107 results found
    1. Cell Biology
    2. Developmental Biology

    The EMT transcription factor Snai1 maintains myocardial wall integrity by repressing intermediate filament gene expression

    Alessandra Gentile et al.
    The transcription factor Snai1b maintains the myocardial wall integrity by limiting cell extrusions and regulating the intermediate filament gene desmin b.
    1. Cell Biology

    Single-cell transcriptomics defines heterogeneity of epicardial cells and fibroblasts within the infarcted murine heart

    Julia Hesse et al.
    The transcriptional landscape of epicardial cells revealed 11 cell populations that differentially expressed early cardiac genes and numerous cardioprotective paracrine factors defining their regenerative potential.
    1. Evolutionary Biology

    Myoglobin primary structure reveals multiple convergent transitions to semi-aquatic life in the world's smallest mammalian divers

    Kai He et al.
    Ancestral sequence reconstruction of an essential muscle protein involved in oxygen storage and transport accurately tracks secondary aquatic transitions in a speciose clade of insectivorous mammals.
    1. Developmental Biology

    SORBS2 is a genetic factor contributing to cardiac malformation of 4q deletion syndrome patients

    Fei Liang et al.
    Combined evidence of human genetics, in vitro cardiomyocyte differentiation, and mouse model indicates that SORBS2 is a regulator of second heart field development and its deficiency causes seemingly opposite atrial septal defects.
    1. Developmental Biology

    In vivo proximity labeling identifies cardiomyocyte protein networks during zebrafish heart regeneration

    Mira I Pronobis et al.
    Proximity labeling-based proteomic strategies applied in zebrafish identify new insights into protein network changes in heart muscle cells during regeneration and implicate Rho A as a target of ErbB2 signaling during zebrafish heart regeneration.
    1. Physics of Living Systems
    2. Stem Cells and Regenerative Medicine

    Global and local tension measurements in biomimetic skeletal muscle tissues reveals early mechanical homeostasis

    Arne D Hofemeier et al.
    Combining global and local force measurements of reconstituted muscle tissue using a new chamber system that is compatible with high-resolution microscopy shows mechanical homeostasis already within a week.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Myosin with hypertrophic cardiac mutation R712L has a decreased working stroke which is rescued by omecamtiv mecarbil

    Aaron Snoberger et al.
    Mechanochemical defects of a β-cardiac myosin mutation that results in severe hypertrophic cardiomyopathy are reported and the heart failure drug omecamtiv mecarbil rescues these defects.
    1. Cell Biology

    Generation of stress fibers through myosin-driven reorganization of the actin cortex

    Jaakko I Lehtimäki et al.
    Live-cell microscopy studies revealed that stress fibers can be generated de novo from the actin cortex without the involvement of stress fiber precursors.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    To lie or not to lie: Super-relaxing with myosins

    Suman Nag, Darshan V Trivedi
    A perspective of the energy-sparing super-relaxed state of myosin and its evolutionary role in modulating skeletal and cardiac muscle power under different physiological and pathophysiological perturbations.
    1. Developmental Biology

    The Hippo pathway controls myofibril assembly and muscle fiber growth by regulating sarcomeric gene expression

    Aynur Kaya-Çopur et al.
    Muscle fiber growth during development is controlled by the Hippo pathway that links the assembly state of the contractile sarcomeres with the transcriptional state of the sarcomeric genes.

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