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Accession IconGSE54264

Expression data of Brti1 shRNA knockdown and control shRNA in MCF-10A cells

Organism Icon Homo sapiens
Sample Icon 7 Downloadable Samples
Technology Badge IconIllumina HumanWG-6 v3.0 expression beadchip

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Description
Homologous recombination-mediated DNA repair deficiency (HRD) predisposes to cancer development, but also provides therapeutic opportunities Here, we identified an HRD gene signature that robustly predicted HRD status Unexpectedly, concurrent loss of PTEN in BRCA1-deficient cells might extensively rewire the HR repair network and confer resistance to PARP inhibitor, partially through over-expression of TTK We used the HRD gene signature as a drug discovery tool and found several PARP-inhibitor-synergizing agents through the connectivity map Thus gene expression profiling can be used to define the functional status of the HR repair network providing prognostic and therapeutic information
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