Abstract
The multifunctional actions of transforming growth factor beta 1 (TGF-beta 1) indicate that it has a pivotal control function in many physiological and pathological processes. An important property of TGF-beta 1 is its ability to activate its own mRNA expression and thereby increase its own secretion. Two distinct regions of the promoter of the TGF-beta 1 gene are responsive to autoregulation: one 5' to the upstream transcriptional start site and another located between the two major start sites. In both promoter regions, autoinduction is mediated by binding of the AP-1 (Jun-Fos) complex. An important contribution to this positive regulation is the autoactivation of c-jun transcription by AP-1. Cotransfection of antisense c-jun or antisense c-fos expression vectors prevents TGF-beta 1 autoinduction. These results demonstrate that both components of the AP-1 complex are required for TGF-beta 1 autoinduction. Induction of jun expression by TGF-beta 1, as well as jun autoinduction, may amplify the action of TGF-beta 1 during normal development and oncogenesis.
Dates
Type | When |
---|---|
Created | 9 years, 10 months ago (Oct. 1, 2015, 5:55 p.m.) |
Deposited | 2 years, 8 months ago (Dec. 15, 2022, 9:01 a.m.) |
Indexed | 3 weeks, 2 days ago (Aug. 7, 2025, 4:38 p.m.) |
Issued | 35 years, 4 months ago (April 1, 1990) |
Published | 35 years, 4 months ago (April 1, 1990) |
Published Online | 35 years, 4 months ago (April 1, 1990) |
Published Print | 35 years, 4 months ago (April 1, 1990) |
@article{Kim_1990, title={Autoinduction of transforming growth factor beta 1 is mediated by the AP-1 complex.}, volume={10}, ISSN={1098-5549}, url={http://dx.doi.org/10.1128/mcb.10.4.1492}, DOI={10.1128/mcb.10.4.1492}, number={4}, journal={Molecular and Cellular Biology}, publisher={Informa UK Limited}, author={Kim, S J and Angel, P and Lafyatis, R and Hattori, K and Kim, K Y and Sporn, M B and Karin, M and Roberts, A B}, year={1990}, month=apr, pages={1492–1497} }