Journal
CANCERS
Volume 13, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/cancers13040874
Keywords
organoids; spheroids; air– liquid interface; personalized medicine; drug screening; tumor modeling; organoid biobanks; immunotherapy; microfluidics; organoids-on-chip
Categories
Funding
- Intramural Research Program of the United States NIH, NIDCD
- NIH
- Doris Duke Charitable Foundation (DDCF) [2014194]
- American Association for Dental Research
- Colgate-Palmolive Company
- Genentech
- Elsevier
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3D cell culture models like organoids and spheroids have unique advantages and applications, with organoids resembling the original tissue and being suitable for personalized medicine. Organoid-on-chip models combine organoid methods with micro-chip technology to simulate dynamic microenvironments.
Simple Summary Cell cultures can be carried out in three dimensions (3D). Organoids and spheroids are different 3D cell culture models that can be cultured with different techniques. These 3D cell culture units established from a patient tumor have several similarities to the original tumor tissue and possess several advantages in conducting basic and clinical cancer research. Organoids prepared from a patient tissue can be preserved in a living biobank. Testing chemo-, radio- and immuno-therapies on these organoids has the potential to predict the patient responses and these models have incredible promise for personalized medicine. This review presents different organoid models, the techniques to prepare them and recent advances in their applications. Techniques to develop three-dimensional cell culture models are rapidly expanding to bridge the gap between conventional cell culture and animal models. Organoid and spheroid cultures have distinct and overlapping purposes and differ in cellular sources and protocol for establishment. Spheroids are of lower complexity structurally but are simple and popular models for drug screening. Organoids histologically and genetically resemble the original tumor from which they were derived. Ease of generation, ability for long-term culture and cryopreservation make organoids suitable for a wide range of applications. Organoids-on-chip models combine organoid methods with powerful designing and fabrication of micro-chip technology. Organoid-chip models can emulate the dynamic microenvironment of tumor pathophysiology as well as tissue-tissue interactions. In this review, we outline different tumor spheroid and organoid models and techniques to establish them. We also discuss the recent advances and applications of tumor organoids with an emphasis on tumor modeling, drug screening, personalized medicine and immunotherapy.
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