Modulation of Autophagy in Cancer Cells by Dietary Polyphenols

Antioxidants - Tập 10 Số 1 - Trang 123
Claudia Musiał1, Kamila Siedlecka-Kroplewska2, Zbigniew Kmieć2, Magdalena Górska‐Ponikowska1
1Department of Medical Chemistry, Medical University of Gdansk, 80-211 Gdansk, Poland
2Department of Histology, Medical University of Gdansk, 80-211 Gdansk, Poland

Tóm tắt

The role of autophagy is to degrade damaged or unnecessary cellular structures. Both in vivo and in vitro studies suggest a dual role of autophagy in cancer—it may promote the development of neoplasms, but it may also play a tumor protective function. The mechanism of autophagy depends on the genetic context, tumor stage and type, tumor microenvironment, or clinical therapy used. Autophagy also plays an important role in cell death as well as in the induction of chemoresistance of cancer cells. The following review describes the extensive autophagic cell death in relation to dietary polyphenols and cancer disease. The review documents increasing use of polyphenolic compounds in cancer prevention, or as agents supporting oncological treatment. Polyphenols are organic chemicals that exhibit antioxidant, anti-inflammatory, anti-angiogenic, and immunomodulating properties, and can also initiate the process of apoptosis. In addition, polyphenols reduce oxidative stress and protect against reactive oxygen species. This review presents in vitro and in vivo studies in animal models with the use of polyphenolic compounds such as epigallocatechin-3-gallate (EGCG), oleuropein, punicalgin, apigenin, resveratrol, pterostilbene, or curcumin and their importance in the modulation of autophagy-induced death of cancer cells.

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