PMID- 32278045 OWN - NLM STAT- MEDLINE DCOM- 20210422 LR - 20211204 IS - 1096-1186 (Electronic) IS - 1043-6618 (Linking) VI - 156 DP - 2020 Jun TI - The anticancer effects of curcumin via targeting the mammalian target of rapamycin complex 1 (mTORC1) signaling pathway. PG - 104798 LID - S1043-6618(20)31106-3 [pii] LID - 10.1016/j.phrs.2020.104798 [doi] AB - The mammalian target of rapamycin (mTOR) is a protein kinase that has been considered as a key regulator of a large number of cellular processes, including cell growth, proliferation, differentiation, survival, and motility. Overactivation of mTOR (especially mTORC1) signaling is related to oncogenic cellular processes. Therefore targeting mTORC1 signaling is a new promising strategy in cancer therapy. In this regard, various studies have shown that curcumin, a polyphenol produced from the turmeric rhizome, has anti-inflammatory, antioxidant and anticancer properties. Curcumin may exert its anticancer function, at least in part, by suppressing mTOR-mediated signaling pathway in tumor cells. However, the exact underlying mechanisms by which curcumin blocks the mTORC1 signaling remain unclear. According to literature, curcumin inhibits insulin-like growth factor 1 (IGF-1)/phosphoinositide 3-kinase (PI3K)/Akt/mTORC1 pathway which leads to apoptosis and cell cycle arrest via suppression of erythroblastosis virus transcription factor 2 and murine double minute 2 oncoprotein. In addition, activation of unc-51-like kinase 1 by curcumin, as a downstream target of IGF-1/PI3K/Akt/mTORC1 axis, enhances autophagy. Curcumin induces AMP-activated protein kinase, a negative regulator of mTORC1, via inhibition of F0F1-ATPase. Interestingly, curcumin suppresses IkappaB kinase beta, the upstream kinase in mTORC1 pathway. Moreover, evidence revealed that curcumin downregulates the E3-ubiquitin ligases NEDD4, neural precursor cell-expressed developmentally downregulated 4. NEDD4 is frequently overexpressed in a wide range of cancers and degrades the phosphatase and tensin homolog, which is a negative regulator of mTORC1. Finally another suggested mechanism is suppression of MAOA/mTORC1/hypoxia-inducible factor 1alpha signaling pathway by curcumin. CI - Copyright (c) 2020. Published by Elsevier Ltd. FAU - Tamaddoni, Ahmad AU - Tamaddoni A AD - Non-Communicable Pediatric Diseases Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran. FAU - Mohammadi, Elahe AU - Mohammadi E AD - Department of Nutrition, Khalkhal University of Medical Sciences, Khalkhal, Iran. Electronic address: a.mohammadi@khalums.ac.ir. FAU - Sedaghat, Fatemeh AU - Sedaghat F AD - Department of Basic Medical Sciences, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran. FAU - Qujeq, Durdi AU - Qujeq D AD - Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran. FAU - As'Habi, Atefeh AU - As'Habi A AD - Food Safety Research Center (Salt), Semnan University of Medical Sciences, Semnan, Iran; Department of Nutrition, School of Nutrition and Food Sciences, Semnan University of Medical Sciences, Semnan, Iran. LA - eng PT - Journal Article PT - Review DEP - 20200408 PL - Netherlands TA - Pharmacol Res JT - Pharmacological research JID - 8907422 RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (Protein Kinase Inhibitors) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - IT942ZTH98 (Curcumin) SB - IM MH - Animals MH - Antineoplastic Agents, Phytogenic/*therapeutic use MH - Cell Proliferation/*drug effects MH - Curcumin/*therapeutic use MH - Humans MH - Mechanistic Target of Rapamycin Complex 1/*antagonists & inhibitors/metabolism MH - Neoplasms/*drug therapy/enzymology/pathology MH - Protein Kinase Inhibitors/*therapeutic use MH - Signal Transduction MH - TOR Serine-Threonine Kinases/*antagonists & inhibitors/metabolism OTO - NOTNLM OT - Cancer OT - Curcumin OT - mTOR COIS- Declaration of Competing Interest The authors declare no conflicts of interest. EDAT- 2020/04/12 06:00 MHDA- 2021/04/23 06:00 CRDT- 2020/04/12 06:00 PHST- 2019/12/22 00:00 [received] PHST- 2020/03/26 00:00 [revised] PHST- 2020/03/29 00:00 [accepted] PHST- 2020/04/12 06:00 [pubmed] PHST- 2021/04/23 06:00 [medline] PHST- 2020/04/12 06:00 [entrez] AID - S1043-6618(20)31106-3 [pii] AID - 10.1016/j.phrs.2020.104798 [doi] PST - ppublish SO - Pharmacol Res. 2020 Jun;156:104798. doi: 10.1016/j.phrs.2020.104798. Epub 2020 Apr 8.