Erschienen in:
01.04.2011 | Original Article
Localization of d-serine and serine racemase in neurons and neuroglias in mouse brain
verfasst von:
Xiaohui Ding, Ning Ma, Masato Nagahama, Kumiko Yamada, Reiji Semba
Erschienen in:
Neurological Sciences
|
Ausgabe 2/2011
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Abstract
d-Serine is a novel candidate for an intrinsic ligand for the glycine site of N-methyl-d-aspartate (NMDA) receptors in mammalian brain. d-Serine and serine racemase, which produces d-serine from l-serine, have long been presumed to be localized in astrocytes. However, we have reported that d-serine immunoreactivity was observed in neurons in rats. In the present study, the distributions of d-serine and serine racemase were investigated in combination with marker proteins for neurons, astrocytes and oligodendrocytes in mice. Immunoreactivities for d-serine and serine racemase were found in neurons and oligodendrocytes. These results suggest that d-serine can be produced in neurons as well as glias and used as a neurotransmitter, which control the synaptic function of NMDA receptors.