Cited by 54Immune Cell Function and InteractionImmunotherapy and Immune ResponsesColorectal Cancer Treatments and Studies

In Vivo Efficacy of Umbilical Cord Blood Stem Cell-Derived NK Cells in the Treatment of Metastatic Colorectal Cancer

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Veluchamy, John P., Lopez-Lastra, Silvia, Spanholtz, Jan, Bohme, Fenna, Kok, Nina, Heideman, Daniëlle A. M., Verheul, Henk M. W., Di Santo, James P. +2 more·2017·Frontiers in Immunology

Abstract

Therapeutic monoclonal antibodies (mAbs) against the epidermal growth factor receptor (EGFR) act by inhibiting EGFR downstream signaling and by eliciting an NK cell-mediated anti-tumor response. The IgG1 mAb cetuximab has been used for treatment of RASwt metastatic colorectal cancer (mCRC) patients, showing limited efficacy. In the present study we address the potential of adoptive NK cell therapy to overcome these limitations investigating two allogeneic NK cell products, i.e. activated peripheral blood NK cells (A-PBNK) and umbilical cord blood stem cell derived NK cells (UCB-NK). While cetuximab monotherapy was not effective against EGFR- RASwt, EGFR+ RASmut and EGFR+ BRAFmut cells, A-PBNK were able to initiate lysis of EGFR+ colon cancer cells irrespective of RAS or BRAF status. Cytotoxic effects of A-PBNK (but not UCB-NK) were further potentiated significantly by coating EGFR+ colon cancer cells with cetuximab. Of note, a significantly higher cytotoxicity was induced by UCB-NK in EGFR-RASwt (42 ± 8% versus 67 ± 7%), EGFR+ RASmut (20 ± 2% versus 37 ± 6%) and EGFR+ BRAFmut (23 ± 3% versus 43 ± 7%) colon cancer cells compared to A-PBNK and equaled the cytotoxic efficacy of the combination of A-PBNK and cetuximab. The anti-tumor efficacy of UCB-NK cells against cetuximab resistant human EGFR+ RASmut colon cancer cells was further confirmed in an in vivo preclinical mouse model where UCB-NK showed enhanced anti-tumor cytotoxicity against colon cancer independent of EGFR and RAS status. As UCB-NK have been proven safe in a recently conducted phase I clinical trial in acute myeloid leukemia, a fast translation into clinical proof of concept for mCRC could be considered.

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Authors
Veluchamy, J. P., Lopez-Lastra, S., Spanholtz, J., Bohme, F., Kok, N., Heideman, D. A. M., Verheul, H. M. W., Di Santo, J. P., de Gruijl, T. D., & van der Vliet, H. J.
Affiliations
  • Cancer Center Amsterdam (NL)
  • Amsterdam UMC Location Vrije Universiteit Amsterdam (NL)
Venue
Frontiers in Immunology
Published
2017-02-06
Volume
8
Pages
87-87
ISSN
1664-3224 (ISSN-L)
OpenAlex
W2586986504
Cited by
54
References
47
Citations by year
2026: 2 · 2025: 1 · 2024: 7 · 2023: 6 · 2022: 4 · 2021: 13 · 2020: 7 · 2019: 3 · 2018: 7 · 2017: 4
FWCI
2.60
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)
  • Pure Amsterdam UMC (publishedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
Agence Nationale de la Recherche (ANR-11-INBS-0006)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Treatments and Studies
Keywords
adoptive NK cell therapy, metastatic colorectal cancer, cetuximab, EGFR, RAS mutations, BRAF mutation, cetuximab resistance, allogeneic NK cells, NK cell cytotoxicity, antitumor immunity

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