We focus on the roles of decidual and cumulus oophorus T cells. It was suggested that Th1-type cytokines (IFN-gamma and TNF-beta), which promote allograft rejection, may compromise pregnancy, whereas the Th2-type cytokines (IL-4, IL-5, IL-10) inhibiting the Th1 responses promote allograft tolerance and therefore may improve fetal survival. We found that T cells' leukemia inhibitory factor (LIF), M-CSF, IL-4 and IL-10 production at the fetomaternal interface could contribute to the maintenance of pregnancy. Interestingly, we did not find an increased production of IFN-gamma by decidual T cells during spontaneous abortion, as expected. We detected T cells in the cumulus oophorus, which surrounds the oocyte during ovulation and the egg before implantation. Cumulus oophorus T cells produce higher levels of IL-4 and LIF than the T cells of peripheral blood or the ovary. We can only speculate what the factors present in the microenvironment of the T cells are that could be responsible for the cytokine profile of decidual and cumulus oophorus T cells. Hormones present in the decidua and in the cumulus oophorus could be the first candidates. In particular, progesterone is a potent inducer of production of Th2-type cytokines, LIF and M-CSF. Other candidates could be molecules produced by the trophoblast or the embryo.

Role of T-cell cytokines in decidua and in cumulus oophorus during pregnancy / M.P PICCINNI. - In: GYNECOLOGIC AND OBSTETRIC INVESTIGATION. - ISSN 0378-7346. - STAMPA. - 64:(2007), pp. 144-148.

Role of T-cell cytokines in decidua and in cumulus oophorus during pregnancy.

PICCINNI, MARIE-PIERRE
2007

Abstract

We focus on the roles of decidual and cumulus oophorus T cells. It was suggested that Th1-type cytokines (IFN-gamma and TNF-beta), which promote allograft rejection, may compromise pregnancy, whereas the Th2-type cytokines (IL-4, IL-5, IL-10) inhibiting the Th1 responses promote allograft tolerance and therefore may improve fetal survival. We found that T cells' leukemia inhibitory factor (LIF), M-CSF, IL-4 and IL-10 production at the fetomaternal interface could contribute to the maintenance of pregnancy. Interestingly, we did not find an increased production of IFN-gamma by decidual T cells during spontaneous abortion, as expected. We detected T cells in the cumulus oophorus, which surrounds the oocyte during ovulation and the egg before implantation. Cumulus oophorus T cells produce higher levels of IL-4 and LIF than the T cells of peripheral blood or the ovary. We can only speculate what the factors present in the microenvironment of the T cells are that could be responsible for the cytokine profile of decidual and cumulus oophorus T cells. Hormones present in the decidua and in the cumulus oophorus could be the first candidates. In particular, progesterone is a potent inducer of production of Th2-type cytokines, LIF and M-CSF. Other candidates could be molecules produced by the trophoblast or the embryo.
2007
64
144
148
M.P PICCINNI
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/255012
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