PMID- 35316547 OWN - NLM STAT- MEDLINE DCOM- 20220422 LR - 20220612 IS - 1097-4547 (Electronic) IS - 0360-4012 (Linking) VI - 100 IP - 6 DP - 2022 Jun TI - Interleukin-18 mediated inflammatory brain injury after intracerebral hemorrhage in male mice. PG - 1359-1369 LID - 10.1002/jnr.25044 [doi] AB - Interleukin-18 (IL-18), a pro-inflammatory cytokine, is thought to be associated with inflammation in many neurological diseases such as ischemic stroke and poststroke depression, but the role of IL-18 in inflammatory injury after intracerebral hemorrhage (ICH) remains unclear. In this study, we established the ICH model in male mice and found that IL-18 expression including protein and mRNA levels was significantly increased in brain tissues after ICH. Meanwhile, exogenous IL-18 exacerbated cerebral hematoma and neurological deficits following ICH. In the IL-18 knockout group, the size of hematoma and neurological functions after ICH was decreased compared with the wild-type group, suggesting the critical role of IL-18 on the modulation of brain injury after ICH. Importantly, exogenous IL-18 increased microglial activation in brain tissues after ICH. Furthermore, IL-18 knockout resulted in the reduction of activated microglia after ICH. These results indicated that IL-18 may regulate the inflammatory response after ICH through the activation of microglia. Thus, IL-18 is expected to be a promising therapeutic target for secondary brain injury after ICH. CI - (c) 2022 Wiley Periodicals LLC. FAU - Li, Hao AU - Li H AD - Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China. FAU - Tian, Jingluan AU - Tian J AD - Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China. FAU - Yin, Yin AU - Yin Y AD - Laboratory Animal Center, Soochow University, Suzhou, China. FAU - Diao, Shanshan AU - Diao S AD - Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China. FAU - Zhang, Ximeng AU - Zhang X AD - Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China. FAU - Zuo, Tao AU - Zuo T AD - Department of Orthopedics, Xuzhou Medical University Affiliated Hospital, Xuzhou City, China. FAU - Miao, Zhigang AU - Miao Z AD - Institute of Neuroscience, Soochow University, Suzhou City, China. FAU - Yang, Yi AU - Yang Y AUID- ORCID: 0000-0001-7896-9485 AD - Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220322 PL - United States TA - J Neurosci Res JT - Journal of neuroscience research JID - 7600111 RN - 0 (Interleukin-18) SB - IM MH - Animals MH - *Brain Injuries/complications/metabolism MH - Cerebral Hemorrhage/drug therapy MH - Hematoma/complications/metabolism MH - *Interleukin-18 MH - Male MH - Mice MH - Microglia/metabolism OTO - NOTNLM OT - RRID:AB-2099233 OT - RRID:AB-2715541 OT - RRID:AB-2895063 OT - RRID:AB-2895090 OT - RRID:AB-330924 OT - RRID:AB_2535792 OT - RRID:AB_839504 OT - RRID:IMSR-NM-KO-190469 OT - RRID:MGI:5657312 OT - RRID:SCR_000306 OT - RRID:SCR_001964 OT - RRID:SCR_003070 OT - behavior OT - brain injury OT - interleukin-18 OT - intracerebral hemorrhage OT - microglia EDAT- 2022/03/23 06:00 MHDA- 2022/04/23 06:00 CRDT- 2022/03/22 17:19 PHST- 2022/02/28 00:00 [revised] PHST- 2021/06/25 00:00 [received] PHST- 2022/03/04 00:00 [accepted] PHST- 2022/03/23 06:00 [pubmed] PHST- 2022/04/23 06:00 [medline] PHST- 2022/03/22 17:19 [entrez] AID - 10.1002/jnr.25044 [doi] PST - ppublish SO - J Neurosci Res. 2022 Jun;100(6):1359-1369. doi: 10.1002/jnr.25044. Epub 2022 Mar 22.