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Paper Information

Journal:   INTERNATIONAL JOURNAL OF HEALTH STUDIES   2016 , Volume 2 , Number 2; Page(s) 27 To 30.
 
Paper: 

The Effect of Metformin on the Expression of Caspase 3, 8, 9 and PARP-1 in Human Breast Cancer Cell Line T47D

 
 
Author(s):  Aghagolzadeh Haji Hemat, Sheibak Hamed, KHOSRAVI MOHSEN, ASADI JAHANBAKHSH*
 
* Metabolic Disorders Research Center, Dept. of Biochemistry and Biophysics, School of Medicine, Golestan University of Medical Science, Gorgan, Iran
 
Abstract: 
Background: Metformin is used to lower blood sugar in patients with type II diabetes. Recent research showed that metformin has effects on cancer cell growth. Studies show that metformin can induce apoptosis in certain cancer cell lines. In this study, we examined the effect of metformin on apoptosis in the T47D breast cancer cell line. Methods: The T47D breast cancer cell line was selected and purchased from the Pasteur Institute (Tehran, Iran). Cells were treated with doses of 5, 10, and 50 μ M of metformin at 24, 48, and 72 hours. The transcription levels of genes involved in apoptosis, including caspase-3,-8,-9, and PARP-1, were evaluated by real-time PCR. Results: The results of this study showed that at all three doses (5, 10, and 50 μ M) of metformin and at three times (24, 48, and 72 h), the expression of caspase-8 and caspase-9 were increased. Also, at all doses metformin increased the expression of PARP-1 at 48 and 72 hours, but at 24 hours the expression of PARP-1 was not affected. Conclusions: These results indicate that metformin does not affect expression of caspase-3 at any dose or time point. This study showed that metformin, by increasing the transcription of caspase-8 and caspase-9, causes cell death through apoptosis.
 
Keyword(s): Breast cancer,Metformin,Apoptosis
 
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