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Abstract Title:

PTEN over-expression by resveratrol in acute lymphoblastic leukemia cells along with suppression of AKT/PKB and ERK1/2 in genotoxic stress.

Abstract Source:

J Nat Med. 2015 May 1. Epub 2015 May 1. PMID: 25929783

Abstract Author(s):

Arman Ghorbani, Hamid Zand, Mahmood Jeddi-Tehrani, Fariba Koohdani, Farzad Shidfar, Seyed Ali Keshavarz

Article Affiliation:

Arman Ghorbani

Abstract:

The bioactive components of dietary phytochemicals are in the spotlight of research institutes, due to their significant antioxidant activities and health-promoting properties. Resveratrol is a polyphenol which is found abundantly in grapes and berries and has long been known as a chemo-preventive agent. The main purpose of this study was to provide a new mechanistic insight into the growth inhibition of acute lymphoblastic leukemia cells by resveratrol along with a DNA damage agent. It was found that the treatment of pre-B ALL cells by resveratrol in the presence or absence of doxorubicin resulted in decreased cell viability and a synergistic increase in cytotoxicity. Cell death was accompanied by a significant increase in phosphorylated p53 at serine 15 and accumulation of PTEN. In addition, resveratrol inhibited the over-expression of p-AKT and p-ERK1/2. These findings clearly demonstrated that resveratrol and doxorubicin synergistically increase the cytotoxicity of pre-B ALL cells via the hyper-activation of two important tumor suppressor proteins and two major signal transduction pathways.

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Sayer Ji
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