Regression Models and Ranking Method for p53 Inhibitor Candidates Using Machine Learning

Haruka Motohashi, Tatsuro Teraoka, Shin Aoki, Hayato Ohwada

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

Radiation therapy is one of the main treatments for cancer. However, it may cause various side effects owing to the apoptosis activity of the p53 protein in normal cells. Therefore, to avoid the side effects, it is important to protect normal cells against radiation by using p53 inhibitors. It is also expected that p53 inhibitors have low toxicity against patients' bodies. However, the design of p53 inhibitors is not easy because drug discovery requires enormous costs and long time. In this paper, we propose a new method for ranking candidate p53 inhibitors, considering both their radioprotective function and cytotoxicity. We use features of the two- and three-dimensional structures of the compounds, including fingerprints, some machine learning methods such as random forest and SVR (Support Vector Machine), and one method for ranking, i.e., the Pareto ranking method. Therefore, we present the regression models of the cytotoxicity and radioprotective functions of the candidates to determine their ranking. Our proposed methods yield useful rankings for drug discovery.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2018
EditorsHarald Schmidt, David Griol, Haiying Wang, Jan Baumbach, Huiru Zheng, Zoraida Callejas, Xiaohua Hu, Julie Dickerson, Le Zhang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages708-712
Number of pages5
ISBN (Electronic)9781538654880
DOIs
Publication statusPublished - 21 Jan 2019
Event2018 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2018 - Madrid, Spain
Duration: 3 Dec 20186 Dec 2018

Publication series

NameProceedings - 2018 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2018

Conference

Conference2018 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2018
Country/TerritorySpain
CityMadrid
Period3/12/186/12/18

Keywords

  • Pareto ranking
  • SVR
  • machine learning
  • p53

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