Related Experiment Videos
Prostaglandin D2 and reproduction.
Shigeru Saito1, Hiroshi Tsuda, Toshihiko Michimata
1Department of Obstetrics and Gynecology, Toyama Medical and Pharmaceutical University, Toyama-shi, Japan. s30saito@ms.toyama-mpu.ac.jp
Summary
Prostaglandin D2 (PGD2) plays key roles in reproduction, influencing male and female fertility. PGD2 signaling via DP and CRTH2 receptors may maintain pregnancy by modulating immune cells and dendritic cell migration at the materno-fetal interface.
Area of Science:
- Reproductive immunology
- Molecular reproductive biology
Background:
- Prostaglandin D2 (PGD2) is a lipid mediator with diverse physiological functions, including roles in reproduction.
- Two main PGD2 synthases, lipocalin-type and hematopoietic, are implicated in male and female reproductive processes, respectively.
Purpose of the Study:
- To review recent findings on the role of PGD2 in reproduction.
- To explore the mechanisms of PGD2 action through its dual receptor systems, DP and CRTH2, in reproductive contexts.
Main Methods:
- Literature review of recent studies on PGD2 and reproduction.
- Analysis of PGD2's involvement in immune cell recruitment and function at the materno-fetal interface.
- Examination of PGD2's effect on dendritic cell migration and antigen presentation.
Main Results:
- PGD2 synthase distribution suggests roles in both male (lipocalin-type) and female (hematopoietic) reproduction.
- CRTH2, a PGD2 chemo-attractant receptor, is a marker for T helper type 2 (Th2) and T cytotoxic type 2 (Tc2) cells, which are recruited to the decidua.
- PGD2 inhibits dendritic cell migration via DP, potentially contributing to immune tolerance during pregnancy.
Conclusions:
- PGD2, acting through DP and CRTH2, is likely involved in regulating immune responses crucial for successful pregnancy.
- PGD2 may maintain pregnancy by balancing Th1/Th2 responses and controlling antigen presentation by dendritic cells.