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Repeated Gonadotropin Administration Suppresses T Cell Development in the Mouse Thymus
Jin Yoon1, Sojung Sun1, Soeun Moon1
1Department of Biohealth Convergence, College of Science and Convergence Technology, Seoul Women's University, Seoul 01797, Korea.
Development & Reproduction
|April 21, 2025
Summary
Repeated gonadotropin use in infertility treatments may harm immune function. Studies show these hormones alter thymus structure and T cell development, impacting immune cell populations.
Area of Science:
- Immunology
- Endocrinology
- Reproductive Medicine
Background:
- Gonadotropins (FSH, hCG) are vital for infertility treatments like IVF-ET.
- Their impact on immune function, especially T cell development, is not well understood.
Purpose of the Study:
- To investigate the effects of repeated pregnant mare serum gonadotropin (PMSG) and hCG administration on thymic T cell development in mice.
Main Methods:
- Histological analysis of thymus structure.
- Quantitative real-time PCR for gene expression.
- Flow cytometry for T cell populations (thymus and spleen).
Main Results:
- PMSG and hCG caused thymus structural changes (blurred cortex-medulla, reduced vascularization).
- Increased adipogenesis genes (PEPCK, aP2, PPARγ) and decreased CD4+CD8+ T cells observed.
- Reduced CD4+ and CD8+ T cells in spleen noted.
Conclusions:
- Repeated gonadotropin exposure may disrupt thymic T cell development and peripheral T cell populations.
- Potential impairment of immune function warrants further investigation into mechanisms and consequences.
