PMID: 16529318Mar 15, 2006Paper

Heterotopic osteogenesis of autogenous marrow stromal cells on ceramic bovine bone/ hydrogel scaffold

Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery
Dawei HeShibao Li

Abstract

To observe the heterotopic osteogenesis of the autogenous marrow stromal cells (MSCs) on the ceramic bovine bone (CBB)/hydrogel scaffold (HG) and the effects of the recombinant human bone morphogenetic protein-2 (rhBMP-2) and the transforming growth factor beta (TGF-beta) on osteogenesis. The autogenous marrow stromal cells were cultured by the mineralized condition medium (10% FBS, dexamethasone 10 nmol, L-vitamin C 50 mg/L, beta-sodium glycerophosphate DMEM culture medium 10 mmol). At 5 days, the MSCs differentiation was observed by Type I collagen, the Mend calcium-cobalt staining, and the Von-Kossa staining. The cell suspension of 5 x 10(6)/ml was obtained. There were three groups: Group A: added in rhBMP-2 (10 microg)-TGF-beta (0.05 microg); Group B: added in TGF-beta (0.05 microg); and Group C (the control group): without the growth factor. Then, the MSCs loading on CBB/HG were embedded in the autogenous subcutaneous area at 4 and 8 weeks, and the osteogenesis was observed by the HE staining and the modified Mallory's trichrome staining, with an image analysis. Type I collagen and the bone morphogenetic synthesis were examined by the immunohistochemistry stains. Most MSCs induced by the mineralized condition medium at 5 d...Continue Reading

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