For silencing of FAF1 gene expression, the pGIPZ lentiviral vector, which contains FAF1-specific shRNA sequences was purchased from Open Biosystems. (http://www.openbiosystems.com). Lentiviruses were produced as previously described [27 (link)]. In brief, HEK293T cells were transiently transfected with packaging plasmids (psPAX2 and pMD2.VSV-G) and pGIPZ containing non-specific shRNA or FAF1-specific shRNA sequences using Lipofectamine 2000. At 48–72 hr post-transfection, virus-containing media was collected and filtrated (0.45 μm filter, Millipore).
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