Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors

Virus-based tumour vaccines offer many advantages compared to other antigen-delivering systems. They generate concerted innate and adaptive immune response, and robust CD8+ T cell responses. We engineered a non-replicating pseudotyped influenza virus (S-FLU) to deliver the well-known cancer testis a...

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Main Authors: Kandasamy, M, Gileadi, U, Rijal, P, Tan, TK, Lee, LN, Chen, J, Prota, G, Klenerman, P, Townsend, A, Cerundolo, V
Format: Journal article
Language:English
Published: eLife Sciences Publications 2023
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author Kandasamy, M
Gileadi, U
Rijal, P
Tan, TK
Lee, LN
Chen, J
Prota, G
Klenerman, P
Townsend, A
Cerundolo, V
author_facet Kandasamy, M
Gileadi, U
Rijal, P
Tan, TK
Lee, LN
Chen, J
Prota, G
Klenerman, P
Townsend, A
Cerundolo, V
author_sort Kandasamy, M
collection OXFORD
description Virus-based tumour vaccines offer many advantages compared to other antigen-delivering systems. They generate concerted innate and adaptive immune response, and robust CD8+ T cell responses. We engineered a non-replicating pseudotyped influenza virus (S-FLU) to deliver the well-known cancer testis antigen, NY-ESO-1 (NY-ESO-1 S-FLU). Intranasal or intramuscular immunization of NY-ESO-1 S-FLU virus in mice elicited a strong NY-ESO-1-specific CD8+ T cell response in lungs and spleen that resulted in the regression of NY-ESO-1-expressing lung tumour and subcutaneous tumour, respectively. Combined administration with anti-PD-1 antibody, NY-ESO-1 S-FLU virus augmented the tumour protection by reducing the tumour metastasis. We propose that the antigen delivery through S-FLU is highly efficient in inducing antigen-specific CD8+ T cell response and protection against tumour development in combination with PD-1 blockade.
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spelling oxford-uuid:82b786bf-25a4-4b65-bcc4-dd227238eeb52023-11-20T17:18:52ZRecombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:82b786bf-25a4-4b65-bcc4-dd227238eeb5EnglishSymplectic ElementseLife Sciences Publications2023Kandasamy, MGileadi, URijal, PTan, TKLee, LNChen, JProta, GKlenerman, PTownsend, ACerundolo, VVirus-based tumour vaccines offer many advantages compared to other antigen-delivering systems. They generate concerted innate and adaptive immune response, and robust CD8+ T cell responses. We engineered a non-replicating pseudotyped influenza virus (S-FLU) to deliver the well-known cancer testis antigen, NY-ESO-1 (NY-ESO-1 S-FLU). Intranasal or intramuscular immunization of NY-ESO-1 S-FLU virus in mice elicited a strong NY-ESO-1-specific CD8+ T cell response in lungs and spleen that resulted in the regression of NY-ESO-1-expressing lung tumour and subcutaneous tumour, respectively. Combined administration with anti-PD-1 antibody, NY-ESO-1 S-FLU virus augmented the tumour protection by reducing the tumour metastasis. We propose that the antigen delivery through S-FLU is highly efficient in inducing antigen-specific CD8+ T cell response and protection against tumour development in combination with PD-1 blockade.
spellingShingle Kandasamy, M
Gileadi, U
Rijal, P
Tan, TK
Lee, LN
Chen, J
Prota, G
Klenerman, P
Townsend, A
Cerundolo, V
Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors
title Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors
title_full Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors
title_fullStr Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors
title_full_unstemmed Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors
title_short Recombinant single-cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti-tumour immunity with immune checkpoint inhibitors
title_sort recombinant single cycle influenza virus with exchangeable pseudotypes allows repeated immunization to augment anti tumour immunity with immune checkpoint inhibitors
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