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Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development
Published on: October 30, 2013
Can uric acid affect the immune microenvironment in bladder cancer? A single-center multi-omics study
Haotian Chen1,2, Donghui Shi3, Changfeng Guo4
1Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
High uric acid (UA) levels are linked to worse bladder cancer (BCa) prognosis and reduced immunotherapy effectiveness. This study identifies UA as a key factor influencing BCa progression and patient survival.
Area of Science:
- Urology
- Cancer Research
- Immunology
Background:
- Metabolic abnormalities influence bladder cancer (BCa) progression and the tumor microenvironment.
- The role of uric acid (UA), a purine metabolism product, in BCa metabolism and immunotherapy response is not well understood.
Purpose of the Study:
- To investigate the prognostic value of uric acid (UA) in bladder cancer (BCa).
- To explore the association between UA and immunotherapy response in BCa patients.
Main Methods:
- Retrospective analysis of 39 PD-1 treated and 169 radical cystectomy BCa patients.
- Establishment of a hyperuricemia mouse model with BCa xenografts.
- Multi-omic analysis including single-cell sequencing and construction of a UA-related gene signature.
Main Results:
- High UA levels correlated with worse prognosis and were an independent risk factor for cancer-specific survival in BCa patients (p=0.007).
- Hyperuricemia mice exhibited increased tumor weight and volume, with a significant decline in CD8+ and CD4+ T cells.
- UA-related genes were elevated in CD8+ T cells of immunotherapy non-responders, and a UA-related signature predicted survival.
Conclusions:
- Uric acid (UA) serves as an independent prognostic biomarker for bladder cancer (BCa).
- Elevated UA levels are associated with poorer outcomes and diminished response to immunotherapy in BCa.
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