Cited by 98Immune Cell Function and InteractionImmune cells in cancerCancer Immunotherapy and Biomarkers

Phenotypic and Functional Dysregulated Blood NK Cells in Colorectal Cancer Patients Can Be Activated by Cetuximab Plus IL-2 or IL-15

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Rocca, Yamila Sol, Roberti, María Paula, Juliá, Estefanía Paula, Pampena, María Betina, Bruno, Luisina, Rivero, Sergio, Huertas, Eduardo, Sánchez Loria, Fernando +4 more·2016·Frontiers in Immunology

Abstract

The clinical outcome of colorectal cancer (CRC) is associated with the immune response; thus, these tumors could be responsive to different immune therapy approaches. Natural killer (NK) cells are key antitumor primary effectors that can eliminate CRC cells without prior immunization. We previously determined that NK cells from the local tumor environment of CRC tumors display a profoundly altered phenotype compared with circulating NK cells from healthy donors (HD). In this study, we evaluated peripheral blood NK cells from untreated patients and their possible role in metastasis progression. We observed profound deregulation in receptor expression even in early stages of disease compared with HD. CRC-NK cells displayed underexpression of CD16, NKG2D, DNAM-1, CD161, NKp46, and NKp30 activating receptors, while inhibitory receptors CD85j and NKG2A were overexpressed. This inhibited phenotype affected cytotoxic functionality against CRC cells and interferon-γ production. We also determined that NKp30 and NKp46 are the key receptors involved in detriment of CRC-NK cells' antitumor activity. Moreover, NKp46 expression correlated with relapse-free survival of CRC patients with a maximum follow-up of 71 months. CRC-NK cells also exhibited altered antibody-dependent cellular cytotoxicity function responding poorly to cetuximab. IL-2 and IL-15 in combination with cetuximab stimulated NK cell, improving cytotoxicity. These results show potential strategies to enhance CRC-NK cell activity.

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Authors
Rocca, Y. S., Roberti, M. P., Juliá, E. P., Pampena, M. B., Bruno, L., Rivero, S., Huertas, E., Sánchez Loria, F., Pairola, A., Caignard, A., Mordoh, J., & Levy, E. M.
Affiliations
  • Fundación Instituto Leloir (AR)
  • Fundación para la Investigación, Docencia y Prevención del Cáncer (AR)
  • Instituto Alexander Fleming (AR)
  • Inserm (FR)
Corresponding author
Levy, Estrella Mariel
Venue
Frontiers in Immunology
Published
2016-10-10
Volume
7
Pages
413-413
ISSN
1664-3224 (ISSN-L)
OpenAlex
W2529369867
Cited by
97
References
59
Citations by year
2026: 7 · 2025: 10 · 2024: 9 · 2023: 10 · 2022: 11 · 2021: 13 · 2020: 7 · 2019: 10 · 2018: 10 · 2017: 10
FWCI
6.05
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Greater South Information System
Funders
  • Fundación Sales
  • Consejo Nacional de Investigaciones Científicas y Técnicas
  • Agencia Nacional de Promoción Científica y Tecnológica
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
colorectal cancer, natural killer cells, NK cell receptor expression, NKp46, NKp30, cetuximab, interleukin-2, IL-15, antibody-dependent cellular cytotoxicity, interferon-gamma, tumor immune evasion, relapse-free survival, antitumor immunity

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