Abstract

Functional drug actions refer to drug-affected GO terms. They aid in the investigation of drug effects that are therapeutic or adverse. Previous studies have utilized the linkage information between drugs and functions in molecular level biological networks. Since the current knowledge of molecular level mechanisms of biological functions is still limited, such previous studies were incomplete. We expected that the multi-level biological networks would allow us to more completely investigate the functional drug actions. We constructed multi-level biological networks with genes, GO terms, and diseases. Meta-paths were utilized to extract the features of each GO term. We trained 39 SVM models to prioritize the functional drug actions of the various 39 drugs. Through the multi-level networks, more functional drug actions were utilized for the 39 models and inferred by the models. Multi-level based features improved the performance of the models, and the average AUROC value in the cross-validation was 0.86. Moreover, 60% of the candidates were true.

Highlights

  • Functional drug actions refer to drug-affected GO terms

  • Functional drug actions are defined as drug actions on biological functions such as GO terms[2]

  • The features of each function were extracted from linkage information about the function with targets or indications in the multi-level biological networks

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Summary

Introduction

Functional drug actions refer to drug-affected GO terms. They aid in the investigation of drug effects that are therapeutic or adverse. Even though the utilities of functional drug actions have been demonstrated in drug development, information about the functional drug actions in relevant databases is described in plain text without standardized identifiers such as GO terms but is scarce and confined to their own purposes in the drug development. Such information in the DrugBank was produced by only two or more curators using PubMed, drug references, Food and Drug Administration (FDA) labels, etc.[13] wet lab experiments with cells, tissue, or animal models are a clear way to identify functional drug actions; the costs are high. The prioritized candidates will help to collect functional drug actions that have been already identified and to select proper candidates for investigation in wet lab experiments

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