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A noncoding single-nucleotide polymorphism at 8q24 drives IDH1 -mutant glioma formation.

Connor YanchusKristen L DruckerThomas M KollmeyerRicky TsaiWarren Winick-NgMinggao LiangAhmad MalikJudy PawlingSilvana B De LorenzoAsma AliPaul A DeckerMatt L KoselArijit PandaKhalid N Al-ZahraniLingyan JiangJared W L BrowningChris LowdenMichael GeuenichJ Javier HernandezJessica T GosioMusaddeque AhmedSampath Kumar LoganathanJacob BermanDaniel TrckaKulandaimanuvel Antony MichealrajJerome FortinBrittany CarsonEthan W HollingsworthSandra JacintoParisa MazrooeiLily ZhouAndrew J EliaMathieu LupienHousheng Hansen HeDaniel J MurphyLiguo WangAlexej AbyzovJames W DennisPhilipp G MaassKieran CampbellMichael D WilsonDaniel H LachanceMargaret WrenschJohn WienckeTak Wah MakLen A PennacchioDiane E DickelAxel ViselJeffrey L WranaMichael D TaylorGelareh ZadehPeter B DirksJeanette E Eckel-PassowLiliana AttisanoAna PomboCristiane M IdaEvgeny Z KvonRobert B JenkinsDaniel Schramek
Published in: Science (New York, N.Y.) (2022)
Establishing causal links between inherited polymorphisms and cancer risk is challenging. Here, we focus on the single-nucleotide polymorphism rs55705857, which confers a sixfold greater risk of isocitrate dehydrogenase ( IDH) -mutant low-grade glioma (LGG). We reveal that rs55705857 itself is the causal variant and is associated with molecular pathways that drive LGG. Mechanistically, we show that rs55705857 resides within a brain-specific enhancer, where the risk allele disrupts OCT2/4 binding, allowing increased interaction with the Myc promoter and increased Myc expression. Mutating the orthologous mouse rs55705857 locus accelerated tumor development in an Idh1 R132H -driven LGG mouse model from 472 to 172 days and increased penetrance from 30% to 75%. Our work reveals mechanisms of the heritable predisposition to lethal glioma in ~40% of LGG patients.
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