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Titre du Document
Correlation between oral sex and a low incidence of preeclampsia : a role for soluble HLA in seminal fluid?
Auteur(s)
KOELMAN C. A. ; COUMANS A. B. C. ; NIJMAN H. W. ; ...
Corporation(s) du ou des auteurs
Japan Society for Immunology of Reproduction (JSIR) JPN (Commanditaire)
Résumé
The involvement of immune mechanisms in the aetiology of preeclampsia is often suggested. Normal pregnancy is thought to be associated with a state of tolerance to the foreign antigens of the fetus, whereas in preeclamptic women this immunological tolerance might be hampered. The present study shows that oral sex and swallowing sperm is correlated with a diminished occurrence of preeclampsia which fits in the existing idea that a paternal factor is involved in the occurrence of preeclampsia. Because pregnancy has many similarities with transplantation, we hypothesize that induction of allogeneic tolerance to the paternal HLA molecules of the fetus may be crucial. Recent data suggest that exposure, and especially oral exposure to soluble HLA (sHLA) or HLA derived peptides can lead to transplantation tolerance. Similarly, sHLA antigens, that are present in the seminal plasma, might cause tolerance in the mother to paternal antigens. In order to test whether this indeed may be the case, we investigated whether sHLA antigens are present in seminal plasma. Using a specific ELISA we detected sHLA class I molecules in seminal plasma. The level varied between individuals and was related to the level in plasma. Further studies showed that these sHLA class I molecules included classical HLA class I alleles, such as sHLA-A2, -B7, -B51, -B35 and sHLA-A9. Preliminary data show lower levels of sHLA in seminal plasma in the preeclampsia group, although not significantly different from the c
Editeur
Elsevier Science
Type du document
Conférence : Annual Meeting of Japan Society for Immunology of Reproduction (JSIR), 14, Tokyo, JPN, 1999-12-17
Identifiant
PMID : 10706945 ISSN : 0165-0378 CODEN : JRIMDR
Source
Journal of reproductive immunology A. 2000, vol. 46, n° 2, pp. 155-166 [bibl. : 1 p.3/4]
Langue
Anglais
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