title: Prediction of drug indications based on chemical interactions and chemical similarities.
abstract: Discovering potential indications of novel or approved drugs is a key step in drug development. Previous computational approaches could be categorized into disease-centric and drug-centric based on the starting point of the issues or small-scaled application and large-scale application according to the diversity of the datasets. Here, a classifier has been constructed to predict the indications of a drug based on the assumption that interactive/associated drugs or drugs with similar structures are more likely to target the same diseases using a large drug indication dataset. To examine the classifier, it was conducted on a dataset with 1,573 drugs retrieved from Comprehensive Medicinal Chemistry database for five times, evaluated by 5-fold cross-validation, yielding five 1st order prediction accuracies that were all approximately 51.48%. Meanwhile, the model yielded an accuracy rate of 50.00% for the 1st order prediction by independent test on a dataset with 32 other drugs in which drug repositioning has been confirmed. Interestingly, some clinically repurposed drug indications that were not included in the datasets are successfully identified by our method. These results suggest that our method may become a useful tool to associate novel molecules with new indications or alternative indications with existing drugs.
authors.affiliation: Institute of Systems Biology, Shanghai University, Shanghai 200444, China ; Department of Mathematics, Shaoyang University, Shaoyang, Hunan 422000, China.
authors.forename: Guohua
authors.initials: G
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
authors.forename: Yin
authors.initials: Y
authors.lastname: Lu
authors.affiliation: Department of Mathematics, East China Normal University, Shanghai 200241, China.
authors.forename: Changhong
authors.initials: C
authors.lastname: Lu
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
authors.forename: Mingyue
authors.identifier: 0000-0002-3323-3092
authors.initials: M
authors.lastname: Zheng
authors.affiliation: Institute of Systems Biology, Shanghai University, Shanghai 200444, China.
authors.forename: Yu-Dong
authors.initials: YD
authors.lastname: Cai
mesh_terms: D000465:Algorithms; D057225:Data Mining / Q000379:methods*; D062313:Databases, Pharmaceutical; D004019:Dictionaries, Pharmaceutic as Topic; D015195:Drug Design; D004347:Drug Interactions; D058492:Drug Repositioning / Q000379:methods*
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