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Abstract Title:

Apigenin attenuates streptozotocin-induced pancreaticβ cell damage by its protective effects on cellular antioxidant defense.

Abstract Source:

In Vitro Cell Dev Biol Anim. 2017 Feb 8. Epub 2017 Feb 8. PMID: 28181104

Abstract Author(s):

Ning Wang, Wen Jing Yi, Lu Tan, Jia Hui Zhang, Jiamin Xu, Yi Chen, Mengting Qin, Shuang Yu, Jing Guan, Rui Zhang

Article Affiliation:

Ning Wang

Abstract:

Pancreatic beta cells are very sensitive to oxidative stress, which is one of the major causes of cell damages in diabetes. Growing interest has focused on the development of effective therapeutics to protect pancreatic cells from oxidative stress and searching for potentially protective antioxidants for treating diabetes. Apigenin, a plant-derived flavonoid, was investigated to determine whether it could protect rat insulinoma cell lines (RINm5F pancreatic beta cells) against streptozotocin (STZ)-induced oxidative damages and the mechanisms implicated. Our results showed that STZ treatment could induce oxidative stress and consequent cytotoxic effects in RINm5F cells. Pretreatment with apigenin effectively decreased the intracellular reactive oxygen species (ROS) production, attenuated cellular DNA damage, diminished lipid peroxidation, relieved protein carbonylation, and restored the cell apoptosis of pancreatic beta cells stressed by STZ. Our further experiments demonstrated that the beneficial effects of apigenin were related to ameliorate the loss of antioxidant enzymes of the STZ-treated cells in the level of gene transcription, protein expression, and enzyme activity. That suggested apigenin was not only a free radical scavenger but also a regulator to antioxidant defenses of pancreatic cells. Taken all together, our findings suggested that apigenin could attenuate the STZ-induced oxidative damages in pancreatic beta cells and might serve as a novel agent for the treatment of diabetes.

Study Type : In Vitro Study

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