Long-acting β2-adrenoreceptor agonists suppress type 1 interferon expression in human plasmacytoid dendritic cells via epigenetic regulation

doi:10.1016/j.pupt.2017.10.004.

中山醫學大學機構典藏 CSMUIR > 醫學院 > 醫學系 > 期刊論文 > Item 310902500/21028

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题名:	Long-acting β2-adrenoreceptor agonists suppress type 1 interferon expression in human plasmacytoid dendritic cells via epigenetic regulation
作者:	Chang-Hung Kuo;San-Nan Yang;Yi-Giien Tsai;Chong-Chao Hsieh;Wei-Ting Liao;Li-Chen Chen;Min-Sheng Lee;Hsuan-Fu Kuo;Ching-Hsiung Lin;Chih-Hsing Hung
贡献者:	醫學系
关键词:	Corticosteroid;Dendritic cell;Epigenetics;Long-acting β2-adrenoreceptor agonist;Type 1 interferon.
日期:	2018-02
上传时间:	2020-08-10T03:11:12Z (UTC)
出版者:	Pulmonary Pharmacology & Therapeutics
摘要:	Abstract The combination of inhaled long-acting β2-adrenoreceptor (LABA) and inhaled glucocorticoid (ICS) is a major therapy for asthma. However, the increased risk of infection is still a concern. Plasmacytoid dendritic cells (pDCs) are the predominant cells producing type 1 interferon (IFN) against infection. The effect of LABA/ICS on type 1 IFN expression in human pDCs is unknown. Circulating pDCs were isolated from healthy human subjects and were pretreated with glucocorticoid (GCS), LABA or a cAMP analog, and were stimulated with Toll-like receptor (TLR) agonist CpG (TLR9) or imiquimod (TLR7) in the presence of IL-3. The expression of type 1 IFN (IFN-α/β) were measured by ELISA. The mechanisms were investigated using receptor antagonists, pathway inhibitors, Western blotting and chromatin immunoprecipitation. GCS suppressed TLR-induced IFN-α expression, and LABA enhanced the suppressive effect. LABA alone also suppressed TLR-induced IFN-α/β expression, and the effect was reversed by the β2-adrenoreceptor antagonist ICI118551. Dibutyryl-cAMP, a cAMP analog, conferred a similar suppressive effect, and the effect was abrogated by the exchange protein directly activated by cAMP (Epac) inhibitor HJC0197 or intracellular free Ca2+ chelator BAPTA-AM. Formoterol suppressed TLR-induced phosphorylation of mitogen-activated protein kinase (MAPK)-p38/ERK. Formoterol suppressed interferon regulatory factor (IRF)-3/IRF-7 expression. Formoterol suppressed CpG-induced translocation of H3K4 specific methyltransferase WDR5 and suppressed H3K4 trimethylation in the IFNA and IFNB gene promoter region. LABA suppressed TLR7/9-induced type 1 IFNs production, at least partly, via the β2-adrenoreceptor-cAMP-Epac-Ca2+, IRF-3/IRF-7, the MAPK-p38/ERK pathway, and epigenetic regulation by suppressing histone H3K4 trimethylation through inhibiting the translocation of WDR5 from cytoplasm to nucleus. LABA may interfere with anti-viral immunity.
URI:	https://ir.csmu.edu.tw:8080/ir/handle/310902500/21028
關聯:	Pulmonary Pharmacology & Therapeutics Volume 48, February 2018, Pages 37-45
显示于类别:	[醫學系] 期刊論文

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