Inhibition of cGAS-STING pathway by stress granules after activation of M2 macrophages by human mesenchymal stem cells against drug induced liver injury

Copyright © 2023 Elsevier Ltd. All rights reserved..

OBJECTIVE: Cells can produce stress granules (SGs) to protect itself from damage under stress. The cGAS-STING pathway is one of the important pattern recognition pathways in the natural immune system. This study was investigated whether human mesenchymal stem cells (hMSCs) could protect the liver by inducing M2 macrophages to produce SGs during acute drug induced liver injury (DILI) induced by acetaminophen (APAP).

METHODS: After intragastric administration of APAP in vivo to induce DILI mice model, hMSCs were injected into the tail vein. The co-culture system of hMSCs and M2 macrophages was established in vitro. It was further use SGs inhibitor anisomicin to intervene M2 macrophages. The liver histopathology, liver function, reactive oxygen species (ROS) level, apoptosis pathway, endoplasmic reticulum stress (ERS) level, SGs markers (G3BP1/TIA-1), cGAS-STING pathway, TNF-α, IL-6, IL-1β mRNA levels in liver tissue and M2 macrophages were observed.

RESULTS: In vivo experiments, it showed that hMSCs could alleviate liver injury, inhibite the level of ROS, apoptosis and ERS, protect liver function in DILI mice. The mount of M2 was increased in the liver. hMSCs could also induce the production of SGs, inhibit the cGAS-STING pathway and reduce TNF-α, IL-6, IL-1β mRNA expression. The results in vitro showed that hMSCs could induce the production of SGs in macrophages, inhibit the cGAS-STING pathway, promote the secretion of IL-4 and IL-13, and reduce TNF-α, IL-6, IL-1β mRNA level in cells. In the process of IL-4 inducing M2 macrophage activation, anisomycin could inhibit the production of SGs, activate the cGAS-STING pathway, and promote the inflammatory factor TNF-α, IL-6, IL-1β mRNA expression in cells.

CONCLUSIONS: HMSCs had a protective effect on acute DILI in mice induced by APAP. Its mechanism might involve in activating M2 type macrophages, promoting the production of SGs, inhibiting the cGAS-STING pathway, and reducing the expression of pro-inflammatory factors in macrophages, to reduce hepatocytes damage.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:165

Enthalten in:

Molecular immunology - 165(2024) vom: 11. Jan., Seite 42-54

Sprache:

Englisch

Beteiligte Personen:

Wang, Yao [VerfasserIn]
She, Sha [VerfasserIn]
Li, Wenyuan [VerfasserIn]
Zhu, Jiling [VerfasserIn]
Li, Xun [VerfasserIn]
Yang, Fan [VerfasserIn]
Dai, Kai [VerfasserIn]

Links:

Volltext

Themen:

207137-56-2
362O9ITL9D
Acetaminophen
CGAS-STING pathway
DNA Helicases
Drug induced liver injury
EC 2.7.7.-
EC 3.6.4.-
EC 3.6.4.12
EC 3.6.4.13
G3BP1 protein, human
HMSCs
Interleukin-4
Interleukin-6
Journal Article
M2 macrophages
Nucleotidyltransferases
Poly-ADP-Ribose Binding Proteins
RNA, Messenger
RNA Helicases
RNA Recognition Motif Proteins
Reactive Oxygen Species
Stress granules
Tumor Necrosis Factor-alpha

Anmerkungen:

Date Completed 12.01.2024

Date Revised 12.01.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.molimm.2023.12.005

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366416294