IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation

ABSTRACTImmune checkpoint inhibitors that overcome T cell suppressive mechanisms in tumors have revolutionized the treatment of cancer but are only efficacious in a small subset of patients. Targeting suppressive mechanisms acting on innate immune cells could significantly improve the incidence of c...

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Main Authors: John P. Dowling, Pavel A. Nikitin, Fang Shen, Halley Shukla, James P. Finn, Nirja Patel, Cezary Swider, Jamie L. Bingaman-Steele, Chris Nicolescu, Eden L Sikorski, Evan J. Greenawalt, Michael J. Morin, Matthew K. Robinson, Karen Lundgren, Benjamin C. Harman
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:mAbs
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/19420862.2023.2212673
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author John P. Dowling
Pavel A. Nikitin
Fang Shen
Halley Shukla
James P. Finn
Nirja Patel
Cezary Swider
Jamie L. Bingaman-Steele
Chris Nicolescu
Eden L Sikorski
Evan J. Greenawalt
Michael J. Morin
Matthew K. Robinson
Karen Lundgren
Benjamin C. Harman
author_facet John P. Dowling
Pavel A. Nikitin
Fang Shen
Halley Shukla
James P. Finn
Nirja Patel
Cezary Swider
Jamie L. Bingaman-Steele
Chris Nicolescu
Eden L Sikorski
Evan J. Greenawalt
Michael J. Morin
Matthew K. Robinson
Karen Lundgren
Benjamin C. Harman
author_sort John P. Dowling
collection DOAJ
description ABSTRACTImmune checkpoint inhibitors that overcome T cell suppressive mechanisms in tumors have revolutionized the treatment of cancer but are only efficacious in a small subset of patients. Targeting suppressive mechanisms acting on innate immune cells could significantly improve the incidence of clinical response by facilitating a multi-lineage response against the tumor involving both adaptive and innate immune systems. Here, we show that intra-tumoral interleukin (IL)-38 expression is a feature of a large frequency of head and neck, lung and cervical squamous cancers and correlates with reduced immune cell numbers. We generated IMM20324, an antibody that binds human and mouse IL-38 proteins and inhibits the binding of IL-38 to its putative receptors, interleukin 1 receptor accessory protein-like 1 (IL1RAPL) and IL-36R. In vivo, IMM20324 demonstrated a good safety profile, delayed tumor growth in a subset of mice in an EMT6 syngeneic model of breast cancer, and significantly inhibited tumor expansion in a B16.F10 melanoma model. Notably, IMM20324 treatment resulted in the prevention of tumor growth following re-implantation of tumor cells, indicating the induction of immunological memory. Furthermore, exposure of IMM20324 correlated with decreased tumor volume and increased levels of intra-tumoral chemokines. Together, our data suggest that IL-38 is expressed in a high frequency of cancer patients and allows tumor cells to suppress anti-tumor immunity. Blockade of IL-38 activity using IMM20324 can re-activate immunostimulatory mechanisms in the tumor microenvironment leading to immune infiltration, the generation of tumor-specific memory and abrogation of tumor growth.
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spelling doaj.art-687ffc074dce4fcdb4a25e4af9665e762024-01-13T11:27:51ZengTaylor & Francis GroupmAbs1942-08621942-08702023-12-0115110.1080/19420862.2023.2212673IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activationJohn P. Dowling0Pavel A. Nikitin1Fang Shen2Halley Shukla3James P. Finn4Nirja Patel5Cezary Swider6Jamie L. Bingaman-Steele7Chris Nicolescu8Eden L Sikorski9Evan J. Greenawalt10Michael J. Morin11Matthew K. Robinson12Karen Lundgren13Benjamin C. Harman14Research & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAResearch & Development, Immunome Inc, Exton, PA, USAABSTRACTImmune checkpoint inhibitors that overcome T cell suppressive mechanisms in tumors have revolutionized the treatment of cancer but are only efficacious in a small subset of patients. Targeting suppressive mechanisms acting on innate immune cells could significantly improve the incidence of clinical response by facilitating a multi-lineage response against the tumor involving both adaptive and innate immune systems. Here, we show that intra-tumoral interleukin (IL)-38 expression is a feature of a large frequency of head and neck, lung and cervical squamous cancers and correlates with reduced immune cell numbers. We generated IMM20324, an antibody that binds human and mouse IL-38 proteins and inhibits the binding of IL-38 to its putative receptors, interleukin 1 receptor accessory protein-like 1 (IL1RAPL) and IL-36R. In vivo, IMM20324 demonstrated a good safety profile, delayed tumor growth in a subset of mice in an EMT6 syngeneic model of breast cancer, and significantly inhibited tumor expansion in a B16.F10 melanoma model. Notably, IMM20324 treatment resulted in the prevention of tumor growth following re-implantation of tumor cells, indicating the induction of immunological memory. Furthermore, exposure of IMM20324 correlated with decreased tumor volume and increased levels of intra-tumoral chemokines. Together, our data suggest that IL-38 is expressed in a high frequency of cancer patients and allows tumor cells to suppress anti-tumor immunity. Blockade of IL-38 activity using IMM20324 can re-activate immunostimulatory mechanisms in the tumor microenvironment leading to immune infiltration, the generation of tumor-specific memory and abrogation of tumor growth.https://www.tandfonline.com/doi/10.1080/19420862.2023.2212673cancerIL-1 familyIL-38inflammationinnate immunity
spellingShingle John P. Dowling
Pavel A. Nikitin
Fang Shen
Halley Shukla
James P. Finn
Nirja Patel
Cezary Swider
Jamie L. Bingaman-Steele
Chris Nicolescu
Eden L Sikorski
Evan J. Greenawalt
Michael J. Morin
Matthew K. Robinson
Karen Lundgren
Benjamin C. Harman
IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation
mAbs
cancer
IL-1 family
IL-38
inflammation
innate immunity
title IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation
title_full IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation
title_fullStr IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation
title_full_unstemmed IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation
title_short IL-38 blockade induces anti-tumor immunity by abrogating tumor-mediated suppression of early immune activation
title_sort il 38 blockade induces anti tumor immunity by abrogating tumor mediated suppression of early immune activation
topic cancer
IL-1 family
IL-38
inflammation
innate immunity
url https://www.tandfonline.com/doi/10.1080/19420862.2023.2212673
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