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Updated: Jun 23, 2026
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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Tumor marker discovery by expression profiling RNA from formalin fixed paraffin embedded tissues
Maureen T Cronin1, Debjani Dutta, Mylan Pho
1Research Department, Genomic Health, Inc., Redwood City, CA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|April 22, 2009
Summary
Identifying high-risk early-stage cancer patients is crucial for treatment. Gene expression biomarkers offer improved prognostic and predictive capabilities, aiding personalized cancer care and therapy selection.
Area of Science:
- Oncology
- Molecular Biology
- Biomarker Discovery
Background:
- Accurate identification of early-stage cancer patients at high risk for metastasis is essential for effective treatment planning.
- Predicting patient response to specific therapies is a significant clinical need for personalized medicine.
- Gene expression profiles show promise as molecular biomarkers for patient stratification, surpassing traditional methods.
Purpose of the Study:
- To develop and clinically validate a gene expression-based assay for breast cancer prognosis.
- To predict patient response to hormonal therapy and chemotherapy using molecular biomarkers.
- To optimize molecular profiling techniques for analyzing RNA from archived, formalin-fixed paraffin-embedded (FFPE) tissues.
Main Methods:
- Modification of RNA extraction, quantification, reverse transcription, and quantitative PCR (qPCR) methods for FFPE samples.
- Analysis of archived clinical samples with well-characterized clinical outcomes.
- Development of a clinically validated assay for breast cancer prognosis and treatment response prediction.
Main Results:
- Established optimized molecular methods for analyzing RNA from FFPE tissues.
- Developed a gene expression profiling assay suitable for clinical validation.
- Laid the groundwork for a clinically validated assay for breast cancer prognosis and treatment prediction.
Conclusions:
- Optimized molecular techniques enable the analysis of RNA from archived FFPE tissues for biomarker discovery.
- A clinically validated assay holds potential for improving breast cancer patient management and treatment selection.
- Gene expression biomarkers are valuable tools for prognostic and predictive patient stratification in oncology.
