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University of Groningen Immunomodulatory properties of protein hydrolysates Kiewiet, Mensiena Berentje Geertje

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University of Groningen

Immunomodulatory properties of protein hydrolysates

Kiewiet, Mensiena Berentje Geertje

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: 2018

Link to publication in University of Groningen/UMCG research database

Citation for published version (APA):

Kiewiet, M. B. G. (2018). Immunomodulatory properties of protein hydrolysates. Rijksuniversiteit Groningen.

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Immunomodulatory properties

of protein hydrolysates

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The research described in this thesis was financially supported by the University Medical Centre Groningen and FrieslandCampina.

Financial support by the University of Groningen, University Medical Centre Groningen, and the Graduate School of Medical Sciences (GUIDE) for the printing of this thesis is gratefully acknowledged.

Layout Bianca Pijl, www.pijlldesign.nl,

Groningen, The Netherlands

Cover design/illustration Bianca Pijl Printed by Ipskamp Printing

Enschede, The Netherlands

ISBN 978-94-034-0336-6 (print)

978-94-034-0337-3 (digital)

© Copyright 2018 Mensiena Berentje Geertje Kiewiet, Groningen, The Netherlands All rights reserved. No part of this thesis may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without prior written permission of the author.

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Immunomodulatory properties

of protein hydrolysates

Proefschrift

ter verkrijging van de graad van doctor aan de Rijksuniversiteit Groningen

op gezag van de

rector magnificus, prof. dr. E. Sterken en volgens besluit van het College voor Promoties.

De openbare verdediging zal plaatsvinden op woensdag 17 januari 2018 om 16.15 uur

door

Mensiena Berentje Geertje Kiewiet

geboren op 22 oktober 1989 te Winschoten

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Promotor Prof. dr. P. de Vos  Copromotor Dr. M.M. Faas Beoordelingscommissie Prof. dr. H.J. Wichers  Prof. dr. A.J.W. Scheurink  Prof. dr. G.J. Navis

Paranimfen

Ineke van Zandbergen Manon Smand

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Table of contents Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 9 24 31 57 77 93 109 131 163 193 205 207 211 217 222 223 Immunomodulating properties of protein hydrolysates

for application in cow’s milk allergy Rational and outline of the thesis

Toll-like receptor mediated activation is possibly involved in immunoregulating properties of cow’s milk hydrolysates

Soy and wheat hydrolysates possess Toll-like receptor activating and inhibiting properties contributing to their immunomodulatory effects

The impact of soy hydrolysate on epithelial barrier integrity

Soy and whey hydrolysate induced cytokine expression in dendritic cells and intestinal epithelial cells

Identification of an immunomodulating protein fraction in soy and whey hydrolysates and its resistance to digestion in an infant gastrointestinal model system

Partially hydrolyzed whey proteins prevent clinical symptoms in a cow’s milk allergy mouse model and enhance regulatory T and B cell frequencies

Identification of a TLR2 inhibiting wheat hydrolysate for clinical nutrition

General discussion Appendices Summary Nederlandse samenvatting Dankwoord Curriculum vitae Publication List

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Financial support for this study was kindly given by the University Medical Center Groningen.. Printing of this thesis was financially supported by the University Medical Center

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