Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor

Gastrointestinal stromal tumors (GISTs) harbor diverse immune cell populations but so far immunotherapy in patients has been disappointing. Here, we established cord blood humanized mouse models of localized and disseminated GIST to explore the remodeling of the tumor environment for improved immuno...

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Main Authors: Bo He, Larissa Dymond, Kira H. Wood, Edward R. Bastow, Jiulia Satiaputra, Ji Li, Anna Johansson-Percival, Juliana Hamzah, M. Priyanthi Kumarasinghe, Mohammed Ballal, Jonathan Foo, Mikael Johansson, Hooi C. Ee, Scott W. White, Louise Winteringham, Ruth Ganss
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:OncoImmunology
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Online Access:https://www.tandfonline.com/doi/10.1080/2162402X.2024.2406576
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author Bo He
Larissa Dymond
Kira H. Wood
Edward R. Bastow
Jiulia Satiaputra
Ji Li
Anna Johansson-Percival
Juliana Hamzah
M. Priyanthi Kumarasinghe
Mohammed Ballal
Jonathan Foo
Mikael Johansson
Hooi C. Ee
Scott W. White
Louise Winteringham
Ruth Ganss
author_facet Bo He
Larissa Dymond
Kira H. Wood
Edward R. Bastow
Jiulia Satiaputra
Ji Li
Anna Johansson-Percival
Juliana Hamzah
M. Priyanthi Kumarasinghe
Mohammed Ballal
Jonathan Foo
Mikael Johansson
Hooi C. Ee
Scott W. White
Louise Winteringham
Ruth Ganss
author_sort Bo He
collection DOAJ
description Gastrointestinal stromal tumors (GISTs) harbor diverse immune cell populations but so far immunotherapy in patients has been disappointing. Here, we established cord blood humanized mouse models of localized and disseminated GIST to explore the remodeling of the tumor environment for improved immunotherapy. Specifically, we assessed the ability of a cancer vascular targeting peptide (VTP) to bind to mouse and patient GIST angiogenic blood vessels and deliver the TNF superfamily member LIGHT (TNFS14) into tumors. LIGHT-VTP treatment of GIST in humanized mice improved vascular function and tumor oxygenation, which correlated with an overall increase in intratumoral human effector T cells. Concomitant with LIGHT-mediated vascular remodeling, we observed intratumoral high endothelial venules (HEVs) and tertiary lymphoid structures (TLS), which resemble spontaneous TLS found in GIST patients. Thus, by overcoming the limitations of immunodeficient xenograft models, we demonstrate the therapeutic feasibility of vascular targeting and immune priming in human GIST. Since TLS positively correlate with patient prognosis and improved response to immune checkpoint inhibition, vascular LIGHT targeting in GIST is a highly translatable approach to improve immunotherapeutic outcomes.
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spelling doaj-art-5f92efd8788044f3a874c385746f567f2024-12-03T13:49:34ZengTaylor & Francis GroupOncoImmunology2162-402X2024-12-0113110.1080/2162402X.2024.2406576Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumorBo He0Larissa Dymond1Kira H. Wood2Edward R. Bastow3Jiulia Satiaputra4Ji Li5Anna Johansson-Percival6Juliana Hamzah7M. Priyanthi Kumarasinghe8Mohammed Ballal9Jonathan Foo10Mikael Johansson11Hooi C. Ee12Scott W. White13Louise Winteringham14Ruth Ganss15Cancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaTranslational Cancer Research Program, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaCancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaCancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaCancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaCancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaCancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaImaging & Therapy Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaDepartment of Anatomical Pathology, PathWest QEII Medical Centre, Perth, Western AustraliaDepartment of General Surgery, Fiona Stanley Hospital, Western Australia, AustraliaDivision of Surgery, School of Medicine, University of Western Australia, Western Australia, AustraliaSir Charles Gairdner Hospital, QEII Medical Centre, Perth, Western Australia, AustraliaSir Charles Gairdner Hospital, QEII Medical Centre, Perth, Western Australia, AustraliaDivision of Obstetrics and Gynaecology, Faculty of Medicine, Dentistry, and Health Sciences, The University of Western Australia, Perth, Western Australia, AustraliaTranslational Cancer Research Program, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaCancer Microenvironment Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Perth, Western Australia, AustraliaGastrointestinal stromal tumors (GISTs) harbor diverse immune cell populations but so far immunotherapy in patients has been disappointing. Here, we established cord blood humanized mouse models of localized and disseminated GIST to explore the remodeling of the tumor environment for improved immunotherapy. Specifically, we assessed the ability of a cancer vascular targeting peptide (VTP) to bind to mouse and patient GIST angiogenic blood vessels and deliver the TNF superfamily member LIGHT (TNFS14) into tumors. LIGHT-VTP treatment of GIST in humanized mice improved vascular function and tumor oxygenation, which correlated with an overall increase in intratumoral human effector T cells. Concomitant with LIGHT-mediated vascular remodeling, we observed intratumoral high endothelial venules (HEVs) and tertiary lymphoid structures (TLS), which resemble spontaneous TLS found in GIST patients. Thus, by overcoming the limitations of immunodeficient xenograft models, we demonstrate the therapeutic feasibility of vascular targeting and immune priming in human GIST. Since TLS positively correlate with patient prognosis and improved response to immune checkpoint inhibition, vascular LIGHT targeting in GIST is a highly translatable approach to improve immunotherapeutic outcomes.https://www.tandfonline.com/doi/10.1080/2162402X.2024.2406576Gastrointestinal tumor (GIST)humanized miceLIGHT (TNFS14)tertiary lymphoid structures (TLS)vascular targeting
spellingShingle Bo He
Larissa Dymond
Kira H. Wood
Edward R. Bastow
Jiulia Satiaputra
Ji Li
Anna Johansson-Percival
Juliana Hamzah
M. Priyanthi Kumarasinghe
Mohammed Ballal
Jonathan Foo
Mikael Johansson
Hooi C. Ee
Scott W. White
Louise Winteringham
Ruth Ganss
Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor
OncoImmunology
Gastrointestinal tumor (GIST)
humanized mice
LIGHT (TNFS14)
tertiary lymphoid structures (TLS)
vascular targeting
title Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor
title_full Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor
title_fullStr Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor
title_full_unstemmed Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor
title_short Immune priming and induction of tertiary lymphoid structures in a cord-blood humanized mouse model of gastrointestinal stromal tumor
title_sort immune priming and induction of tertiary lymphoid structures in a cord blood humanized mouse model of gastrointestinal stromal tumor
topic Gastrointestinal tumor (GIST)
humanized mice
LIGHT (TNFS14)
tertiary lymphoid structures (TLS)
vascular targeting
url https://www.tandfonline.com/doi/10.1080/2162402X.2024.2406576
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