title: PBHMDA: Path-Based Human Microbe-Disease Association Prediction.
abstract: With the advance of sequencing technology and microbiology, the microorganisms have been found to be closely related to various important human diseases. The increasing identification of human microbe-disease associations offers important insights into the underlying disease mechanism understanding from the perspective of human microbes, which are greatly helpful for investigating pathogenesis, promoting early diagnosis and improving precision medicine. However, the current knowledge in this domain is still limited and far from complete. Here, we present the computational model of Path-Based Human Microbe-Disease Association prediction (PBHMDA) based on the integration of known microbe-disease associations and the Gaussian interaction profile kernel similarity for microbes and diseases. A special depth-first search algorithm was implemented to traverse all possible paths between microbes and diseases for inferring the most possible disease-related microbes. As a result, PBHMDA obtained a reliable prediction performance with AUCs (The area under ROC curve) of 0.9169 and 0.8767 in the frameworks of both global and local leave-one-out cross validations, respectively. Based on 5-fold cross validation, average AUCs of 0.9082 ± 0.0061 further demonstrated the efficiency of the proposed model. For the case studies of liver cirrhosis, type 1 diabetes, and asthma, 9, 7, and 9 out of predicted microbes in the top 10 have been confirmed by previously published experimental literatures, respectively. We have publicly released the prioritized microbe-disease associations, which may help to select the most potential pairs for further guiding the experimental confirmation. In conclusion, PBHMDA may have potential to boost the discovery of novel microbe-disease associations and aid future research efforts toward microbe involvement in human disease mechanism. The code and data of PBHMDA is freely available at http://www.escience.cn/system/file?fileId=85214.
authors.affiliation: College of Computer Science and Software Engineering, Shenzhen University Shenzhen, China.
authors.forename: Zhi-An
authors.initials: ZA
authors.lastname: Huang
authors.affiliation: School of Information and Control Engineering, China University of Mining and Technology Xuzhou, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Chen
authors.affiliation: College of Computer Science and Software Engineering, Shenzhen University Shenzhen, China.
authors.forename: Zexuan
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: School of Life Science, Liaoning UniversityShenyang, China; Research Center for Computer Simulating and Information Processing of Bio-Macromolecules of Liaoning ProvinceShenyang, China.
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Liu
authors.affiliation: Academy of Mathematics and Systems Science, Chinese Academy of Sciences Beijing, China.
authors.forename: Gui-Ying
authors.initials: GY
authors.lastname: Yan
authors.affiliation: Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Science ürümqi, China.
authors.forename: Zhu-Hong
authors.initials: ZH
authors.lastname: You
authors.affiliation: College of Computer Science and Software Engineering, Shenzhen University Shenzhen, China.
authors.forename: Zhenkun
authors.initials: Z
authors.lastname: Wen
keywords: association network; computational prediction model; diseases; microbes; path-based measure