Cited by 142Immune Cell Function and Interaction3D Printing in Biomedical ResearchCancer Immunotherapy and Biomarkers

Evaluating natural killer cell cytotoxicity against solid tumors using a microfluidic model

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Ayuso, Jose M., Truttschel, Regan, Gong, Max M., Humayun, Mouhita, Virumbrales-Munoz, Maria, Vitek, Ross, Felder, Mildred, Gillies, Stephen D. +5 more·2019·OncoImmunology

Abstract

Immunotherapies against solid tumors face additional challenges compared with hematological cancers. In solid tumors, immune cells and antibodies need to extravasate from vasculature, find the tumor, and migrate through a dense mass of cells. These multiple steps pose significant obstacles for solid tumor immunotherapy and their study has remained difficult using classic in vitro models based on Petri dishes. In this work, a microfluidic model has been developed to study natural killer cell response. The model includes a 3D breast cancer spheroid in a 3D extracellular matrix, and two flanking lumens lined with endothelial cells, replicating key structures and components during the immune response. Natural Killer cells and antibodies targeting the tumor cells were either embedded in the matrix or perfused through the lateral blood vessels. Antibodies that were perfused through the lateral lumens extravasated out of the blood vessels and rapidly diffused through the matrix. However, tumor cell-cell junctions hindered antibody penetration within the spheroid. On the other hand, natural killer cells were able to detect the presence of the tumor spheroid several hundreds of microns away and penetrate the spheroid faster than the antibodies. Once inside the spheroid, natural killer cells were able to destroy tumor cells at the spheroid periphery and, importantly, also at the innermost layers. Finally, the combination of antibody-cytokine conjugates and natural killer cells led to an enhanced cytotoxicity located mostly at the spheroid periphery. Overall, these results demonstrate the utility of the model for informing immunotherapy of solid tumors.

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  • In a breast cancer-on-chip model, natural killer-cell attraction was mediated by specific chemokine ligand/receptor interactions.

    “In a breast CoC model, it was found that NK-cell attraction was mediated by specific chemokine ligand/receptor interactions [106].”

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Authors
Ayuso, J. M., Truttschel, R., Gong, M. M., Humayun, M., Virumbrales-Munoz, M., Vitek, R., Felder, M., Gillies, S. D., Sondel, P., Wisinski, K. B., Patankar, M., Beebe, D. J., & Skala, M. C.
Affiliations
  • Morgridge Institute for Research, Madison, WI, USA
  • University of Wisconsin–Madison (US)
  • Provenance Biopharmaceuticals Corp., Carlisle, MA USA
Venue
OncoImmunology
Published
2018-12-12
Volume
8
Issue
3
Pages
1553477
ISSN
  • 2162-4011 (ISSN-L)
  • 2162-402X
OpenAlex
W2904634758
Cited by
142
References
49
Citations by year
2026: 10 · 2025: 16 · 2024: 25 · 2023: 32 · 2022: 22 · 2021: 24 · 2020: 11 · 2019: 2
FWCI
3.97
Type
journal article
Language
en
Open access
Locations
  • OncoImmunology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Mary Kay Foundation (67-16)
  • National Institutes of Health (CA185747, CA164492, CA205101)
  • National Science Foundation (CBET-1642287)
  • U.S. Department of Defense (W81XWH-13-1-0194)
  • University of Wisconsin Carbone Cancer Center (AAB7173)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
natural killer cells, cytotoxicity, solid tumors, microfluidic model, breast cancer spheroids, 3D extracellular matrix, tumor microenvironment, cancer immunotherapy

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