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Using Pharmacogenomic Databases for Discovering Patient-Target Genes and Small Molecule Candidates to Cancer Therapy
José E Belizário1, Beatriz A Sangiuliano1, Marcela Perez-Sosa1
1Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil.
Abstract:
With multiple omics strategies being applied to several cancer genomics projects, researchers have the opportunity to develop a rational planning of targeted cancer therapy. The investigation of such numerous and diverse pharmacogenomic datasets is a complex task. It requires biological knowledge and skills on a set of tools to accurately predict signaling network and clinical outcomes. Herein, we describe Web-based in silico approaches user friendly for exploring integrative studies on cancer biology and pharmacogenomics. We briefly explain how to submit a query to cancer genome databases to predict which genes are significantly altered across several types of cancers using CBioPortal. Moreover, we describe how to identify clinically available drugs and potential small molecules for gene targeting using CellMiner. We also show how to generate a gene signature and compare gene expression profiles to investigate the complex biology behind drug response using Connectivity Map. Furthermore, we discuss on-going challenges, limitations and new directions to integrate molecular, biological and epidemiological information from oncogenomics platforms to create hypothesis-driven projects. Finally, we discuss the use of Patient-Derived Xenografts models (PDXs) for drug profiling in vivo assay. These platforms and approaches are a rational way to predict patient-targeted therapy response and to develop clinically relevant small molecules drugs.
Insights
Researchers can plan targeted cancer therapies by integrating diverse omics data. User-friendly web tools like CBioPortal, CellMiner, and Connectivity Map aid in analyzing cancer genomics and predicting drug responses.
Area of Science:
- Computational biology and bioinformatics
- Cancer genomics and pharmacogenomics
- Integrative omics data analysis
Background:
- Advancements in omics technologies provide vast cancer genomics datasets.
- Analyzing these diverse pharmacogenomic datasets is complex, requiring specialized tools and biological expertise.
- Predicting signaling networks and clinical outcomes necessitates integrative approaches.
Approach:
- Web-based *in silico* tools are presented for exploring cancer biology and pharmacogenomics.
- CBioPortal is used for querying cancer genome databases to identify significantly altered genes across cancer types.
- CellMiner is employed to identify drugs and small molecules for gene targeting.
- Connectivity Map is utilized for generating gene signatures and comparing expression profiles to understand drug response.
Key Points:
- User-friendly *in silico* platforms facilitate the exploration of integrative cancer genomics and pharmacogenomics studies.
- Specific tools enable gene alteration analysis, drug identification, and gene expression profiling for drug response investigation.
- Patient-Derived Xenografts (PDXs) models are discussed for *in vivo* drug profiling.
Conclusions:
- These integrative platforms and approaches offer a rational strategy for predicting patient-specific targeted therapy responses.
- The discussed methods support the development of clinically relevant small molecule drugs.
- Ongoing challenges and future directions in integrating multi-omics and epidemiological data are highlighted.
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