Synthesis, cytotoxicity for mimics of catalase: inhibitors of lactate dehydrogenase and hypoxia inducible factor.
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Lactate dehydrogenase A (LDH-A) is a potentially important metabolic target for the inhibition of the highly activated glycolysis pathway in cancer cells. Two Mn(II) complexes with ligand containing di(pyridylmethyl) amine and pyrrol-ketone were used to attenuate the activity of LDH-A. The inhibition of the manganese(II) complexes on the proliferation of HepG-2 cells is related to their ability to disproportionate H2O2. Importantly, the synthesized mimic of catalase can decrease the expression of hypoxia inducible factor (HIF-1α) in HepG-2 cells. So we envision that the multifunctional mimics of catalase could attenuate the activity of LDH-A signaling the cancer cells to death through HIF-1α involved path.