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Review
. 2020 May;34(5):911-923.
doi: 10.1002/ptr.6577. Epub 2019 Dec 12.

Therapeutic effects of kaempferol affecting autophagy and endoplasmic reticulum stress

Milad Ashrafizadeh  1 , Shima Tavakol  2 , Zahra Ahmadi  3 , Sahar Roomiani  3 , Reza Mohammadinejad  4 , Saeed Samarghandian  5
Affiliations
Review

Therapeutic effects of kaempferol affecting autophagy and endoplasmic reticulum stress

Milad Ashrafizadeh et al. Phytother Res. 2020 May.

Abstract

Regulated cell death (RCD) guarantees to preserve organismal homeostasis. Apoptosis and autophagy are two major arms of RCD, while endoplasmic reticulum (ER) as a crucial organelle involved in proteostasis, promotes cells toward autophagy and apoptosis. Alteration in ER stress and autophagy machinery is responsible for a great number of diseases. Therefore, _targeting those pathways appears to be beneficial in the treatment of relevant diseases. Meantime, among the traditional herb medicine, kaempferol as a flavonoid seems to be promising to modulate ER stress and autophagy and exhibits protective effects on malfunctioning cells. There are some reports indicating the capability of kaempferol in affecting autophagy and ER stress. In brief, kaempferol modulates autophagy in noncancerous cells to protect cells against malfunction, while it induces cell mortality derived from autophagy through the elevation of p-AMP-activated protein kinase, light chain-3-II, autophagy-related geness, and Beclin-1 in cancer cells. Noteworthy, kaempferol enhances cell survival through C/EBP homologous protein (CHOP) suppression and GRP78 increment in noncancerous cells, while it enhances cell mortality through the induction of unfolding protein response and CHOP increment in cancer cells. In this review, we discuss how kaempferol modulates autophagy and ER stress in noncancer and cancer cells to expand our knowledge of new pharmacological compounds for the treatment of associated diseases.

Keywords: apoptosis; autophagy; cell death; endoplasmic reticulum stress; flavonoid; kaempferol.

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