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Updated: Mar 19, 2026
Hydrogel Arrays Enable Increased Throughput for Screening Effects of Matrix Components and Therapeutics in 3D Tumor Models
Published on: June 16, 2022
Recreating complex pathophysiologies in vitro with extracellular matrix surrogates for anticancer therapeutics
Naledi Shologu1, Eva Szegezdi2, Aoife Lowery3
1Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI), Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland.
Three-dimensional (3D) tissue surrogates offer a more accurate in vitro cancer model than traditional 2D cultures. This review assesses their advances and limitations for drug development.
Area of Science:
- Oncology
- Biomedical Engineering
- Tissue Engineering
Background:
- In vitro tumour models are crucial for understanding cancer and developing new therapies.
- Conventional two-dimensional (2D) monolayer cultures have limitations in mimicking the complex in vivo tumour microenvironment.
- Three-dimensional (3D) tissue surrogates are emerging as advanced alternatives.
Purpose of the Study:
- To critically assess the current state of 3D in vitro cancer models.
- To evaluate the advantages and disadvantages of various 3D tissue surrogates.
- To identify future directions for improving 3D cancer modeling for drug development.
Main Methods:
- Review of current literature on 3D in vitro tumour models.
- Analysis of different types of 3D systems: decellularised tissue grafts, decellularised monolayers, hydrogels, electrospun fibres, and sponges.
- Assessment of their ability to recapitulate the in vivo tumour microenvironment.
Main Results:
- 3D models, including hydrogels and tissue scaffolds, provide a more physiologically relevant extracellular matrix environment compared to 2D cultures.
- These models show promise in enhancing the accuracy of drug screening and development.
- Challenges remain in standardization, scalability, and fully replicating in vivo complexity.
Conclusions:
- 3D tissue surrogates represent a significant advancement in in vitro cancer modeling.
- Further research is needed to overcome current limitations and optimize these models for preclinical drug evaluation.
- These advanced models hold potential for more effective cancer drug discovery and personalized medicine.
