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Gene targeting in kidney development
1Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA.
Abstract:
Cancer and development are conceptually related because tumor formation in many cases results from the aberrant expression of a developmental program. This is certainly true of Wilms' tumors, which display a range of phenotypes resembling various stages of kidney development. WT1 has been identified as a tumor suppressor gene involved in a subset of Wilms' tumors. Gene targeting of the WT1 gene demonstrated the requirement for this gene product during early urogenital development. Several other genes, including Wnt-4, c-ret, ld and lim 1, have been shown by gene targeting to also be involved in early kidney development. This review discusses gene targeting as an approach to the study of development and reviews the phenotypes of these and other genes involved in kidney organogenesis.
Insights
Wilms
Area of Science:
- Developmental Biology
- Cancer Biology
- Genetics
Background:
- Cancer development often involves aberrant gene expression mimicking developmental programs.
- Wilms' tumors exhibit phenotypes resembling kidney development stages.
- The WT1 gene is a tumor suppressor implicated in some Wilms' tumors.
Purpose of the Study:
- To review gene targeting as a method for studying development.
- To discuss genes involved in kidney organogenesis.
- To examine the phenotypes associated with kidney development genes.
Main Methods:
- Gene targeting studies were analyzed.
- Phenotypic analysis of gene knockout models was reviewed.
- Literature review of developmental and cancer-related genes.
Main Results:
- Gene targeting confirms WT1's role in early urogenital development.
- Other genes like Wnt-4, c-ret, Id, and Lim1 are crucial for kidney development.
- Aberrant expression of developmental genes can lead to tumor formation.
Conclusions:
- Gene targeting is a powerful tool for understanding developmental processes.
- Disruptions in kidney development pathways can contribute to Wilms' tumor formation.
- Further research into these genes can illuminate cancer and developmental biology.