About the Authors

Maria C. Lebre

Contributed equally to this work with: Maria C. Lebre, Clarissa E. Vergunst

c.lebre@amc.uva.nl

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Clarissa E. Vergunst

Contributed equally to this work with: Maria C. Lebre, Clarissa E. Vergunst

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Ivy Y. K. Choi

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Saïda Aarrass

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Ana S. F. Oliveira

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Tim Wyant

Affiliation Millennium Pharmaceuticals, Cambridge, Massachusetts, United States of America

Richard Horuk

Affiliation Department of Pharmacology, University of California Davis, Davis, California, United States of America

Kris A. Reedquist

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Paul P. Tak

Affiliation Division of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands

Competing Interests

The authors have the following competing interests: Prof. Tak has received support from AstraZeneca, Chemocentryx, Millennium, Novartis, Pfizer, and Schering-Plough for conducting clinical trials with chemokine and chemokine receptor antagonists. The above mentioned support is not directly related to this particular study. Dr. T. Wyant is an employee of Millennium Pharmaceuticals and contributed with reagents and with the writing of the manuscript. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: MCL CEV KAR TW RH PPT. Performed the experiments: MCL SA ASFO. Analyzed the data: MCL CEV PPT. Contributed reagents/materials/analysis tools: TW RH. Wrote the paper: MCL CEV IYKC PPT.