Anti-gastric cancer effect of melatonin and Bcl-2, Bax, p21 and p53 expression changes

In order to investigate the role of melatonin in inhibiting the proliferation of murine gastric cancer and the underlying molecular mechanism, we performed an in vivo study by inoculating murine foregastric carcinoma (MFC) cells in mice, and then tumor-bearing mice were treated with different concen...

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Bibliographic Details
Published inSheng li hsüeh pao Vol. 66; no. 6; p. 723
Main Authors Xu, Li, Jin, Qing-Dong, Gong, Xi, Liu, Hui, Zhou, Rui-Xiang
Format Journal Article
LanguageChinese
Published China 25.12.2014
Subjects
Animals
Apoptosis
bcl-2-Associated X Protein - metabolism
Melatonin - pharmacology
Mice
Proto-Oncogene Proteins c-bcl-2 - metabolism
Stomach Neoplasms - drug therapy
Stomach Neoplasms - metabolism
Tumor Suppressor Protein p53 - metabolism
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Summary:In order to investigate the role of melatonin in inhibiting the proliferation of murine gastric cancer and the underlying molecular mechanism, we performed an in vivo study by inoculating murine foregastric carcinoma (MFC) cells in mice, and then tumor-bearing mice were treated with different concentrations of melatonin (i.p.). The changes of Bcl-2, Bax, p21 and p53 expressions in tumor tissue were detected by using real-time fluorescence quantitative RT-PCR and Western blot. We found that: (1) melatonin resulted in reductions of tumor's volume and weight in the gastric cancer-bearing mice and thus showed anti-cancer effect; (2) melatonin reduced Bcl-2 expression, but increased the expression of Bax, p53 and p21 in tumor tissue. Our results suggest that melatonin could inhibit the growth of tumors in gastric cancer-bearing mice through accelerating the apoptosis of tumor cells.
ISSN:0371-0874