Synthesis and apoptotic activity of new pyrazole derivatives in cancer cell lines.

Abstract:

:We designed and synthesized new pyrazole thiourea chimeric derivatives and confirmed their structures by NMR and IR spectra. Apoptotic effects were studied in human cancer cells. The N-[(1-methyl-1H-pyrazol-4-yl)carbonyl]-N'-(3-bromophenyl)-thiourea compound (4b) exhibited the highest apoptosis-inducing effect. Compound 4b and the thiazole derivatives, 5b and 6b, increased the expression of tumor necrosis factor receptors TRAIL-R2 and TRAIL-R1, accompanied by down-modulation of pro-caspase 3 levels, and the augmentation of cleaved caspase 3. They also reduced the levels of apoptosis inhibitory proteins and the expression of the heat-shock proteins Hsp27 and Hsp70. All the tested pyrazole derivatives induced a concentration-dependent increase of cells in G2/M phases. The analysis of the experimental data indicates the reduction of Akt phosphorylation as the most probable cellular mechanism of action for the tested compounds. The in vitro study indicated that compound 4b could be a promising anti-cancer drug, to be further developed in animal models of cancer.

journal_name

Bioorg Med Chem

authors

Nitulescu GM,Draghici C,Olaru OT,Matei L,Ioana A,Dragu LD,Bleotu C

doi

10.1016/j.bmc.2015.07.010

subject

Has Abstract

pub_date

2015-09-01 00:00:00

pages

5799-808

issue

17

eissn

0968-0896

issn

1464-3391

pii

S0968-0896(15)00577-5

journal_volume

23

pub_type

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