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A Data Integration Workflow to Identify Drug Combinations Targeting Synthetic Lethal Interactions
Published on: May 27, 2021
Oncobox Bioinformatical Platform for Selecting Potentially Effective Combinations of Target Cancer Drugs Using
Maxim Sorokin1,2,3, Roman Kholodenko4, Maria Suntsova5
1National Research Centre "Kurchatov Institute", Centre for Convergence of Nano-, Bio-, Information and Cognitive Sciences and Technologies, 1 Akademika Kurchatova pl., Moscow 123182, Russia. sorokin.maks@gmail.com.
Abstract:
Sequential courses of anticancer target therapy lead to selection of drug-resistant cells, which results in continuous decrease of clinical response. Here we present a new approach for predicting effective combinations of target drugs, which act in a synergistic manner. Synergistic combinations of drugs may prevent or postpone acquired resistance, thus increasing treatment efficiency. We cultured human ovarian carcinoma SKOV-3 and neuroblastoma NGP-127 cancer cell lines in the presence of Tyrosine Kinase Inhibitors (Pazopanib, Sorafenib, and Sunitinib) and Rapalogues (Temsirolimus and Everolimus) for four months and obtained cell lines demonstrating increased drug resistance. We investigated gene expression profiles of intact and resistant cells by microarrays and analyzed alterations in 378 cancer-related signaling pathways using the bioinformatical platform Oncobox. This revealed numerous pathways linked with development of drug resistant phenotypes. Our approach is based on targeting proteins involved in as many as possible signaling pathways upregulated in resistant cells. We tested 13 combinations of drugs and/or selective inhibitors predicted by Oncobox and 10 random combinations. Synergy scores for Oncobox predictions were significantly higher than for randomly selected drug combinations. Thus, the proposed approach significantly outperforms random selection of drugs and can be adopted to enhance discovery of new synergistic combinations of anticancer target drugs.
Insights
This study introduces a novel method to predict synergistic drug combinations for cancer therapy, aiming to overcome drug resistance. The approach identifies key proteins in upregulated pathways of resistant cells, significantly improving treatment efficacy.
Area of Science:
- Oncology
- Pharmacology
- Bioinformatics
Background:
- Sequential anticancer targeted therapies often lead to drug resistance, reducing clinical effectiveness.
- Acquired resistance in cancer cells necessitates novel therapeutic strategies to maintain treatment efficacy.
Purpose of the Study:
- To develop and validate a new approach for predicting synergistic anticancer drug combinations.
- To identify drug combinations that can prevent or delay acquired drug resistance.
Main Methods:
- Cultured human ovarian carcinoma (SKOV-3) and neuroblastoma (NGP-127) cell lines with Tyrosine Kinase Inhibitors and Rapalogues to induce resistance.
- Analyzed gene expression profiles of sensitive and resistant cells using microarrays.
- Utilized the bioinformatic platform Oncobox to analyze 378 cancer-related signaling pathways and identify upregulated pathways in resistant cells.
- Tested predicted synergistic drug combinations against random combinations.
Main Results:
- Identified numerous signaling pathways associated with the development of drug-resistant phenotypes.
- The proposed approach, targeting proteins in multiple upregulated pathways, yielded significantly higher synergy scores compared to random drug combinations.
- Predicted combinations demonstrated superior synergy over random selections.
Conclusions:
- The novel approach effectively predicts synergistic anticancer drug combinations.
- This method can enhance the discovery of new drug combinations to combat acquired resistance and improve cancer treatment outcomes.
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