PMID- 36590506 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230111 IS - 2405-8440 (Print) IS - 2405-8440 (Electronic) IS - 2405-8440 (Linking) VI - 8 IP - 12 DP - 2022 Dec TI - LOX-1 attenuates high glucose-induced autophagy via AMPK/HNF4alpha signaling in HLSECs. PG - e12385 LID - 10.1016/j.heliyon.2022.e12385 [doi] LID - e12385 AB - Type 2 diabetes mellitus (T2DM) combined with nonalcoholic fatty liver disease (NAFLD) is a common cause of death. Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) is involved in the regulation of autophagy and associated with a variety of diseases, such as atherosclerosis, diabetes, and NAFLD. This study aimed to investigate the effect of LOX-1 on autophagy induced by high glucose levels in human liver sinusoidal endothelial cells (HLSECs) and whether it regulates autophagy through the adenosine monophosphate-activated protein kinase/hepatocyte nuclear factor 4alpha (AMPK/HNF4alpha) pathway. In this study, HLSECs cultured with high glucose medium showed increased expression of LOX-1, whereas autophagy was inhibited. High glucose levels decreased the AMPK phosphorylation, increased the HNF4alpha phosphorylation, and retained the HNF4alpha in the cytoplasm. By contrast, silencing of LOX-1 reversed the phenomenon induced by high glucose levels and restored the HNF4a localization. Taken together, our findings reveal a novel mechanism of high glucose-induced autophagy in HLSECs, namely, the LOX-1-mediated AMPK/HNF4alpha signaling pathway. Therefore, LOX-1 is an important target molecule for the regulation of autophagy in HLSECs. CI - (c) 2022 The Author(s). FAU - Duan, Qidang AU - Duan Q AD - The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China. FAU - Si, Huiling AU - Si H AD - The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China. FAU - Tian, Limin AU - Tian L AD - Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, 730000, China. FAU - Zhang, Na AU - Zhang N AD - The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China. FAU - Qiu, Jumei AU - Qiu J AD - The First Clinical Medical College of Gansu University of Chinese Medicine (Gansu Provincial Hospital), Lanzhou, 730000, China. FAU - Yu, Jing AU - Yu J AD - Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, 730000, China. FAU - Liu, Jing AU - Liu J AD - Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, 730000, China. FAU - Zhang, Qi AU - Zhang Q AD - Department of Gerontology, Gansu Provincial Hospital, Lanzhou, 730000, China. LA - eng PT - Journal Article DEP - 20221217 PL - England TA - Heliyon JT - Heliyon JID - 101672560 PMC - PMC9800541 OTO - NOTNLM OT - AMPK OT - Autophagy OT - HLSECs OT - HNF4alpha OT - LOX-1 COIS- The authors declare no competing interests. EDAT- 2023/01/03 06:00 MHDA- 2023/01/03 06:01 PMCR- 2022/12/17 CRDT- 2023/01/02 04:28 PHST- 2022/10/07 00:00 [received] PHST- 2022/11/10 00:00 [revised] PHST- 2022/12/08 00:00 [accepted] PHST- 2023/01/02 04:28 [entrez] PHST- 2023/01/03 06:00 [pubmed] PHST- 2023/01/03 06:01 [medline] PHST- 2022/12/17 00:00 [pmc-release] AID - S2405-8440(22)03673-8 [pii] AID - e12385 [pii] AID - 10.1016/j.heliyon.2022.e12385 [doi] PST - epublish SO - Heliyon. 2022 Dec 17;8(12):e12385. doi: 10.1016/j.heliyon.2022.e12385. eCollection 2022 Dec.