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University of Groningen B cells in ANCA-associated vasculitides von Borstel, Anouk

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University of Groningen

B cells in ANCA-associated vasculitides

von Borstel, Anouk

DOI:

10.33612/diss.93537940

IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite from it. Please check the document version below.

Document Version

Publisher's PDF, also known as Version of record

Publication date: 2019

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

von Borstel, A. (2019). B cells in ANCA-associated vasculitides: from pathogenic players to biomarkers. University of Groningen. https://doi.org/10.33612/diss.93537940

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B cells in ANCA-associated Vasculitides

From Pathogenic Players to Biomarkers

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The research presented in this thesis was financially supported by:

The printing of this thesis was financially supported by:

Cover Design: Nikki Vermeulen - Ridderprint Lay-out: Nikki Vermeulen - Ridderprint Printing: Ridderprint - www.ridderprint.nl ISBN: 978-94-034-1866-7 (printed version) 978-94-034-1865-0 (electronic version)

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B cells in ANCA-associated Vasculitides

From Pathogenic Players to Biomarkers

PhD thesis

to obtain the degree of PhD at the University of Groningen

on the authority of the Rector Magnificus Prof. C. Wijmenga

And in accordance with the decision by the College of Deans. This thesis will be defended in public on Wednesday 11 September 2019 at 12:45 hours

by

Anouk von Borstel born on 7 May 1991 in Luzern, Switzerland

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Supervisors

Prof. P. Heeringa Prof. C.A. Stegeman

Co-supervisors

Dr. J.S.F. Sanders Dr. W.H. Abdulahad

Assessment Committee

Prof. N.A. Bos Prof. L.B. Hilbrands Prof. J.D. Laman

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Paranymphs

Dr. Olaf Perdijk Gerjan Dekkema

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Table of Contents

Chapter 1

General Introduction and Aims of this Thesis 9

Chapter 2

Cellular Immune Regulation in the Pathogenesis of ANCA-associated 21

Vasculitides

Chapter 3

Circulating CD24hiCD38hi Regulatory B cells Correlate Inversely with the 39

ThEM17 cell Frequency in Granulomatosis with Polyangiitis Patients

Chapter 4

Evidence for Enhanced Bruton’s Tyrosine Kinase Activity in 55

Transitional and Naïve B cells of Patients with Granulomatosis with Polyangiitis

Chapter 5

Mycophenolic Acid and 6-Mercaptopurine both Inhibit B cell Proliferation in 83

Granulomatosis with Polyangiitis Patients, whereas Only Mycophenolic Acid Inhibits B cell IL-6 Production

Chapter 6

Plasmablast Frequency during Remission Predicts Relapsing Disease in 99

Granulomatosis with Polyangiitis Patients

Chapter 7

Summary, General Discussion and Future Perspectives 115

References 129

Chapter 8

Nederlandse Samenvatting 144

Curriculum Vitae 148

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