Lymphohematopoietic cytokines in the female reproductive tract.

The past year has seen an avalanche in publications describing the synthesis of lymphohematopoietic cytokines by the uterus and placenta. Dissection of the particular contributions of these factors will require genetic as well as biochemical approaches. The major events of the year therefore, were the identification and creation of mouse mutants that have provided novel insights into the roles of various cells and cytokines during gestation.