Journal
ARCHIVES OF PHARMACAL RESEARCH
Volume 23, Issue 5, Pages 525-530Publisher
PHARMACEUTICAL SOC KOREA
DOI: 10.1007/BF02976584
Keywords
mST3GalV; embryogenesis
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mST3GalV synthesizes ganglioside GM3, the precursor for simple and complex a- and b- series gangliosides, and the expression and regulation of mST3CalV (CMP-NeuAc: lactosylceramide alpha2,3-sialyltransferase) activity is central to the production of almost all gangliosides, a class of glycosphingolipids implicated in variety of cellular processes such as transmembrane signaling, synaptic transmission, specialized membrane domain formation and cell-cell interactions. To understand the developmental expression of mST3GalV in mice, we investigated the spatial and temporal expression of mST3GalV mRNA during the mouse embryogenesis [embryonic (E) days; E9, E11, E13, E15] by in situ hybridization with digoxigenin-labeled RNA probes. All tissues from E9 and E11 were positive for mST3CalV mRNA. On E13, mST3CalV mRNA was expressed in various neural and non-neural tissues. In contrast to these, on E15, the telencephalon and liver produced a strong expression of mST3Gal V which was a quite similar to that of E13. In this stage, mST3GalV mRNA was also expressed in some non-neural tissues. These data indicate that mST3GalV is differently expressed at developmental stages of embryo, and this may be importantly related with regulation of organogenesis in mice.
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