A New Perspective on Ameliorating Depression-Like Behaviors : Suppressing Neuroinflammation by Upregulating PGC-1α

Inflammation plays an important role in depression pathology, making it a promising target for ameliorating depression-like behaviors. The peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) is a transcriptional coactivator being able to constrain inflammatory events through NF-κB signaling. However, the role of PGC-1α in depression is not yet clear. This study was designed to investigate the role of PGC-1α in depression and explore the underlying mechanisms. Mice modeled with chronic unpredictable mild stimulation (CUMS) were explored for the relationship between depression-like behaviors and PGC-1α. Baicalin was used to evaluate the effect regulating PGC-1α. Furthermore, the anti-neuroinflammatory effect of baicalin was investigated both in BV2-SH-SY5Y co-culture system and in mice by LPS challenge. The role of PGC-1α in neuroinflammation was explored in cell co-culture systems under gene silencing conditions targeting NF-κB signaling. We found that the expression of PGC-1α was inhibited in the hippocampus of mice exposed to CUMS or LPS, while baicalin could increase the expression of PGC-1α and alleviate the depression-like behaviors. Furthermore, baicalin attenuated neuroinflammation in the hippocampus of mice and BV2-SH-SY5Y co-culture system by LPS challenge via regulating NF-κB signaling; however, knockdown of the PGC-1α could reverse the effect of baicalin on neuroinflammation and NF-κB signaling. Our results revealed a vital role for PGC-1α in attenuating neuroinflammation in depression, indicating that PGC-1α might be a therapeutic target for depression.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:39

Enthalten in:

Neurotoxicity research - 39(2021), 3 vom: 06. Juni, Seite 872-885

Sprache:

Englisch

Beteiligte Personen:

Fu, Xinxin [VerfasserIn]
Jiao, Jie [VerfasserIn]
Qin, Tingting [VerfasserIn]
Yu, Jiayu [VerfasserIn]
Fu, Qiang [VerfasserIn]
Deng, Xueyang [VerfasserIn]
Ma, Shiping [VerfasserIn]
Ma, Zhanqiang [VerfasserIn]

Links:

Volltext

Themen:

347Q89U4M5
Anti-Inflammatory Agents, Non-Steroidal
Baicalin
Depression
Flavonoids
Inflammation Mediators
Journal Article
Neuroinflammation
PGC-1α/NF-κB pathway
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha
Ppargc1a protein, mouse

Anmerkungen:

Date Completed 29.11.2021

Date Revised 21.10.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s12640-020-00292-z

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM315955384