The Rational Development of CD133-Targeting Immunotherapies for Glioblastoma.
CD133
GBM
IgG
chimeric antigen receptor T cells
dual-antigen T cell engagers
glioblastoma
humanized mice
immunotherapy
Journal
Cell stem cell
ISSN: 1875-9777
Titre abrégé: Cell Stem Cell
Pays: United States
ID NLM: 101311472
Informations de publication
Date de publication:
04 06 2020
04 06 2020
Historique:
received:
28
03
2019
revised:
16
12
2019
accepted:
14
04
2020
pubmed:
29
5
2020
medline:
28
4
2021
entrez:
29
5
2020
Statut:
ppublish
Résumé
CD133 marks self-renewing cancer stem cells (CSCs) in a variety of solid tumors, and CD133+ tumor-initiating cells are known markers of chemo- and radio-resistance in multiple aggressive cancers, including glioblastoma (GBM), that may drive intra-tumoral heterogeneity. Here, we report three immunotherapeutic modalities based on a human anti-CD133 antibody fragment that targets a unique epitope present in glycosylated and non-glycosylated CD133 and studied their effects on targeting CD133+ cells in patient-derived models of GBM. We generated an immunoglobulin G (IgG) (RW03-IgG), a dual-antigen T cell engager (DATE), and a CD133-specific chimeric antigen receptor T cell (CAR-T): CART133. All three showed activity against patient-derived CD133+ GBM cells, and CART133 cells demonstrated superior efficacy in patient-derived GBM xenograft models without causing adverse effects on normal CD133+ hematopoietic stem cells in humanized CD34+ mice. Thus, CART133 cells may be a therapeutically tractable strategy to target CD133+ CSCs in human GBM or other treatment-resistant primary cancers.
Identifiants
pubmed: 32464096
pii: S1934-5909(20)30147-8
doi: 10.1016/j.stem.2020.04.008
pii:
doi:
Substances chimiques
AC133 Antigen
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
832-844.e6Subventions
Organisme : CIHR
Pays : Canada
Informations de copyright
Copyright © 2020 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Interests P.V., C.V., R.W., J.M., and S.S. have patents around CD133 binding agents and uses thereof. These patents include Canadian Patent Application no. 2,962,157; Chinese Patent Application no. 2017800782373; European Patent Application no. EP17863201; Japanese Patent Application no. 2019-521046; and U.S. Patent Application no. 16/342,807. P.V., C.V., J.M., and S.S. are also shareholders of Empirica Therapeutics, which has an exclusive license to the IP as mentioned above. P.V. and D.B. are employees of Empirica Therapeutics.