PMID- 38478195 OWN - NLM STAT- MEDLINE DCOM- 20240315 LR - 20240328 IS - 1559-1166 (Electronic) IS - 0895-8696 (Linking) VI - 74 IP - 1 DP - 2024 Mar 13 TI - Effects of the Glucocorticoid-Mediated Mitochondrial Translocation of Glucocorticoid Receptors on Oxidative Stress and Pyroptosis in BV-2 Microglia. PG - 30 LID - 10.1007/s12031-024-02192-9 [doi] AB - Microglia are resident macrophages within the central nervous system, serving as the first responders to neuroinflammation. Glucocorticoids (GCs) may cause damage to brain tissue, but the specific mechanism remains unclear. This study was divided into two parts: a glucocorticoid receptor (GR) mitochondrial translocation intervention experiment and a mitochondrial oxidative stress inhibition experiment. BV-2 microglia were stimulated with dexamethasone (DEX) and treated with either tubastatin-A or mitoquinone (MitoQ) for 24 h. Our results showed that DEX increased the translocation of GRs to mitochondria, and this effect was accompanied by decreases in the expression of mitochondrially encoded cytochrome c oxidase 1 (MT-CO1) and mitochondrially encoded cytochrome c oxidase 3 (MT-CO3) and increases in the expression of NOD-like receptor thermal protein domain-associated protein 3 (NLRP3), caspase-1, and Gasdermin D (GSDMD). The level of mitochondrial respiratory chain complex IV (MRCC IV) and adenosine triphosphate (ATP) was decreased. An elevation in the level of mitochondrial oxidative stress and the opening of the mitochondrial permeability transition pore (mPTP) was also observed. Mechanistically, tubastatin-A significantly suppressed the mitochondrial translocation of GRs, improved the expression of mitochondrial genes, promoted the restoration of mitochondrial function, and inhibited pyroptosis. MitoQ significantly prevented mitochondrial oxidative stress, improved mitochondrial function, and reduced apoptosis and pyroptosis. Both tubastatin-A and MitoQ suppressed DEX-induced pyroptosis. This study substantiates that the increase in the mitochondrial translocation of GRs mediated by GCs exacerbates oxidative stress and pyroptosis in microglia, which indicates that the regulation of mitochondrial pathways by GCs is pathogenic to microglia. CI - (c) 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Dang, Ruonan AU - Dang R AUID- ORCID: 0000-0002-6168-7315 AD - Department of Chinese Medicine, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. FAU - Hou, Xuyang AU - Hou X AD - Department of Chinese Medicine, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. AD - Institute of Integration of Traditional and Western Medicine, Guangzhou Medical University, Guangzhou, 510182, China. FAU - Huang, Xinglan AU - Huang X AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, Guangzhou Twelfth People's Hospital, Guangzhou, 510620, China. FAU - Huang, Caifeng AU - Huang C AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. FAU - Zhao, Xiaoqing AU - Zhao X AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Endocrinology, The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510130, China. FAU - Wang, Xingrong AU - Wang X AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. FAU - Zhang, Ning AU - Zhang N AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. FAU - Yang, Yuqi AU - Yang Y AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Endocrinology, The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510130, China. FAU - Li, Nan AU - Li N AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, Haizhu Maternal and Child Health Hospital, Guangzhou, 510240, China. FAU - Liu, Sheng AU - Liu S AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. FAU - Yan, Peng AU - Yan P AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Critical Care Medicine, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, 510180, China. FAU - Fan, Ping AU - Fan P AD - Department of Chinese Medicine, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. AD - Institute of Integration of Traditional and Western Medicine, Guangzhou Medical University, Guangzhou, 510182, China. FAU - Song, Xinghua AU - Song X AD - Department of Chinese Medicine, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. AD - Institute of Integration of Traditional and Western Medicine, Guangzhou Medical University, Guangzhou, 510182, China. FAU - Zhang, Suiying AU - Zhang S AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, SSL Central Hospital, Southern Medical University, Dongguan, 523888, China. FAU - Deng, Yuqiong AU - Deng Y AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. AD - Department of Dermatology, Panyu Maternal and Child Care Service Centre of Guangzhou, Guangzhou, 511400, China. FAU - Cheng, Xiping AU - Cheng X AUID- ORCID: 0000-0001-8248-3429 AD - State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, 510182, China. cxplunwenyx@163.com. AD - Department of Dermatology, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. cxplunwenyx@163.com. FAU - Xia, Xinhua AU - Xia X AD - Department of Chinese Medicine, School of First Clinical Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China. star1124@163.com. AD - Institute of Integration of Traditional and Western Medicine, Guangzhou Medical University, Guangzhou, 510182, China. star1124@163.com. LA - eng GR - 3208203801/Guangzhou City's Construction Project for Tier-Three Famous Traditional Chinese Medicine Clinics/ GR - ZNSA-2020013/Zhongnanshan Medical Foundation of Guangdong Province/ GR - 81673983, 82074172/National Natural Science Foundation of China/ GR - 02820005/Natural Science Foundation of Guangdong Province/ PT - Journal Article DEP - 20240313 PL - United States TA - J Mol Neurosci JT - Journal of molecular neuroscience : MN JID - 9002991 RN - 0 (Glucocorticoids) RN - 0 (Receptors, Glucocorticoid) RN - EC 1.9.3.1 (Electron Transport Complex IV) RN - 0 (NLR Family, Pyrin Domain-Containing 3 Protein) SB - IM MH - *Glucocorticoids/pharmacology/metabolism MH - *Pyroptosis MH - Receptors, Glucocorticoid/genetics/metabolism MH - Microglia/metabolism MH - Electron Transport Complex IV/metabolism MH - Oxidative Stress MH - NLR Family, Pyrin Domain-Containing 3 Protein/metabolism OTO - NOTNLM OT - Glucocorticoid OT - Glucocorticoid receptor OT - Microglia OT - Mitochondria oxidative stress OT - Neurodegenerative diseases OT - Pyroptosis EDAT- 2024/03/13 18:47 MHDA- 2024/03/15 06:43 CRDT- 2024/03/13 12:21 PHST- 2023/12/13 00:00 [received] PHST- 2024/01/17 00:00 [accepted] PHST- 2024/03/15 06:43 [medline] PHST- 2024/03/13 18:47 [pubmed] PHST- 2024/03/13 12:21 [entrez] AID - 10.1007/s12031-024-02192-9 [pii] AID - 10.1007/s12031-024-02192-9 [doi] PST - epublish SO - J Mol Neurosci. 2024 Mar 13;74(1):30. doi: 10.1007/s12031-024-02192-9.