Related Experiment Video
Updated: Jul 5, 2026

Mapping the Structure-Function Relationships of Disordered Oncogenic Transcription Factors Using Transcriptomic Analysis
Published on: June 27, 2020
Multiple facets of junD gene expression are atypical among AP-1 family members
J M Hernandez1, D H Floyd, K N Weilbaecher
1Department of Veterinary Biosciences and Center for Retrovirus Research, The Ohio State University, Columbus, OH 43210, USA.
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.
Insights
JunD, a key transcription factor, regulates cell growth and is implicated in diseases. Understanding its complex control mechanisms offers new therapeutic targets for cancer, metabolic, and viral disorders.
Area of Science:
- Molecular Biology
- Gene Regulation
- Cancer Biology
Background:
- JunD is a transcription factor belonging to the Activator Protein-1 (AP-1) family.
- Its activity influences critical cellular processes including proliferation, apoptosis, differentiation, and tumor angiogenesis.
- Dysregulation of JunD is linked to neoplastic, metabolic, and viral diseases.
Purpose of the Study:
- To elucidate the multifaceted regulatory mechanisms governing junD gene expression and JunD protein activity.
- To explore the intricate network through which JunD controls cellular growth.
- To identify potential therapeutic targets for JunD-associated diseases.
Main Methods:
- Review and integration of molecular and clinical data spanning two decades.
- Analysis of transcriptional control, post-transcriptional regulation, and post-translational modifications.
- Examination of JunD protein-protein interactions and their functional consequences.
Main Results:
- JunD's activity is precisely controlled by multiple layers of regulation, including transcriptional, post-transcriptional, and post-translational modifications.
- JunD plays a pivotal role in cellular growth control through its integrated regulatory network.
- Inappropriate JunD activity is a significant factor in the pathogenesis of various diseases.
Conclusions:
- A comprehensive understanding of JunD regulation is crucial for comprehending its role in cellular homeostasis and disease.
- Targeting the JunD regulatory network presents promising therapeutic strategies for neoplastic, metabolic, and viral diseases.
- Further research into JunD's regulatory network can unlock novel treatment avenues.
Related Concept Videos
Regulation of Expression Occurs at Multiple Steps
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Regulation of Expression Occurs at Multiple Steps
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Regulation of Expression at Multiple Steps
Constitutive and Regulated Gene Expression
Cell Specific Gene Expression
Cell Specific Gene Expression

