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Myeloid-derived Suppressor Cells in Influenza Virus-induced Asthma Exacerbation

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Journal Front Immunol
Date 2024 May 2
PMID 38694499
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Abstract

Myeloid-derived suppressor cells (MDSCs) are a phenotypically heterogenous group of cells that potently suppress the immune response. A growing body of evidence supports the important role of MDSCs in a variety of lung diseases, such as asthma. However, the role of MDSCs in asthma exacerbation has so far not been investigated. Here, we studied the role of MDSCs in a murine model of influenza virus-induced asthma exacerbation. BALB/c mice were exposed to house dust mite (HDM) three times a week for a total of five weeks to induce a chronic asthmatic phenotype, which was exacerbated by additional exposure to the A/Hamburg/5/2009 hemagglutinin 1 neuraminidase 1 (H1N1) influenza virus. Induction of lung inflammatory features, production of T helper (Th) 1- and Th2- associated inflammatory cytokines in the lavage fluid and an increased airway hyper-responsiveness were observed, establishing the asthma exacerbation model. The number and activity of pulmonary M-MDSCs increased in exacerbated asthmatic mice compared to non-exacerbated asthmatic mice. Furthermore, depletion of MDSCs aggravated airway hyper-responsiveness in exacerbated asthmatic mice. These findings further denote the role of MDSCs in asthma and provide some of the first evidence supporting a potential important role of MDSCs in asthma exacerbation.

References
1.
Li H, Wang H, Sokulsky L, Liu S, Yang R, Liu X . Single-cell transcriptomic analysis reveals key immune cell phenotypes in the lungs of patients with asthma exacerbation. J Allergy Clin Immunol. 2020; 147(3):941-954. DOI: 10.1016/j.jaci.2020.09.032. View

2.
Gabriel G, Klingel K, Otte A, Thiele S, Hudjetz B, Arman-Kalcek G . Differential use of importin-α isoforms governs cell tropism and host adaptation of influenza virus. Nat Commun. 2011; 2:156. PMC: 3105303. DOI: 10.1038/ncomms1158. View

3.
Castillo J, Peters S, Busse W . Asthma Exacerbations: Pathogenesis, Prevention, and Treatment. J Allergy Clin Immunol Pract. 2017; 5(4):918-927. PMC: 5950727. DOI: 10.1016/j.jaip.2017.05.001. View

4.
Boomer J, Parulekar A, Patterson B, Yin-DeClue H, Deppong C, Crockford S . A detailed phenotypic analysis of immune cell populations in the bronchoalveolar lavage fluid of atopic asthmatics after segmental allergen challenge. Allergy Asthma Clin Immunol. 2013; 9(1):37. PMC: 3848528. DOI: 10.1186/1710-1492-9-37. View

5.
Gerlach T, Kuhling L, Uhlendorff J, Laukemper V, Matrosovich T, Czudai-Matwich V . Characterization of the neuraminidase of the H1N1/09 pandemic influenza virus. Vaccine. 2012; 30(51):7348-52. DOI: 10.1016/j.vaccine.2012.09.078. View