Cited by 168Hydrogels: synthesis, properties, applicationsTissue Engineering and Regenerative Medicine3D Printing in Biomedical Research

PEG-4MAL hydrogels for human organoid generation, culture, and in vivo delivery

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Cruz-Acuña, Ricardo, Quirós, Miguel, Huang, Sha, Siuda, Dorothée, Spence, Jason R., Nusrat, Asma, García, Andrés J.·2018·Nature Protocols

Abstract

In vitro differentiation of human pluripotent stem cell (hPSC)-derived organoids (HOs) facilitates the production of multicellular three-dimensional structures analogous to native human tissues. Most current methods for the generation of HOs rely on Matrigel, a poorly defined basement membrane derivative secreted by Engelbreth-Holm-Swarm mouse sarcoma cells, limiting the potential use of HOs for regenerative medicine applications. Here, we describe a protocol for the synthesis of a fully defined, synthetic hydrogel that supports the generation and culture of HOs. Modular, cell-encapsulating hydrogels are formed from a four-armed poly(ethylene glycol) macromer that has maleimide groups at each terminus (PEG-4MAL) and is conjugated to cysteine-containing adhesive peptides and cross-linked via protease-degradable peptides. The protocol also includes guidelines for the localized in vivo delivery of PEG-4MAL hydrogel-encapsulated HOs to injured mouse colon. The PEG-4MAL hydrogel supports the engraftment of the HOs and accelerates colonic wound repair. This culture and delivery strategy can thus be used to develop HO-based therapies to treat injury and disease. Hydrogel and tissue preparation and subsequent encapsulation can be performed within 2.5-3.5 h. Once HOs have been cultured in synthetic hydrogels for at least 14 d, they can be prepared and delivered to the mouse colon in under 5 h.

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  • When PEG was crosslinked with dithiothreitol to inhibit matrix degradation, organoid viability at seven days was poor as measured by live-dead staining.

    “Intriguingly, when PEG was crosslinked with dithiothreitol to inhibit matrix degradation, organoid viability at seven days was poor as measured by live-dead staining.”

    From Towards organoid culture without Matrigel (2021) · cites this paper as [164]

  • Organoid viability was reduced at high PEG density and matrix stiffness.

    “Organoid viability was reduced at high PEG density and matrix stiffness;”

    From Towards organoid culture without Matrigel (2021) · cites this paper as [164]

  • RGD- or AG73-functionalized PEG matrices promoted greater organoid viability than laminin-derived IKVAV- or type I collagen-derived GFOGER peptides.

    “RGD- or AG73 (CGGRKRLQVQLSIRT)-functionalized PEG matrices promoted greater organoid viability than laminin-derived IKVAV- or type I collagen-derived GFOGER peptides163,164.”

    From Towards organoid culture without Matrigel (2021) · cites this paper as [164]

  • PEG-based materials may need to be soft and degradable in order to support differentiated intestinal organoids.

    “Cruz-Acuna and colleagues also found that PEG-based materials may need to be soft and degradable in order to support differentiated intestinal organoids.”

    From Towards organoid culture without Matrigel (2021) · cites this paper as [164]

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Research works printed but not linked: 1

  1. [29]Noble JE & Bailey MJA in Methods in Enzymology, Vol. 463 (eds. Burgess Richard R. & Deutscher Murray P.) 73– 95 (Academic Press, Cambridge, MA, 2009).19892168

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Authors
Cruz-Acuña, R., Quirós, M., Huang, S., Siuda, D., Spence, J. R., Nusrat, A., & García, A. J.
Affiliations
University of Michigan (US)
Corresponding author
  • Spence, Jason R.
  • Nusrat, Asma
Venue
Nature Protocols
Published
2018-09
Volume
13
Issue
9
Pages
2102-2119
ISSN
  • 1750-2799 (ISSN-L)
  • 1754-2189
OpenAlex
W2892378739
Cited by
168
References
30
Citations by year
2026: 16 · 2025: 26 · 2024: 16 · 2023: 24 · 2022: 26 · 2021: 30 · 2020: 16 · 2019: 14
FWCI
5.67
Type
journal article
Language
en
Open access
Locations
  • Nature Protocols (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000454)
  • National Heart, Lung, and Blood Institute (R01HL119215)
  • National Institute of Allergy and Infectious Diseases (U19AI116482)
  • National Institute of Diabetes and Digestive and Kidney Diseases (U24DK085532, P30DK034933, R01DK055679, R56DK089763, R29DK055679, R01DK059888, U01DK085532, U01DK103141, R01DK089763)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (R01AR062368, R01AR062920)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
Keywords
human organoids, pluripotent stem cell differentiation, synthetic hydrogels, hydrogel encapsulation, in vivo delivery, tissue regeneration
MeSH terms
Animals, Colon, Humans, Organoids, Organ Transplantation, Hydrogels, Models, Animal, Pluripotent Stem Cells, Tissue Culture Techniques, Mice

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