1,527 results found
    1. Medicine
    2. Stem Cells and Regenerative Medicine

    Adult stem cell-derived complete lung organoid models emulate lung disease in COVID-19

    Courtney Tindle et al.
    An integrated stem cell-based disease modeling and computational approach demonstrates how proximal airway epithelium is critical for SARS-CoV-2 infectivity and distal alveolar cells are critical for simulating the host responses.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Comparison of transcriptional initiation by RNA polymerase II across eukaryotic species

    Natalia Petrenko, Kevin Struhl
    Although the preinitiation complex for transcriptional initiation by RNA polymerase II contains highly conserved general transcription factors, there are kinetic and compositional differences in the initiation process among eukaryotic species.
    1. Developmental Biology
    2. Neuroscience

    Maturation of Purkinje cell firing properties relies on neurogenesis of excitatory neurons

    Meike E van der Heijden et al.
    Intersectional genetics show that excitatory neurons are essential for the functional and anatomical maturation of cerebellar circuits in mice.
    1. Medicine

    Aorta smooth muscle-on-a-chip reveals impaired mitochondrial dynamics as a therapeutic target for aortic aneurysm in bicuspid aortic valve disease

    Mieradilijiang Abudupataer et al.
    An aorta smooth muscle-on-a-chip model indicated that NOTCH1 insufficiency in HAoSMCs induced phenotypic switching from a contractile to a synthetic phenotype accompanied by an impairment of mitochondrial fusion, implying its potential role as a therapeutic target for BAV-TAA.
    1. Microbiology and Infectious Disease

    Parasite Transmission: A two-stage solution

    Fabien Guegan, Luisa Figueiredo
    The parasite that causes African sleeping sickness can be transmitted from mammals to tsetse flies in two stages of its lifecycle, rather than one as was previously thought.
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    1. Stem Cells and Regenerative Medicine

    Mesenchymal stromal cell aging impairs the self-organizing capacity of lung alveolar epithelial stem cells

    Diptiman Chanda et al.
    Lung stem cell niche aging is associated with altered bioenergetics, metabolic dysfunction, and senescence of mesenchymal stromal cells that restricts 3D organoid, or alveolosphere formation, potentially accounting for reduced regenerative capacity with aging.
    1. Neuroscience

    L-DOPA modulates activity in the vmPFC, nucleus accumbens, and VTA during threat extinction learning in humans

    Roland Esser et al.
    Encoding an expected, but absent, threat is modulated by dopaminergic neurotransmission that regulates success of extinction learning in humans.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Drosophila STING protein has a role in lipid metabolism

    Katarina Akhmetova et al.
    Drosophila STING protein, or stimulator of interferon genes, has a direct but previously unknown role in the lipid metabolism.

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