Hormonal control of a carbohydrate epitope involved in implantation in mice

in Reproduction

Summary. Ovariectomy and hormone replacement of mice were used to examine the hormonal control of expression on the uterine surface of a carbohydrate determinant (lacto-N-fucopentaose I, LNF I), involved in the initial interaction between the blastocyst and the endometrial epithelium at implantation. Pseudopregnant mice mated with sterile males were also used to elucidate the impact of embryonic signals on the expression of this antigen on the uterine surface. Two groups of fucosylated structures could be distinguished; one group was predominantly dependent on maternal oestrogen and progesterone, while the other group appeared to be less influenced by the hormonal milieu.

Keywords: implantation; uterus; hormones; carbohydrates; receptors; mouse

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