NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression

Emerging evidence suggests that astrocyte loss is one of the most important pathological features in the hippocampus of patients with major depressive disorder (MDD) and depressive mice. Pyroptosis is a recently discovered form of programmed cell death depending on Caspase–gasdermin D (Casp-GSDMD),...

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Main Authors: Shanshan Li, Yiming Sun, Mengmeng Song, Yuting Song, Yinquan Fang, Qingyu Zhang, Xueting Li, Nanshan Song, Jianhua Ding, Ming Lu, Gang Hu
Format: Article
Language:English
Published: American Society for Clinical investigation 2021-12-01
Series:JCI Insight
Subjects:
Online Access:https://doi.org/10.1172/jci.insight.146852
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author Shanshan Li
Yiming Sun
Mengmeng Song
Yuting Song
Yinquan Fang
Qingyu Zhang
Xueting Li
Nanshan Song
Jianhua Ding
Ming Lu
Gang Hu
author_facet Shanshan Li
Yiming Sun
Mengmeng Song
Yuting Song
Yinquan Fang
Qingyu Zhang
Xueting Li
Nanshan Song
Jianhua Ding
Ming Lu
Gang Hu
author_sort Shanshan Li
collection DOAJ
description Emerging evidence suggests that astrocyte loss is one of the most important pathological features in the hippocampus of patients with major depressive disorder (MDD) and depressive mice. Pyroptosis is a recently discovered form of programmed cell death depending on Caspase–gasdermin D (Casp-GSDMD), which is involved in multiple neuropsychiatric diseases. However, the involvement of pyroptosis in the onset of MDD and glial pathological injury remains obscure. Here, we observed that depressive mice showed astrocytic pyroptosis, which was responsible for astrocyte loss, and selective serotonin reuptake inhibitor (SSRI) treatment could attenuate the pyroptosis induced by the chronic mild stress (CMS) model. Genetic KO of GSDMD, Casp-1, and astrocytic NOD-like receptor protein 3 (NLRP3) inflammasome in mice alleviated depression-like behaviors and inhibited the pyroptosis-associated protein expression. In contrast, overexpression of astrocytic GSDMD–N-terminal domain (GSDMD-N) in the hippocampus could abolish the improvement of behavioral alterations in GSDMD-deficient mice. This work illustrates that targeting the NLRP3/Casp-1/GSDMD–mediated pyroptosis may provide potential therapeutic benefits to stress-related astrocyte loss in the pathogenesis of depression.
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spelling doaj.art-35cc40e68d204e86848698bd662b95e72022-12-22T00:31:10ZengAmerican Society for Clinical investigationJCI Insight2379-37082021-12-01623NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depressionShanshan LiYiming SunMengmeng SongYuting SongYinquan FangQingyu ZhangXueting LiNanshan SongJianhua DingMing LuGang HuEmerging evidence suggests that astrocyte loss is one of the most important pathological features in the hippocampus of patients with major depressive disorder (MDD) and depressive mice. Pyroptosis is a recently discovered form of programmed cell death depending on Caspase–gasdermin D (Casp-GSDMD), which is involved in multiple neuropsychiatric diseases. However, the involvement of pyroptosis in the onset of MDD and glial pathological injury remains obscure. Here, we observed that depressive mice showed astrocytic pyroptosis, which was responsible for astrocyte loss, and selective serotonin reuptake inhibitor (SSRI) treatment could attenuate the pyroptosis induced by the chronic mild stress (CMS) model. Genetic KO of GSDMD, Casp-1, and astrocytic NOD-like receptor protein 3 (NLRP3) inflammasome in mice alleviated depression-like behaviors and inhibited the pyroptosis-associated protein expression. In contrast, overexpression of astrocytic GSDMD–N-terminal domain (GSDMD-N) in the hippocampus could abolish the improvement of behavioral alterations in GSDMD-deficient mice. This work illustrates that targeting the NLRP3/Casp-1/GSDMD–mediated pyroptosis may provide potential therapeutic benefits to stress-related astrocyte loss in the pathogenesis of depression.https://doi.org/10.1172/jci.insight.146852Inflammation
spellingShingle Shanshan Li
Yiming Sun
Mengmeng Song
Yuting Song
Yinquan Fang
Qingyu Zhang
Xueting Li
Nanshan Song
Jianhua Ding
Ming Lu
Gang Hu
NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
JCI Insight
Inflammation
title NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
title_full NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
title_fullStr NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
title_full_unstemmed NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
title_short NLRP3/caspase-1/GSDMD–mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
title_sort nlrp3 caspase 1 gsdmd mediated pyroptosis exerts a crucial role in astrocyte pathological injury in mouse model of depression
topic Inflammation
url https://doi.org/10.1172/jci.insight.146852
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