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Computational modeling of genetic variations by multi-omics integration todecipher personal genome

通过多组学整合遗传变异的计算模型来破译个人基因组

基本信息

批准号：
10625423
负责人：
Li Chen
金额：
$ 35.73万
依托单位：
UNIVERSITY OF FLORIDA
依托单位国家：
美国
项目类别：
财政年份：
2021
资助国家：
美国
起止时间：
2021-08-01 至 2026-05-31
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/10625423
关键词：
Alzheimer&apos s Disease Biological Assay Biological Markers Biomedical Research Collaborations Communities Computer Models Computing Methodologies Data Development Diagnosis Dimensions Genetic Medicine Genetic Variation Genome Goals Heritability Human Genetics Indiana Individual Linkage Disequilibrium Machine Learning Methodology Methods Multiple Myeloma Persons Phenotype Precision Health Quantitative Trait Loci Research Role Sample Size Scanning Scientist Software Tools Statistical Methods Systems Biology Testing Training Universities Untranslated RNA Variant Work biobank computer framework disorder prevention empowerment genetic variant genome sequencing genome wide association study improved interest laboratory experiment molecular phenotype multidisciplinary multiple omics novel open source precision medicine programs trait transfer learning whole genome

项目摘要

Computational modeling of genetic variations by multi-omics integration to decipher personal genome A person’s genome typically contains millions of genetic variants. Understanding these variants by assessing their functional impact on a person’s phenotype, is currently of great interest in human genetics and precision medicine. Though Genome-Wide Association Studies (GWAS) or Quantitative Trait Locus (QTL) studies have successfully identified variants associated with traits or molecular phenotypes, most of them are in noncoding regions and hampered by linkage disequilibrium, making the identification and interpretation of casual variants difficult. Moreover, most of these discoveries are common variants, however, rare and individual-specific variants in personal genome are underexplored. Understanding these variants will not only explain the missing heritability from GWAS but also improve the precision medicine. Recently, the advent and popularity of whole genome sequencing (WGS) and paired multi-omics functional assays provide an unprecedented opportunity to identify rare and individual-specific casual variants. However, the sample sizes of most WGS studies are modest compared to GWAS, making the WGS analysis particularly challenging. Nevertheless, statistical and computational methods for analyzing WGS are underdeveloped. Given these challenges and my unique multi- disciplinary training, the overall goals of my research program are to develop a novel class of machine learning, statistical and system biology approaches for the identification, prioritization and interpretation of noncoding variants by integrating GWAS, WGS and multi-omics functional assays, which will empower precision medicine by identifying individualized biomarkers for disease prevention, diagnosis and treatment. Specifically, in the next five years, my lab will (i) develop a novel transfer learning approach to improve the prediction of noncoding casual variants using multi-dimensional omics features (ii) develop a multi-omics integrated omnibus scan test to improve the identification of rare casual variants from whole-genome sequencing data (iii) develop an integrative computational framework for scoring impact of noncoding variants in personal genome (iv) develop a novel class of multi-trait methods to improve phenotype prediction using whole-genome genetic variations. In the meantime, supported by Indiana University Precision Health Initiative, we will apply the methodologies to different studies from Indiana Alzheimer’s Disease Center and Indiana Multiple Myeloma Biobank for novel scientific findings. We will work close with collaborated geneticists and clinician-scientists to interpret the discoveries. Importantly, we will work with experimental labs to validate the findings. In line with our previous work, we will continue to make all developed methods into open-source software tools that are accessible and useful to the biomedical research community.

基于多组学集成的遗传变异计算建模以破译个人基因组