Abstract:
:Levamisole, the imidazo[2,1-b]thiazole derivative has been reported as a potential antitumor agent. In the present study, we synthesized, characterized and evaluated biological activity of its novel analogues with substitution in the aralkyl group and on imidazothiadiazole molecules with same chemical backbone but different side chains namely 2-aralkyl-6-(4'-fluorophenyl)-imidazo[2,1-b][1,3,4]thiadiazoles (SCR1), 2-aralkyl-5-bromo-6-(4'-fluorophenyl)-imidazo[2,1-b][1,3,4]-thiadiazoles (SCR2), 2-aralkyl-5-formyl-6-(4'-fluorophenyl)-imidazo[2,1-b][1,3,4]-thiadiazoles (SCR3) and 2-aralkyl-5-thiocyanato-6-(4'-fluorophenyl)-imidazo[2,1-b][1,3,4]-thiadiazoles (SCR4) on leukemia cells. The cytotoxic studies showed that 3a, 4a, and 4c exhibited strong cytotoxicity while others had moderate cytotoxicity. Among these we chose 4a (IC50, 8 μM) for understanding its mechanism of cytotoxicity. FACS analysis in conjunction with mitochondrial membrane potential and DNA fragmentation studies indicated that 4a induced apoptosis without cell cycle arrest suggesting that it could be used as a potential chemotherapeutic agent.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Karki SS,Panjamurthy K,Kumar S,Nambiar M,Ramareddy SA,Chiruvella KK,Raghavan SCdoi
10.1016/j.ejmech.2011.02.064subject
Has Abstractpub_date
2011-06-01 00:00:00pages
2109-16issue
6eissn
0223-5234issn
1768-3254pii
S0223-5234(11)00192-9journal_volume
46pub_type
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