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Expression and localization of Cyclin D1/Nanog and NF-κB/Bax protein in dysplastic testicles of mice
Penggang Liu1, Xiaoxiang Pan2, Luxian Wu2
1College of Veterinary Medicine, YangZhou University, Yangzhou, Jiangsu 22500, China; College of Animal Science and Technology, Tarim University, Alar, Xinjiang 843300, China.
Abstract:
Testicular dysplasia significantly impairs male reproductive capacity. This study investigated the expression of Cyclin D1/Nanog and NF-κB/Bax in dysplastic testes of mice using histological staining, Western blotting, and immunohistochemistry. The results showed that Nanog and Bax expression were significantly higher in dysplastic testicular tissue than in normal tissue (P < 0.01). Cyclin D1 protein expression was higher in normal testis tissue than in dysplastic testis (P < 0.01). NF-κB was highly expressed in cryptorchid and normal testis with no significant difference (P > 0.05). Immunolocalization revealed that Nanog, NF-κB, and Bax were expressed in the cytoplasm of Leydig and spermatogenic cells. Cyclin D1 primarily expressed in the nucleus of Sertoli cells. These findings suggest that altered expression of Nanog, Cyclin D1, and Bax may contribute to testicular dysplasia. This study provides a scientific foundation for detecting testicular dysplasia and selecting appropriate animal models, ultimately informing strategies to improve male reproductive health.
Insights
Altered expression of Nanog, Cyclin D1, and Bax proteins are linked to testicular dysplasia in mice, impacting male fertility. These findings aid in identifying testicular dysfunction and improving reproductive health strategies.
Area of Science:
- Reproductive Biology
- Cellular Biology
- Molecular Biology
Background:
- Testicular dysplasia is a condition that significantly compromises male reproductive capacity.
- Understanding the molecular mechanisms underlying testicular dysplasia is crucial for developing diagnostic and therapeutic strategies.
Purpose of the Study:
- To investigate the expression patterns of Cyclin D1, Nanog, NF-κB, and Bax in a mouse model of testicular dysplasia.
- To elucidate the potential roles of these proteins in the pathogenesis of testicular dysplasia and its impact on male fertility.
Main Methods:
- Histological staining, Western blotting, and immunohistochemistry were employed to analyze protein expression in normal and dysplastic mouse testes.
- Immunolocalization techniques were used to determine the cellular localization of the studied proteins.
Main Results:
- Nanog and Bax expression were significantly elevated in dysplastic testicular tissue compared to normal tissue (P < 0.01).
- Cyclin D1 protein expression was significantly lower in dysplastic testes than in normal testes (P < 0.01).
- NF-κB showed high expression in both normal and cryptorchid testes without significant differences; Nanog, NF-κB, and Bax were localized in the cytoplasm, while Cyclin D1 was found in the nucleus of Sertoli cells.
Conclusions:
- Altered expression of Nanog, Cyclin D1, and Bax are implicated in the development of testicular dysplasia.
- The study provides a basis for improved detection of testicular dysplasia and selection of relevant animal models.
- Findings contribute to advancing strategies for enhancing male reproductive health.
