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العنوان
Effect of some newly synthesized steroid derivatives on apoptosis of breast cancer cells /
الناشر
Ghada Hamdi Elsayed Mohamed ,
المؤلف
Ghada Hamdi Elsayed Mohamed
تاريخ النشر
2017
عدد الصفحات
97 P. :
الفهرس
Only 14 pages are availabe for public view

from 140

from 140

Abstract

Anticancer agents consisting of hybrid molecules are used to improve effectiveness and diminish drug resistance. The current study aimed to introduce newly synthesized hetero-steroids of promising anticancer effects. Besides, the pro-apoptotic effects of new compounds were investigated extensively. Several pyrimidino-, triazolopyrimidino-, pyridazino-, and curcumin- steroid derivatives were synthesized, elucidated and confirmed using the spectral and analytical data. The synthesized hetero-steroids, compounds 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22 and 24, were tested for their cytotoxic effects versus human breast cancer cells (MCF-7) using neutral red supravital dye uptake assay. Compound 24 (IC50 = 18 æM) showed more inhibitory influence on MCF-7 growth. Using QRT-PCR (Quantitative real time-polymerase chain reaction), CCND1, Survivin, BCL-2, CDC2, P21 and P53, genes expression levels were investigated. The study results disclose that compounds 4, 7, 18, 24 knocked down the expression levels of CCND1, Survivin, BCL-2 and CDC2. However, P21 and P53 were up- regulated by compounds 21, 22. This study introduced promising pro-apoptotic anticancer agents acting through the modulation of key regulators of apoptosis and cell cycle genes. The current study revealed the most promising compounds 7, 18, 21 down-regulated miR-34a, miR-98 and miR-214 expression levels and decreased upon drug resistance response.