Volume 62, Issue 2 pp. 499-510
Osteoarthritis

A genome-wide association study identifies an osteoarthritis susceptibility locus on chromosome 7q22

Hanneke J. M. Kerkhof

Hanneke J. M. Kerkhof

Erasmus Medical Centre, Rotterdam, The Netherlands

Ms Kerkhof and Drs. Uitterlinden and van Meurs have a patent pending in the field of disease diagnostics, including classification and prognosis of osteoarthritis by use of genetic markers.

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Rik J. Lories

Rik J. Lories

Katholieke Universiteit Leuven, Leuven, Belgium

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Ingrid Meulenbelt

Ingrid Meulenbelt

Leiden University Medical Centre, Leiden, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

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Ingileif Jonsdottir

Ingileif Jonsdottir

deCODE Genetics and University of Iceland, Reykjavik, Iceland

Drs. Jonsdottir, Ingvarsson, Thorleifsson, Halldorsson, Styrkársdóttir, and Stefansson own stock or stock options in deCODE Genetics.

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Ana M. Valdes

Ana M. Valdes

King's College London, London, UK

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Pascal Arp

Pascal Arp

Erasmus Medical Centre, Rotterdam, The Netherlands

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Thorvaldur Ingvarsson

Thorvaldur Ingvarsson

University of Akureyri, Akureyri, Iceland and University of Iceland, Reykjavik, Iceland

Drs. Jonsdottir, Ingvarsson, Thorleifsson, Halldorsson, Styrkársdóttir, and Stefansson own stock or stock options in deCODE Genetics.

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Mila Jhamai

Mila Jhamai

Erasmus Medical Centre, Rotterdam, The Netherlands

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Helgi Jonsson

Helgi Jonsson

Landspitali University Hospital and University of Iceland, Reykjavik, Iceland

Drs. Jonsdottir, Ingvarsson, Thorleifsson, Halldorsson, Styrkársdóttir, and Stefansson own stock or stock options in deCODE Genetics.

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Lisette Stolk

Lisette Stolk

Erasmus Medical Centre, Rotterdam, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

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Gudmar Thorleifsson

Gudmar Thorleifsson

deCODE Genetics, Reykjavik, Iceland

Drs. Jonsdottir, Ingvarsson, Thorleifsson, Halldorsson, Styrkársdóttir, and Stefansson own stock or stock options in deCODE Genetics.

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Guangju Zhai

Guangju Zhai

King's College London, London, UK

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Feng Zhang

Feng Zhang

King's College London, London, UK

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Yanyan Zhu

Yanyan Zhu

Boston University School of Public Health, Boston, Massachusetts

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Ruud van der Breggen

Ruud van der Breggen

Leiden University Medical Centre, Leiden, The Netherlands

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Andrew Carr

Andrew Carr

Nuffield Orthopaedic Centre, Oxford, UK

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Michael Doherty

Michael Doherty

University of Nottingham and City Hospital Nottingham, Nottingham, UK

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Sally Doherty

Sally Doherty

University of Nottingham and City Hospital Nottingham, Nottingham, UK

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David T. Felson

David T. Felson

Boston University School of Medicine, Boston, Massachusetts

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Antonio Gonzalez

Antonio Gonzalez

Hospital Clinico Universitario Santiago, Santiago de Compostela, Spain

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Bjarni V. Halldorsson

Bjarni V. Halldorsson

deCODE Genetics and Reykjavik University, Reykjavik, Iceland

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Deborah J. Hart

Deborah J. Hart

King's College London, London, UK

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Valdimar B. Hauksson

Valdimar B. Hauksson

deCODE Genetics, Reykjavik, Iceland

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Albert Hofman

Albert Hofman

Erasmus Medical Centre, Rotterdam, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

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John P. A. Ioannidis

John P. A. Ioannidis

University of Ioannina School of Medicine, Ioannina, Greece

Tufts University School of Medicine, Boston, Massachusetts

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Margreet Kloppenburg

Margreet Kloppenburg

Leiden University Medical Centre, Leiden, The Netherlands

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Nancy E. Lane

Nancy E. Lane

University of California at San Francisco and University of California at Davis, Sacramento

