Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 17, Issue 8, Pages -Publisher
MDPI AG
DOI: 10.3390/ijms17081309
Keywords
breast cancer; blood-brain barrier; gangliosides; GD1 alpha; ST6GALNAC5; sialyltransferase; brain metastasis
Funding
- University of Lille
- Artois University
- Centre National de la Recherche Scientifique (CNRS)
- comite du Pas-de-Calais de La Ligue contre le Cancer
- Region Nord-Pas-de-Calais
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The ST6GALNAC5 gene that encodes an alpha 2,6-sialyltransferase involved in the biosynthesis of alpha-series gangliosides, was previously identified as one of the genes that mediate breast cancer metastasis to the brain. We have shown that the expression of ST6GALNAC5 in MDA-MB-231 breast cancer cells resulted in the expression of GD1 alpha ganglioside at the cell surface. By using a human blood-brain barrier in vitro model recently developed, consisting in CD34(+) derived endothelial cells co-cultivated with pericytes, we show that ST6GALNAC5 expression decreased the interactions between the breast cancer cells and the human blood-brain barrier.
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