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Class I Antigens of the Major Histocompatibility Complex on Cytotrophoblast of the Human Placental Basal Plate

Class I Antigens of the Major Histocompatibility Complex on Cytotrophoblast of the Human... ABSTRACT: The lack of class I antigens of the major histocompatibility complex (MHC) on syncytiotropho‐blast has been proposed as an explanation for the survival of the allogeneic fetus. These antigens, however, have recently been detected on nonvillous trophoblastic columns of the early human placenta. By using a combination of immunofluorescence techniques to identify trophoblast, we have studied transplantation antigens of the cytotrophoblastic shell present in the basal plate of normal full‐term human placentae. With the use of two different monoclonal antibodies to a common determinant of HLA (clones W6/32 and 61D2), it was shown that this subset of trophoblast does express class 1 MHC antigens. However, while these cells reacted uniformly with W6/32, only rare reactivity with 61D2 was found. Reactivity of polyclonal antisera to β‐mi croglobulin correlated with that seen using W6/32. These results are similar to those recently observed in a subset of trophoblast of the amniochorion to which the term “metatrophoblast” has been given. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Reproductive Immunology Wiley

Class I Antigens of the Major Histocompatibility Complex on Cytotrophoblast of the Human Placental Basal Plate

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References (35)

Publisher
Wiley
Copyright
Copyright © 1984 Wiley Subscription Services
ISSN
0271-7352
eISSN
1600-0897
DOI
10.1111/j.1600-0897.1984.tb00132.x
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT: The lack of class I antigens of the major histocompatibility complex (MHC) on syncytiotropho‐blast has been proposed as an explanation for the survival of the allogeneic fetus. These antigens, however, have recently been detected on nonvillous trophoblastic columns of the early human placenta. By using a combination of immunofluorescence techniques to identify trophoblast, we have studied transplantation antigens of the cytotrophoblastic shell present in the basal plate of normal full‐term human placentae. With the use of two different monoclonal antibodies to a common determinant of HLA (clones W6/32 and 61D2), it was shown that this subset of trophoblast does express class 1 MHC antigens. However, while these cells reacted uniformly with W6/32, only rare reactivity with 61D2 was found. Reactivity of polyclonal antisera to β‐mi croglobulin correlated with that seen using W6/32. These results are similar to those recently observed in a subset of trophoblast of the amniochorion to which the term “metatrophoblast” has been given.

Journal

American Journal of Reproductive ImmunologyWiley

Published: Jan 1, 1984

Keywords: ; ; ;

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