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Polymorphonuclear myeloid-derived suppressor cells attenuate allergic airway inflammation by negatively regulating group 2 innate lymphoid cells #MMPMID30575026
Cao Y; He Y; Wang X; Liu Y; Shi K; Zheng Z; Su X; Lei A; He J; Zhou J
Immunology 2019[Apr]; 156 (4): 402-412 PMID30575026show ga
Hyperactivation of the type 2 immune response is the major mechanism of allergic asthma, in which both group 2 innate lymphoid cells (ILC2s) and type 2 helper T (Th2) cells participate. Myeloid-derived suppressor cells (MDSCs) alleviate asthma by suppressing Th2 cells. However, the potential effects of MDSCs on the biological functions of ILC2s remain largely unknown. Here, we examined the roles of MDSCs (MDSCs) in the modulation of ILC2 function. Our results showed that polymorphonuclear (PMN)-MDSCs, but not monocytic (M-) MDSCs, effectively suppressed the cytokine production of ILC2s both in vitro and in vivo, thereby alleviating airway inflammation. Further analyses showed that cyclo-oxygenase-1 may mediate the suppressive effects of PMN-MDSCs on ILC2 responses. Our findings demonstrated that PMN-MDSCs may serve as a potent therapeutic target for the treatment of ILC2-driven allergic asthma.
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Immunology 2019 ; 156 (4): 402-412
