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Biology of Reproduction, Vol 33, 30-36, Copyright © 1985 by Society for the Study of Reproduction
ARTICLES |
SB Goldbard, SO Gollnick and CM Warner
An enzyme-linked immunosorbent assay (ELISA), which utilized anti-H-2 monoclonal antibody, was used to detect H-2 antigens on preimplantation mouse embryos. All embryonic stages studied, including unfertilized eggs and 1-cell, 2-cell, 8-cell, and blastocyst-stage embryos, showed the presence of H-2 antigens. To prove that the H-2 antigens were not cytophilically adsorbed to the embryos, blastocysts were treated with papain to strip off the H-2 antigens, and then the embryos were further incubated to allow the H-2 antigens to regenerate. After a 3-h incubation time, 60% of the H-2 antigens on the embryos had reappeared, proving that the H-2 antigens were synthesized by the embryos themselves.
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