Selective targeting of IL2Rβγ combined with radiotherapy triggers CD8- and NK-mediated immunity, abrogating metastasis in HNSCC.
IL-2
Tregs
cancer
head and neck cancer
immunocytokine
immunotherapy
metastasis
natural killer cells
radiation therapy
tumor immunology
Journal
Cell reports. Medicine
ISSN: 2666-3791
Titre abrégé: Cell Rep Med
Pays: United States
ID NLM: 101766894
Informations de publication
Date de publication:
15 08 2023
15 08 2023
Historique:
received:
06
07
2022
revised:
21
04
2023
accepted:
18
07
2023
medline:
18
8
2023
pubmed:
17
8
2023
entrez:
16
8
2023
Statut:
ppublish
Résumé
The implementation of cancer immunotherapies has seen limited clinical success in head and neck squamous cell carcinoma (HNSCC). Interleukin-2 (IL-2), which modulates the survival and functionality of lymphocytes, is an attractive target for new immunotherapies but one that is limited by presence of regulatory T cells (Tregs) expressing the high-affinity IL-2Rα. The bispecific immunocytokine PD1-IL2v preferentially delivers IL-2 signaling through IL-2Rβγ on PD-1-expressing cells. Selectively targeting the intermediate-affinity IL-2Rβγ can be leveraged to induce anti-tumor immune responses in effector T cells and natural killer (NK) cells while limiting the negative regulation of IL-2Rα activation on Tregs. Using radiation therapy (RT) in combination with PD1-IL2v improves local tumor control and survival, and controls metastatic spread in orthotopic HNSCC tumor models. PD1-IL2v drives systemic activation and expansion of circulating and tumor-infiltrating cytotoxic T cells and NK cells while limiting Treg-mediated immunosuppression. These data show that PD1-L2v induces durable systemic tumor control in HNSCC.
Identifiants
pubmed: 37586327
pii: S2666-3791(23)00303-8
doi: 10.1016/j.xcrm.2023.101150
pmc: PMC10439274
pii:
doi:
Substances chimiques
Interleukin-2
0
Interleukin-2 Receptor alpha Subunit
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
101150Subventions
Organisme : NCI NIH HHS
ID : P50 CA261605
Pays : United States
Organisme : NCI NIH HHS
ID : P50 CA261605
Pays : United States
Organisme : NIDCR NIH HHS
ID : R01 DE028282
Pays : United States
Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests M.A., L.C.D., P.U., and C.K. are employed by Roche Innovation Center Zurich and declare ownership of stock and patents with Roche. S.D.K. receives funding from NIDCR/NCI in addition to clinical trial funding from AstraZeneca, Genentech, and Ionis outside the submitted work. S.D.K. reports no personal payment in consulting, advisory boards, clinical trials, or any other relevant financial disclosures. A.D. is a founder of Omix Technologies Inc. and Altis Biosciences. A.D. is a scientific advisory board member for Hemanext Inc., Macopharma Inc., and Forma Therapeutics.
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