Related Experiment Video
Updated: May 11, 2026

High-throughput Identification of Synergistic Drug Combinations by the Overlap2 Method
Published on: May 21, 2018
OCSANA: optimal combinations of interventions from network analysis
Paola Vera-Licona1, Eric Bonnet, Emmanuel Barillot
1Institut Curie, Paris F-75248, France, INSERM, U900, Paris F-75248, France. paola.vera-licona@curie.fr
Unlabelled:
Targeted therapies interfering with specifically one protein activity are promising strategies in the treatment of diseases like cancer. However, accumulated empirical experience has shown that targeting multiple proteins in signaling networks involved in the disease is often necessary. Thus, one important problem in biomedical research is the design and prioritization of optimal combinations of interventions to repress a pathological behavior, while minimizing side-effects. OCSANA (optimal combinations of interventions from network analysis) is a new software designed to identify and prioritize optimal and minimal combinations of interventions to disrupt the paths between source nodes and target nodes. When specified by the user, OCSANA seeks to additionally minimize the side effects that a combination of interventions can cause on specified off-target nodes. With the crucial ability to cope with very large networks, OCSANA includes an exact solution and a novel selective enumeration approach for the combinatorial interventions' problem.
Availability:
The latest version of OCSANA, implemented as a plugin for Cytoscape and distributed under LGPL license, is available together with source code at http://bioinfo.curie.fr/projects/ocsana.
Insights
This study introduces OCSANA software for identifying optimal drug combinations to treat diseases like cancer by targeting multiple proteins. OCSANA prioritizes minimal intervention combinations to disrupt disease pathways while minimizing side effects.
Area of Science:
- Systems biology
- Computational biology
- Drug discovery
Background:
- Targeted therapies often require interventions in multiple proteins within disease-related signaling networks.
- Designing optimal intervention combinations to repress pathological behavior while minimizing side effects is a significant challenge in biomedical research.
Purpose of the Study:
- To introduce OCSANA (optimal combinations of interventions from network analysis), a novel software tool for identifying and prioritizing optimal intervention combinations.
- To enable the disruption of specific signaling pathways by targeting multiple proteins.
- To minimize unintended side effects on off-target nodes.
Main Methods:
- OCSANA utilizes network analysis to identify optimal and minimal combinations of interventions.
- The software employs an exact solution and a novel selective enumeration approach.
- It can handle very large biological networks.
Main Results:
- OCSANA effectively identifies prioritized combinations of interventions.
- The software can minimize side effects by considering off-target nodes.
- It is capable of analyzing large-scale biological networks.
Conclusions:
- OCSANA provides a powerful computational approach for designing effective multi-target therapeutic strategies.
- The software aids in prioritizing interventions for complex diseases like cancer.
- It facilitates the development of targeted therapies with reduced side effects.
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