title: KINOMIC ALTERATIONS IN ATYPICAL MENINGIOMA.
abstract: BACKGROUND
  We sought to profile Atypical Meningioma in a high-throughput manner to better understand the altered signaling within these tumors and specifically the kinases altered in recurrent atypical meningioma. Kinomic Profiles could be used to identify prognostic biomarkers for responders/non-responders to classify future patients that are unlikely to benefit from current therapies. Directly these results could be used to identify drug-actionable kinase targets as well.
  
  
  METHODS
  Peptide-substrate microarray kinase activity analysis was conducted with a PamStation®12 analyzing the tyrosine kinome in each tumor kinetically against ~144 target peptides. These data were then analyzed relative to clinical outcome (e.g., tumor recurrence).
  
  
  RESULTS
  3 major clusters of atypical meningiomas were identified with highly variant peptides primarily being targets of EGFR family, ABL, BRK and BMX kinases. Kinomic analysis of recurrent atypical meningiomas indicated patterns of increased phosphorylation of BMX, TYRO3 and FAK substrates as compared to non-recurrent tumors.
  
  
  CONCLUSIONS
  The atypical meningiomas profiled here exhibited molecular sub-clustering that may have phenotypic corollaries predictive of outcome. Recurrent tumors had increases in kinase activity that may predict resistance to current therapies, and may guide selection of directed therapies. Taken together these data further the understanding of kinomic alteration in atypical meningioma, and the processes that may not only mediate recurrence, but additionally may identify kinase targets for intervention.
authors.affiliation: University of Alabama at Birmingham, Department of Radiation Oncology.
authors.forename: Joshua C
authors.initials: JC
authors.lastname: Anderson
authors.affiliation: University of Alabama at Birmingham, Department of Radiation Oncology.
authors.forename: Robert B
authors.initials: RB
authors.lastname: Taylor
authors.affiliation: University of Alabama at Birmingham, Department of Radiation Oncology.
authors.forename: John B
authors.initials: JB
authors.lastname: Fiveash
authors.affiliation: PamGene International B.V., 's-Hertogenbosch, The Netherlands.
authors.forename: Rik
authors.initials: R
authors.lastname: de Wijn
authors.affiliation: University of Alabama at Birmingham, Department of Radiation Oncology.
authors.forename: G Yancey
authors.initials: GY
authors.lastname: Gillespie
authors.affiliation: University of Alabama at Birmingham, Department of Radiation Oncology.
authors.forename: Christopher D
authors.initials: CD
authors.lastname: Willey
keywords: kinase activity; kinomics; meningioma; personalized medicine; radiation