Document Detail


Matrigel: a complex protein mixture required for optimal growth of cell culture.
MedLine Citation:
PMID:  20162561     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Numerous cell types require a surface for attachment to grow and proliferate. Certain cells, particularly primary and stem cells, necessitate the use of specialized growth matrices along with specific culture media conditions to maintain the cells in an undifferentiated state. A gelatinous protein mixture derived from mouse tumor cells and commercialized as Matrigel is commonly used as a basement membrane matrix for stem cells because it retains the stem cells in an undifferentiated state. However, Matrigel is not a well-defined matrix, and therefore can produce a source of variability in experimental results. In this study, we present an in-depth proteomic analysis of Matrigel using a dynamic iterative exclusion method coupled with fractionation protocols that involve ammonium sulfate precipitation, size exclusion chromatography, and one-dimensional SDS-PAGE. The ability to identify the low mass and abundance components of Matrigel illustrates the utility of this method for the analysis of the extracellular matrix, as well as the complexity of the matrix itself.
Authors:
Chris S Hughes; Lynne M Postovit; Gilles A Lajoie
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Proteomics     Volume:  10     ISSN:  1615-9861     ISO Abbreviation:  Proteomics     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-03     Completed Date:  2010-09-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101092707     Medline TA:  Proteomics     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1886-90     Citation Subset:  IM    
Affiliation:
Don Rix Protein Identification Facility, Department of Biochemistry, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.
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MeSH Terms
Descriptor/Qualifier:
Collagen / analysis*
Drug Combinations
Laminin / analysis*
Proteoglycans / analysis*
Proteomics / methods*
Chemical
Reg. No./Substance:
0/Drug Combinations; 0/Laminin; 0/Proteoglycans; 119978-18-6/matrigel; 9007-34-5/Collagen

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