Abstract
THERE is still no adequate explanation for the fact that the placenta, which is foetal in origin and therefore allogeneic in the mother, is not rejected during pregnancy. A question of fundamental importance is whether human trophoblast cells possess HL-A or ABO antigens. Evidence so far is conflicting1–4. We present evidence which suggests that blood group A antigens may be present on human trophoblast cells, but at low surface density.
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LOKE, Y., BALLARD, AC. Blood Group A Antigens on Human Trophoblast Cells. Nature 245, 329–330 (1973). https://doi.org/10.1038/245329a0
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DOI: https://doi.org/10.1038/245329a0
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