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First published online 3 August 2004
doi: 10.1242/jcs.01264

Journal of Cell Science 117, 4289-4299 (2004)
Published by The Company of Biologists 2004
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Research Article

Neurogenesis of Rhesus adipose stromal cells

Soo Kyung Kang1,3, Lorna A. Putnam1, Joni Ylostalo3, Ion Razvan Popescu5, Jason Dufour2, Andrei Belousov5 and Bruce A. Bunnell1,3,4,*

1 Division of Gene Therapy, Tulane National Primate Research Center, Tulane University Health Sciences Center, 18703 Three Rivers Road, Covington, LA 70433, USA
2 Division of Veterinary Medicine, Tulane National Primate Research Center, Tulane University Health Sciences Center, 18703 Three Rivers Road, Covington, LA 70433, USA
3 Center of Gene Therapy, Tulane University, New Orleans, LA 70112, USA
4 Department of Pharmacology, Tulane University Health Sciences Center, Tulane University, New Orleans, LA 70112, USA
5 Department of Cell and Molecular Biology, Tulane University, New Orleans, LA 70112, USA

* Author for correspondence (e-mail: bbunnell{at}tulane.edu)

Accepted 13 April 2004

In this study, we isolated and characterized a population of non-human primate adipose tissue stromal cells (pATSCs) containing multipotent progenitor cells. We show that these pATSCs can differentiate into several mesodermal lineages, as well as neural lineage cells. For neural induction of pATSCs and non-human primate bone marrow stromal cells (pBMSCs), the cells were cultured in Neurobasal (NB) media supplemented with B27, basic fibroblast growth factor (bFGF), brain-derived neurotrophic factor (BDNF) and epidermal growth factor (EGF). After 4 days in culture, the pATSCs form compact, spheroid bodies that ultimately become neurospheres (NS). Free-floating neurospheres undergo extensive differentiation when cultured on PDL-laminin. Our data suggest that the neurogenic potential of pATSCs is markedly higher than that of pBMSCs. We have also performed microarray analysis and characterized the gene expression patterns in undifferentiated pATSCs. The direct comparison of gene expression profiles in undifferentiated pATSCs and pATSC-NS, and delineated specific members of important growth factor, signaling, cell adhesion and transcription factors families. Our data indicate that adipose tissue may be an alternative source of stem cells for therapy of central nervous system (CNS) defects.

Key words: Stem cell, Adipose tissue, Neural differentiation, Neurosphere, Non-human primate, Microarray


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