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KMID : 1225720210130030363
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Allergy, Asthma & Immunology Research : AAIR
2021 Volume.13 No. 3 p.363 ~ p.374
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A Potential Role of Group 2 Innate Lymphoid Cells in Eosinophilic Chronic Rhinosinusitis With Nasal Polyps
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Li Yan
Wang Wei
Ying Sun
Lan Feng
Zhang Luo
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Abstract
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Chronic rhinosinusitis with nasal polyps (CRSwNP), a type 2-based upper airway disease, is mainly characterized by high asthma comorbidity and recurrence after surgery. It has been shown that type 2 cytokines, including interleukin (IL)-4, IL-5, and IL-13 released from T helper 2 (Th2) cells as well as group 2 innate lymphoid cells (ILC2s), contribute to chronic inflammation of CRSwNP. This review summarizes recent progresses made in our understanding of ILC2 activity, particularly ILC2 accumulation at airway inflammation sites, cooperation with Th2 cells in aggravating the CRSwNP inflammatory process and interactions with regulatory T cells (Tregs) in resisting Tregs-mediated suppressive function in allergic inflammation. A better understanding of the biology of ILC2s should lay a good foundation in elucidating the pathogenesis of CRSwNP, and subsequently may lead to the development of new therapeutic strategies for the management of CRSwNP.
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KEYWORD
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Sinusitis, nasal polyps, innate immunity, lymphocytes, Treg cells, eosinophils, respiratory tract diseases, asthmas, cytokines
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