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• W2271808877 abstract "// Doo-Sik Kong 1, 2, 3, 4 , Jinkuk Kim 2, 3, 4 , In-Hee Lee 2, 3, 4 , Sung Tae Kim 5 , Ho Jun Seol 1 , Jung-Il Lee 1 , Woong-Yang Park 6 , Gyuha Ryu 7 , Zichen Wang 7 , Avi Ma’ayan 7 , Do-Hyun Nam 1, 2, 3, 4 1 Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea 2 Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Korea 3 Institute for Refractory Cancer Research, Samsung Medical Center, Seoul, Korea 4 Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., Seoul, Korea 5 Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea 6 Samsung Genome Institute, Samsung Medical Center, Seoul, Korea 7 Department of Pharmacology and Systems Therapeutics, Icahn School of Medicine at Mount Sinai, New York, NY, USA Correspondence to: Do-Hyun Nam, e-mail: nsnam@skku.edu Keywords: glioblastoma, radiogenomic, multicentric Received: September 29, 2015      Accepted: January 18, 2016      Published: February 01, 2016 ABSTRACT We postulated that multicentric glioblastoma (GBM) represents more invasiveness form than solitary GBM and has their own genomic characteristics. From May 2004 to June 2010 we retrospectively identified 51 treatment-naïve GBM patients with available clinical information from the Samsung Medical Center data registry. Multicentricity of the tumor was defined as the presence of multiple foci on the T1 contrast enhancement of MR images or having high signal for multiple lesions without contiguity of each other on the FLAIR image. Kaplan-Meier survival analysis demonstrated that multicentric GBM had worse prognosis than solitary GBM (median, 16.03 vs. 20.57 months, p < 0.05). Copy number variation (CNV) analysis revealed there was an increase in 11 regions, and a decrease in 17 regions, in the multicentric GBM. Gene expression profiling identified 738 genes to be increased and 623 genes to be decreased in the multicentric radiophenotype ( p < 0.001). Integration of the CNV and expression datasets identified twelve representative genes: CPM, LANCL2, LAMP1, GAS6, DCUN1D2, CDK4, AGAP2, TSPAN33, PDLIM1, CLDN12, and GTPBP10 having high correlation across CNV, gene expression and patient outcome. Network and enrichment analyses showed that the multicentric tumor had elevated fibrotic signaling pathways compared with a more proliferative and mitogenic signal in the solitary tumors. Noninvasive radiological imaging together with integrative radiogenomic analysis can provide an important tool in helping to advance personalized therapy for the more clinically aggressive subset of GBM." @default.
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• W2271808877 date "2016-02-01" @default.
• W2271808877 modified "2023-10-16" @default.
• W2271808877 title "Integrative radiogenomic analysis for multicentric radiophenotype in glioblastoma" @default.
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• W2271808877 doi "https://doi.org/10.18632/oncotarget.7115" @default.
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