Cited by 18Immunotherapy and Immune ResponsesCancer Immunotherapy and BiomarkersColorectal Cancer Treatments and Studies

Activation of innate-adaptive immune machinery by poly(I:C) exposes a therapeutic vulnerability to prevent relapse in stroma-rich colon cancer

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Corry, Shania M, McCorry, Amy MB, Lannagan, Tamsin RM, Leonard, Niamh A, Fisher, Natalie C, Byrne, Ryan M, Tsantoulis, Petros, Cortes-Lavaud, Xabier +26 more·2022·Gut

Abstract

Objective: Stroma-rich tumours represent a poor prognostic subtype in stage II/III colon cancer (CC), with high relapse rates and limited response to standard adjuvant chemotherapy. Design: To address the lack of efficacious therapeutic options for patients with stroma-rich CC, we stratified our human tumour cohorts according to stromal content, enabling identification of the biology underpinning relapse and potential therapeutic vulnerabilities specifically within stroma-rich tumours that could be exploited clinically. Following human tumour-based discovery and independent clinical validation, we use a series of in vitro and stroma-rich in vivo models to test and validate the therapeutic potential of elevating the biology associated with reduced relapse in human tumours. Results: By performing our analyses specifically within the stroma-rich/high-fibroblast (HiFi) subtype of CC, we identify and validate the clinical value of a HiFi-specific prognostic signature (HPS), which stratifies tumours based on STAT1-related signalling (High-HPS v Low-HPS=HR 0.093, CI 0.019 to 0.466). Using in silico, in vitro and in vivo models, we demonstrate that the HPS is associated with antigen processing and presentation within discrete immune lineages in stroma-rich CC, downstream of double-stranded RNA and viral response signalling. Treatment with the TLR3 agonist poly(I:C) elevated the HPS signalling and antigen processing phenotype across in vitro and in vivo models. In an in vivo model of stroma-rich CC, poly(I:C) treatment significantly increased systemic cytotoxic T cell activity (p<0.05) and reduced liver metastases (p<0.0002). Conclusion: This study reveals new biological insight that offers a novel therapeutic option to reduce relapse rates in patients with the worst prognosis CC.

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Crossref · 10.1136/gutjnl-2021-326183

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  • The pro-inflammatory TLR3 agonist poly I:C augmented the antitumour immune response in a mouse model of stroma-rich metastatic colorectal cancer, and a TLR3-related gene expression signature associated with a better prognosis of patients with stroma-rich colorectal cancer.

    “For example, the pro-inflammatory Toll-like receptor 3 (TLR3) agonist polyinosinic:polycytidylic acid (poly I:C) augmented the antitumour immune response in a mouse model of stroma-rich metastatic CRC and a TLR3-related gene expression signature associated with a better prognosis of patients with stroma-rich CRC.175”
  • The stroma-rich hallmark of CMS4 colorectal cancer may represent a promising therapeutic vulnerability.

    “Thus, the stroma-rich hallmark of CMS4 colorectal cancer may represent a promising therapeutic vulnerability, as suggested by Dunne and colleagues (73).”

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  1. [30]Calon A, Espinet E, Palomo-Ponce S, et al. Dependency of colorectal cancer on a TGF-β-driven program in stromal cells for metastasis initiation. Cancer Cell 2012; 22: 571– 84. 10.1016/j.ccr.2012.08.013 23153532 PMC3512565 · DOI · Paper page
  2. [40]Marisa L, de Reyniès A, Duval A, et al. Gene expression classification of colon cancer into molecular subtypes: characterization, validation, and prognostic value. PLoS Med 2013; 10: e1001453. 10.1371/journal.pmed.1001453 23700391 PMC3660251 · DOI · Paper page

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Authors
Corry, S. M., McCorry, A. M., Lannagan, T. R., Leonard, N. A., Fisher, N. C., Byrne, R. M., Tsantoulis, P., Cortes-Lavaud, X., Amirkhah, R., Redmond, K. L., McCooey, A. J., Malla, S. B., Rogan, E., Sakhnevych, S., Gillespie, M. A., White, M., Richman, S. D., Jackstadt, R.-F., Campbell, A. D., Maguire, S., consortia, S. A. A., McDade, S. S., Longley, D. B., Loughrey, M. B., Coleman, H. G., Kerr, E. M., Tejpar, S., Maughan, T., Leedham, S. J., Small, D. M., Ryan, A. E., Sansom, O. J., Lawler, M., & Dunne, P. D.
Affiliations
  • Queen's University Belfast (GB)
  • Cancer Research UK (GB)
  • National University of Ireland (IE)
  • University of Geneva (CH)
  • Cancer Research UK, Beatson Institute for Cancer Research, Glasgow, UK
  • University of Leeds (GB)
  • German Cancer Research Center (DE)
  • Universitair Ziekenhuis Leuven (BE)
  • Department of Oncology, University of Oxford, Oxford, UK
  • Ollscoil na Gaillimhe – University of Galway (IE)
Corresponding author
Dunne, Philip D
Venue
Gut
Publisher
BMJ
Published
2022-04-27
Volume
71
Issue
12
Pages
2502-2517
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W4225003814
Cited by
18
References
57
Citations by year
2026: 2 · 2025: 5 · 2024: 9 · 2023: 2
FWCI
1.52
Type
journal article
Language
en
Open access
Locations
  • Gut (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion, cc-by-sa)
  • Lirias (KU Leuven) (submittedVersion, other-oa)
  • Research Portal (Queen's University Belfast) (submittedVersion, cc-by)
Funders
  • Medical Research Council (MR/M016587/1)
  • Cancer Research UK (A17196, A26825, A28223, A29834, A31287)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Treatments and Studies
Keywords
poly(I:C), TLR3 agonist, antigen processing and presentation, innate-adaptive immune crosstalk, liver metastasis, relapse prevention, prognostic signature, cytotoxic T lymphocytes, adjuvant therapy
MeSH terms
Colonic Neoplasms, Humans, Neoplasm Recurrence, Local, Prognosis, Biomarkers, Tumor, Stromal Cells

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