Document Detail

Improved isolation and expansion of bone marrow mesenchymal stromal cells using a novel marrow filter device.
MedLine Citation:
PMID:  23321326     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AIMS: Mesenchymal stromal cells (MSCs) have been studied as cell therapy to treat a vast array of diseases. In clinical MSC production, the isolated cells must undergo extensive ex vivo expansion to obtain a sufficient dose of MSCs for the investigational treatment. However, extended tissue culture is fraught with potential hazards, including contamination and malignant transformation. Changes of gene expression with prolonged culture may alter the therapeutic potential of the cells. Increasing the recovery of MSCs from the freshly harvested bone marrow allowing for less ex vivo expansion would represent a major advance in MSC therapy.
METHODS: Human bone marrow cells from eight healthy donors were processed using a marrow filter device and, in parallel, using buoyant density centrifugation by two independent investigators. The initial nucleated cell recovery and the final yield, immunophenotype and trilineage differentiation potential of second-passage MSCs were examined.
RESULTS: The marrow filter device generated significantly greater initial cell recovery requiring less investigator time and resulted in approximately 2.5-fold more MSCs after the second passage. The immunophenotype and differentiation potential of MSCs isolated using the two methods were equivalent and consistent with the defining criteria. The two independent investigators generated comparable results.
CONCLUSIONS: This novel filter device is a fast, efficient and reliable system to isolate MSCs and should greatly expedite pre-clinical and clinical investigations of MSC therapy.
Satoru Otsuru; Ted J Hofmann; Timothy S Olson; Massimo Dominici; Edwin M Horwitz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-12-06
Journal Detail:
Title:  Cytotherapy     Volume:  15     ISSN:  1477-2566     ISO Abbreviation:  Cytotherapy     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-16     Completed Date:  2013-09-04     Revised Date:  2014-03-03    
Medline Journal Info:
Nlm Unique ID:  100895309     Medline TA:  Cytotherapy     Country:  England    
Other Details:
Languages:  eng     Pagination:  146-53     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 International Society for Cellular Therapy. Published by Elsevier Inc. All rights reserved.
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MeSH Terms
Bone Marrow Cells / cytology*
Cell Culture Techniques*
Cell Differentiation*
Cell Proliferation
Cell- and Tissue-Based Therapy
Mesenchymal Stem Cell Transplantation
Mesenchymal Stromal Cells / cytology*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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