Purpose: We evaluated the morphological effect and alterations in gene expression caused by 1,25-dihydroxyvitamin D treatment in the mouse testis undergoing experimental cryptorchidism and subsequent orchiopexy.
Materials And Methods: The mean modified Johnsen score and testicular weight were estimated after 4 weeks of treatment with a 1,25-dihydroxyvitamin D prodrug. We examined sites of vitamin D receptor and mRNA expression, and 1,25-dihydroxyvitamin D analogue accumulation in the mouse testis. Also, we compared alterations in gene expression in the cryptorchid mouse testis with or without 1,25-dihydroxyvitamin D administration by testis specific cDNA microarray. We confirmed protein synthesis of a candidate among up-regulated genes in primary cultures of Sertoli's cells by Western blotting.
Results: Mean +/- SEM Johnsen score and testicular weight were increased by 1,25-dihydroxyvitamin D treatment but not significantly (6.12 +/- 0.33 vs 5.27 +/- 0.4 and 49.3 +/- 3.8 mg vs 42.6 +/- 5.5, p = 0.13 and 0.065, respectively). Vitamin D receptor and its mRNA were positive in Sertoli's cells. The 1,25-dihydroxyvitamin D analogue accumulated mainly in Sertoli's cells. Of 2,483 testis specific genes 19 showed up-regulation by 1,25-dihydroxyvitamin D treatment. Of these genes the regulator of cellular cholesterol homeostasis Abca1 was expressed mainly in Sertoli's cells and influenced male fertility. In primary cultures of Sertoli's cells the synthesis of Abca1 protein was increased by 1,25-dihydroxyvitamin D treatment but not by follicle-stimulating hormone or testosterone treatment.
Conclusions: We noted that 1,25-dihydroxyvitamin D contributes to spermatogenesis by up-regulating certain specific genes in Sertoli's cells. Testis specific cDNA microarray analysis and vitamin D supplementation may have implications for managing male infertility.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.juro.2008.11.007 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Partial rejuvenation of the spermatogonial stem cell niche after gender-affirming hormone therapy in trans women.
Elife
January 2025
Biology of the Testis (BITE) Laboratory, Genetics, Reproduction and Development (GRAD) Research Group, Vrije Universiteit Brussel, Brussels, Belgium.
Although the impact of gender-affirming hormone therapy (GAHT) on spermatogenesis in trans women has already been studied, data on its precise effects on the testicular environment is poor. Therefore, this study aimed to characterize, through histological and transcriptomic analysis, the spermatogonial stem cell niche of 106 trans women who underwent standardized GAHT, comprising estrogens and cyproterone acetate. A partial dedifferentiation of Sertoli cells was observed, marked by the co-expression of androgen receptor and anti-Müllerian hormone which mirrors the situation in peripubertal boys.
View Article and Find Full Text PDFTranscriptome Analysis Reveals Sertoli Cells Adapting Through Redox and Metabolic Pathways Under Heat Stress in Goats.
Genes (Basel)
December 2024
College of Animal Science and Technology, Sanya Institute of China Agricultural University, Sanya 572025, China.
Background/objectives: Climate change-induced temperature elevations pose significant challenges to livestock reproduction, particularly affecting testicular function in small ruminants. This study investigates the acute heat-stress response in goat Sertoli cells (SCs), aiming to elucidate the molecular mechanisms underlying heat-induced damage to male reproductive tissues.
Methods: SCs were isolated from testes of 4-month-old black goats and exposed to heat stress (44 °C for 2.
Melatonin Improves HO-Induced Oxidative Stress in Sertoli Cells Through Nrf2-Keap1 Signaling Pathway.
Genes (Basel)
November 2024
Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China.
: Oxidative stress in the testicles of male livestock can cause reduced fertility. Melatonin is a natural product with antioxidant effects, but its specific antioxidant mechanism is still unclear. This study used calf testicular Sertoli cells as materials to explore the mechanism by which melatonin alleviates the oxidative stress of Sertoli cells, laying a foundation for improving the fertility of bulls.
View Article and Find Full Text PDFIL20RA Is the Key Factor Contributing to the Stronger Antioxidant Capacity of Rongchang Pig Sertoli Cells.
Antioxidants (Basel)
December 2024
Chongqing Academy of Animal Science, Chongqing 402460, China.
Variations in disease resistance among pig breeds have been extensively documented, with Sertoli cells (SCs) playing a pivotal role in spermatogenesis. Infections can induce oxidative stress, which can lead to damage to these cells. This study aimed to compare the levels of oxidative stress in SCs from Rongchang and Landrace pig breeds following LPS challenge.
View Article and Find Full Text PDFProtective Effects of L-Cysteine Against Cisplatin-Induced Oxidative Stress-Mediated Reproductive Damage.
Antioxidants (Basel)
November 2024
School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan.
Cisplatin (CIS) is a widely used chemotherapeutic agent, but its side effects, such as oxidative stress, inflammation, and apoptosis, often lead to male reproductive damage. Oxidative stress, primarily caused by the excessive generation of reactive oxygen species (ROS), plays a critical role in disrupting testicular homeostasis, resulting in spermatogenic impairment and tissue injury. L-cysteine (CYS), a semi-essential amino acid with potent antioxidant and anti-inflammatory properties, may offer protection against CIS-induced oxidative damage.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!