۵-BDBD ameliorates an OVA-induced allergic asthma by the reduction of Th۲ cytokines production

سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 216

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شناسه ملی سند علمی:

JR_IJBMS-21-4_003

تاریخ نمایه سازی: 27 مهر 1400

چکیده مقاله:

Objective(s): P۲X۴R is expressed in immunocyte and lung tissues. It has been a focus in inflammatory responses recently. This study investigated whether blockage of P۲X۴R attenuates allergic inflammation by modulating T cell response in ovalbumin-sensitized mice. Materials and Methods: Ovalbumin was used to sensitize and challenge for a mouse model. Intranasal application of ۵-BDBD, P۲X۴R antagonist, were performed ۳ hr before each airway allergen challenge. The lung was evaluated for P۲X۴R by real-time PCR and immunofluorescence. Th۱/Th۲ cytokines in bronchoalveolar lavage fluid were measured by ELISA. T-bet, Gata-۳, and p-p۳۸ MAPK were measured by Western blot or real-time PCR. Results: P۲X۴R was overexpressed in the lung after allergen challenge compared with the control group. Blockage of P۲X۴R decreased inflammation in the lung, IL-۴ expression was reduced as well as IL-۵; IFN-γ expression was elevated in BALF in ovalbumin-sensitized mice. Moreover, blockage of P۲X۴R inhibited ovalbumin-induced increased Gata-۳ level and decreased T-bet level. Conclusion: These findings suggest that ۵-BDBD ameliorates an ovalbumin-induced asthmatic attack by the downregulation of cytokines related to the Th۲ cell.

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نویسندگان

Bing Hu

Department of Anatomy, Harbin Medical University Daqing, Daqing, ۱۶۳۳۱۹, Heilongjiang Province, China

Xiaoqian Feng

Department of Pathology, Harbin Medical University Daqing, Daqing ۱۶۳۳۱۹, Heilongjiang Province, China

Li Wang

Department of Anatomy, Harbin Medical University Daqing, Daqing, ۱۶۳۳۱۹, Heilongjiang Province, China

Yinli Song

Department of Pathology, Harbin Medical University Daqing, Daqing ۱۶۳۳۱۹, Heilongjiang Province, China

Xiuqin Ni

Department of Anatomy, Harbin Medical University Daqing, Daqing, ۱۶۳۳۱۹, Heilongjiang Province, China

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