Tumor-Derived Extracellular Vesicles Impair CD171-Specific CD4
immunotherapy
neuroblastoma
neurotrophic receptor tyrosine kinase
pediatric oncology
solid tumors
Journal
Frontiers in immunology
ISSN: 1664-3224
Titre abrégé: Front Immunol
Pays: Switzerland
ID NLM: 101560960
Informations de publication
Date de publication:
2020
2020
Historique:
received:
13
12
2019
accepted:
09
03
2020
entrez:
17
4
2020
pubmed:
17
4
2020
medline:
27
3
2021
Statut:
epublish
Résumé
Chimeric antigen receptor (CAR) T cell efficacy against solid tumors is currently limited by several immune escape mechanisms, which may include tumor-derived extracellular vesicles. Advanced neuroblastoma is an aggressive childhood tumor without curative treatment options for most relapsed patients today. We here evaluated the role of tumor-derived extracellular vesicles on the efficacy of CAR T cells targeting the neuroblastoma-specific antigen, CD171. For this purpose, CAR T cell activation, cytokine production, exhaustion, and tumor cell-directed cytotoxicity upon co-culture was evaluated. Tumor-derived extracellular vesicles isolated from SH-SY5Y neuroblastoma cells neither affected CAR T cell activation nor expression of inhibitory markers. Importantly, exposure of CD4
Identifiants
pubmed: 32296437
doi: 10.3389/fimmu.2020.00531
pmc: PMC7137471
doi:
Substances chimiques
Antigens, Neoplasm
0
Receptors, Chimeric Antigen
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
531Informations de copyright
Copyright © 2020 Ali, Toews, Schwiebert, Klaus, Winkler, Grunewald, Oevermann, Deubzer, Tüns, Jensen, Henssen, Eggert, Schulte, Schwich, Rebmann, Schramm and Künkele.
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