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Fig. 6 | Molecular Cancer

Fig. 6

From: Over-expression of cathepsin B in hepatocellular carcinomas predicts poor prognosis of HCC patients

Fig. 6

CTSB regulates MMP-9 through PI3K/Akt signal pathway. a Stable expression of CTSB in MHCC-97 L increased the protein level of p-Akt and MMP-9. b Down-regulation of CTSB in MHCC-97H decreased the protein level of p-Akt and MMP-9. c MMP-9 protein of MHCC-97H/CTSB-shRNA cells stably transfected with pcDNA-MMP-9 increased most significant compared to MHCC-97H/CTSB-shRNA cells. d CTSB knockdown cells stably transfected with MMP-9 showed increased invasive ability. e Treatment of MHCC-97 L/CTSB cells with LY294002, a PI3K inhibitor, led to down-regulation of MMP-9 at protein levels. f MHCC-97 L/CTSB cells treated with LY294002 show decreased invasive ability. (**P < 0.01 as compared to parental groups, *P < 0.05 as compared to parental groups)

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