Genomics

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Genetic and Functional Drivers of Diffuse Large B Cell Lymphoma


ABSTRACT: Diffuse large B cell lymphoma (DLBCL) is the most common hematologic malignancy and is characterized by a striking degree of heterogeneity. We enrolled a total of 1001 DLBCL patients and comprehensively defined the landscape of genetic mutations, copy number alterations and expression through whole-exome and transcriptome sequencing. We identified 150 genetic drivers of DLBCL including many novel, clinically relevant genes (e.g. SPEN, SETD1B and KLHL14). Genetic drivers were highly enriched among essential genes identified by CRISPR screening in DLBCL cell lines including those of immediate potential therapeutic relevance such as MTOR, SYK, SF3B1 and XPO1. RHOA emerged as a critical driver gene from our genetic analysis and CRISPR screen; we further delineated its functional role in vitro and in vivo models to define its role as an essential oncogene in DLBCL. Our work thus identifies the functional landscape of genetic drivers and their clinical and therapeutic relevance in DLBCL patients.

PROVIDER: EGAS00001002606 | EGA |

REPOSITORIES: EGA

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Publications

Genetic and Functional Drivers of Diffuse Large B Cell Lymphoma.

Reddy Anupama A   Zhang Jenny J   Davis Nicholas S NS   Moffitt Andrea B AB   Love Cassandra L CL   Waldrop Alexander A   Leppa Sirpa S   Pasanen Annika A   Meriranta Leo L   Karjalainen-Lindsberg Marja-Liisa ML   Nørgaard Peter P   Pedersen Mette M   Gang Anne O AO   Høgdall Estrid E   Heavican Tayla B TB   Lone Waseem W   Iqbal Javeed J   Qin Qiu Q   Li Guojie G   Kim So Young SY   Healy Jane J   Richards Kristy L KL   Fedoriw Yuri Y   Bernal-Mizrachi Leon L   Koff Jean L JL   Staton Ashley D AD   Flowers Christopher R CR   Paltiel Ora O   Goldschmidt Neta N   Calaminici Maria M   Clear Andrew A   Gribben John J   Nguyen Evelyn E   Czader Magdalena B MB   Ondrejka Sarah L SL   Collie Angela A   Hsi Eric D ED   Tse Eric E   Au-Yeung Rex K H RKH   Kwong Yok-Lam YL   Srivastava Gopesh G   Choi William W L WWL   Evens Andrew M AM   Pilichowska Monika M   Sengar Manju M   Reddy Nishitha N   Li Shaoying S   Chadburn Amy A   Gordon Leo I LI   Jaffe Elaine S ES   Levy Shawn S   Rempel Rachel R   Tzeng Tiffany T   Happ Lanie E LE   Dave Tushar T   Rajagopalan Deepthi D   Datta Jyotishka J   Dunson David B DB   Dave Sandeep S SS  

Cell 20171001 2


Diffuse large B cell lymphoma (DLBCL) is the most common form of blood cancer and is characterized by a striking degree of genetic and clinical heterogeneity. This heterogeneity poses a major barrier to understanding the genetic basis of the disease and its response to therapy. Here, we performed an integrative analysis of whole-exome sequencing and transcriptome sequencing in a cohort of 1,001 DLBCL patients to comprehensively define the landscape of 150 genetic drivers of the disease. We chara  ...[more]

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