Serum-Free Medium Provides a Clinically Relevant Method to Increase Olfactory Ensheathing Cell Numbers in Olfactory Mucosa Cell Culture
Abstract:There is much evidence to suggest that transplanted olfactory ensheathing cells may ameliorate the functional deficits associated with injuries to the nervous system, especially the spinal cord. For clinical implementation of this strategy it will be necessary to derive large numbers of these cells from an accessible and, preferably, autologous source, implying that olfactory mucosa would be ideal. Although olfactory ensheathing cells can be derived from olfactory mucosa, in routine culture conditions the proportion of these cells is unacceptably low for clinical purposes. This study compared the effect of culturing dissociated olfactory bulb and olfactory mucosa in two different media: one containing serum and one serum free. The results indicate that olfactory ensheathing cell proportion, and absolute cell numbers, is greatly increased in serum-free conditions. Further analysis suggests that serum-free medium has a differential effect on contaminating fibronectin-positive and p75-positive cells from olfactory bulb and olfactory mucosa. This study demonstrates that serum-free culture conditions provide a simple and useful means of deriving a sufficient number of olfactory ensheathing cells for transplantation and reveals a difference in biological behavior of the cells contained within olfactory bulb and olfactory mucosa.
Document Type: Research Article
Affiliations: 1: Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK, Laboratories of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan 2: Laboratories of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan 3: Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK 4: Laboratories of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo 113-8657, Japan 5: Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK, Cambridge Centre for Brain Repair, University of Cambridge, Cambridge CB2 2PY, UK
Publication date: October 1, 2007
- 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.