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脂肪酸酰胺水解酶抑制剂URB597诱导人肝癌细胞MHCC97H凋亡的 作用及其机制研究.
- Source :
-
Pharmaceutial Care & Research . Aug2015, Vol. 15 Issue 4, p261-264. 4p. - Publication Year :
- 2015
-
Abstract
- Objective: To discuss the effects of fatty acid amide hydrolase inhibitor URB597 on the apoptosis of human hepatoma cell line MHCC97H in vitro and its underlying mechanism. Methods: Different concentrations of URB597 (1, 5 and 10 μmol/L respectively) were administered to incubate MHCC97H. Flow cytometry was used to analyze the effects of URB597 on apoptosis in MHCC97H cells. Western-blot assay was applied to detect the levels of the apoptosis-inducing factors (AIF), Bcl-2 and Bax with or without URB597. Caspase 3 detection kit was used to determine the activity of caspase 3. Results: (1) Following treatment with URB597 at different concentrations (1, 5 and 10 μmol/L) for 1, 4 and 7 days, the number of apoptotic cells was significantly increased with a time-dependent tendency. (2) After treatment with URB597 at different concentrations for 4 days, the activity of caspase 3 and AIF levels in the nucleus were increased significantly. (3) Following treatment with URB597 at a concentration of 10 μmol/L for 4 days, the expression level of Bcl-2 was obviously down-regulated, while Bax level was obviously up-regulated, when compared with those of the control group, and the Bcl-2/Bax ratio was obviously reduced. PI3K inhibitor LY294002 could also significantly reduce the Bcl-2/Bax ratio. However, as compared with the 10 μmol/L control level, its effect on the Bcl-2/Bax ratio was relatively lower. Conclusion: URB597 could enhance the apoptosis of MHCC97H cells by down-regulating the ratio of Bcl-2/Bax, further inducing caspase-dependent and caspase-independent cell apoptotic pathway, which was partial-dependent on PI3K/Akt signal pathway. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Chinese
- ISSN :
- 16712838
- Volume :
- 15
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Pharmaceutial Care & Research
- Publication Type :
- Academic Journal
- Accession number :
- 109301430
- Full Text :
- https://doi.org/10.5428/pcar20150408