Apoptosis of human pancreatic cancer cells induced by Triptolide
AIM: To investigate apoptosis in human pancreatic cancer cells induced by Triptolide (TL), and the relationship between this apoptosis and expression of caspase-3' bcl-2 and bax. METHODS: Human pancreatic cancer cell line SW1990 was cultured in DMEM media for this study. MTT assay was used to determ...
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Published in | World journal of gastroenterology : WJG Vol. 14; no. 10; pp. 1504 - 1509 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Department of Gastroenterology,Affiliated Hospital of Nantong University,Nantong 226001,Jiangsu Province,China
14.03.2008
The WJG Press and Baishideng |
Subjects | |
Online Access | Get full text |
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Summary: | AIM: To investigate apoptosis in human pancreatic cancer cells induced by Triptolide (TL), and the relationship between this apoptosis and expression of caspase-3' bcl-2 and bax. METHODS: Human pancreatic cancer cell line SW1990 was cultured in DMEM media for this study. MTT assay was used to determine the cell growth inhibitory rate in vitro. Flow cytometry and TUNEL assay were used to detect the apoptosis of human pancreatic cancer cells before and after TL treatment. RT-PCR was used to detect the expression of apoptosis-associated gene caspase-3' bcl-2 and bax. RESULTS: TL inhibited the growth of human pancreatic cancer cells in a dose-and time-dependent manner. TL induced human pancreatic cancer cells to undergo apoptosis with typically apoptotic characteristics. TUNEL assay showed that after the treatment of human pancreatic cancer cells with 40 ng/mL TL for 12 h and 24 h, the apoptotic rates of human pancreatic cancer cells increased significantly. RT-PCR demonstrated that caspase-3 and bax were significantly up-regulated in SW1990 cells treated with TL while bcl-2 mRNA was not. CONCLUSION: TL is able to induce the apoptosis in human pancreatic cancer cells. This apoptosis may be mediated by up-regulating the expression of apoptosisassociated caspase-3 and bax gene. |
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Bibliography: | Bcl-2 Triptolide; Pancreatic cancer; Apoptosis;Bcl-2; Caspase-3; Bax 14-1219/R Triptolide Pancreatic cancer Bax Caspase-3 R735.9 Apoptosis Telephone: +86-513-85052079 Author contributions: Zhou GX, Ding XL contributed equally to this work; Zhou GX, Ding XL, Huang JF, Zhang H and Wu SB designed research; Ding XL, Zhang H, Wu SB, Cheng JP and Wei Q performed research; Zhou GX, Ding XL and Zhang H analyzed data; Zhou GX and Ding XL wrote the paper. Fax: +86-513-85519820 Correspondence to: Guo-Xiong Zhou, Department of Gastro-enterology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China. zhouguoxiong@medmail.com.cn |
ISSN: | 1007-9327 2219-2840 |
DOI: | 10.3748/wjg.14.1504 |