PMID- 10079200 OWN - NLM STAT- MEDLINE DCOM- 19990413 LR - 20131121 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 256 IP - 2 DP - 1999 Mar 16 TI - Bone morphogenetic protein-3b (BMP-3b) gene expression is correlated with differentiation in rat calvarial osteoblasts. PG - 419-24 AB - BMP-3b (also called GDF-10) is a novel BMP-3-related protein recently discovered in rat femur tissue. Gene expression of BMP-3b in osteoblastic cells and its regulation by prolonged culture, BMP-2 and transforming growth factor beta1 (TGF-beta1) were examined. The BMP-3b gene was highly expressed in rat osteoblasts obtained from calvarial bones but not in the osteoblastic cell lines (MC3T3-E1 and U2-OS). BMP-3b mRNA increased during osteoblastic differentiation in prolonged culture and was associated with increased alkaline phosphatase (ALPase) activity. When BMP-2, an enhancer of ALPase activity, was added to the primary osteoblast culture, BMP-3b mRNA increased 6.9-fold after 24 h. In contrast, TGF-beta1 treatment, which suppresses ALPase activity, rapidly and completely inhibited gene expression of BMP-3b. The regulation of BMP-3 mRNA differed from that of BMP-3b, even though both proteins share 81% identity. These findings indicate that BMP-3b gene expression is regulated by osteoblastic differentiation and BMP-3b functions in highly differentiated osteoblasts. CI - Copyright 1999 Academic Press. FAU - Hino, J AU - Hino J AD - National Cardiovascular Center Research Institute, Osaka, Fujishirodai, Suita, 565-8565, Japan. FAU - Matsuo, H AU - Matsuo H FAU - Kangawa, K AU - Kangawa K LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Anthraquinones) RN - 0 (Bmp2 protein, rat) RN - 0 (Bmp3 protein, rat) RN - 0 (Bone Morphogenetic Protein 2) RN - 0 (Bone Morphogenetic Protein 3) RN - 0 (Bone Morphogenetic Proteins) RN - 0 (Gdf10 protein, rat) RN - 0 (Growth Differentiation Factor 10) RN - 0 (RNA, Messenger) RN - 0 (Transforming Growth Factor beta) RN - 103107-01-3 (Fibroblast Growth Factor 2) RN - 5688UTC01R (Tretinoin) RN - 60MEW57T9G (alizarin) RN - EC 3.1.3.1 (Alkaline Phosphatase) SB - IM MH - Alkaline Phosphatase/metabolism MH - Animals MH - Animals, Newborn MH - Anthraquinones MH - Bone Morphogenetic Protein 2 MH - Bone Morphogenetic Protein 3 MH - Bone Morphogenetic Proteins/*genetics/pharmacology MH - Calcification, Physiologic/drug effects MH - Cell Differentiation MH - Cell Line MH - Cells, Cultured MH - Fibroblast Growth Factor 2/pharmacology MH - *Gene Expression Regulation/drug effects MH - Growth Differentiation Factor 10 MH - Osteoblasts/*metabolism MH - RNA, Messenger/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Skull/cytology/metabolism MH - Staining and Labeling MH - Time Factors MH - Transforming Growth Factor beta/pharmacology MH - Tretinoin/pharmacology EDAT- 1999/03/18 00:00 MHDA- 1999/03/18 00:01 CRDT- 1999/03/18 00:00 PHST- 1999/03/18 00:00 [pubmed] PHST- 1999/03/18 00:01 [medline] PHST- 1999/03/18 00:00 [entrez] AID - S0006-291X(99)90341-8 [pii] AID - 10.1006/bbrc.1999.0341 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1999 Mar 16;256(2):419-24. doi: 10.1006/bbrc.1999.0341.