Article ; Online: Impaired immunomodulatory effects of seminal plasma may play a role in unexplained recurrent pregnancy loss: Results of an in vitro study.
Journal of reproductive immunology
2022 Volume 151, Page(s) 103500
Abstract: Background: Seminal plasma contains signaling molecules capable of modulating the maternal immune environment to support implantation and pregnancy. Prior studies indicated that seminal plasma induces changes in gene transcription of maternal immune ... ...
Abstract | Background: Seminal plasma contains signaling molecules capable of modulating the maternal immune environment to support implantation and pregnancy. Prior studies indicated that seminal plasma induces changes in gene transcription of maternal immune cells. Reduced immune suppressive capacity may lead to pregnancy loss. The aim of this study was to investigate the immunomodulating effects of seminal plasma on T cells and monocytes in the context of recurrent pregnancy loss (RPL). Methods: Female T cells and monocytes were incubated with seminal plasma of 20 males in unexplained RPL couples (RPL males) and of 11 males whose partners had ongoing pregnancies (control males). The effect of seminal plasma on messenger RNA (mRNA) expression of immune cells was measured. Levels of mRNA expression were related to key signaling molecules present in the seminal plasma. Agglomerative hierarchical cluster analysis was performed on seminal plasma expression profiles and on mRNA expression profiles. Results: Expression of CD25 and anti-inflammatory IL-10 by female T cells was significantly lower after stimulation with seminal plasma of RPL males compared to control males. Female monocytes treated with seminal plasma of RPL males showed an immune activation signature of relatively elevated HLA-DR expression. Expression of these T cell and monocyte components was particularly correlated with the amounts of TGF-β and VEGF in the seminal plasma. Conclusion: Our findings indicate that seminal plasma has immunomodulating properties on female immune cells compatible with the induction of a more regulatory phenotype, which may be impaired in cases of unexplained RPL. |
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MeSH term(s) | Abortion, Habitual ; Female ; Humans ; Immunomodulation ; Male ; Pregnancy ; RNA, Messenger/metabolism ; Semen ; T-Lymphocytes/metabolism |
Chemical Substances | RNA, Messenger |
Language | English |
Publishing date | 2022-02-19 |
Publishing country | Ireland |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 424421-7 |
ISSN | 1872-7603 ; 0165-0378 |
ISSN (online) | 1872-7603 |
ISSN | 0165-0378 |
DOI | 10.1016/j.jri.2022.103500 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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