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BMSC to osteoblast - (Feb/23/2007 )

Hi all,

Do anybody have protocol of BMSC isolation and differentiation to osteoblast. what are the best markers studied for osteoblast? i had tried dexamethasone treatment on BM mononoclear cells and observed that cells do undergo change in morphology from round to fibroblats like strongly adherent cells. but i had no marker, so couldnyt prove whether those cells were osteoblast or not.
pls help
regards

-poonamd-

QUOTE (poonamd @ Feb 24 2007, 07:49 AM)
Hi all,

Do anybody have protocol of BMSC isolation and differentiation to osteoblast. what are the best markers studied for osteoblast? i had tried dexamethasone treatment on BM mononoclear cells and observed that cells do undergo change in morphology from round to fibroblats like strongly adherent cells. but i had no marker, so couldnyt prove whether those cells were osteoblast or not.
pls help
regards


Usually, for osteogenic differentiation of bm-msc, we use also beta-glycerophosphate (10 mM) and ascorbic acid (50 ug/ml) and I think that these are critical for a terminal differentiation that could be reveald by matrix deposition (positive to alizarin-s stain) and by some molecular markers. This reference (http://www.ebmonline.org/cgi/content/full/226/6/507) could help you,it's a minirew about msc and diff potential. I think it's hard to phenotipic characterize this kind of cells, i.e. by cytoflow or IF, I've tried with MoAb agaisnt osteopontin without any convincing results.

Hope been helpfull

-XCyto-