Author(s): Haynes MK, Jackson LG, Tuan RS, Shepley KJ, Smith JB, Haynes MK, Jackson LG, Tuan RS, Shepley KJ, Smith JB
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Abstract Growth factor cytokines must play important roles in placental growth and differentiation. We used cDNA-mRNA in situ hybridization to examine whether human first trimester chorionic villi could produce these substances locally. IL-1 beta and IL-4 mRNA was found in both trophoblast layers, whereas CSF-1 and TNF alpha were found mostly in syncytiotrophoblast with much less localization to cytotrophoblast areas. IFN-gamma message was exclusively found in the cytotrophoblast. Immunohistochemical analysis confirmed that cytokines are produced by placental tissue, and the patterns of expression correlated well with the data obtained by in situ hybridization. These data are discussed regarding possible roles of cytokines in regulation of MHC antigen expression by trophoblasts and immunomodulation of decidual lymphocytes.
This article was published in Cell Immunol
and referenced in Journal of Immunobiology