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논문 기본 정보

자료유형
학술저널
저자정보
Kwon Eun-Kyung (Hallym University College of Medicine) 최영우 (Ajou University School of Medicine) Yoon Il-Hee (VHS Veterans Medical Research Institute) Won Ha-Kyeong (Veterans Health Service Medical Center) 심소윤 (아주대학교) Lee Hee-Ra (MD Healthcare Inc.) Kim Hyoung Su (Hallym University College of Medicine) 예영민 (Ajou University School of Medicine) 신유섭 (Ajou University School of Medicine) 박해심 (Ajou University School of Medicine) Ban Ga-Young (Hallym University College of Medicine)
저널정보
대한생화학·분자생물학회 Experimental and Molecular Medicine Experimental and Molecular Medicine 제53권
발행연도
2021.6
수록면
1 - 10 (10page)
DOI
10.1038/s12276-021-00622-x

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Asthma is a chronic eosinophilic inflammatory disease with an increasing prevalence worldwide. Endocannabinoids are known to have immunomodulatory biological effects. However, the contribution of oleoylethanolamide (OEA) to airway inflammation remains to be elucidated. To investigate the effect of OEA, the expression of proinflammatory cytokines was measured by RT-qPCR and ELISA in airway epithelial (A549) cells. The numbers of airway inflammatory cells and cytokine levels in bronchoalveolar lavage fluid, airway hyperresponsiveness, and type 2 innate lymphoid cells (ILC2s) were examined in BALB/c mice after 4 days of OEA treatment. Furthermore, eosinophil activation after OEA treatment was evaluated by measuring cellular CD69 levels in eosinophils from human peripheral eosinophils using flow cytometry. OEA induced type 2 inflammatory responses in vitro and in vivo. OEA increased the levels of proinflammatory cytokines, such as IL-6, IL-8, and IL-33, in A549 cells. In addition, it also induced eosinophilic inflammation, the production of IL-4, IL-5, IL-13, and IL-33 in bronchoalveolar lavage fluid, and airway hyperresponsiveness. OEA increased the numbers of IL-5- or IL-13-producing ILC2s in a mouse model. Finally, we confirmed that OEA increased CD69 expression (an eosinophil activation marker) on purified eosinophils from patients with asthma compared to those from healthy controls. OEA may play a role in the pathogenesis of asthma by activating ILC2s and eosinophils.

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