134 results found
    1. Cancer Biology
    2. Cell Biology

    Cavin3 released from caveolae interacts with BRCA1 to regulate the cellular stress response

    Kerrie-Ann McMahon et al.
    Cavin3 associates with BRCA1 upon disassembly of caveolae in response to mechanical and non-mechanical stressors to influence DNA repair and apoptosis.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Functional and mutational landscapes of BRCA1 for homology-directed repair and therapy resistance

    Rachel W Anantha et al.
    Systematic analyses of natural variants and artificial mutants establish functional landscapes of BRCA1 for homology-directed repair (HDR) and therapy resistance and identify the BRCA1-PALB2 interaction as a key control point for HDR pathway choice.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Small-molecule inhibitors identify the RAD52-ssDNA interaction as critical for recovery from replication stress and for survival of BRCA2 deficient cells

    Sarah R Hengel et al.
    Small molecule inhibitors identified in a biophysical high-throughout screening assay confirm the importance of the interaction between single-stranded DNA and the protein RAD52 for the survival of BRCA2-depleted cells.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Role of BRCA2 DNA-binding and C-terminal domain in its mobility and conformation in DNA repair

    Maarten W Paul et al.
    Highly conserved C-terminal domains of the tumor suppressor BRCA2 are not essential for accumulation at damaged DNA but affect conformation and cell survival, implying roles beyond delivering strand-exchange protein RAD51.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    53BP1 and BRCA1 control pathway choice for stalled replication restart

    Yixi Xu et al.
    53BP1 and BRCA1 antagonistically control a temporal choice of two distinct pathways to restart stalled replication forks in a DNA double stand repair-independent manner.
    1. Chromosomes and Gene Expression

    MicroRNAs down-regulate homologous recombination in the G1 phase of cycling cells to maintain genomic stability

    Young Eun Choi et al.
    MicroRNAs tightly control the cellular level of homologous recombination (HR) factors in the G1 phase, and failure of this control system results in an ectopic increase in HR proteins in G1 cells leading to impaired DNA repair.
    1. Cell Biology

    A missense in HSF2BP causing primary ovarian insufficiency affects meiotic recombination by its novel interactor C19ORF57/BRME1

    Natalia Felipe-Medina et al.
    Genetic and biochemical analysis reveal a variant in HSF2BP causing POI and C19ORF57/BRME1 as an interactor and stabilizer of HSF2BP by forming a complex with BRCA2, RAD51, RPA and PALB2.
    1. Chromosomes and Gene Expression

    p53 orchestrates DNA replication restart homeostasis by suppressing mutagenic RAD52 and POLθ pathways

    Sunetra Roy et al.
    p53 suppresses genome instability by direct role at stalled replication forks for pathway regulation that explains transcription-independent p53 tumor-suppressor functions.
    1. Cancer Biology
    2. Cell Biology

    A non-genetic, cell cycle-dependent mechanism of platinum resistance in lung adenocarcinoma

    Alvaro Gonzalez Rajal et al.
    Platinum chemotherapy resistance is a complex process involving multiple signalling pathways and a novel, non-genetic, cell cycle-dependent mechanism that promotes tumour regrowth and highlights potential complications for combination therapies in human lung adenocarcinoma.
    1. Cancer Biology
    2. Cell Biology

    TGF-β reduces DNA ds-break repair mechanisms to heighten genetic diversity and adaptability of CD44+/CD24− cancer cells

    Debjani Pal et al.
    Phenotypic diversity and cell state transition (i.e., acquisition of a CD44+/CD24- cell state or exposure to TGF-beta) can spur intra-tumor genetic heterogeneity and contribute to acquired resistance.

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