N-Acetyl-D-galactosamine (GalNAc) is a terminal essential amino sugar derived from galactose and forms the antigens of blood group A in humans. N-Acetyl-D-galactosamine (GalNAc) interact with Soya bean agglutinin (SBA), hence decreasing the effects of SBA on cellular membrane permeability and tight junction protein expression in piglets.N-Acetyl-D-galactosamine (GalNAc) inhibits the hemagglutinating activity by the lectin.
N-Acetyl-D-galactosamine (GalNAc) (50nm; 4 hours) decreases the expression of occludin mRNA and claudin-3 mRNA by 1.6% and 2.7%[1].N-Acetyl-D-galactosamine (GalNAc) (50nm; 4 hours) lowers the protein expression of occludin and claudin-3 by 4.3% and 7.2%, respectively[1].
References:
[1]. Zhao B, et al. N-Acetyl-d-galactosamine prevents soya bean agglutinin-induced intestinal barrier dysfunction in intestinal porcine epithelial cells. J Anim Psiol Anim Nutr (Berl). 2019 Jul;103(4):1198-1206.
[2]. Sadanandan R, et al. Isolation, Purification and Characterisation of a D-galactose and N-acetyl-D-galactosamineSpecific Lectin from Marine Sponge Fasciospongia cavernosa. Protein Pept Lett. 2018;25(9):871-877.