Particulate based vaccines for cancer immunotherapy Rodney Alexander Rosalia The research presented in this thesis was performed at the Department of Immuno­ hematology and Bloodtransfusion, Clinical Pharmacy and Toxicology of the Leiden University Medical Center and at the Leiden Academic Centre for Drug Research, Leiden, The Netherlands. Financial support for the publication of this thesis was provided by AZL Onderzoeks- en Ontwikkelingskrediet Apotheek, and ISA Pharmaceuticals, Leiden, The Netherlands. Cover design Andrew Ng, Rodney Rosalia Layout Renate Siebes, Proefschrift.nu Printed by Ipskamp Drukkers B.V. ISBN 978-94-9202-6026 © 2014 R.A. Rosalia All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage or retrieval system, without permission in writing from the author. The copyright of the articles that have been accepted for publication or that already have been published, has been transferred to the respective journals. Cover Page The handle http://hdl.handle.net/1887/28971 holds various files of this Leiden University dissertation Author: Rosalia, Rodney Alexander Title: Particulate based vaccines for cancer immunotherapy Issue Date: 2014-10-02 Particulate based vaccines for cancer immunotherapy Proefschrift ter verkrijging van de graad van Doctor aan de Universiteit Leiden, op gezag van Rector Magnificus prof. mr. C.J.J.M. Stolker, volgens besluit van het College voor Promoties te verdedigen op dinsdag 2 oktober 2014 klokke 13.45 uur door Rodney Alexander Rosalia geboren te Willemstad, Curaçao in 1981 Promotiecommissie Promotor Prof.dr. H-J. Guchelaar Prof.dr. F. Ossendorp Copromotor Dr. J. Oostendorp Overige leden Prof.dr. T. de Gruijl VUmc Amsterdam Prof.dr. W. Hennink UMC Utrecht Dr. T. van Hall Contents Chapter 1 Introduction 7 Chapter 2 Dendritic cells process synthetic long peptides better than whole 37 protein, improving antigen presentation and T-cell activation Chapter 3 Optimization of encapsulation of a synthetic long peptide in PLGA 71 nanoparticles: low burst release is crucial for efficient CD8+ T cell activation Chapter 4 Co-encapsulation of synthetic long peptide antigen and Toll like 95 receptor 2 ligand in poly-(lactic-co-glycolic-acid) particles results in sustained MHC class I cross-presentation by dendritic cells Chapter 5 Efficient ex vivo induction of T cells with potent anti-tumor activity 123 by protein antigen encapsulated in nanoparticles Chapter 6 Poly-(lactic-co-glycolic-acid)-based particulate vaccines: nano-size is 153 a key parameter for dendritic cell uptake and immune activation Chapter 7 CD40-targeted dendritic cell delivery of PLGA-nanoparticle vaccine 183 induce potent anti-tumor responses Chapter 8 Targeting nanoparticles to CD40, DEC-205 or CD11c molecules on 213 DC for efficient CD8 T cell responses; a comparative study + Chapter 9 Discussion 243 Chapter 10 English summary – Nederlandse samenvatting 261 Chapter 11 Dankwoord, Acknowledgements & Palabranan di Danki vitae 273 Chapter 12 Curriculum vitae 281 Chapter 13 Publication list 283