## Abstract Endothelinβ1 (ETβ1) is a vasoactive peptide that modulates bone metabolism via regulatory effects on osteoblasts, chondrocytes, and osteoclasts. While ETβ1 may circulate in the blood stream, tissueβspecific expression of this peptide is more physiologically relevant. In the present stud
Regulation of expression of plasminogen activator inhibitor-1 in cultured rat osteoblastic cells by osteogenic protein-1 (BMP-7)
β Scribed by Lee-Chuan C. Yeh; Valery Mikhailov; John C. Lee
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 204 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0730-2312
- DOI
- 10.1002/jcb.1071
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β¦ Synopsis
Osteogenic Protein-1 (OP-1), a member of the bone morphogenetic protein (BMP) family that belongs to the TGF-b superfamily, induces bone formation in vivo and stimulates the synthesis of biochemical markers characteristic of osteoblast phenotypes in vitro. In the present study, effects of OP-1 on the expression of the plasminogen activator inhibitor-1 (PAI-1) in fetal rat calvaria (FRC) cells were examined. The PAI-1 protein levels in conditioned media of FRC cells treated with OP-1 or solvent control were determined by quantitative 2-dimensional polyacrylamide gel electrophoresis.
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Transit of serumstimulated normal rat kidney (NRK) epthelial cells through the first division cycle after release from quiescence (G 0 ) provided a model system to assess the kinetics and mechanisms underlying PAI-1 expression in a growth "activated" phenotype. PAI-1 mRNA transcripts increased by mo
## Abstract The Ξ²1 integrins play an important role in the modulation of cancer cell proliferation and tumor growth. We have previously shown that Ξ²1 integrins associate with insulinβlike growth factor type 1 receptor (IGFβIR) and regulate IGFβstimulated prostate cancer cell proliferation. In the p