Establishment and application of screening model for anti-asthmatic natural active ingredients based on bitter taste receptors in lung tissue / 中草药

ABSTRACT

Objective: To construct high-throughput screening cell model targeting TAS2R14 receptor and lay the foundation for the search of effective, novel natural anti-asthma drugs with low toxicity. Methods: The pLVX-AcGFP1-N1-TAS2R14 lentivirus vector carrying green fluorescent protein (GFP) was constructed. The lentiviral vector was transfected into HEK HEK293T cells, collected high titer lentiviral concentration liquid and infected HEK293T cells, established cell model highly specific expressed TAS2R14 receptor gene. The TAS2R14 cell model was used to screen 120 kinds of Chinese herb extracts and chemical monomers. Results: The calculated Z' values of the cell model were 0.69 and 0.66, and Citri Reticulatae Pericarpium extract and its efficacy material limonin, Ginkgo Semen extract and its efficacy material rutin and quinine agitated TAS2R14 cell model. Conclusion: The constructed TAS2R14 cell model is stable and sensitive for screening anti-asthma drugs, and three kinds of Chinese materia medica monomers have the potential agonist the activity on TAS2R14 receptor.