Related Experiment Video
Updated: May 17, 2026
10:41
Germ Cell Transplantation and Testis Tissue Xenografting in Mice
Published on: February 6, 2012
Unilateral cryptorchidism in mice mutant for Ptgds.
Pascal Philibert1, Brigitte Boizet-Bonhoure, Anu Bashamboo
1Département d'Hormonologie, Hôpital Lapeyronie, CHU de Montpellier et Université Montpellier 1, Montpellier, France.
Human Mutation
|October 19, 2012
Summary
Lipocalin-type prostaglandin D(2) synthase deficiency in mice causes cryptorchidism, impacting testicular descent. While PTGDS mutations weren
Area of Science:
- Reproductive biology
- Developmental biology
- Endocrinology
Background:
- Cryptorchidism, or abnormal testicular descent, has an unclear pathophysiology.
- The second phase of testicular descent is crucial for normal development.
Purpose of the Study:
- To investigate the role of prostaglandin D(2) synthase (PGD(2)) in testicular descent.
- To explore the PGD(2) signaling pathway's involvement in cryptorchidism.
Main Methods:
- Utilized Ptgds-deficient mice (heterozygous and homozygous) to study testicular descent.
- Performed histological analysis of gubernaculum and testes in mutant mice.
- Sequenced the PTGDS gene in DNA from children with cryptorchidism.
Main Results:
- Ptgds deficiency in mice led to unilateral cryptorchidism in 16% (heterozygous) and 24% (homozygous) of cases.
- Cryptorchid testes exhibited increased spermatogonia apoptosis and reduced tubule size.
- Gubernacula in newborn mutants showed histological abnormalities and decreased Rxfp2 mRNA expression.
- No PTGDS mutations were found in the studied human cryptorchidism cases.
Conclusions:
- The PGD(2) signaling pathway is implicated in the complex etiology of cryptorchidism.
- Ptgds deficiency disrupts testicular descent and affects testicular histology.
- PTGDS enzyme is identified as a novel factor in the cryptorchidism puzzle, despite no direct mutations found in humans.
