title: Towards precision medicine-based therapies for glioblastoma: interrogating human disease genomics and mouse phenotypes.
abstract: Glioblastoma (GBM) is the most common and aggressive brain tumors. It has poor prognosis even with optimal radio- and chemo-therapies. Since GBM is highly heterogeneous, drugs that target on specific molecular profiles of individual tumors may achieve maximized efficacy. Currently, the Cancer Genome Atlas (TCGA) projects have identified hundreds of GBM-associated genes. We develop a drug repositioning approach combining disease genomics and mouse phenotype data towards predicting targeted therapies for GBM.
  
  
  
  We first identified disease specific mouse phenotypes using the most recently discovered GBM genes. Then we systematically searched all FDA-approved drugs for candidates that share similar mouse phenotype profiles with GBM. We evaluated the ranks for approved and novel GBM drugs, and compared with an existing approach, which also use the mouse phenotype data but not the disease genomics data.
  
  
  
  We achieved significantly higher ranks for the approved and novel GBM drugs than the earlier approach. For all positive examples of GBM drugs, we achieved a median rank of 9.2 45.6 of the top predictions have been demonstrated effective in inhibiting the growth of human GBM cells.
  
  
  
  We developed a computational drug repositioning approach based on both genomic and phenotypic data. Our approach prioritized existing GBM drugs and outperformed a recent approach. Overall, our approach shows potential in discovering new targeted therapies for GBM.
authors.affiliation: Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, USA.
authors.forename: Yang
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, USA.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Gao
authors.affiliation: Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA.
authors.forename: Bingcheng
authors.initials: B
authors.lastname: Wang
authors.affiliation: Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, USA. rxx@case.edu.
authors.forename: Rong
authors.initials: R
authors.lastname: Xu
mesh_terms: D000818:Animals; D019295:Computational Biology / Q000379:methods*; D020869:Gene Expression Profiling / Q000379:methods; D015972:Gene Expression Regulation, Neoplastic; D015894:Genome, Human; D023281:Genomics; D005909:Glioblastoma / Q000188:drug therapy* / Q000235:genetics* / Q000473:pathology; D006801:Humans; D051379:Mice; D035683:MicroRNAs; D057285:Precision Medicine; D011379:Prognosis
chemical_list: D035683:MicroRNAs
keywords: Cancer genomics; Drug repositioning; Glioblastoma; Mouse phenotype