Results
Title

The Effects of Deoxyelephantopin on the Akt/mTOR/P70S6K Signaling Pathway in MCF-7 Breast Carcinoma Cells In Vitro.

Authors

Fazil, Wan Failiza Wan Mohamad; Amanah, Azimah; Abduraman, Muhammad Asyraf; Sulaiman, Shaida Fariza; Wahab, Habibah Abdul; Tan, Mei Lan

Abstract

Objective: To determine the effects of deoxyelephantopin on mTOR and its related target molecules (Akt/mTOR/P70S6K) in the ER-positive breast cancer cell line. Materials and Methods: Primary in silico simulations were determined, and the effects of deoxyelephantopin on the phosphorylation of the Akt/mTOR/P70S6K molecules were evaluated using AlphaScreen-based assays and western blot analysis, respectively. Results: Based on the estimated FEB and K i values, deoxyelephantopin appeared to have a stronger affinity toward P70S6K as compared with Akt and mTOR. Both deoxyelephantopin and control inhibitors were observed to form hydrogen bonds with the same key residue, Leu175 of the P70S6K molecule. Deoxyelephantopin downregulated the p-P70S6K protein expression significantly from 18 µM (p 50 value of 7.13 µM. Conclusion: Deoxyelephantopin induced cell death in MCF-7 cells possibly via DNA fragmentation, inhibition of the phosphorylation of P70SK6, and downregulation of the relative p-p70S6K protein expression levels.

Subjects

BREAST; CELLULAR signal transduction; WESTERN immunoblotting; PROTEIN expression; CARCINOMA; CELL death

Publication

Journal of Pharmacology & Pharmacotherapeutics, 2022, Vol 13, Issue 2, p148

ISSN

0976-500X

Publication type

Academic Journal

DOI

10.1177/0976500X221114003