Abstract
Abstract 5072: Meta-analysis of genome-wide association studies identifies novel susceptibility loci for follicular lymphoma
Cancer research (Chicago, Ill.), Vol.74(19_Supplement), pp.5072-5072
10/01/2014
DOI: 10.1158/1538-7445.AM2014-5072
Abstract
Abstract
Background. Follicular lymphoma (FL) is an indolent B-cell malignancy with a variable clinical course that may transform to more aggressive forms of lymphoma. Previous modestly powered GWAS have reported multiple FL susceptibility loci in the HLA class I and II regions at 6p21.32-33, but novel non-HLA susceptibility loci and the genetic architecture of FL associations in the HLA region remain to be elucidated.
Methods. We conducted the largest GWAS of FL to date consisting of 2,142 cases and 6,221 controls of European ancestry from 22 studies scanned on the Illumina OmniExpress. After imputation of common SNPs using IMPUTE2 and 1,000 Genomes Project v3 data, we conducted a meta-analysis of these data with two previous FL GWAS (n=586 cases, 1,537 controls) and replicated top hits in an additional 629 cases and 4,283 controls. Expression quantitative trait loci (eQTL) analyses were performed to evaluate the effects of associated variants on gene expression. Classical HLA allele imputations and stepwise regression analyses are underway to further characterize the HLA associations.
Results. In the joint meta-analysis, the strongest association with FL risk was observed in the HLA region, where a large number of SNPs showed genome-wide significance (P<5x10-8 to P= 1.84x10-84), particularly in HLA class II at 6p21.32 where several HLA eQTLs were identified (P < 0.05). Outside HLA, we identified four novel loci associated with FL at 11q23.3 (CXCR5, rs4938573; P=3.14x10-15), 11q24.3 (ETS1, rs4937362; P=3.33x10-9), 3q13.33 (CD86, rs2681416; P=9.79x10-11) and 3q28 (LPP, rs6444305, P=2.55x10-8). These novel susceptibility loci were located in four biologically relevant genes involved in immune regulation: CXCR5 and its ligand, CXCL13, are involved in guiding B-cells into the B-cell zones of secondary lymphoid organs as well as T-cell migration. ETS1 is expressed in lymphoid cells and regulates immune cell function including differentiation, survival, and proliferation. CD86 and CD80 are classic members of the B7 costimulatory pathway that is important in maintaining immune function, suppression of autoimmunity and antitumor surveillance. LPP encodes a LIM domain-containing protein of the zyxin family and participates in cell adhesion, cell migration, proliferation and transcription dynamics.
Conclusions. This large GWAS provides further support for the important role of common genetic variation in non-HLA genes and further evidence of the key role that HLA immune-regulatory genes play in the pathogenesis of FL.
Citation Format: Christine F. Skibola, Sonja I. Berndt, James R. Cerhan, Zhaoming Wang, Joseph Vijai, Lucia Conde, Paul de Bakker, Sophia S. Wang, Claire M. Vajdic, Brenda M. Birmann, Susan L. Slager, James McKay, Paige M. Bracci, Alexandra Nieters, Qing Lan, Angela R. Brooks-Wilson, Martha S. Linet, Demetrius Albanes, John J. Spinelli, Roel C.H. Vermeulen, Mark P. Purdue, Meredith Yaeger, Lauren R. Teras, Silvia de Sanjose, Alain Monnereau, Simon Crouch, Jia Nee Foo, Henrik Hjalgrim, Gianluca Severi, Brian K. Link, Kimberly A. Bertrand, Yawei Zhang, Karin E. Smedby, Stephen J. Chanock, Nathaniel Rothman, NHL GWAS Consortium. Meta-analysis of genome-wide association studies identifies novel susceptibility loci for follicular lymphoma. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 5072. doi:10.1158/1538-7445.AM2014-5072
Details
- Title: Subtitle
- Abstract 5072: Meta-analysis of genome-wide association studies identifies novel susceptibility loci for follicular lymphoma
- Creators
- Christine F. Skibola - University of Alabama at BirminghamSonja I. Berndt - National Cancer InstituteJames R. Cerhan - 3Mayo Clinic, MN;Zhaoming Wang - 4Cancer Genomics Research Laboratory, NCI, MD;Joseph Vijai - Memorial Sloan Kettering Cancer CenterLucia Conde - University of Alabama at BirminghamPaul de BakkerSophia S. Wang - Beckman Research InstituteClaire M. Vajdic - UNSW SydneyBrenda M. Birmann - Brigham and Women's HospitalSusan L. Slager - 3Mayo Clinic, MN;James McKay - International Agency For Research On CancerPaige M. Bracci - University of California, San FranciscoAlexandra Nieters - University Medical Center FreiburgQing Lan - National Cancer InstituteAngela R. Brooks-Wilson - Simon Fraser UniversityMartha S. Linet - National Cancer InstituteDemetrius Albanes - National Cancer InstituteJohn J. Spinelli - BC Cancer AgencyRoel C.H. VermeulenMark P. Purdue - National Cancer InstituteMeredith Yaeger - 4Cancer Genomics Research Laboratory, NCI, MD;Lauren R. Teras - American Cancer SocietySilvia de SanjoséAlain Monnereau - 18Institut National de la Santé et de la Recherche Médicale, France;Simon Crouch - University of YorkJia Nee Foo - Agency for Science, Technology and ResearchHenrik Hjalgrim - Statens Serum InstitutGianluca Severi - Cancer Council VictoriaBrian K. Link - University of IowaKimberly A. Bertrand - Brigham and Women's HospitalYawei Zhang - 24Yale School of Public Health, CT;Karin E. Smedby - Karolinska InstitutetStephen J. Chanock - National Cancer InstituteNathaniel Rothman - National Cancer InstituteNHL GWAS Consortium
- Resource Type
- Abstract
- Publication Details
- Cancer research (Chicago, Ill.), Vol.74(19_Supplement), pp.5072-5072
- DOI
- 10.1158/1538-7445.AM2014-5072
- ISSN
- 0008-5472
- eISSN
- 1538-7445
- Language
- English
- Date published
- 10/01/2014
- Academic Unit
- Epidemiology; Hematology, Oncology, and Blood & Marrow Transplantation; Internal Medicine
- Record Identifier
- 9984362675202771
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