Target cell susceptibility to lysis by human natural killer cells is augmented by α(1,3)-galactosyltransferase and reduced by α(1,2)- fucosyltransferase

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Abstract

Susceptibility of porcine endothelial cells to human natural killer (NK) cell lysis was found to reflect surface expression of ligands containing Gal α(1,3)GlcNAc, the principal antigen on porcine endothelium recognized by xenoreactive human antibodies. Genetically modifying expression of this epitope on porcine endothelium by transfection with the α(1,2)- fucosyltransferase gene reduced susceptibility to human NK lysis. These results indicate that surface carbohydrate remodeling profoundly affects target cell susceptibility to NK lysis, and suggest that successful transgenic strategies to limit xenograft rejection by NK cells and xenoreactive antibodies will need to incorporate carbohydrate remodeling.

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Artrip, J. H., Kwiatkowski, P., Michler, R. E., Wang, S. F., Tugulea, S., Ankersmit, J., … Itescu, S. (1999). Target cell susceptibility to lysis by human natural killer cells is augmented by α(1,3)-galactosyltransferase and reduced by α(1,2)- fucosyltransferase. Journal of Biological Chemistry, 274(16), 10717–10722. https://doi.org/10.1074/jbc.274.16.10717

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