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Updated: Jul 18, 2026
An Orthotopic Bladder Cancer Model for Gene Delivery Studies
Published on: December 1, 2013
Tumor suppressor loci in bladder cancer
1Cancer Research UK Clinical Centre, St James's University Hospital, Beckett Street, Leeds, LS9 7TF, United Kingdom. margaret.knowles@cancer.org.uk
Abstract:
Large numbers of genetic and epigenetic alterations have been identified in bladder cancer in recent years. Many of these affect the function of tumour suppressor genes (TSGs), leading to partial or complete loss of protein expression or function with varied phenotypic consequences. Some of the genes implicated such as TP53 and RB1 are major players in many other tumour types. Others, particularly some on chromosome 9, show bladder-specific involvement. Other TSGs of relevance to bladder tumour development are predicted by the finding of common physical deletion or LOH in specific regions of the genome. This review summarises the approaches that have been used to identify bladder tumour suppressor genes, the current state of knowledge of the genes involved in this disease, their relationship with specific clinical features and some possible therapeutic applications.
Insights
Recent research reveals numerous genetic and epigenetic changes in bladder cancer, primarily affecting tumor suppressor genes (TSGs). Understanding these alterations is key to developing new therapeutic strategies for bladder tumors.
Area of Science:
- Oncology
- Genetics
- Epigenetics
Background:
- Bladder cancer is characterized by numerous genetic and epigenetic alterations.
- Many of these alterations impact tumor suppressor genes (TSGs), leading to loss of protein expression or function.
- Key TSGs like TP53 and RB1 are involved, alongside bladder-specific genes on chromosome 9.
Purpose of the Study:
- To review methods for identifying bladder tumor suppressor genes.
- To summarize current knowledge on bladder cancer-associated TSGs.
- To explore the relationship between TSGs, clinical features, and potential therapies.
Main Methods:
- Review of genetic and epigenetic studies in bladder cancer.
- Analysis of common physical deletions and loss of heterozygosity (LOH) data.
- Integration of findings on TSG function and clinical correlations.
Main Results:
- Identification of numerous TSGs involved in bladder cancer development.
- Characterization of both broadly acting and bladder-specific TSGs.
- Evidence linking TSG alterations to specific clinical features.
Conclusions:
- Genetic and epigenetic alterations in TSGs are central to bladder cancer.
- Further research into bladder-specific TSGs may reveal novel therapeutic targets.
- Understanding TSG function is crucial for advancing bladder cancer treatment.
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