Bone morphogenetic protein-9 binds to liver cells and stimulates proliferation

Jeffrey J. Song, Anthony J. Celeste, Feng Ming Kong, Randy L. Jirtle, Vicki Rosen, R. Scott Thies

Research output: Contribution to journalArticle

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Abstract

A new member of the transforming growth factor (TGF)-β superfamily, BMP-9, has recently been identified and shown to be expressed in the developing mouse liver. This report demonstrates that human HepG2 liver tumor cells bind recombinant human BMP-9 (rhBMP-9) with high affinity. Cross-linking analysis indicates that HepG2 cells express two BMP-9 receptors of approximately 54 and 80 kilodaltons, similar in size to the Type I and Type II receptors reported by others for TGF-β and BMP-4. However, cross-competition experiments demonstrate that the BMP-9 receptors on HepG2 cells do not bind other BMPs or TGF-β s, indicating that these are novel receptors with binding specificity for BMP-9. In functional studies, rhBMP-9 stimulates HepG2 cell proliferation as indicated by [3H]thymidine incorporation and cell counting assays. A proliferative effect of rh-BMP-9 was also observed on primary rat hepatocytes. In contrast, TGF-β had no effect on HepG2 cell proliferation and inhibited proliferation in primary hepatocytes. These results suggest that BMP-9, acting through a novel set of receptors, may play a regulatory role in hepatic growth and function.

Original languageEnglish (US)
Pages (from-to)4293-4297
Number of pages5
JournalEndocrinology
Volume136
Issue number10
DOIs
StatePublished - Jan 1 1995

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Growth Differentiation Factor 2
Cell Proliferation
Liver
Hep G2 Cells
Transforming Growth Factors
Bone Morphogenetic Protein Receptors
Hepatocytes
Thymidine

ASJC Scopus subject areas

  • Endocrinology

Cite this

Song, J. J., Celeste, A. J., Kong, F. M., Jirtle, R. L., Rosen, V., & Thies, R. S. (1995). Bone morphogenetic protein-9 binds to liver cells and stimulates proliferation. Endocrinology, 136(10), 4293-4297. https://doi.org/10.1210/endo.136.10.7664647

Bone morphogenetic protein-9 binds to liver cells and stimulates proliferation. / Song, Jeffrey J.; Celeste, Anthony J.; Kong, Feng Ming; Jirtle, Randy L.; Rosen, Vicki; Thies, R. Scott.

In: Endocrinology, Vol. 136, No. 10, 01.01.1995, p. 4293-4297.

Research output: Contribution to journalArticle

Song, JJ, Celeste, AJ, Kong, FM, Jirtle, RL, Rosen, V & Thies, RS 1995, 'Bone morphogenetic protein-9 binds to liver cells and stimulates proliferation', Endocrinology, vol. 136, no. 10, pp. 4293-4297. https://doi.org/10.1210/endo.136.10.7664647
Song JJ, Celeste AJ, Kong FM, Jirtle RL, Rosen V, Thies RS. Bone morphogenetic protein-9 binds to liver cells and stimulates proliferation. Endocrinology. 1995 Jan 1;136(10):4293-4297. https://doi.org/10.1210/endo.136.10.7664647
Song, Jeffrey J. ; Celeste, Anthony J. ; Kong, Feng Ming ; Jirtle, Randy L. ; Rosen, Vicki ; Thies, R. Scott. / Bone morphogenetic protein-9 binds to liver cells and stimulates proliferation. In: Endocrinology. 1995 ; Vol. 136, No. 10. pp. 4293-4297.
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