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• W2891837572 abstract "Individualized therapies ask for the most effective regimen for each patient, while the patients’ response may differ from each other. However, it is impossible to clinically evaluate each patient’s response due to the large population. Human cell lines have harbored most of the same genetic changes found in patients’ tumors, thus are widely used to help understand initial responses of drugs. Based on the more credible assumption that similar cell lines and similar drugs exhibit similar responses, we formulated drug response prediction as a recommender system problem, and then adopted a hybrid interpolation weighted collaborative filtering (HIWCF) method to predict anti-cancer drug responses of cell lines by incorporating cell line similarity and drug similarity shown from gene expression profiles, drug chemical structure as well as drug response similarity. Specifically, we estimated the baseline based on the available responses and shrunk the similarity score for each cell line pair as well as each drug pair. The similarity scores were then shrunk and weighted by the correlation coefficients drawn from the know response between each pair. Before used to find the K most similar neighbors for further prediction, they went through the case amplification strategy to emphasize high similarity and neglect low similarity. In the last step for prediction, cell line-oriented and drug-oriented collaborative filtering models were carried out, and the average of predicted values from both models was used as the final predicted sensitivity. Through 10-fold cross validation, this approach was shown to reach accurate and reproducible outcome for those missing drug sensitivities. We also found that the drug response similarity between cell lines or drugs may play important role in the prediction. Finally, we discussed the biological outcomes based on the newly predicted response values in GDSC dataset." @default.
• W2891837572 created "2018-09-27" @default.
• W2891837572 creator A5018073436 @default.
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• W2891837572 date "2018-09-12" @default.
• W2891837572 modified "2023-10-16" @default.
• W2891837572 title "A Hybrid Interpolation Weighted Collaborative Filtering Method for Anti-cancer Drug Response Prediction" @default.
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• W2891837572 doi "https://doi.org/10.3389/fphar.2018.01017" @default.
• W2891837572 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6143790" @default.
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• W2891837572 hasPublicationYear "2018" @default.
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