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Updated: Mar 6, 2026

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
Published on: December 9, 2015
Proteogenomic studies on cancer drug resistance: towards biomarker discovery and target identification
Shuyue Fu1, Xiang Liu2, Maochao Luo3
1a State Key Laboratory of Biotherapy and Cancer Center , West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy , Chengdu , P.R. China.
Introduction:
Chemoresistance is a major obstacle for current cancer treatment. Proteogenomics is a powerful multi-omics research field that uses customized protein sequence databases generated by genomic and transcriptomic information to identify novel genes (e.g. noncoding, mutation and fusion genes) from mass spectrometry-based proteomic data. By identifying aberrations that are differentially expressed between tumor and normal pairs, this approach can also be applied to validate protein variants in cancer, which may reveal the response to drug treatment. Areas covered: In this review, we will present recent advances in proteogenomic investigations of cancer drug resistance with an emphasis on integrative proteogenomic pipelines and the biomarker discovery which contributes to achieving the goal of using precision/personalized medicine for cancer treatment. Expert commentary: The discovery and comprehensive understanding of potential biomarkers help identify the cohort of patients who may benefit from particular treatments, and will assist real-time clinical decision-making to maximize therapeutic efficacy and minimize adverse effects. With the development of MS-based proteomics and NGS-based sequencing, a growing number of proteogenomic tools are being developed specifically to investigate cancer drug resistance.
Insights
Proteogenomics integrates multi-omics data to identify novel cancer genes and protein variants, crucial for understanding chemoresistance and advancing precision medicine in cancer treatment.
Area of Science:
- Oncology
- Proteomics
- Genomics
Background:
- Chemoresistance presents a significant challenge in cancer therapy.
- Proteogenomics offers a multi-omics approach to address this challenge.
Purpose of the Study:
- To review recent advances in proteogenomic investigations of cancer drug resistance.
- To highlight the role of integrative proteogenomic pipelines and biomarker discovery in personalized cancer medicine.
Main Methods:
- Utilizing customized protein sequence databases derived from genomic and transcriptomic data.
- Employing mass spectrometry-based proteomics to identify novel genes and protein variants.
- Analyzing differentially expressed aberrations between tumor and normal tissues.
Main Results:
- Identification of novel genes (noncoding, mutation, fusion) contributing to chemoresistance.
- Validation of cancer-specific protein variants that may predict drug response.
- Advancement of biomarker discovery for targeted cancer therapies.
Conclusions:
- Proteogenomic approaches are vital for understanding and overcoming cancer chemoresistance.
- Biomarker discovery through proteogenomics supports personalized medicine strategies.
- Ongoing development of proteogenomic tools enhances the investigation of drug resistance in cancer.
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