Cytotoxic potency of self-assembled Ruthenium(II)-NHC complexes with pincer type 2, 6-bis(N-methylimidazolylidene/ benzimidazolylidene)pyrazine ligands.

Autor: Roymahapatra, Gourisannkar, Dinda, Joydev, Mishra, Anjan, Mahapatra, Ambikesh, Wen-Shu Hwang, Mandal, Santi M.
Předmět:
Zdroj: Journal of Cancer Research & Therapeutics; Jan-Mar2015, Vol. 11 Issue 1, p105-112, 9p
Abstrakt: Objective: To study the cytotoxic potency of self-assembled Ruthenium(II)-NHC complexes with 2,6-di-(N-methylimidazolylidene/ benzimidazolylidene)pyrazine ligands. Materials and Methods: Ru(II)-N-heterocyclic (Ru-NHC) complexes, Bis-[2,6-di-(N-methylimidazol-2-ylidene)pyrazine]ruthenium(II) hexaflurophosphate (3), Bis-[2,6-di-(N-methylbenzimidazol-2-ylidene)pyrazine]ruthenium(II) hexaflurophosphate (4) have been synthesized from corresponding ligands 2,6-di-(N-methylimidazolium)pyrazine dichloride (1); 2,6-di-(N-methylbenzimidazolium) pyrazine dichloride (2). Complexes were studied to determine their pro-apoptotic activity against HCT15 and Hep2 cell lines, and antimicrobial activity against Pseudomonas aeruginosa, Staphylococcus epidermidis and Candida albicans. Results: Both, complex 3 and 4, formed a nanosphere structure in aqueous growth medium. Cytotoxicity study revealed that complex 3 was more effective than complex 4. Complexes mainly target cellular DNA and bacterial cell wall. Conclusion: This is the first report on the formation of nanoball structure of Ru(II)-NHC complexes. Thus, complex 3 provides a new insight to develop antitumor or antimicrobial drug. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index