and polymerase complex efficiency.
    1. Computational and Systems Biology
    2. Developmental Biology

    Tissue Regeneration: Regional differences

    Zhou Yu, Ting Chen
    The skin is a complex landscape containing regions in which hair follicles exhibit different types of behavior.
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    1. Developmental Biology
    2. Human Biology and Medicine

    Type XVII collagen coordinates proliferation in the interfollicular epidermis

    Mika Watanabe et al.
    Type XVII collagen, a transmembranous protein in basal keratinocytes, suppresses interfollicular epidermal proliferation in neonatal and aged skin, and helps rejuvenate epidermis.
    1. Developmental Biology

    Lunatic fringe-mediated Notch signaling regulates adult hippocampal neural stem cell maintenance

    Fatih Semerci et al.
    In adult mouse hippocampus, neural stem cell and their progeny communicate via Lunatic Fringe mediated Notch signaling to regulate stem cell quiescence, division, and fate.
    1. Cell Biology
    2. Immunology and Inflammation

    Non-canonical antagonism of PI3K by the kinase Itpkb delays thymocyte β-selection and renders it Notch-dependent

    Luise Westernberg et al.
    Antagonistic signaling by the kinases PI3K and Itpkb limits the kinetics and enforces the Notch-dependence of beta-selection – the most important cell-fate determining process in alpha beta T cell development.

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