Airway relaxation mechanisms and structural basis of osthole for improving lung function in asthma.
Airway relaxation mechanisms and structural basis of osthole for improving lung function in asthma.
复制标题
蛇床子素改善哮喘肺功能的气道松弛机制和结构基础
DOI:
10.1126/scisignal.aax0273
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发表时间:
2020-11-24
影响因子:
7.3
通讯作者:
Tu Y
中科院分区:
文献类型:
--
作者:
Wang S;Xie Y;Huo YW;Li Y;Abel PW;Jiang H;Zou X;Jiao HZ;Kuang X;Wolff DW;Huang YG;Casale TB;Panettieri RA Jr;Wei T;Cao Z;Tu Y
Overuse of β2-adrenoceptor agonist bronchodilators evokes receptor desensitization, decreased efficacy, and an increased risk of death in asthma patients. Bronchodilators that do not target β2-adrenoceptors represent a critical unmet need for asthma management. Here, we characterize the utility of osthole, a coumarin derived from a traditional Chinese medicine, in preclinical models of asthma. In mouse precision-cut lung slices, osthole relaxed preconstricted airways, irrespective of β2-adrenoceptor desensitization. Osthole administered in murine asthma models attenuated airway hyperresponsiveness, a hallmark of asthma. Osthole inhibited phosphodiesterase 4D (PDE4D) activity to amplify autocrine prostaglandin E2 signaling in airway smooth muscle cells that eventually triggered cAMP/PKA-dependent relaxation of airways. The crystal structure of the PDE4D complexed with osthole revealed that osthole bound to the catalytic site to prevent cAMP binding and hydrolysis. Together, our studies elucidate a specific molecular target and mechanism by which osthole induces airway relaxation. Identification of osthole binding sites on PDE4D will guide further development of bronchodilators that are not subject to tachyphylaxis and would thus avoid β2-adrenoceptor agonist resistance.
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影响因子:
3.7
作者:
Donovan C;Royce SG;Esposito J;Tran J;Ibrahim ZA;Tang ML;Bailey S;Bourke JE
通讯作者:
Bourke JE
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1164/ajrccm.158.supplement_2.13tac110
发表时间:
1998-11-01
影响因子:
24.7
作者:
Johnson, M
通讯作者:
Johnson, M
影响因子:
7.3
作者:
DELAMERE, F;HOLLAND, E;KNOX, A
通讯作者:
KNOX, A
影响因子:
9.6
作者:
Busse, William W.
通讯作者:
Busse, William W.