2,823 results found
    1. Microbiology and Infectious Disease

    Francisella tularensis enters a double membraned compartment following cell-cell transfer

    Shaun P Steele et al.
    Francisella tularensis spreads from cell to cell when macrophages engulf small portions of infected cells upon cell contact, forming distinctive a double membraned endosome containing multiple bacteria per individual vacuole.
    1. Cancer Biology

    Horizontal transfer of whole mitochondria restores tumorigenic potential in mitochondrial DNA-deficient cancer cells

    Lan-Feng Dong et al.
    A genetic approach documents that mitochondrial DNA moves from donor cells to recipient mtDNA-depleted cells in whole mitochondria and that this restores mitochondrial respiration and the capacity of the cells to form tumours.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Direct live imaging of cell–cell protein transfer by transient outer membrane fusion in Myxococcus xanthus

    Adrien Ducret et al.
    Physical contact between two Myxococcus xanthus cells is sufficient to fuse their outer membrane transiently and exchange outer membrane proteins and lipids at high efficiency.
    1. Cancer Biology
    2. Cell Biology

    Bim escapes displacement by BH3-mimetic anti-cancer drugs by double-bolt locking both Bcl-XL and Bcl-2

    Qian Liu et al.
    The pro-apoptotic BH3-protein Bim contains two distinct binding sites for anti-apoptotic proteins that together confer resistance of Bim/Bcl-2 and Bim/Bcl-XL complexes to BH3-mimetic drugs under development for use in humans.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Guanylate binding proteins directly attack Toxoplasma gondii via supramolecular complexes

    Elisabeth Kravets et al.
    Cellular immunity against Toxoplasma parasites is orchestrated by GBP complexes attacking the parasite membrane.
    1. Stem Cells and Regenerative Medicine
    2. Immunology and Inflammation

    MHC-compatible bone marrow stromal/stem cells trigger fibrosis by activating host T cells in a scleroderma mouse model

    Yoko Ogawa et al.
    PDGFRα+ Sca-1+ bone marrow stromal/stem cells in whole bone marrow grafts can trigger the onset of autoimmune-related fibrosis in a mouse model of scleroderma.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Regulation of signaling directionality revealed by 3D snapshots of a kinase:regulator complex in action

    Felipe Trajtenberg et al.
    The molecular mechanism of switching between phosphotransferase- and phosphatase-competent states in histidine-kinases has been uncovered, through direct crystallographic observation of bona fide complexes between a histidine-kinase and its response regulator from Bacillus subtilise.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Punctuated evolution and transitional hybrid network in an ancestral cell cycle of fungi

    Edgar M Medina et al.
    Cell cycle network evolution in a fungal ancestor was punctuated by the arrival of a viral DNA-binding protein that was permanently incorporated into the regulatory network controlling cell cycle entry.

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