Abstract
The biofabrication of complex human tissues to recapitulate organ-specific architecture and function requires a combination of engineering control and intrinsic self-assembly. Organoid bioprinting encompasses additive manufacturing approaches that can impart spatial control over the placement of organoids or organoid-forming cells to fabricate multicellular, 3D structures. In particular, bioprinting can be leveraged to control the spatial positioning of printed cells or tissues while maintaining the architecture and physiology of the constituent building blocks. In this Review, we discuss the emerging integration of bioprinting methods and tissue engineering. As bioprinting conventionally involves the patterning of a ‘material’ ink, we characterize cells and organoids as a living material and discuss how such a living material can be manipulated through biofabrication techniques. We focus on continuous and pick-and-place bioprinting methods in which spheroids, organoids or organoid-forming cells comprise the bioink. Additionally, we discuss organoid support baths into which inks are printed. Finally, we highlight how the combination of bioprinting approaches and organoid technology has the potential to improve engineered tissue models of development and disease.
Key points
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Organoids are in vitro model systems designed to recapitulate in vivo human, tissue-specific phenotypes.
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Organoid-forming cells, organoids, organoid suspensions and fused organoids can all be considered ‘living materials’, which indicates that they can be directly used in material-based biofabrication approaches.
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Organoid bioprinting refers to additive manufacturing approaches that impart spatial control over the 3D arrangement of organoids or organoid-forming cells to increase the relevance, reproducibility and complexity of engineered tissues.
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Organoid bioprinting holds potential for modelling human development and disease, standardizing drug discovery and development and biomanufacturing of human tissues for clinical use.
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Acknowledgements
The authors thank S. Pasca for helpful conversations about organoid biology and editing of the manuscript. This work was funded in part by a Stanford Cancer Institute Innovation Seed Grant, a Stanford Maternal and Child Health Research Institute Uytengsu-Hamilton 22q11 Neuropsychiatry Seed Grant, the National Institutes of Health (NIH) (R01 HL142718, R01 DK129309 and R01 EB027171), the Advanced Research Projects Agency for Health (ARPA-H) under award number AY1AX000002 and the National Science Foundation (NSF) (DMR 2103812, CBET 2033302). M.S.H. was supported by a NIH F31 Pre-doctoral Fellowship (NS132505) and a Sarafan ChEM-H O’Leary-Thiry Fellowship. F.C. was supported by a Swiss National Science Foundation Postdoc Mobility Fellowship (PN210723).
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M.S.H., F.C. and S.C.H. conceptualized the review. M.S.H., F.C. and J.G.R. researched data for the article and contributed to discussion of content and writing. All authors reviewed and edited the manuscript before submission.
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S.C.H. and J.G.R. are listed as inventors on a patent application (US 2023-0357685 A1) that covers some of the technologies described in this manuscript. The other authors declare no competing interests.
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Huang, M.S., Christakopoulos, F., Roth, J.G. et al. Organoid bioprinting: from cells to functional tissues. Nat Rev Bioeng 3, 126–142 (2025). https://doi.org/10.1038/s44222-024-00268-0
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DOI: https://doi.org/10.1038/s44222-024-00268-0
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