Identifying drug-target protein association pairs is a prerequisite and a crucial task in drug discovery and development. Numerous computational models, based on different assumptions and algorithms, have been proposed as an alternative to the laborious, costly, and time-consuming traditional wet-lab methods. Most proposed methods focus on separated drug and target descriptors, calculated, respectively, from chemical structures and protein sequences, and fail to introduce and extract features where the interaction information is embedded. In this paper, we propose a new three-step method based on matrix factorisation and generative adversarial network (GAN) for drug-target interaction prediction. Firstly, the matrix factorisation technique is used to capture and extract the joint interaction feature, for both drugs and targets, from the drug-target interaction matrix. Then, a GAN is introduced for data augmentation. It generates a fake positive sample similar to the real positive sample (known interactions) in order to balance the samples, allow the exploitation of the entire negative sample, and increase the data size for an accurate prediction. Finally, a fully connected four-layer neural network is built for classification. Experimental results illustrate a higher prediction performance of the proposed method compared to shallow classifiers and to state-of-the-art methods with an accuracy higher than 97%. Moreover, the data generation effect is confirmed by evaluating the proposed method with and without the generation step. These results demonstrated the efficiency of the latent interaction features and data generation on predicting new drugs or repurposing existing drugs.
Overview of the WGANMF-DTI workflow for the Drug-Target Interaction Prediction task.
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The used datasets are available in the following link: http://web.kuicr.kyoto-u.ac.jp/supp/yoshi/drugtarget/.
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Abbou, S.I., Bouziane, H. & Chouarfia, A. Logistic matrix factorisation and generative adversarial neural network-based method for predicting drug-target interactions. Mol Divers 25, 1497–1516 (2021). https://doi.org/10.1007/s11030-021-10273-9
- Drug-target interaction (DTI)
- Drug repurposing
- Logistic matrix factorisation
- Deep learning
- Generative adversarial networks (GAN)
- Latent interaction features