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Updated: Sep 27, 2025
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Generation of Orthotopic Pancreatic Tumors and Ex vivo Characterization of Tumor-Infiltrating T Cell Cytotoxicity
Published on: December 7, 2019
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Programmable Living Units for Emulating Pancreatic Tumor-Stroma Interplay
Maria V Monteiro1, Marta Rocha1, Vítor M Gaspar1
1Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, Aveiro, 3810-193, Portugal.
Advanced Healthcare Materials
|April 15, 2022
Summary
Researchers developed "cancer-on-a-bead" models for pancreatic cancer, creating realistic tumor microenvironments. These advanced models show increased drug resistance, highlighting the importance of extracellular matrix in cancer research.
Area of Science:
- Bioengineering
- Biomedical Engineering
- Cancer Research
Background:
- Developing in vitro models that mimic tumor bioarchitecture and microenvironment is crucial for advancing disease modeling.
- Existing models often lack the complexity of native tumor structures and cellular interactions.
Purpose of the Study:
- To create user-programmable, biomimetic in vitro models of pancreatic cancer, termed cancer-on-a-bead models.
- To incorporate tunable integration of cancer-associated stromal elements and extracellular matrix (ECM) niches.
Main Methods:
- Rapid, in-air assembly of stratified cancer-on-a-bead units with reproducible morphology and tunable size.
- Compartmentalization of pancreatic cancer and stromal cells within defined ECM microenvironments.
- Analysis of biomolecular effector secretion and drug resistance compared to simpler models.
Main Results:
- Cancer-on-a-bead models exhibit multicompartmentalization and recapitulate spatially resolved tumor-stroma ECM niches.
- Stimulated secretion of key biomolecular effectors (e.g., TGF-β, IL-1β), mimicking human pancreatic tumors.
- Demonstrated increased drug resistance to chemotherapeutics compared to reductionistic models.
Conclusions:
- Cancer-on-a-bead models provide a universal technology for bioengineering tumor-stroma interactions with spatial modularity.
- Scalable, in-air fabrication of ECM-tunable 3D platforms can recapitulate differential matrix composition in various human neoplasias.
- These models underscore the significance of modeling ECM components and spatial stratification for accurate in vivo recapitulation.
