Fig. 2. Stable CTSB knockdown in two cell lines suppresses cell growth of RCC in vitro.
a, b CTSB knockdown in two independent clones (shCTSB1 and shCTSB2 vs vector control LKO) reduced RNA levels of CTSB as assayed by real-time PCR. c, d Reduced levels of full-length and cleaved (active) CTSB protein, as assayed by immunoblot. e–h CTSB reduction (shCTSB1 and shCTSBs2) in both the 786-O and A498 lines reduced colony formation as compared to LKO. i–j CTSB down-modulation in 786-O or in A498 cells reduced cell proliferation, as assessed by luminometry