The genomic landscape of familial glioma
Dong‐Joo Choi, Georgina Armstrong, Brittney Lozzi, Prashanth Vijayaraghavan, Sharon E. Plon, Terence C. Wong, Eric Boerwinkle, Donna M. Muzny, Hsiao‐Chi Chen, Richard A. Gibbs, Quinn T. Ostrom, Beatrice Melin, Benjamin Deneen, Melissa L. Bondy, Matthew N. Bainbridge, Christopher I. Amos, Jill S. Barnholtz‐Sloan, Jonine L. Bernstein, Elizabeth B. Claus, Richard S. Houlston, Dora Il’yasova, Robert B. Jenkins, Christoffer Johansen, Daniel H. Lachance, Rose Lai, Beatrice Melin, Ryan Merrell, Sara H. Olson, Siegal Sadetzki, Joellen Schildkraut, Sanjay Shete, John C. Ambrose, Prabhu Arumugam, R. Bevers, Marta Bleda, F. Boardman-Pretty, C. R. Boustred, Helen Brittain, Matthew A. Brown, Mark J. Caulfield, G. C. Chan, Adam Giess, John N. Griffin, Angela Hamblin, Stephen Henderson, Tim Hubbard, R. Jackson, J. Louise Jones, Dalia Kasperavičiūtė, Melis Kayikci, Athanasios Kousathanas, L. Lahnstein, A. Lakey, S. E. A. Leigh, I. U. S. Leong, Fabrice Lopez, F. Maleady-Crowe, Meriel McEntagart, Federico Minneci, Jonathan S. Mitchell, Loukas Moutsianas, Marcus Mueller, Nirupa Murugaesu, Anna C. Need, Peter O’Donovan, Chris A. Odhams, Christine Patch, D. Perez-Gil, Mariana Buongermino Pereira, J. Pullinger, T. Rahim, Augusto Rendon, T. Rogers, K. Savage, K. Sawant, Richard H. Scott, Afshan Siddiq, A. Sieghart, Samuel C. Smith, Alona Sosinsky, A. Stuckey, M. Tanguy, Ana Lisa Taylor Tavares, Ellen Thomas, Simon R. Thompson, Arianna Tucci, M. J. Welland, Eleanor Williams, Katarzyna Witkowska, S. M. Wood, Magdalena Zarowiecki
Abstract
Glioma is a rare brain tumor with a poor prognosis. Familial glioma is a subset of glioma with a strong genetic predisposition that accounts for approximately 5% of glioma cases. We performed whole-genome sequencing on an exploratory cohort of 203 individuals from 189 families with a history of familial glioma and an additional validation cohort of 122 individuals from 115 families. We found significant enrichment of rare deleterious variants of seven genes in both cohorts, and the most significantly enriched gene was HERC2 ( P = 0.0006). Furthermore, we identified rare noncoding variants in both cohorts that were predicted to affect transcription factor binding sites or cause cryptic splicing. Last, we selected a subset of discovered genes for validation by CRISPR knockdown screening and found that DMBT1, HP1BP3 , and ZCH7B3 have profound impacts on proliferation. This study performs comprehensive surveillance of the genomic landscape of familial glioma.