PMID- 31647899 OWN - NLM STAT- MEDLINE DCOM- 20210329 LR - 20210329 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1726 DP - 2020 Jan 1 TI - Chloroquine pretreatment attenuates ischemia-reperfusion injury in the brain of ob/ob diabetic mice as well as wildtype mice. PG - 146518 LID - S0006-8993(19)30572-4 [pii] LID - 10.1016/j.brainres.2019.146518 [doi] AB - Chloroquine, a prototype anti-malaria drug, has been reported to possess anti-inflammatory effects. Moreover, chloroquine pretreatment could improve DNA damage repair. It is therefore reasonable to hypothesize that chloroquine pretreatment could attenuate ischemia/reperfusion injury in the brain. Considering the fact that chloroquine could also improve glucose metabolism, we speculated that the potential effects of chloroquine on ischemia/reperfusion injury might be particularly pronounced in diabetic mice. In this study, chloroquine pretreatment protected neurons from Oxygen Glucose Deprivation (OGD) induced cytotoxicity and apoptosis. In vivo, Ob/ob mice and wildtype (WT) mice were pretreated with chloroquine for 3 weeks. Then, ischemic stroke was induced by 60 min Middle Cerebral Artery Occlusion (MCAO). We found that chloroquine pretreatment normalized blood glucose in diabetic ob/ob mice, and reduced cerebral damage after ischemic stroke especially for diabetic mice. In addition, chloroquine pretreatment reduced High-mobility group box 1 (HMGB1) content in the cerebrospinal fluid (CSF) and serum and lowered myeloperoxidase (MPO) activity and inflammatory cytokines gene expression both in the ob/ob diabetic mice and WT mice. Moreover, harmful DNA damage-signaling responses, including PARP activation and p53 activation, were also attenuated by chloroquine pretreatment in these two kinds of mice. In conclusion, chloroquine pretreatment could reduce cerebral damage after ischemic stroke especially in diabetic mice through multiple mechanisms, which include reducing neural cell DNA injury, restoring euglycemia and anti-inflammatory effects. The findings may provide potential for the development of chloroquine in the prevention and treatment of stroke in diabetic high-risk patients. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Zhang, Ying-Pei AU - Zhang YP AD - Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan 430071, China. FAU - Cui, Qiu-Yan AU - Cui QY AD - Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan 4030030, China; The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, China. FAU - Zhang, Tong-Mei AU - Zhang TM AD - Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan 4030030, China; The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, China. FAU - Yi, Yao AU - Yi Y AD - Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan 4030030, China; The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, China. FAU - Nie, Jun-Jie AU - Nie JJ AD - Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan 430071, China. FAU - Xie, Guang-Hui AU - Xie GH AD - Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China. FAU - Wu, Jian-Hua AU - Wu JH AD - Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan 430071, China. Electronic address: jhwu@whu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191021 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Blood Glucose) RN - 0 (HMGB1 Protein) RN - 0 (HMGB1 protein, mouse) RN - 0 (Neuroprotective Agents) RN - 886U3H6UFF (Chloroquine) SB - IM MH - Animals MH - Blood Glucose/drug effects MH - Brain/*drug effects/pathology/physiopathology MH - Brain Ischemia/*physiopathology/prevention & control MH - Cell Survival/drug effects MH - Chloroquine/*administration & dosage MH - Diabetes Mellitus/*physiopathology MH - Disease Models, Animal MH - HMGB1 Protein/cerebrospinal fluid MH - Mice, Inbred C57BL MH - Neurons/drug effects/pathology/physiology MH - Neuroprotective Agents/*administration & dosage MH - Primary Cell Culture MH - Reperfusion Injury/*physiopathology/prevention & control OTO - NOTNLM OT - Chloroquine OT - Diabetes OT - Stroke EDAT- 2019/10/28 06:00 MHDA- 2021/03/30 06:00 CRDT- 2019/10/25 06:00 PHST- 2019/06/25 00:00 [received] PHST- 2019/09/15 00:00 [revised] PHST- 2019/10/19 00:00 [accepted] PHST- 2019/10/28 06:00 [pubmed] PHST- 2021/03/30 06:00 [medline] PHST- 2019/10/25 06:00 [entrez] AID - S0006-8993(19)30572-4 [pii] AID - 10.1016/j.brainres.2019.146518 [doi] PST - ppublish SO - Brain Res. 2020 Jan 1;1726:146518. doi: 10.1016/j.brainres.2019.146518. Epub 2019 Oct 21.