Multiple facets of junD gene expression are atypical among AP-1 family members

J. M. Hernandez, D. H. Floyd, K. N. Weilbaecher, P. L. Green, K. Boris-Lawrie

Research output: Contribution to journalReview articlepeer-review

61 Scopus citations

Abstract

JunD is a versatile AP-1 transcription factor that can activate or repress a diverse collection of target genes. Precise control of junD expression and JunD protein-protein interactions modulate tumor angiogenesis, cellular differentiation, proliferation and apoptosis. Molecular and clinical knowledge of two decades has revealed that precise JunD activity is elaborated by interrelated layers of constitutive transcriptional control, complex post-transcriptional regulation and a collection of post-translational modifications and protein-protein interactions. The stakes are high, as inappropriate JunD activity contributes to neoplastic, metabolic and viral diseases. This article deconvolutes multiple layers of control that safeguard junD gene expression and functional activity. The activity of JunD in transcriptional activation and repression is integrated into a regulatory network by which JunD exerts a pivotal role in cellular growth control. Our discussion of the JunD regulatory network integrates important open issues and posits new therapeutic targets for the neoplastic, metabolic and viral diseases associated with JunD/AP-1 expression.

Original languageEnglish (US)
Pages (from-to)4757-4767
Number of pages11
JournalOncogene
Volume27
Issue number35
DOIs
StatePublished - Aug 14 2008

Bibliographical note

Funding Information:
We thank Ms Nicole Placek for input on early versions of the manuscript, Mr Tim Vojt for assistance on figure design and the reviewers for important suggestions. This work was supported by grants from the National Institutes of Health: RO1CA108882; P01CA16058 and P30CA100730.

Keywords

  • AP-1
  • Cancer
  • HTLV-1
  • Heart failure
  • JunD
  • RNA helicase A and post-transcriptional control element

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