Related Experiment Videos
The WT1 Wilms tumor gene product: a developmentally regulated transcription factor in the kidney that functions as a
1Wistar Institute of Anatomy and Biology, Philadelphia, Pennsylvania 19104.
Abstract:
Alteration of transcription factor function is becoming a common theme in molecular mechanisms of oncogenesis. A recent example of this trend is the isolation and characterization of the chromosome 11p13 Wilms tumor suppressor gene, WT1. The WT1 protein contains a DNA binding domain consisting of four zinc fingers of the Cys2-His2 class and a proline-glutamine rich region capable of regulating transcription. Deletions of the WT1 gene or point mutations which destroy the DNA binding activity of the protein are associated with the development of the pediatric nephroblastoma Wilms tumor and Denys-Drash syndrome. This article reviews the role of WT1 in normal kidney development processes, the known biochemical functions of the protein and the status of identifying target genes regulated by this potentially oncogenic transcription factor.
Insights
The Wilms tumor suppressor gene (WT1) plays a crucial role in kidney development. Mutations in WT1 are linked to Wilms tumor and Denys-Drash syndrome, highlighting its function in oncogenesis.
Area of Science:
- Oncogenesis
- Molecular Biology
- Developmental Biology
Background:
- Alterations in transcription factor function are key in cancer development.
- The Wilms tumor suppressor gene (WT1) is a critical player in oncogenesis.
- WT1 mutations are associated with Wilms tumor and Denys-Drash syndrome.
Purpose of the Study:
- Review the role of WT1 in normal kidney development.
- Summarize the known biochemical functions of the WT1 protein.
- Discuss the identification of WT1 target genes.
Main Methods:
- Literature review of WT1 gene and protein functions.
- Analysis of WT1's role in oncogenesis and development.
- Examination of mutations affecting WT1 DNA binding and transcriptional regulation.
Main Results:
- WT1 protein has a DNA-binding domain (zinc fingers) and a transcription-regulating domain.
- WT1 gene deletions or mutations impairing DNA binding are linked to Wilms tumor.
- WT1 is essential for normal kidney development.
Conclusions:
- WT1 is a critical transcription factor with roles in development and disease.
- Understanding WT1's function and target genes is vital for cancer research.
- WT1's involvement in oncogenesis warrants further investigation.