PMID- 30686534 OWN - NLM STAT- MEDLINE DCOM- 20191112 LR - 20191112 IS - 1090-2104 (Electronic) IS - 0006-291X (Linking) VI - 510 IP - 2 DP - 2019 Mar 5 TI - The release and activity of HMGB1 in ferroptosis. PG - 278-283 LID - S0006-291X(19)30103-2 [pii] LID - 10.1016/j.bbrc.2019.01.090 [doi] AB - Damage-associated molecular pattern molecules (DAMPs) are endogenous danger signals that alert the innate immune system and shape the inflammation response to cell death. However, the release and activity of DAMPs in ferroptosis, a recently identified form of regulated necrosis characterized by iron overload and lipid peroxidation, still remain poorly understood. Here, we demonstrate that HMGB1 is a DAMP released by ferroptotic cells in an autophagy-dependent manner. Both type I and II ferroptosis activators, including erastin, sorafenib, RSL3, and FIN56, induce HMGB1 release in cancer and noncancer cells. In contrast, genetic ablation (using ATG5(-/-) or ATG7(-/-) cells) or pharmacologic inhibition (the administration of bafilomycin A1 or chloroquine) of autophagy was found to block ferroptosis activator-induced HMGB1 release. Mechanically, autophagy-mediated HDAC inhibition promotes HMGB1 acetylation, resulting in HMGB1 release in ferroptosis. Moreover, AGER, but not TLR4, is required for HMGB1-mediated inflammation in macrophages in response to ferroptotic cells. These studies suggest that HMGB1 inhibition might have some potential therapeutic effects in ferroptosis-associated human disease. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Wen, Qirong AU - Wen Q AD - The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510510, China. FAU - Liu, Jiao AU - Liu J AD - The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510510, China. FAU - Kang, Rui AU - Kang R AD - Department of Surgery, UT Southwestern Medical Center, Dallas, TX 75390, USA. FAU - Zhou, Borong AU - Zhou B AD - The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510510, China. Electronic address: zhoubr8@aliyun.com. FAU - Tang, Daolin AU - Tang D AD - Department of Surgery, UT Southwestern Medical Center, Dallas, TX 75390, USA. Electronic address: daolin.tang@utsouthwestern.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190125 PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Carbolines) RN - 0 (FIN56 compound) RN - 0 (HMGB1 Protein) RN - 0 (HMGB1 protein, human) RN - 0 (HMGB1 protein, mouse) RN - 0 (Macrolides) RN - 0 (Oximes) RN - 0 (Piperazines) RN - 0 (RSL3 compound) RN - 0 (Sulfonamides) RN - 0 (TLR4 protein, human) RN - 0 (Toll-Like Receptor 4) RN - 0 (erastin) RN - 886U3H6UFF (Chloroquine) RN - 88899-55-2 (bafilomycin A1) RN - 9007-73-2 (Ferritins) RN - 9ZOQ3TZI87 (Sorafenib) SB - IM MH - Animals MH - *Autophagy MH - Carbolines/pharmacology MH - *Cell Death MH - Cell Line, Tumor MH - Chloroquine/pharmacology MH - Ferritins/metabolism MH - Fibroblasts/metabolism MH - HMGB1 Protein/*metabolism MH - Humans MH - Immunity, Innate MH - Inflammation MH - Iron Overload MH - Lipid Peroxidation MH - Macrolides/pharmacology MH - Mice MH - Neoplasms MH - Oximes/pharmacology MH - Piperazines/pharmacology MH - Sorafenib/pharmacology MH - Sulfonamides/pharmacology MH - Toll-Like Receptor 4/metabolism OTO - NOTNLM OT - AGER OT - Autophagy OT - DAMP OT - Ferroptosis OT - HMGB1 OT - Inflammation EDAT- 2019/01/29 06:00 MHDA- 2019/11/13 06:00 CRDT- 2019/01/29 06:00 PHST- 2019/01/08 00:00 [received] PHST- 2019/01/18 00:00 [accepted] PHST- 2019/01/29 06:00 [pubmed] PHST- 2019/11/13 06:00 [medline] PHST- 2019/01/29 06:00 [entrez] AID - S0006-291X(19)30103-2 [pii] AID - 10.1016/j.bbrc.2019.01.090 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2019 Mar 5;510(2):278-283. doi: 10.1016/j.bbrc.2019.01.090. Epub 2019 Jan 25.