372 results found
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Optical estimation of absolute membrane potential using fluorescence lifetime imaging

    Julia R Lazzari-Dean et al.
    Fluorescence lifetime imaging microscopy, paired with fluorescent, voltage-sensitive dyes, provides a method for measuring and quantifying membrane potentials of living cells.
    1. Developmental Biology

    Patched1 and Patched2 inhibit Smoothened non-cell autonomously

    Brock Roberts et al.
    Ptch1/2 can lower the sensitivity of Smo to activation by Shh via the secretion of a sterol precursor.
    1. Stem Cells and Regenerative Medicine

    A mex3 homolog is required for differentiation during planarian stem cell lineage development

    Shu Jun Zhu et al.
    The planarian mex3-1 gene is required for non-stem cell fates and suppresses a stem cell fate in differentiating cells.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Phenotypic states become increasingly sensitive to perturbations near a bifurcation in a synthetic gene network

    Kevin Axelrod et al.
    Perturbations in the extracellular environment drive transitions from a highly stable memory state to an alternative phenotype in microorganisms.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    PCGF6-PRC1 suppresses premature differentiation of mouse embryonic stem cells by regulating germ cell-related genes

    Mitsuhiro Endoh et al.
    PCGF6 links sequence specific target recognition by the MAX/MGA transcription factor complex to PRC1 (polycomb repressive complex 1) -dependent transcriptional silencing of germ cell-specific genes in mouse pluripotent stem cells.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Affinity and dose of TCR engagement yield proportional enhancer and gene activity in CD4+ T cells

    Karmel A Allison et al.
    Pre-existing enhancers interpret T cell signaling strength in an analogue manner to direct quantitative changes in gene expression within the context of an overall digital response.
    1. Cell Biology
    2. Genetics and Genomics

    KPNB1 mediates PER/CRY nuclear translocation and circadian clock function

    Yool Lee et al.
    KPNB1 regulates rhythmic spatio-temporal nuclear import of the PER/CRY complex and is required for negative feedback repression in mammalian and fly clock function.
    1. Developmental Biology

    p53 activity is selectively licensed in the Drosophila stem cell compartment

    Annika Wylie et al.
    Ancient features of the p53 regulatory network are coupled to the stem cell compartment in normal and pathologic contexts.
    1. Cell Biology
    2. Cancer Biology

    miR-142 regulates the tumorigenicity of human breast cancer stem cells through the canonical WNT signaling pathway

    Taichi Isobe et al.
    Insights into the roles and mechanisms of two of the miRNAs upregulated in human breast cancer stem cells in at least some breast cancers are presented.
    1. Developmental Biology

    Hemodynamic-mediated endocardial signaling controls in vivo myocardial reprogramming

    Manuel Gálvez-Santisteban et al.
    The heart is able to sense and adaptively respond to environmental changes due to cardiac injury through flow-mediated mechanisms that regulate cardiomyocyte reprogramming and regeneration.

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