Bovine colostric transforming growth factor-beta-like peptide that induces growth inhibition and changes in morphology of human osteogenic sarcoma cells (MG-63)
- PMID: 2706687
- DOI: 10.1016/0309-1651(89)90147-1
Bovine colostric transforming growth factor-beta-like peptide that induces growth inhibition and changes in morphology of human osteogenic sarcoma cells (MG-63)
Abstract
TGF-beta like peptide, termed TGF(BC-1), was partially purified from defatted and decaseinated bovine colostrum by a sequence of DEAE-Sephacel chromatography and Sephadex G-50 gel filtration in 1M acetic acid. TGF(BC-1) was distinct from well-known 25K TGF-beta in chemical properties: TGF(BC-1) was sensitive to acid ethanol extraction (Roberts et al., 1980). Its apparent molecular weight ranged from 21k to 11k by gel filtration and it was composed of low MW peptides (15k, 13k, 10k and 7.3k but not 25k) as examined by SDS-PAGE under non-reducing conditions. However, TGF(BC-1) shares some biological properties with the prototype TGF-b. TGF(BC-1) remarkably suppressed growth of osteogenic sarcoma cells (MG-63), and this was intriguingly accompanied by a striking change in morphology.
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