Archiv der Pharmazie p. 730 - 742 (2015)
Update date:2022-08-30
Topics:
Kü?ükgüzel, ?. Güniz
Ko?, Derya
?ikla-Süzgün, Pelin
?zsavci, Derya
Bing?l-?zakpinar, ?zlem
Mega-Tiber
Orun, Oya
Erzincan
Sa?-Erdem, Safiye
?ahin, Fikrettin
Tolmetin hydrazide and a novel series of tolmetin hydrazide-hydrazones 4a-l were synthesized in this study. The structures of the new compounds were determined by spectral (FT-IR, 1H NMR) methods. N′-[(2,6-Dichlorophenyl)methylidene]-2-[1-methyl-5-(4-methylbenzoyl)-1H-pyrrol-2-yl]acetohydrazide (4g) was evaluated in vitro using the MTT colorimetric method against the colon cancer cell lines HCT-116 (ATCC, CCL-247) and HT-29 (ATCC, HTB-38) to determine growth inhibition and cell viability at different doses. Compound 4g exhibited anti-cancer activity with an IC50 value of 76 μM against colon cancer line HT-29 (ATCC, HTB-38) and did not display cytotoxicity toward control NIH3T3 mouse embryonic fibroblast cells compared to tolmetin. In addition, this compound was evaluated for caspase-3, caspase-8, caspase-9, and annexin-V activation in the apoptotic pathway, which plays a key role in the treatment of cancer. We demonstrated that the anti-cancer activity of this compound was due to the activation of caspase-8 and caspase-9 involved in the apoptotic pathway. In addition, in this study, we investigated the catalytical effect of COX on the HT-29 cancer line, the apoptotic mechanism, and the moleculer binding of tolmetin and compound 4g on the COX enzyme active site. The tolmetin hydrazone N′-[(2,6-dichlorophenyl)methylidene]-2-[1-methyl-5-(4-methylbenzoyl)-1H-pyrrol-2-yl]acetohydrazide (4g) exhibited anticancer activity with an IC50 value of 76 μM against HT-29 cells and did not display cytotoxicity toward control fibroblast cells, compared to tolmetin. The anti-cancer activity of 4g was shown to be due to the activation of caspase-8 and caspase-9 involved in apoptosis.
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