Prolactin affects both survival and differentiation of T-cell progenitors.

Abstract

We have analysed the in vitro effects of prolactin on thymocyte development concluding that PRL favours the survival and differentiation of T-cell progenitors. Fetal, adult thymocytes and CD45(+) fetal liver lymphoid progenitors express PRL-R. PRL induces survival, proliferation and differentiation of lymphoid progenitors whereas both an anti-PRL antiserum and an anti-PRL-R mAb block T-cell development accumulating CD25(+)DN (CD4(-)CD8(-)) cells. Furthermore, IL2 rescues the blockade of T-cell development in FTOC treated with anti-PRL antiserum but PRL does not recover cultures treated with an anti-IL2R alpha chain mAb, which drastically blocks the T-cell development. These results support IL2/IL2R mediation of PRL effects on developing thymocytes.

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@article{Carreo2005ProlactinAB, title={Prolactin affects both survival and differentiation of T-cell progenitors.}, author={Paz C Carre{\~n}o and Rosa Saced{\'o}n and Eva Mar{\'i}a Le{\'o}n Jim{\'e}nez and Angeles de Prada Vicente and Agust{\'i}n G Zapata}, journal={Journal of neuroimmunology}, year={2005}, volume={160 1-2}, pages={135-45} }