[Molecular systems in cellular interactions. II: Embryonal implantation in mammals].

In the present paper we consider the molecular mechanisms for cell recognition and cell adhesion on embryo implantation in mammals. In mammalian embryo implantation, the cellular interactions are complex, because several kinds of cells are involved: embryo trophoblast cells interact with several uterine cells and their respective extracellular matrices, participating lactosaminoglycans, integrins, cadherins and galactosyl transferases.