Aim: To study the effect of intratesticular administration of ethane-1,2-dimethylsulphonate (EDS) which has been extensively used to selectively destroy Leydig cells in rats and study the role of gonadotropin in regulation of differentiation of Leydig cells (LC) in the adult male bonnet monkey.
Methods And Results: In vitro studies with cultured interstitial cells isolated from monkey testis revealed an inhibitory effect of EDS on LC as assessed by decrease in testosterone production. Intratesticular administration of EDS (5, 10, 20, 50 mg/testis) resulted in a dose-dependent rapid decrease in serum testosterone levels, with a 65% decrease with 5 mg of EDS by the 3rd day, which returned to control levels by the 45th day. EDS treatment resulted in a significant decrease in testicular testosterone. In addition a significant decrease in [125I]hCG binding and phenylesterase activity in the interstitial cells was noticed. Histological analysis of the testes on the 5th day after administration of EDS revealed an interstitium devoid of LC indicating the destructive action of EDS.
Conclusion: The monkey LC are sensitive to destructive action of EDS.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Efficient differentiation of human iPSCs into Leydig-like cells capable of long-term stable secretion of testosterone.
Stem Cell Reports
January 2025
Division of Stem Cell Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan; Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe, Japan; Center for Human Resource Development for Regenerative Medicine, Kobe University Hospital, Kobe, Japan; Division of Signal Pathways, Biosignal Research Center, Kobe University, Kobe, Japan. Electronic address:
Late-onset hypogonadism (LOH) syndrome is characterized by age-related testosterone deficiency and negatively affects the quality of life of older men. A promising therapeutic approach for LOH syndrome is transplantation of testosterone-producing Leydig-like cells (LLCs) derived from human induced pluripotent stem cells (hiPSCs). However, previous studies have encountered obstacles, such as limited cell longevity, insufficient testosterone production, and inefficiency of differentiation.
View Article and Find Full Text PDFA new Leydig cell-exclusive Cre line allows lineage tracing of both fetal and adult Leydig cell populations in the mouse.
Endocrinology
January 2025
Reproduction, Mother and Child Health, Centre de recherche du centre hospitalier universitaire de Québec - Université Laval, Québec City, Québec, Canada, G1V 4G2.
Leydig cells produce hormones that are required for male development, fertility, and health. Two Leydig cell populations produce these hormones but at different times during development: fetal Leydig cells which are active during fetal life and adult Leydig cells that are functional postnatally. Historically, our ability to understand the origin and function of Leydig cells has been made difficult by the lack of genetic models to exclusively target these cells.
View Article and Find Full Text PDFDiscovery of phloridzin as a new antagonist for Di(2-ethylhexyl) phthalate-induced male reproductive toxicity based on the adverse outcome pathway network and drug-target gene set enrichment analysis.
Ecotoxicol Environ Saf
January 2025
Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China. Electronic address:
Di(2-ethylhexyl) phthalate (DEHP) is a widespread ubiquitous phthalate environmental contaminant. The male reproductive toxicity (MRT) from exposure to DEHP and its main metabolite, mono(2-ethylhexyl) phthalate (MEHP), has been well documented. Fully elucidating its toxic mechanism and discovering effective antagonists are desirable means to reduce the health risks of DEHP.
View Article and Find Full Text PDFEffects of melatonin on the mitogen-activated protein kinase signaling genes in hypoxic Leydig cells.
Vet Res Forum
December 2024
Cancer and Immunology Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Leydig cells play a crucial role in male reproductive physiology, and their dysfunction is often associated with male infertility. Hypoxia negatively affects the structure and function of Leydig cells. This study aimed to investigate the impact of melatonin on the c-Jun N-terminal kinase (Jnk), P38, and extra-cellular signal-regulated kinases 1 and 2 (Erk1/2) mitogen-activated protein kinase (MAPK) signaling pathways in TM3 mouse Leydig cells under hypoxia induced by cobalt (II) chloride (CoCl).
View Article and Find Full Text PDFIn Utero Perfluorodecanoic Acid Exposure Causes Fetal Leydig Cell Dysfunction via Endoplasmic Reticulum Stress-Mediated Lipid Composition Alteration.
Chem Res Toxicol
January 2025
Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
Perfluorodecanoic acid (PFDA), a C10 fluorine-containing compound, is used widely and found to be present anywhere. However, whether it has reproductive toxicity for fetal Leydig cells and the underlying mechanisms remain unknown. PFDA was investigated for its effects on fetal Leydig cells (FLCs) following exposure to 0, 1, 2.
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!