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John Loughlin

John Loughlin

Newcastle University, Newcastle upon Tyne, UK

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Frank P. Luyten

Frank P. Luyten

Katholieke Universiteit Leuven, Leuven, Belgium

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Michael C. Nevitt

Michael C. Nevitt

University of California at San Francisco and University of California at Davis, Sacramento

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Neeta Parimi

Neeta Parimi

California Pacific Research Institute, San Francisco

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Huibert A. P. Pols

Huibert A. P. Pols

Erasmus Medical Centre, Rotterdam, The Netherlands

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Fernando Rivadeneira

Fernando Rivadeneira

Erasmus Medical Centre, Rotterdam, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

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Eline P. Slagboom

Eline P. Slagboom

Leiden University Medical Centre, Leiden, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

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Unnur Styrkársdóttir

Unnur Styrkársdóttir

deCODE Genetics, Reykjavik, Iceland

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Aspasia Tsezou

Aspasia Tsezou

University of Thessaly, Larissa, Greece

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Tom van de Putte

Tom van de Putte

TiGenix, Leuven, Belgium

Dr. van de Putte owns stock or stock options in TiGenix and is coholder of a patent on a transgenic animal with controllable hyperproliferation and a skin inflammation phenotype.

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Joseph Zmuda

Joseph Zmuda

University of Pittsburgh, Pittsburgh, Pennsylvania

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Tim D. Spector

Tim D. Spector

King's College London, London, UK

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Kari Stefansson

Kari Stefansson

deCODE Genetics and University of Iceland, Reykjavik, Iceland

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André G. Uitterlinden

André G. Uitterlinden

Erasmus Medical Centre, Rotterdam, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

Ms Kerkhof and Drs. Uitterlinden and van Meurs have a patent pending in the field of disease diagnostics, including classification and prognosis of osteoarthritis by use of genetic markers.

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Joyce B. J. van Meurs

Corresponding Author

Joyce B. J. van Meurs

Erasmus Medical Centre, Rotterdam, The Netherlands and The Netherlands Genomics Initiative–Sponsored Netherlands Consortium for Healthy Aging, Rotterdam, The Netherlands

Ms Kerkhof and Drs. Uitterlinden and van Meurs have a patent pending in the field of disease diagnostics, including classification and prognosis of osteoarthritis by use of genetic markers.

Genetics Laboratory, Department of Internal Medicine, Room Ee571, Erasmus Medical Centre, PO Box 1738, 3000 DR Rotterdam, The NetherlandsSearch for more papers by this author
First published: 07 January 2010
Citations: 175

Points of view or opinions in this paper are those of the authors and do not necessarily represent the official position or policies of the Tufts Clinical and Translational Science Institute.

Abstract

Objective

To identify novel genes involved in osteoarthritis (OA), by means of a genome-wide association study.

Methods

We tested 500,510 single-nucleotide polymorphisms (SNPs) in 1,341 Dutch Caucasian OA cases and 3,496 Dutch Caucasian controls. SNPs associated with at least 2 OA phenotypes were analyzed in 14,938 OA cases and ∼39,000 controls. Meta-analyses were performed using the program Comprehensive Meta-analysis, with P values <1 × 10−7 considered genome-wide significant.

Results

The C allele of rs3815148 on chromosome 7q22 (minor allele frequency 23%; intron 12 of the COG5 gene) was associated with a 1.14-fold increased risk (95% confidence interval 1.09–1.19) of knee and/or hand OA (P = 8 × 10−8) and also with a 30% increased risk of knee OA progression (95% confidence interval 1.03–1.64) (P = 0.03). This SNP is in almost complete linkage disequilibrium with rs3757713 (68 kb upstream of GPR22), which is associated with GPR22 expression levels in lymphoblast cell lines (P = 4 × 10−12). Immunohistochemistry experiments revealed that G protein–coupled receptor protein 22 (GPR22) was absent in normal mouse articular cartilage or synovium. However, GPR22-positive chondrocytes were found in the upper layers of the articular cartilage of mouse knee joints that were challenged with in vivo papain treatment or methylated bovine serum albumin treatment. GPR22-positive chondrocyte-like cells were also found in osteophytes in instability-induced OA.

Conclusion

Our findings identify a novel common variant on chromosome 7q22 that influences susceptibility to prevalence and progression of OA. Since the GPR22 gene encodes a G protein–coupled receptor, this is potentially an interesting therapeutic target.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

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