Placental precursor stem cells require testosterone-free environment to survive
Thursday, October 29, 2009 - 22:49
in Biology & Nature
Trophoblast stem cells (TSCs), cells found in the layer of peripheral embryonic stem cells from which the placenta is formed, are thought to exhibit "immune privilege" that aids cell survivability and is potentially beneficial for cell and gene therapies. Further, the survivability of TSCs has been thought to require the presence of ovarian hormones. However, none of these assumptions has ever been verified. This study, published in the current issue of the journal Cell Transplantation (18:7) - now freely available on-line at http://www.ingentaconnect.com/content/cog/ct - has demonstrated that it is the absence of male hormones, rather than the presence of female hormones, that allows extended transplanted cell survivability.
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