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Neural Progenitor Cells Derived From the Adult Rat Subventricular Zone: Characterization and Transplantation

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Abstract:

In order to fully characterize and determine the therapeutic potential of adult neural progenitor cells (NPCs), it is important to be able to isolate and study NPCs from animals such as rats, in which there are existing models of brain injury and disease. The focus of this study was to characterize the cultivation, differentiation, and transplantation of adult rat NPCs isolated from the subventricular zone of the lateral ventricles. We examined strategies for cell purification using a Percoll density gradient, and cell expansion using a range of maintenance medium and plating densities. Purification by Percoll gradient enriched a population of cells expressing nestin and SOX2, but resulted in a significant reduction in neurosphere generation. Culturing adult rat NPCs in Neurobasal-A media and plating at 200,000 cell/ml resulted in a higher percentage of cells surviving to generate neurospheres compared to culture in DMEM/F12 or NS-A media. On induction of differentiation, adult rat NPCs were capable of generating neurons, astrocytes, and oligodendrocytes in vitro that survived for up to 8 weeks, demonstrating multipotentiality of these cells. In addition, a population of cells continued to proliferate during the initial phase of differentiation, suggesting the presence of two populations of NPCs during differentiation. Cultured adult rat NPCs also survived and differentiated into astrocytes 6 weeks after transplantation into the striatum of the normal adult rat brain. In conclusion, we have optimized techniques that allow for the routine isolation, culture, and transplantation of multipotent NPCs derived from the adult rat SVZ.

Keywords: Cultivation; Differentiation; Neural progenitor cells; Subventricular zone; Transplantation

Document Type: Research Article

DOI: http://dx.doi.org/10.3727/000000007783465253

Affiliations: Department of Pharmacology and Clinical Pharmacology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand

Publication date: August 1, 2007

More about this publication?
  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.
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