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Endometriosis in reproductive immunology
Zdenka Ulcová-Gallová1, Vladimír Bouse, Ladislav Svábek
1Department of Obstetrics and Gynecology, Charles University and Faculty Hospital, Pilsen, Czech Republic. ulcova@fnplzen.cz
Summary
Women with early-stage endometriosis show increased autoantibodies, suggesting an autoimmune component. This finding may impact fertility treatments like in vitro fertilization.
Area of Science:
- Reproductive immunology
- Autoimmune disorders
- Gynecological research
Background:
- Endometriosis is hypothesized to have autoimmune origins.
- Understanding the prevalence of autoantibodies in endometriosis is crucial.
Purpose of the Study:
- To investigate the prevalence of autoantibodies against reproductive antigens in women with endometriosis.
- To compare autoantibody levels in women with different stages of endometriosis and healthy controls.
Main Methods:
- Serum and peritoneal fluid from 261 stage I-II, 62 stage III-IV endometriosis patients, and 101 controls were analyzed.
- Enzyme-linked immunosorbent assay (ELISA) detected seven antiphospholipid antibodies (aPLs) and antizona pellucida antibodies (aZP).
- Sperm antibody levels were assessed using passive haemagglutination and other immunoassay techniques.
Main Results:
- Women with stage I-II endometriosis exhibited higher serum and peritoneal fluid levels of antiphospholipid antibodies against inositol, cardiolipin, ethanolamine, and beta2-glycoprotein I.
- Forty percent of endometriosis patients tested positive for antizona pellucida antibodies.
Conclusions:
- Early-stage endometriosis (I-II) is associated with a greater presence of autoantibodies compared to advanced stages (III-IV).
- These findings suggest higher immunological activity in early-stage endometriosis.
- The results may hold significance for future assisted reproductive technologies, including in vitro fertilization and embryo transfer.