Biochemical and computational evaluation of Triptolide-induced cytotoxicity against NSCLC - 29/05/18
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Graphical abstract |
Highlights |
• | Triptolide showed a potent cytotoxic effect again NSCLC. |
• | Triptolide altered the phosphorylation status of AKT/mTOR/p70S6K signaling axis. |
• | Molecular docking and molecular dynamics simulation predicted a better affinity between Triptolide and AKT-1. |
• | Triptolide treatment impaired glucose utilization and the cellular anti-oxidant response. |
• | AKT/mTOR –HKII inhibition could represent a new approach for Triptolide-induced cytotoxicity. |
Abstract |
Triptolide is the major bioactive component isolated from the Chinese Medicinal plant Tripterygium wilfordii. Despite the growing interest and the plethora of reports discussing the pharmacological activity of this diterpenoid, no clear consensus regarding its cellular targets and full mechanism of action has been reached.
In the present work, a combined in vitro and in silico approach was used to evaluate the biological activity of Triptolide on Non-small cell lung cancer (NSCLC). In vitro, Triptolide treatment induced apoptosis in NSCLC cell lines and down-regulated the phosphorylation of AKT, mTOR, and p70S6K. Triptolide also impacted cellular glycolysis as well as the antioxidant response through the impairment of glucose utilization, HKII, glutathione, and NRF2 levels. Molecular docking results examined the possible interactions between Triptolide and AKT and predicted an allosteric binding to AKT-1 structure. Molecular dynamics simulations were further used to evaluate the stability of the complex formed by Triptolide’s best conformer and AKT. These findings provide an insightful approach to the anticancer effect of Triptolide against NSCLC and highlight a possible new role for AKT/mTOR HKII inhibition.
Le texte complet de cet article est disponible en PDF.Keywords : Triptolide, Non-small cell lung cancer, AKT, Molecular docking
Plan
Vol 103
P. 1557-1566 - juillet 2018 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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