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char = l;code = 108
char = l;code = 108
char = s;code = 115
char = .;code = 46
result sql = Radiosensitization effect of luteolin on human gastric cancer SGC-7901 cells.
Radiosensitization effect of luteolin on human gastric cancer SGC-7901 cells.
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result sql = The radiosensitizing effects of luteolin were studied in the gastric cancer cell line SGC-7901. SGC-7901 cells were treated with luteolin or/and irradiation, and radiosensitizing effects were assessed by colony-forming assay with cells and nude mice. In order to study the underlying mechanism, the levels of apoptosis-related proteins, the activities of caspase-3 and -9, and the production of PGE2 were measured. The results showed that luteolin could enhance irradiation-induced colonogenic inhibition and the activities of Caspase-3 and -9. The remarkable down-regulation of Bcl-2 and release of cytochrome C were also observed. In addition, significantly reduced production of PGE(2) was observed in luteolin plus radiation treatment by ELISA, as well as decreased expression levels of VEGF and HIF-1 alpha. Finally, luteolin significantly enhances the radioresponse of human tumors transplanted into nude mice. Our results indicate that luteolin may be a promising radiosensitizer for use in the treatment of gastric cancer.

Publication: J. Biol. Regul. Homeost. Agents 2009 Apr-Jun ;23(2)::71-8.
Publication Date: 2009 Apr-Jun
Study Author(s): Zhang, Q;Wan, L;Guo, Y;Cheng, N;Cheng, W;Sun, Q;Zhu, J;
Institution: Department of Gastroenterology, Shanghai Sixth Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China. [email protected]
Shortcut link to this study:
The radiosensitizing effects of luteolin were studied in the gastric cancer cell line SGC-7901. SGC-7901 cells were treated with luteolin or/and irradiation, and radiosensitizing effects were assessed by colony-forming assay with cells and nude mice. In order to study the underlying mechanism, the levels of apoptosis-related proteins, the activities of caspase-3 and -9, and the production of PGE2 were measured. The results showed that luteolin could enhance irradiation-induced colonogenic inhibition and the activities of Caspase-3 and -9. The remarkable down-regulation of Bcl-2 and release of cytochrome C were also observed. In addition, significantly reduced production of PGE(2) was observed in luteolin plus radiation treatment by ELISA, as well as decreased expression levels of VEGF and HIF-1 alpha. Finally, luteolin significantly enhances the radioresponse of human tumors transplanted into nude mice. Our results indicate that luteolin may be a promising radiosensitizer for use in the treatment of gastric cancer.
PMID: 19589287

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