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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 Proc+Natl+Acad+Sci+U+S+A 2016 ; 113 (51): E8247-56 Nephropedia Template TP
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An NAD+-dependent transcriptional program governs self-renewal and radiation resistance in glioblastoma #MMPMID27930300
Gujar AD; Le S; Mao DD; Dadey DYA; Turski A; Sasaki Y; Aum D; Luo J; Dahiya S; Yuan L; Rich KM; Milbrandt J; Hallahan DE; Yano H; Tran DD; Kim AH
Proc Natl Acad Sci U S A 2016[Dec]; 113 (51): E8247-56 PMID27930300show ga
Glioblastoma, the most common primary malignant brain tumor in adults, remains challenging despite multimodality therapy, necessitating the discovery of new therapies. Nicotinamide adenine dinucleotide (NAD+) plays a pivotal role in cancer cell metabolism, but how NAD+ impacts functional signaling events in glioblastoma is not well understood. We provide clinical evidence that high expression of NAMPT, the rate-limiting step in NAD+ biosynthesis, in glioblastoma tumors is associated with poor overall survival in patients, and demonstrate NAMPT and NAD+ are required for the maintenance of patient-derived glioblastoma stem-like cells (GSCs). Moreover, we delineate a NAD+-dependent transcriptional program that governs GSC self-renewal and dictates the radiation resistance of these cells. These findings identify potential new therapeutic avenues for the treatment of glioblastoma.