Document Detail


Identification, proliferation, and differentiation of adult Leydig stem cells.
MedLine Citation:
PMID:  22865373     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Leydig cells, the testosterone-producing cells of the adult testis, rarely turn over. However, their elimination with ethane dimethanesulfonate (EDS) is followed by the appearance of new, fully functional adult Leydig cells. The cells that give rise to the new Leydig cells have not been well characterized, and little is known about the mechanism by which they are regulated. We isolated cells expressing platelet-derived growth factor receptor-α, but not 3β-hydroxysteroid dehydrogenase (3β-HSD(neg)) from the testes of EDS-treated adult rats. Depending on conditions, these cells proliferated indefinitely or differentiated and produced testosterone. To localize these cells and to determine the effect of the testicular environment on their function, the seminiferous tubules and testicular interstitium were physically separated and cultured. During the first 72 h in culture, 3β-HSD(neg) cells on the tubule surfaces underwent divisions. Some of these cells later expressed 3β-HSD and produced testosterone. Removal of the newly formed 3β-HSD(pos) cells from the tubule surfaces with EDS, followed by further culture of the stripped tubules, resulted in the reappearance of testosterone-producing cells. These results, taken together, suggest that the precursors for newly formed Leydig cells are stem cells, with many if not all situated on the surfaces of the seminiferous tubules. Although normally quiescent, the stem cells are capable of self-renewal and differentiation. The development of the tubule culture system should provide a valuable in vitro approach to assess the role(s) of niche components on the function of adult Leydig stem cells despite their residing in a complex mammalian tissue.
Authors:
Erin Stanley; Chieh-Yin Lin; Shiying Jin; June Liu; Chantal M Sottas; Renshan Ge; Barry R Zirkin; Haolin Chen
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2012-08-03
Journal Detail:
Title:  Endocrinology     Volume:  153     ISSN:  1945-7170     ISO Abbreviation:  Endocrinology     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-09-24     Completed Date:  2012-12-11     Revised Date:  2014-04-15    
Medline Journal Info:
Nlm Unique ID:  0375040     Medline TA:  Endocrinology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5002-10     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adult Stem Cells / cytology*,  metabolism
Animals
Cell Differentiation / drug effects,  physiology*
Cell Proliferation / drug effects*
Cells, Cultured
Leydig Cells / cytology*,  drug effects,  metabolism
Luteinizing Hormone / pharmacology
Male
Rats
Rats, Inbred BN
Testosterone / biosynthesis
Grant Support
ID/Acronym/Agency:
R01 AG030598/AG/NIA NIH HHS; R01 HD050570/HD/NICHD NIH HHS; R03 AG026721/AG/NIA NIH HHS; R37 AG021092/AG/NIA NIH HHS; R37 AG21092/AG/NIA NIH HHS
Chemical
Reg. No./Substance:
3XMK78S47O/Testosterone; 9002-67-9/Luteinizing Hormone
Comments/Corrections

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