Cyclin D1 repression of peroxisome proliferator-activated receptor γ expression and transactivation

Chenguang Wang, Nagarajan Pattabiraman, Jian Nian Zhou, Maofu Fu, Toshiyuki Sakamaki, Chris Albanese, Zhiping Li, Kongming Wu, James Hulit, Peter Neumeister, Phyllis M. Novikoff, Michael Brownlee, Philipp E. Scherer, Joan G. Jones, Kathleen D. Whitney, Lawrence A. Donehower, Emily L. Harris, Thomas Rohan, David C. Johns, Richard G. Pestell

Research output: Contribution to journalArticle

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Abstract

The cyclin D1 gene is overexpressed in human breast cancers and is required for oncogene-induced tumorigenesis. Peroxisome proliferator-activated receptor γ (PPARγ) is a nuclear receptor selectively activated by ligands of the thiazolidinedione class. PPARγ induces hepatic steatosis, and liganded PPARγ promotes adipocyte differentiation. Herein, cyclin D1 inhibited ligand-induced PPARγ function, transactivation, expression, and promoter activity. PPARγ transactivation induced by the ligand BRL49653 was inhibited by cyclin D1 through a pRB- and cdk-independent mechanism, requiring a region predicted to form an helix-loop-helix (HLH) structure. The cyclin D1 HLH region was also required for repression of the PPARγ ligand-binding domain linked to a heterologous DNA binding domain. Adipocyte differentiation by PPARγ-specific ligands (BRL49653, troglitazone) was enhanced in cyclin D1-/- fibroblasts and reversed by retroviral expression of cyclin D1. Homozygous deletion of the cyclin D1 gene, enhanced expression by PPARγ ligands of PPARγ and PPARγ-responsive genes, and cyclin D1-/- mice exhibit hepatic steatosis. Finally, reduction of cyclin D1 abundance in vivo using ponasterone-inducible cyclin D1 antisense transgenic mice, increased expression of PPARγ in vivo. The inhibition of PPARγ function by cyclin D1 is a new mechanism of signal transduction cross talk between PPARγ ligands and mitogenic signals that induce cyclin D1.

Original languageEnglish (US)
Pages (from-to)6159-6173
Number of pages15
JournalMolecular and Cellular Biology
Volume23
Issue number17
DOIs
StatePublished - Sep 2003

Fingerprint

Peroxisome Proliferator-Activated Receptors
Cyclin D1
Transcriptional Activation
Ligands
rosiglitazone
bcl-1 Genes
troglitazone
Adipocytes
Liver
Cytoplasmic and Nuclear Receptors
Oncogenes
Transgenic Mice
Signal Transduction
Carcinogenesis

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Cell Biology

Cite this

Wang, C., Pattabiraman, N., Zhou, J. N., Fu, M., Sakamaki, T., Albanese, C., ... Pestell, R. G. (2003). Cyclin D1 repression of peroxisome proliferator-activated receptor γ expression and transactivation. Molecular and Cellular Biology, 23(17), 6159-6173. https://doi.org/10.1128/MCB.23.17.6159-6173.2003

Cyclin D1 repression of peroxisome proliferator-activated receptor γ expression and transactivation. / Wang, Chenguang; Pattabiraman, Nagarajan; Zhou, Jian Nian; Fu, Maofu; Sakamaki, Toshiyuki; Albanese, Chris; Li, Zhiping; Wu, Kongming; Hulit, James; Neumeister, Peter; Novikoff, Phyllis M.; Brownlee, Michael; Scherer, Philipp E.; Jones, Joan G.; Whitney, Kathleen D.; Donehower, Lawrence A.; Harris, Emily L.; Rohan, Thomas; Johns, David C.; Pestell, Richard G.

In: Molecular and Cellular Biology, Vol. 23, No. 17, 09.2003, p. 6159-6173.

Research output: Contribution to journalArticle

Wang, C, Pattabiraman, N, Zhou, JN, Fu, M, Sakamaki, T, Albanese, C, Li, Z, Wu, K, Hulit, J, Neumeister, P, Novikoff, PM, Brownlee, M, Scherer, PE, Jones, JG, Whitney, KD, Donehower, LA, Harris, EL, Rohan, T, Johns, DC & Pestell, RG 2003, 'Cyclin D1 repression of peroxisome proliferator-activated receptor γ expression and transactivation', Molecular and Cellular Biology, vol. 23, no. 17, pp. 6159-6173. https://doi.org/10.1128/MCB.23.17.6159-6173.2003
Wang, Chenguang ; Pattabiraman, Nagarajan ; Zhou, Jian Nian ; Fu, Maofu ; Sakamaki, Toshiyuki ; Albanese, Chris ; Li, Zhiping ; Wu, Kongming ; Hulit, James ; Neumeister, Peter ; Novikoff, Phyllis M. ; Brownlee, Michael ; Scherer, Philipp E. ; Jones, Joan G. ; Whitney, Kathleen D. ; Donehower, Lawrence A. ; Harris, Emily L. ; Rohan, Thomas ; Johns, David C. ; Pestell, Richard G. / Cyclin D1 repression of peroxisome proliferator-activated receptor γ expression and transactivation. In: Molecular and Cellular Biology. 2003 ; Vol. 23, No. 17. pp. 6159-6173.
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abstract = "The cyclin D1 gene is overexpressed in human breast cancers and is required for oncogene-induced tumorigenesis. Peroxisome proliferator-activated receptor γ (PPARγ) is a nuclear receptor selectively activated by ligands of the thiazolidinedione class. PPARγ induces hepatic steatosis, and liganded PPARγ promotes adipocyte differentiation. Herein, cyclin D1 inhibited ligand-induced PPARγ function, transactivation, expression, and promoter activity. PPARγ transactivation induced by the ligand BRL49653 was inhibited by cyclin D1 through a pRB- and cdk-independent mechanism, requiring a region predicted to form an helix-loop-helix (HLH) structure. The cyclin D1 HLH region was also required for repression of the PPARγ ligand-binding domain linked to a heterologous DNA binding domain. Adipocyte differentiation by PPARγ-specific ligands (BRL49653, troglitazone) was enhanced in cyclin D1-/- fibroblasts and reversed by retroviral expression of cyclin D1. Homozygous deletion of the cyclin D1 gene, enhanced expression by PPARγ ligands of PPARγ and PPARγ-responsive genes, and cyclin D1-/- mice exhibit hepatic steatosis. Finally, reduction of cyclin D1 abundance in vivo using ponasterone-inducible cyclin D1 antisense transgenic mice, increased expression of PPARγ in vivo. The inhibition of PPARγ function by cyclin D1 is a new mechanism of signal transduction cross talk between PPARγ ligands and mitogenic signals that induce cyclin D1.",
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AU - Brownlee, Michael

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AU - Jones, Joan G.

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