PMID- 26773040 OWN - NLM STAT- MEDLINE DCOM- 20170619 LR - 20210202 IS - 1528-0020 (Electronic) IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 127 IP - 18 DP - 2016 May 5 TI - Diffuse large B-cell lymphoma patient-derived xenograft models capture the molecular and biological heterogeneity of the disease. PG - 2203-13 LID - 10.1182/blood-2015-09-672352 [doi] AB - Diffuse large B-cell lymphoma (DLBCL) is a heterogeneous disease defined by transcriptional classifications, specific signaling and survival pathways, and multiple low-frequency genetic alterations. Preclinical model systems that capture the genetic and functional heterogeneity of DLBCL are urgently needed. Here, we generated and characterized a panel of large B-cell lymphoma (LBCL) patient-derived xenograft (PDX) models, including 8 that reflect the immunophenotypic, transcriptional, genetic, and functional heterogeneity of primary DLBCL and 1 that is a plasmablastic lymphoma. All LBCL PDX models were subjected to whole-transcriptome sequencing to classify cell of origin and consensus clustering classification (CCC) subtypes. Mutations and chromosomal rearrangements were evaluated by whole-exome sequencing with an extended bait set. Six of the 8 DLBCL models were activated B-cell (ABC)-type tumors that exhibited ABC-associated mutations such as MYD88, CD79B, CARD11, and PIM1. The remaining 2 DLBCL models were germinal B-cell type, with characteristic alterations of GNA13, CREBBP, and EZH2, and chromosomal translocations involving IgH and either BCL2 or MYC Only 25% of the DLBCL PDX models harbored inactivating TP53 mutations, whereas 75% exhibited copy number alterations of TP53 or its upstream modifier, CDKN2A, consistent with the reported incidence and type of p53 pathway alterations in primary DLBCL. By CCC criteria, 6 of 8 DLBCL PDX models were B-cell receptor (BCR)-type tumors that exhibited selective surface immunoglobulin expression and sensitivity to entospletinib, a recently developed spleen tyrosine kinase inhibitor. In summary, we have established and characterized faithful PDX models of DLBCL and demonstrated their usefulness in functional analyses of proximal BCR pathway inhibition. CI - (c) 2016 by The American Society of Hematology. FAU - Chapuy, Bjoern AU - Chapuy B AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; FAU - Cheng, Hongwei AU - Cheng H AD - Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada; FAU - Watahiki, Akira AU - Watahiki A AD - Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada; FAU - Ducar, Matthew D AU - Ducar MD AD - Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Boston, MA; FAU - Tan, Yuxiang AU - Tan Y AD - Section of Computational Biomedicine, Boston University School of Medicine, Boston, MA; FAU - Chen, Linfeng AU - Chen L AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; FAU - Roemer, Margaretha G M AU - Roemer MG AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; FAU - Ouyang, Jing AU - Ouyang J AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; FAU - Christie, Amanda L AU - Christie AL AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; FAU - Zhang, Liye AU - Zhang L AD - Section of Computational Biomedicine, Boston University School of Medicine, Boston, MA; FAU - Gusenleitner, Daniel AU - Gusenleitner D AD - Section of Computational Biomedicine, Boston University School of Medicine, Boston, MA; FAU - Abo, Ryan P AU - Abo RP AD - Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Boston, MA; FAU - Farinha, Pedro AU - Farinha P AD - Department of Pathology and Laboratory Medicine and the Center for Lymphoid Cancer, British Columbia Cancer Agency, Vancouver, BC, Canada; FAU - von Bonin, Frederike AU - von Bonin F AD - Department of Hematology and Oncology, Georg-August University Goettingen, Goettingen, Germany; and. FAU - Thorner, Aaron R AU - Thorner AR AD - Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Boston, MA; FAU - Sun, Heather H AU - Sun HH AD - Department of Pathology, Brigham and Women's Hospital, Boston, MA. FAU - Gascoyne, Randy D AU - Gascoyne RD AD - Department of Pathology and Laboratory Medicine and the Center for Lymphoid Cancer, British Columbia Cancer Agency, Vancouver, BC, Canada; FAU - Pinkus, Geraldine S AU - Pinkus GS AD - Department of Pathology, Brigham and Women's Hospital, Boston, MA. FAU - van Hummelen, Paul AU - van Hummelen P AD - Center for Cancer Genome Discovery, Dana-Farber Cancer Institute, Boston, MA; FAU - Wulf, Gerald G AU - Wulf GG AD - Department of Hematology and Oncology, Georg-August University Goettingen, Goettingen, Germany; and. FAU - Aster, Jon C AU - Aster JC AD - Department of Pathology, Brigham and Women's Hospital, Boston, MA. FAU - Weinstock, David M AU - Weinstock DM AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; FAU - Monti, Stefano AU - Monti S AD - Section of Computational Biomedicine, Boston University School of Medicine, Boston, MA; FAU - Rodig, Scott J AU - Rodig SJ AD - Department of Pathology, Brigham and Women's Hospital, Boston, MA. FAU - Wang, Yuzhuo AU - Wang Y AD - Experimental Therapeutics, British Columbia Cancer Agency, Vancouver, BC, Canada; FAU - Shipp, Margaret A AU - Shipp MA AD - Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; LA - eng GR - P01 CA092625/CA/NCI NIH HHS/United States GR - P42 ES007381/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20160115 PL - United States TA - Blood JT - Blood JID - 7603509 SB - IM MH - Animals MH - Cell Lineage MH - Chromosome Aberrations MH - Gene Expression Regulation, Neoplastic MH - Genes, Neoplasm MH - Genetic Heterogeneity MH - Heterografts MH - Humans MH - Immunophenotyping MH - Lymphoma, Large B-Cell, Diffuse/*genetics/pathology MH - Male MH - Mice MH - Mice, Inbred NOD MH - Mice, SCID MH - Mutation MH - Sequence Analysis, DNA MH - Subrenal Capsule Assay MH - Transcriptome PMC - PMC4859195 EDAT- 2016/01/17 06:00 MHDA- 2017/06/20 06:00 PMCR- 2017/05/05 CRDT- 2016/01/17 06:00 PHST- 2015/09/28 00:00 [received] PHST- 2016/01/11 00:00 [accepted] PHST- 2016/01/17 06:00 [entrez] PHST- 2016/01/17 06:00 [pubmed] PHST- 2017/06/20 06:00 [medline] PHST- 2017/05/05 00:00 [pmc-release] AID - S0006-4971(20)30200-7 [pii] AID - 2015/672352 [pii] AID - 10.1182/blood-2015-09-672352 [doi] PST - ppublish SO - Blood. 2016 May 5;127(18):2203-13. doi: 10.1182/blood-2015-09-672352. Epub 2016 Jan 15.