Abstract:
:Asthma is an inflammatory disorder of the airways dominated by a Th2-type pattern. Recently, an emerging interest arises whether transient receptor potential ankyrin 1 (TRPA1) plays a potential role in the adaptive immune response. In this study, the role of TRPA1 in the development and exacerbation of asthma was explored. The classic OVA-induced asthma and OVA plus PM2.5-induced exacerbated asthma model were used. The CD4+ T cells were sorted from spleen in asthmatic and exacerbated asthmatic mice. In the BALB/c mice treated with OVA, the increased phenotype of asthma was obtained, accompanied by the high expression of TRPA1 in lung tissue and levels of IL-4, IL-13, NGF, PGD2 in BAL. In contrast, genetic deletion or pharmacological inhibition of TRPA1 alleviated the phenotype of asthma. Similarly, in wild type (WT) C57BL/6 mice treated with OVA, the high expression of TRPA1 in lung tissues was obtained, and the levels of IL-4, IL-13, NGF, PGD2 in BAL remarkably increased when compared with those in the TRPA1 deleted mice. Furthermore, high expression of TRPA1 was detected in CD4+ T cells of OVA-treated WT C57BL/6 mice. Additional detection in the asthmatic mice exacerbated by OVA plus PM2.5 also showed high TRPA1 expression in lung tissue and CD4+ T cells. All evidence confirmed that TRPA1 is essential for the development and exacerbation of asthma. More importantly, the expression of TRPA1 in CD4+ T cells of different asthmatic mice suggested that it might be involved in neuro-immune interactions in airway inflammation of asthmatic mice.
journal_name
Int Immunopharmacoljournal_title
International immunopharmacologyauthors
Li M,Fan X,Yue Q,Hu F,Zhang Y,Zhu Cdoi
10.1016/j.intimp.2020.106696subject
Has Abstractpub_date
2020-09-01 00:00:00pages
106696eissn
1567-5769issn
1878-1705pii
S1567-5769(20)30236-8journal_volume
86pub_type
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