[Study on relationship between efficacy against lung cancer and different parts of Schizonepeta tenuifolia based on microfluidic chip technology]

In order to further clarify the rational use of different medicinal parts of Schizonepeta, microfluidic technology was used in this study to investigate the differences in drug efficacy against lung cancer in vitro. The ethanol extracts were examined with HPLC to establish their fingerprints in order to analyze the relationship between the spectrum and efficacy index through Grey Correlation software, and a rapid HPLC-Q-TOF/MS method was established. The result in vitro shows that the effect and components of different medicinal parts had a certain differences, and apoptosis and necrosis rate from big to small in turn is leaf, flower, root, stem. The chromatographic peaks of the 26, 12, 2, 6 and 15th are the luteolin, icynaroside, rosmarinic, caffeic acid, and hesperidin, while the 20 and 10th may be dan phenolic acid L and benzoic acid. On the one hand, preliminary study reflects that the root of Schizonepeta tenuifolia may be developed into the medicinal parts in future. On the other hand, the major chemical composition of S. tenuifolia was found to have the anti-lung-tumor effects. This new method was established for the quality control and the rational use of different parts of traditional Chinese medicine.