Osthole extracted from a citrus fruit that affects apoptosis on A549 cell line by histone deacetylasese inhibition (HDACs)

Hamed A Abosharaf; Thoria Diab; Faten M Atlam; Tarek M Mohamed

doi:10.1016/j.btre.2020.e00531

Osthole extracted from a citrus fruit that affects apoptosis on A549 cell line by histone deacetylasese inhibition (HDACs)

Biotechnol Rep (Amst). 2020 Sep 22:28:e00531. doi: 10.1016/j.btre.2020.e00531. eCollection 2020 Dec.

Authors

Hamed A Abosharaf¹, Thoria Diab¹, Faten M Atlam², Tarek M Mohamed¹

Affiliations

¹ Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt.
² Theoretical Applied Chemistry Unit (TACO), Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt.

Abstract

This study aims to investigate the interactions between osthole extracted from Egyptian citrus fruits as HDACs inhibitor by theoretical study and practically. Besides, osthole was assed as anti-cancer activity. In this study, osthole was extracted from the Egyptian citrus fruit and was characterized. The role of osthole as in vitro inhibitor of HDACs was estimated and evaluated the antitumor activity against human lung cancer cells (A549), Caspase-9 activity was detected. The results obtained from GC-MS indicate that the grapefruit showed the highest osthole concentration compared to the other citrus fruits. Moreover, the grapefruit osthole competitively inhibits HDACs. The inhibition constant value, (Ki=3.36 mM), indicates that osthole exerts an inhibitory effect upon HDACs activity. In vitro study of osthole could inhibit the growth of A549 cells that depend on time and concentration. It also induces apoptosis and causes an increase of caspase-9 by osthole. In conclusion, grapefruit osthole could induce the apoptosis in A549 lung cancer cells by inhibiting the histone deacetylase.

Keywords: Antitumor activity; Histone deacetylase; Lung cancer; Osthole.