Document Detail

Cells isolated from umbilical cord tissue rescue photoreceptors and visual functions in a rodent model of retinal disease.
MedLine Citation:
PMID:  17053209     Owner:  NLM     Status:  MEDLINE    
Progressive photoreceptor degeneration resulting from genetic and other factors is a leading and largely untreatable cause of blindness worldwide. The object of this study was to find a cell type that is effective in slowing the progress of such degeneration in an animal model of human retinal disease, is safe, and could be generated in sufficient numbers for clinical application. We have compared efficacy of four human-derived cell types in preserving photoreceptor integrity and visual functions after injection into the subretinal space of the Royal College of Surgeons rat early in the progress of degeneration. Umbilical tissue-derived cells, placenta-derived cells, and mesenchymal stem cells were studied; dermal fibroblasts served as cell controls. At various ages up to 100 days, electroretinogram responses, spatial acuity, and luminance threshold were measured. Both umbilical-derived and mesenchymal cells significantly reduced the degree of functional deterioration in each test. The effect of placental cells was not much better than controls. Umbilical tissue-derived cells gave large areas of photoreceptor rescue; mesenchymal stem cells gave only localized rescue. Fibroblasts gave sham levels of rescue. Donor cells were confined to the subretinal space. There was no evidence of cell differentiation into neurons, of tumor formation or other untoward pathology. Since the umbilical tissue-derived cells demonstrated the best photoreceptor rescue and, unlike mesenchymal stem cells, were capable of sustained population doublings without karyotypic changes, it is proposed that they may provide utility as a cell source for the treatment of retinal degenerative diseases such as retinitis pigmentosa.
Raymond D Lund; Shaomei Wang; Bin Lu; Sergej Girman; Toby Holmes; Yves Sauvé; Darin J Messina; Ian R Harris; Anthony J Kihm; Alexander M Harmon; Feng-Yi Chin; Anna Gosiewska; Sanjay K Mistry
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-10-19
Journal Detail:
Title:  Stem cells (Dayton, Ohio)     Volume:  25     ISSN:  1066-5099     ISO Abbreviation:  Stem Cells     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-03-02     Completed Date:  2007-05-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9304532     Medline TA:  Stem Cells     Country:  United States    
Other Details:
Languages:  eng     Pagination:  602-11     Citation Subset:  IM    
Moran Eye Center, University of Utah Health Science Center, Salt Lake City, Utah, USA.
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MeSH Terms
Cell Culture Techniques
Disease Models, Animal
Embryonic Stem Cells / cytology*
Enzyme-Linked Immunosorbent Assay
Flow Cytometry
Functional Laterality
Placenta / cytology
Retinal Diseases / therapy*
Skin Transplantation / physiology*
Stem Cell Transplantation*
Transplantation, Heterologous
Treatment Outcome
Umbilical Cord / cytology
Vision, Ocular / physiology*

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