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Published on: April 18, 2025
Molecular subtyping of bladder cancer: current trends and future directions in 2019
Woodson W Smelser1, Benjamin L Woolbright, John A Taylor
1Department of Urology, University of Kansas Medical Center, Kansas City, USA.
Purpose Of Review:
Personalized medicine portends a future where patients receive therapy based on mutational and gene expression profiles intrinsic to their tumor. Recent advances in molecular subtyping of tumors have pushed us closer to using patient-specific data to guide therapy. The purpose of this review is to understand how these advances may be used to understand tumor development and direct therapeutic regimens clinically.
Recent Findings:
Multiple reports have identified specific molecular subtypes present in bladder cancer. A variety of classification schemes are currently being suggested based on different groups observations on gene expression, mutational profile, and histological variability. Notably, recent novel findings indicate standard of care with neoadjuvant platinum-based chemotherapy effectively removes the basal subtype specifically, indicating clinical data largely supports the use of molecular subtyping as a way to treat tumors.
Summary:
Although varied classifications are present in the field currently, more work is required to truly define which subtypes are responsive to specific therapies. Current data supports the idea that molecular subtyping will benefit patients; however, these data also argue in favor of combinatorial therapy and molecular profiling throughout treatment.
Insights
Personalized medicine uses tumor molecular subtypes to guide cancer therapy. Advances in bladder cancer subtyping show promise for targeted treatments, with chemotherapy effective against specific subtypes.
Area of Science:
- Oncology
- Genomics
- Translational Medicine
Background:
- Personalized medicine aims to tailor treatments based on individual tumor characteristics.
- Molecular subtyping of tumors is advancing, enabling patient-specific therapeutic strategies.
- Understanding tumor development and clinical treatment requires integrating molecular data.
Purpose of the Study:
- To review how molecular subtyping advances can inform tumor development understanding.
- To explore the clinical application of molecular subtyping in directing therapeutic regimens.
- To assess the current state and future potential of personalized cancer therapy.
Main Methods:
- Review of recent scientific literature on tumor molecular subtyping.
- Analysis of gene expression and mutational profiling data in cancer.
- Evaluation of clinical data supporting molecular subtyping for treatment selection.
Main Results:
- Multiple molecular subtypes have been identified in bladder cancer.
- Current classification schemes vary, based on gene expression, mutations, and histology.
- Neoadjuvant platinum-based chemotherapy shows efficacy in targeting the basal subtype.
Conclusions:
- Molecular subtyping holds significant potential for improving patient outcomes.
- Further research is needed to define subtype-specific therapy responses.
- Combinatorial therapy and ongoing molecular profiling are recommended during treatment.
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