Regulation of antigen expression on the placenta

A unique type of immunosuppression

A. Kanbour, H. N. Ho, D. Misra, T. Macpherson, H. W. Kunz, T. J. Gill

Research output: Contribution to journalArticle

Abstract

The broadly shared pregnancy-associated (Pa) MHC class I antigen that elicits a nondestructive antibody response in the mother during normal pregnancy is located on the same cells (basophilic trophoblast) that carry the classic class I allele-specific antigens (RT1.Aa). These cells express the Pa antigen on the cell membrane as well as in their cytoplasm, whereas the classic class I allele-type-specific antigen (RT1.Aa) is expressed only in the cytoplasm of the basophilic trophoblast. The absence of antigenic expression on the cell membrane prevents the maternal recognition of these antigens. Therefore, selective regulation of antigenic expression on the trophoblastic cell membrane explains the escape of the placenta from the maternal immune destruction during normal pregnancy. A similar regulation mechanism may occur in neoplastic tissue, thus preventing their immune destruction by the host.

Original languageEnglish
Pages (from-to)323-324
Number of pages2
JournalTransplantation Proceedings
Volume20
Issue number1 SUPPL. 1
Publication statusPublished - Jan 1 1988
Externally publishedYes

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Immunosuppression
Placenta
Antigens
Pregnancy
Cell Membrane
Trophoblasts
Cytoplasm
Alleles
Mothers
Histocompatibility Antigens Class I
Antibody Formation

ASJC Scopus subject areas

  • Surgery
  • Transplantation

Cite this

Kanbour, A., Ho, H. N., Misra, D., Macpherson, T., Kunz, H. W., & Gill, T. J. (1988). Regulation of antigen expression on the placenta: A unique type of immunosuppression. Transplantation Proceedings, 20(1 SUPPL. 1), 323-324.

Regulation of antigen expression on the placenta : A unique type of immunosuppression. / Kanbour, A.; Ho, H. N.; Misra, D.; Macpherson, T.; Kunz, H. W.; Gill, T. J.

In: Transplantation Proceedings, Vol. 20, No. 1 SUPPL. 1, 01.01.1988, p. 323-324.

Research output: Contribution to journalArticle

Kanbour, A, Ho, HN, Misra, D, Macpherson, T, Kunz, HW & Gill, TJ 1988, 'Regulation of antigen expression on the placenta: A unique type of immunosuppression', Transplantation Proceedings, vol. 20, no. 1 SUPPL. 1, pp. 323-324.
Kanbour A, Ho HN, Misra D, Macpherson T, Kunz HW, Gill TJ. Regulation of antigen expression on the placenta: A unique type of immunosuppression. Transplantation Proceedings. 1988 Jan 1;20(1 SUPPL. 1):323-324.
Kanbour, A. ; Ho, H. N. ; Misra, D. ; Macpherson, T. ; Kunz, H. W. ; Gill, T. J. / Regulation of antigen expression on the placenta : A unique type of immunosuppression. In: Transplantation Proceedings. 1988 ; Vol. 20, No. 1 SUPPL. 1. pp. 323-324.
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