Inhibitory myší serinracemasy

Vorlová, Barbora

Serine racemase (SR) is a pyridoxal-5'-phosphate-dependent enzyme responsible for biosynthesis of D-serine, a recognized neurotransmitter acting as a co-activator of N-methyl- D-aspartate (NMDA) type of glutamate receptors in the mammalian central nervous system. The hyperfunction of the mentioned receptors have been shown to be implicated in many neuropathological conditions including Alzheimer's disease, amyotrophic lateral sclerosis and epilepsy. To alleviate the symptoms of these diseases, several artificial blockers of NMDA receptors have been introduced into the clinical practice. However, many of these compounds cause undesirable side effects and it is thus necessary to search for either less harmful blockers or regulators of other targets of pharmaceutical intervention that are involved in NMDA receptor activation. In this context, specific inhibition of serine racemase seems to be a promising strategy for regulation of NMDA receptor overstimulation. Mouse serine racemase shares 89% identity with its human ortholog and it was also shown that both enzymes possess similar kinetic parameters and inhibitor specificity. Therefore, the mouse models can be used to search for a potent human serine racemase inhibitor. Although many different compounds for their inhibitory potency towards serine...

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