Tricin attenuates the progression of LPS-induced severe pneumonia in bronchial epithelial cells by regulating AKT and MAPK signaling pathways

Abstract

Background: Pneumonia is a continuous and widespread disease with higher incidence, the effects of it on human life can be fearful. Tricin has been demonstrated to take part in the progression and development of diseases. However, the function of Tricin and its related regulatory pathways remain unclear. This study was planned to investigate the effects of Tricin on severe pneumonia. Methods: The cell viability was detected through CCK-8 assay. The TNF-α, IL-1β and IL-6 levels were assessed through ELISA and RT-qPCR. The levels of MDA, SOD and GSH were tested through corresponding commercial kits. The protein expressions were examined through western blot. Results: In our study, the lipopolysaccharide (LPS) was firstly used to stimulate cell model for severe pneumonia. We discovered that Tricin had no toxic effects on BEAS-2B cells and the decreased cell viability induced by LPS was relieved by a dose-dependent Tricin treatment. Additionally, through ELISA and RT-qPCR, it was uncovered that Tricin reduced the LPS-induced inflammation through regulating TNF-α, IL-1β and IL-6. Furthermore, Tricin relieved LPS-induced oxidative stress through reducing MDA level and enhancing SOD and GSH levels. Finally, it was demonstrated that Tricin retarded LPS-activated AKT and MAPK pathways. Conclusion: Our findings revealed that Tricin attenuated the progression of LPS induced severe pneumonia through modulating AKT and MAPK signaling pathways. This discovery might afford one novel sight for the treatment of severe pneumonia.