Testis-derived Sertoli cells have a trophic effect on dopamine neurons and alleviate hemiparkinsonism in rats

Research output: Contribution to journalArticle

Abstract

Neural tissue transplantation has become an alternative treatment for Parkinson's disease (PD) and other neurodegenerative disorders. The clinical use of neural grafts as a source of dopamine for Parkinson's disease patients, although beneficial, is associated with logistical and ethical issues. Thus, alternative graft sources have been explored including polymer-encapsulated cells and nonneural cells (that is, adrenal chromaffin cells) or genetically modified cells that secrete dopamine and/or trophic factors. Although progress has been made, no current alternative graft source has ideal characteristics for transplantation. Emerging evidence suggests the importance of trophic factors in enhancing survival and regeneration of intrinsic dopaminergic neurons. It would be desirable to transplant cells that are readily available, immunologically accepted by the central nervous system and capable of producing dopamine and/or trophic factors. Sertoli cells have been shown to secrete CD-95 ligand and regulatory proteins, as well as trophic, tropic, and immunosuppressive factors that provide the testis, in part, with its "immunoprivileged" status. The present study demonstrated that transplantation of rat testis-derived Sertoli cells into adult rat brains ameliorated behavioral deficits in rats with 6-hydroxydopamine-induced hemiparkinsonism. This was associated with enhanced tyrosine hydroxylase (TH) immunoreactivity in the striatum in the area around the transplanted Sertoli cells. Furthermore, in vitro experiments demonstrated enhanced dopaminergic neuronal survival and outgrowth when embryonic neurons were cultured with medium in which rat Sertoli cells had been grown. Transplantation of Sertoli cells may provide a useful alternative treatment for PD and other neurodegenerative disorders.

Details

Authors
  • P R Sanberg
  • C V Borlongan
  • A I Othberg
  • S Saporta
  • T B Freeman
  • D F Cameron
External organisations
  • University of South Florida
Research areas and keywords

Keywords

  • Animals, Cells, Cultured, Corpus Striatum, Dopamine, Functional Laterality, Male, Neurons, Oxidopamine, Parkinson Disease, Secondary, Rats, Sertoli Cells, Substantia Nigra, Time Factors, Tyrosine 3-Monooxygenase, Journal Article, Research Support, Non-U.S. Gov't
Original languageEnglish
Pages (from-to)1129-32
Number of pages4
JournalNature Medicine
Volume3
Issue number10
Publication statusPublished - 1997 Oct
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes