Oulmidi Afaf, Radi Smaail, Idir Abderrazak, Zyad Abdelmajid, Kabach Imad, Nhiri Mohamed, Robeyns Koen, Rotaru Aurelian, Garcia Yann
LCAE, Department of Chemistry, Faculty of Sciences, University Mohamed I BP 524 60 000 Oujda Morocco
Institute of Condensed Matter and Nanosciences, Molecular Chemistry, Materials and Catalysis (IMCN/MOST), Université catholique de Louvain Belgium.
RSC Adv. 2021 Oct 27;11(55):34742-34753. doi: 10.1039/d1ra05918a. eCollection 2021 Oct 25.
The complexes: CoL (1), FeL (2), NiL (3) and [MnLCl] (4), with L = diethyl-1,1'-(pyridine-2,6-diyl)bis(5-methyl-1-pyrazole-3-carboxylate), were synthesized and fully characterized. Structural analysis revealed two distinct patterns influenced by the counter ions where L acts as a tridentate chelating ligand. The antitumor activity of L and L' (diethyl 2,2'-(pyridine-2,6-diylbis(5-methyl-1-pyrazole-3,1-diyl)) diacetate) as well as their metal complexes, was tested by the measurement of their cytostatic and cytotoxic properties towards the blood cancer mastocytoma cell line P815. We have also investigated their interactions with the antioxidant enzyme system. As a result, [MnL'Cl] (1') exhibited the strongest activity compared to reference cis-platin with no cytotoxicity towards normal cells PBMCs (Peripheral Blood Mononuclear Cells). On the other hand, the antioxidant enzyme activity showed that the efficiency of metal complex 1' against P815 tumor cells was the rise in the SOD activity and inhibition of CAT enzyme activity. This proof of concept study allows disclosure of a new class of molecules in cancer therapeutics.
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