[Morphophysiological characteristics of the development and involution of mammary gland structures in murine radiation chimeras].

A study of development and involution of the mammary glands was carried out in syngeneic and xenogeneic mouse radiation chaimeras at different times after transplantation of the bone marrow cells, before and after restoration of the lymphoid tissue. The data obtained suggest the important role of the lymphoid (immune) component in the processes of development and involution of the mammary gland structures, as well the necessity of genetic homology of the hemopoietic elements and the mammary gland cells.