ABSTRACT
Objective To investigate the anti-inflammatory mechanism of the alkaloids in Dengtaiye Tablets (DTYT) based on the network pharmacology and chemomics. Methods The main indole alkaloids in the DTYT from Folium Alstoniae Scholaris were identified by UPLC-Q/TOF. The network pharmacology coupled with virtual docking technology and bioinformatics analysis were carried out for screening the key protein targets and pathways. Western blotting was utilized for evaluating the phosphorylation level of the primary node proteins in BEAS-2B cells inflammatory model induced by LPS. Results Twelve indole alkaloids were found in DTYT extract, which act on different protein targets, such as PDPK1 (PDK1), MAPK1 (ERK2), and MAPK8 (JNK1) respectively, and reduce the level of ERK2, JNK1, and IKK phosphorylation induced by LPS. Conclusion As the Q-markers of anti-inflammatory, the indole alkaloids contained in DTYT inhibited the PDK1/AKT/NF-κB and MAPK pathways, which present potential molecular mechanisms for the treatment of chronic bronchitis of DTYT.