Journal
MOLECULAR AND CELLULAR NEUROSCIENCE
Volume 37, Issue 3, Pages 568-578Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.mcn.2007.12.005
Keywords
mouse; myelin; peripheral nervous system; culture; Schwann cell
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The established protocols for in vitro studies of peripheral nerve myelination with rat embryonic dorsal root ganglia (DRG) and postnatal Schwann cell cocultures do not work with mouse cells. Consequently, the full potential of this model, which would allow to perform cell type-specific, mixed genotype cocultures without crossbreeding the animals, cannot be exploited. We determined the conditions required to promote full myelination in cocultures of prepurified mouse embryonic DRG and neonatal Schwann cells, and present a method which consistently yields 50-200 mature myelin sheaths/culture. Causes for the failure of the existing protocols to yield satisfactory results with mouse cells fell into three categories: the lack of adherent support provided by the substratum, growth factor and hormone deficiencies, and the high serum content of the media. For optimal results, mouse cocultures require a 3-dimensional substratum, a myelination-promoting culture medium containing pituitary extract, N2 supplement and forskolin, and a low serum concentration. (c) 2007 Elsevier Inc. All rights reserved.
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