, Volume 32, Issue 9, pp 1197-1199

Pregnancy specificβ 1 — a product of the syncytiotrophoblast

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Summary

Pregnancy specific β1 (PSβG) has been identified in vitro in trophoblast cultures and in vivo, using transmission electron microscopy, in the syncytiotrophoblast, PSβG may, like other pregnancy proteins, have immunosuppressive properties.

This study was supported by a grant from the Medical Research Council. We thank Dr.D. R. Abramovich for making available the first trimester placentae and MissWanda Emslie for help in the tissue culture studies.