Identifying the antiasthmatic target of doxofylline using immobilized beta2 -adrenoceptor based high-performance affinity chromatography and site-directed molecular docking.

Article Details

Citation

Zhang Y, Zeng K, Wang J, Gao H, Nan Y, Zheng X

Identifying the antiasthmatic target of doxofylline using immobilized beta2 -adrenoceptor based high-performance affinity chromatography and site-directed molecular docking.

J Mol Recognit. 2016 Oct;29(10):492-8. doi: 10.1002/jmr.2549. Epub 2016 May 12.

PubMed ID
27173639 [ View in PubMed
]
Abstract

As a xanthine derivative, doxofylline is believed to be dominant for fighting against asthma in practice. Unlike other xanthines, the antiasthmatic effects of doxofylline lack any definite proof of target and mediating mechanism according to previous reports. In this work, the interaction between doxofylline and beta2 -AR was investigated by high performance affinity chromatography using frontal analysis and nonlinear model. The methodology involved the immobilization of beta2 -AR on the silica gel by a random linking method, the determination of the binding parameters by frontal analysis and nonlinear chromatography and the exploration of the binding mechanism by site-directed molecular docking. The association constant for doxofylline binding to immobilized beta2 -AR was determined to be 7.70 x 10(4) M(-1) by nonlinear chromatography and 5.91 x 10(4) M(-1) by frontal analysis. Ser(169) and Ser(173) were the binding sites for the receptor-drug interaction on which hydrogen bond was believed to be the main driven force during the interaction. These results indicated that the antiasthmatic effects of doxofylline may be behind the mediating mechanism of beta2 -AR. High performance affinity chromatography based on immobilized receptor has potential to become an alternative for drug target confirmation and drug-receptor interaction analysis. Copyright (c) 2016 John Wiley & Sons, Ltd.

DrugBank Data that Cites this Article

Drugs
Drug Targets
DrugTargetKindOrganismPharmacological ActionActions
DoxofyllineBeta-2 adrenergic receptorProteinHumans
Yes
Agonist
Details
Drug Interactions
DrugsInteraction