Growth inhibition by TGF-β linked to suppression of retinoblastoma protein phosphorylation

Marikki Laiho, James A. DeCaprio, John W. Ludlow, David M. Livingston, Joan Massague

Research output: Contribution to journalArticle

Abstract

The growth-suppressive function of the retinoblastoma gene product, RB, has been ascribed to the underphosphorylated RB form that prevails during G1 phase in the cell cycle. We show that addition of the paracrine growth inhibitor transforming growth factor β1 (TGF-β1) to Mv1Lu lung epithelial cells in mid to late G1 prevents phosphorylation of RB scheduled for this cell cycle stage and arrests cells in late G1. Expression of SV40 T antigen, a transforming protein that binds underphosphorylated RB, does not block the effect of TGF-β1 on RB phosphorylation but greatly reduces the growth-inhibitory response to TGF-β1. TGF-β1 and RB appear to function in a common growth-inhibitory pathway in which TGF-β1 acts to retain RB in the underphosphorylated, growth-suppressive state.

Original languageEnglish (US)
Pages (from-to)175-185
Number of pages11
JournalCell
Volume62
Issue number1
DOIs
StatePublished - Jul 13 1990
Externally publishedYes

Fingerprint

Retinoblastoma Protein
Phosphorylation
Transforming Growth Factors
Growth
Cells
Retinoblastoma Genes
Polyomavirus Transforming Antigens
Growth Inhibitors
G1 Phase
Cell Cycle Checkpoints
Cell Cycle
Genes
Epithelial Cells
Lung
Proteins

ASJC Scopus subject areas

  • Cell Biology
  • Molecular Biology

Cite this

Growth inhibition by TGF-β linked to suppression of retinoblastoma protein phosphorylation. / Laiho, Marikki; DeCaprio, James A.; Ludlow, John W.; Livingston, David M.; Massague, Joan.

In: Cell, Vol. 62, No. 1, 13.07.1990, p. 175-185.

Research output: Contribution to journalArticle

Laiho, M, DeCaprio, JA, Ludlow, JW, Livingston, DM & Massague, J 1990, 'Growth inhibition by TGF-β linked to suppression of retinoblastoma protein phosphorylation', Cell, vol. 62, no. 1, pp. 175-185. https://doi.org/10.1016/0092-8674(90)90251-9
Laiho, Marikki ; DeCaprio, James A. ; Ludlow, John W. ; Livingston, David M. ; Massague, Joan. / Growth inhibition by TGF-β linked to suppression of retinoblastoma protein phosphorylation. In: Cell. 1990 ; Vol. 62, No. 1. pp. 175-185.
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