Nitidine chloride (cas 13063-04-2) induces apoptosis and inhibits tumor cell proliferation via suppressing ERK signaling pathway in renal cancer

Add time:09/29/2019    Source:sciencedirect.com

Nitidine chloride (cas 13063-04-2) (NC), a natural bioactive alkaloid derived from Zanthoxylum nitidum (Roxb) DC, has been shown to have inhibitory effects on various tumors. However, whether NC could exert anti-cancer activity and the underlying mechanisms have not been elucidated in renal cancer cells. In this study, we demonstrated the growth inhibitory and pro-apoptotic effects of NC on renal cancer cells both in vitro and in vivo. With cell viability and flow cytometric apoptosis assays, we found that NC potently suppressed the growth of 786-O and A498 cells in a time- and dose- dependent manner. Consistently, the xenograft model performed in nude mice exhibited reduced tumor growth with NC treatment. Mechanically, we presented that NC significantly decreased phosphorylation of ERK and Akt, accompanied by up-regulation of P53, Bax, cleavage caspase-3 and cleavage PARP, downregulation of Bcl-2, caspase-3 and PARP. Furthermore, a specific MEK inhibitor, PD98059, could potentiate the pro-apoptotic effects of NC, which indicated that NC might trigger apoptosis in renal cancer cells partly via inhibition of ERK activity. Taken together, our results imply that NC could be developed as a potential anticancer agent to renal cancer and worthy of further studies.

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