Wang YJ, Niu XP, Yang L, Han Z, Ma YJ. Effects of celecoxib on cycle kinetics of gastric cancer cells and protein expression of cytochrome C and caspase-9.
Asian Pac J Cancer Prev 2013;
14:2343-7. [PMID:
23725138 DOI:
10.7314/apjcp.2013.14.4.2343]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE
This investigation aimed to determine effects of celecoxib on the cell cycle kinetics of the gastric cancer cell line MGC803 and the mechanisms involved by assessing expression of cytochrome C and caspase-9 at the protein level.
METHODS
Cell proliferation of MGC803 was determined by MTT assay after treatment with celecoxib. Apoptosis was assessed using fluorescence staining and cell cycle kinetics by flow cytometry. Western blotting was used to detect the expression of caspase-9 protein and of cytochrome C protein in cell cytosol and mitochondria.
RESULTS
Celecoxib was able to restrain proliferation and induce apoptosis in a dose- and time- dependent manner, inducing G0/G1 cell cycle arrest, release of cytochrome C into the cytosol, and cleavage of pro-caspase-9 into its active form.
CONCLUSION
Celecoxib can induce apoptosis in MGC803 cells through a mechanism involving cell cycle arrest, mitochondrial cytochrome C release and caspase activation.
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