Document Detail

Phenol Red Inhibits Chondrogenic Differentiation and Affects Osteogenic Differentiation of Human Mesenchymal Stem Cells in Vitro.
MedLine Citation:
PMID:  23135703     Owner:  NLM     Status:  Publisher    
The purpose with this study was to investigate the effect of phenol red (PR) on chondrogenic and osteogenic differentiation of human mesenchymal stem cells (hMSCs). hMSCs were differentiated into chondrogenic and osteogenic directions in DMEM with and without PR for 2, 7, 14, 21, and 28 days. Gene expression of chondrogenic and osteogenic markers were analyzed by RT-qPCR. The presence of proteoglycans was visualized histologically. Osteogenic matrix deposition and mineralization were examined measuring the alkaline phophatase activity and calcium deposition. During chondrogenic differentiation PR decreased sox9, collagen type 2, aggrecan on day 14 and 21 (P < 0.05), and proteoglycan synthesis on day 21 and 28. Collagen type 10 was decreased on day 21 (P < 0.05). During osteogenic differentiation PR increased alkaline phosphatase on day 7 while decreased on day 21 (P < 0.05). PR increased collagen type 1 on day 7, 14, and day 21 (P < 0.05). The alkaline phosphatase activity was increased after 2, 7, and 14 days (P < 0.05). The deposition of calcium was decreased on day 21 (P < 0.05). Our results indicate that PR should be removed from the culture media when differentiating hMSCs into chondrogenic and osteogenic directions due to the effects on these differentiation pathways.
Helle Lysdahl; Anette Baatrup; Anna Bay Nielsen; Casper Bindzus Foldager; Cody Bünger
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-8
Journal Detail:
Title:  Stem cell reviews     Volume:  -     ISSN:  1558-6804     ISO Abbreviation:  Stem Cell Rev     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101255952     Medline TA:  Stem Cell Rev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Orthopaedic Research Laboratory, Aarhus University Hospital, Nørrebrogade 44, building 1A, 8000, Aarhus C, Denmark,
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