Endoplasmic reticulum stress impairs the immune regulation property of macrophages in asthmatic patients.
Clin Immunol
; 252: 109639, 2023 07.
Article
em En
| MEDLINE
| ID: mdl-37172666
ABSTRACT
The current study aims to characterize the counteraction of M2 cells in response to Endoplasmic reticulum (ER) stress. ER stress was detected in bronchoalveolar lavage fluids (BALF) MÏs, which was at unresolved state in asthma patients. A positive correlation was detected between ER stress in MÏs and lung functions/allergic mediators/Th2 cytokines in BALF or specific IgE in the serum. Levels of immune regulatory mediator in the BALF were negatively correlated to ER stress in BALF MÏs. The ER stress state influenced the immune regulatory property of BALF MÏ. Exposure to environmental pollutant, 3-metheyl-4-nitrophenol, exacerbated ER stress in MÏ, which affected the MÏ phenotyping. Exacerbation of ER stress suppressed the expression of IL-10 and programmed cell death protein-1 (PD-1) in MÏs by increasing the expression of the ring finger protein 20 (Rnf20). Conditional inhibition of Rnf20 in MÏs attenuated experimental airway allergy.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Asma
Limite:
Animals
/
Humans
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article