Thesis Suzanne Castenmiller

On 5 September 2025 (4:00 PM) Sanquin researcher Suzanne Castenmiller expects to defend her PhD-thesis "Adding color to the white bag; Exploring the potential of TIL products generated from human solid tumors" at the University of Amsterdam

Promotor: MC Wolkers PhD

Copromotor: R de Groot PhD

Venue: Agnietenkapel, University of Amsterdam

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Abstract

TIL therapy uses the patients own immune system to treat cancer lesions. After surgical resection of a tumor lesion, T cells are isolated and expanded ex vivo, to generate tumor reactive TIL products.
In this thesis, we explored the potential to generate tumor reactive TIL products from non-small cell lung cancer (NSCLC) and neuroblastoma tumor lesions. NSCLC is an immunogenic tumor type, with a high mutational burden and high immune infiltrate, which mainly affects the adult patient population. On the contrary, neuroblastoma is a non-immunogenic tumor, with a low mutational burden and low immune infiltrate in the tumor, which mainly affects the pediatric patients populations. For both tumor types, we could generate tumor responsive TIL products. However, whereas the αβ T cells were the main effector cells in TIL products generated from NSCLC, γδ T cells were the main effector cells in TIL products generated from neuroblastoma lesions.
This thesis provides new insights in the working mechanism of TIL therapy, and helps to define tumor reactive T cells from different tumor types.

Chapters

Chapter 1

General Introduction

Chapter 2

Effective generation of tumor-infiltrating lymphocyte products from metastatic non-small-cell lung cancer (NSCLC) lesions irrespective of location and previous treatments abstract

Chapter 3

Tertiary lymphoid structure-related immune infiltrates in NSCLC tumor lesions correlate with low tumor-reactivity of TIL products abstract

Chapter 4

γδT cells are the prime anti-tumoral T cells in pediatric

Chapter 5

Generation of TIL products from bone marrow metastases of pediatric neuroblastoma patients

Chapter 6

General discussion
 

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Cover of PhD thesis by Suzanne Castenmiller