Related Experiment Video
Updated: Jul 6, 2026

Microarray-based Identification of Individual HERV Loci Expression: Application to Biomarker Discovery in Prostate Cancer
Published on: November 2, 2013
Personalized 3-Gene Panel for Prostate Cancer Target Therapy
Sanda Iacobas1, Dumitru Andrei Iacobas2
1Department of Pathology, New York Medical College, Valhalla, NY 10595, USA.
Abstract:
Many years and billions spent for research did not yet produce an effective answer to prostate cancer (PCa). Not only each human, but even each cancer nodule in the same tumor, has unique transcriptome topology. The differences go beyond the expression level to the expression control and networking of individual genes. The unrepeatable heterogeneous transcriptomic organization among men makes the quest for universal biomarkers and "fit-for-all" treatments unrealistic. We present a bioinformatics procedure to identify each patient's unique triplet of PCa Gene Master Regulators (GMRs) and predict consequences of their experimental manipulation. The procedure is based on the Genomic Fabric Paradigm (GFP), which characterizes each individual gene by the independent expression level, expression variability and expression coordination with each other gene. GFP can identify the GMRs whose controlled alteration would selectively kill the cancer cells with little consequence on the normal tissue. The method was applied to microarray data on surgically removed prostates from two men with metastatic PCas (each with three distinct cancer nodules), and DU145 and LNCaP PCa cell lines. The applications verified that each PCa case is unique and predicted the consequences of the GMRs' manipulation. The predictions are theoretical and need further experimental validation.
Insights
Prostate cancer (PCa) research has yielded no universal treatments due to unique patient transcriptomes. This study introduces a bioinformatics method to identify patient-specific Gene Master Regulators (GMRs) for targeted PCa therapy.
Area of Science:
- Oncology
- Bioinformatics
- Genomics
Background:
- Prostate cancer (PCa) remains a significant health challenge with billions invested in research yielding limited effective treatments.
- Tumor heterogeneity is extreme in PCa, with unique transcriptomic profiles not only between patients but also within individual tumors.
- The lack of universal biomarkers and "fit-for-all" treatments stems from this inherent unrepeatable inter-individual transcriptomic organization.
Purpose of the Study:
- To develop a bioinformatics procedure for identifying a patient's unique set of PCa Gene Master Regulators (GMRs).
- To predict the outcomes of experimental manipulation of these identified GMRs.
- To address the limitations of universal biomarkers and treatments in prostate cancer.
Main Methods:
- Utilized the Genomic Fabric Paradigm (GFP) to characterize individual genes based on expression level, variability, and coordination.
- Developed a bioinformatics procedure to identify a unique triplet of PCa GMRs for each patient.
- Applied the method to microarray data from metastatic PCa patients and PCa cell lines.
Main Results:
- Verified that each prostate cancer case exhibits a unique transcriptomic organization.
- Successfully identified patient-specific GMRs and predicted the consequences of their manipulation.
- Demonstrated the potential for GMRs whose alteration could selectively target cancer cells with minimal impact on normal tissues.
Conclusions:
- The proposed bioinformatics procedure effectively identifies patient-specific GMRs in prostate cancer.
- This approach offers a pathway towards personalized treatments by targeting unique cancer vulnerabilities.
- Further experimental validation is required to confirm the theoretical predictions and clinical utility.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Pharmacogenomics: Identification of New Drug Targets

