Mucosal Associated Invariant T Cells Were Activated and Polarized Toward Th17 in Chronic Obstructive Pulmonary Disease.

Abstract

Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease characterized by airway limitation accompanied with infiltration of inflammatory cells. Mucosal associated invariant T (MAIT) cells can recognize bacteria and play an important role in controlling host immune responses by producing cytokines. In this study, we characterized the function and the ability of MAIT cells to secrete cytokines measured by flow cytometry. In COPD patients, MAIT cells have the ability to produce more IL-17 and less IFN-γ compared to healthy individuals. We found that HLA-DR expression levels reflected the degree of inflammation and the proportion of IL-17 was significantly correlated with lung function in peripheral blood. In addition, we found that MAIT cells were highly expressed in the lung, and the increased expression of CXCR2, CXCL1 indicated that MAIT cells had the potential to migrate to inflammatory tissues. This evidence implies that MAIT cells may play a potential role in COPD immunopathology.

• Authors: Wenjia Qiu, Ning Kang, Yanxu Wu, Yongjun Cai, Li Xiao, Haiyan Ge, Huili Zhu
• Journal: Frontiers in immunology (Front Immunol) Vol. 12 Pg. 640455 ( 2021) ISSN: 1664-3224 [Electronic] Switzerland
• PMID: 33868270 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2021 Qiu, Kang, Wu, Cai, Xiao, Ge and Zhu.

Chemical References

• Cytokines

Topics

• Aged
• Cell Differentiation (immunology)
• Cytokines (immunology)
• Female
• Humans
• Lymphocyte Activation (immunology)
• Male
• Middle Aged
• Mucosal-Associated Invariant T Cells (immunology)
• Pulmonary Disease, Chronic Obstructive (immunology)
• Th17 Cells (immunology)