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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Commun 2018 ; 9 (ä): ä Nephropedia Template TP
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In vivo screening identifies GATAD2B as a metastasis driver in KRAS-driven lung cancer #MMPMID30013058
Grzeskowiak CL; Kundu ST; Mo X; Ivanov AA; Zagorodna O; Lu H; Chapple RH; Tsang YH; Moreno D; Mosqueda M; Eterovic K; Fradette JJ; Ahmad S; Chen F; Chong Z; Chen K; Creighton CJ; Fu H; Mills GB; Gibbons DL; Scott KL
Nat Commun 2018[]; 9 (ä): ä PMID30013058show ga
Genetic aberrations driving pro-oncogenic and pro-metastatic activity remain an elusive target in the quest of precision oncology. To identify such drivers, we use an animal model of KRAS-mutant lung adenocarcinoma to perform an in vivo functional screen of 217 genetic aberrations selected from lung cancer genomics datasets. We identify 28 genes whose expression promoted tumor metastasis to the lung in mice. We employ two tools for examining the KRAS-dependence of genes identified from our screen: 1) a human lung cell model containing a regulatable mutant KRAS allele and 2) a lentiviral system permitting co-expression of DNA-barcoded cDNAs with Cre recombinase to activate a mutant KRAS allele in the lungs of mice. Mechanistic evaluation of one gene, GATAD2B, illuminates its role as a dual activity gene, promoting both pro-tumorigenic and pro-metastatic activities in KRAS-mutant lung cancer through interaction with c-MYC and hyperactivation of the c-MYC pathway.