Combination of metformin and phenformin synergistically inhibits proliferation and hTERT expression in human breast cancer cells

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Jafari Gharabaghlou Davoud; Pilehvar Soltanahmadi Younes; DADASHPOUR MEHDI; MOTA ALI; Vafajouy Jamshidi Soheila; Faramarzi Leila; Rasouli sara; ZARGHAMI NOSRATOLLAH

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Journal: Iranian Journal of Basic Medical Sciences Year:2018 | Volume:21 | Issue:11 Page(s): 1167-1173

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Title

Combination of metformin and phenformin synergistically inhibits proliferation and hTERT expression in human breast cancer cells

Author(s)

Keywords

Breast cancer

Combination therapy

Metformin

Phenformin

Synergistic effects

Abstract

Objective(s): Breast cancer remains a global challenge, and further chemopreventive therapies are still immediately required. Emerging evidence has revealed the potent anti-cancer effects of biguanides, Metformin (MET) and Phenformin (PHE). Thus, to explore an efficient chemopreventive strategy for Breast cancer, the antiproliferative effects of the combination of MET and PHE against Breast cancer cells were assessed. Materials and Methods: Cytotoxicity of the drugs individually and in combination against T47D and MDAMB-231 Breast cancer cells were assessed using MTT assay and the median-effect method was used to analyze the precise nature of the interaction between MET and PHE. Besides, the expression levels of hTERT after 48 hr drug exposure were determined using qRT-PCR. Results: Based on the cytotoxicity assay, both MET and PHE further inhibited the growth of MDAMB-231 cells compared with T47D cells. It was found that MET+PHE reduced the IC50s of MET and PHE in both cells drastically more than the single treatments in a synergistic manner. Importantly, MET+PHE showed higher antiproliferative effect with smaller IC50 values against MDA-MB-231 cells than against T47D cells. Real-time PCR results revealed that hTERT expression was significantly reduced in both Breast cancer cell lines treated with MET+PHE than the single treatments. In comparison between two types of Breast cancer cells, it was detected that MET+PHE could further decline hTERT expression in MDAMB-231cells than in T47D cells (P<0. 001). Conclusion: It is speculated that the combination of MET and PHE may be a promising and convenient approach to improve the efficiency of Breast cancer treatment. speculated that the combination of MET and PHE may be a promising and convenient approach to improve the efficiency of Breast cancer treatment.

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APA: Copy

Jafari Gharabaghlou, Davoud, Pilehvar Soltanahmadi, Younes, DADASHPOUR, MEHDI, MOTA, ALI, Vafajouy Jamshidi, Soheila, Faramarzi, Leila, Rasouli, sara, & ZARGHAMI, NOSRATOLLAH. (2018). Combination of metformin and phenformin synergistically inhibits proliferation and hTERT expression in human breast cancer cells. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 21(11), 1167-1173. SID. https://sid.ir/paper/721565/en

Vancouver: Copy

Jafari Gharabaghlou Davoud, Pilehvar Soltanahmadi Younes, DADASHPOUR MEHDI, MOTA ALI, Vafajouy Jamshidi Soheila, Faramarzi Leila, Rasouli sara, ZARGHAMI NOSRATOLLAH. Combination of metformin and phenformin synergistically inhibits proliferation and hTERT expression in human breast cancer cells. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2018;21(11):1167-1173. Available from: https://sid.ir/paper/721565/en

IEEE: Copy

Davoud Jafari Gharabaghlou, Younes Pilehvar Soltanahmadi, MEHDI DADASHPOUR, ALI MOTA, Soheila Vafajouy Jamshidi, Leila Faramarzi, sara Rasouli, and NOSRATOLLAH ZARGHAMI, “Combination of metformin and phenformin synergistically inhibits proliferation and hTERT expression in human breast cancer cells,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 21, no. 11, pp. 1167–1173, 2018, [Online]. Available: https://sid.ir/paper/721565/en

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