Cited by 653D Printing in Biomedical ResearchHydrogels: synthesis, properties, applicationsCellular Mechanics and Interactions

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink

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Skardal, Aleksander, Devarasetty, Mahesh, Kang, Hyun-Wook, Seol, Young-Joon, Forsythe, Steven D., Bishop, Colin, Shupe, Thomas, Soker, Shay +1 more·2016·Journal of Visualized Experiments

Abstract

Bioprinting has emerged as a versatile biofabrication approach for creating tissue engineered organ constructs. These constructs have potential use as organ replacements for implantation in patients, and also, when created on a smaller size scale as model "organoids" that can be used in in vitro systems for drug and toxicology screening. Despite development of a wide variety of bioprinting devices, application of bioprinting technology can be limited by the availability of materials that both expedite bioprinting procedures and support cell viability and function by providing tissue-specific cues. Here we describe a versatile hyaluronic acid (HA) and gelatin-based hydrogel system comprised of a multi-crosslinker, 2-stage crosslinking protocol, which can provide tissue specific biochemical signals and mimic the mechanical properties of in vivo tissues. Biochemical factors are provided by incorporating tissue-derived extracellular matrix materials, which include potent growth factors. Tissue mechanical properties are controlled combinations of PEG-based crosslinkers with varying molecular weights, geometries (linear or multi-arm), and functional groups to yield extrudable bioinks and final construct shear stiffness values over a wide range (100 Pa to 20 kPa). Using these parameters, hydrogel bioinks were used to bioprint primary liver spheroids in a liver-specific bioink to create in vitro liver constructs with high cell viability and measurable functional albumin and urea output. This methodology provides a general framework that can be adapted for future customization of hydrogels for biofabrication of a wide range of tissue construct types.

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Crossref · 10.3791/53606

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  • Manipulating synthetic hydrogels using methods such as electrospinning, photopatterning, spraying of microspheres, inkjet and 3D printing, or microfluidic channels enables control over the shape and size of the organoids.

    “Manipulating synthetic hydrogels using methods such as electrospinning125, photopatterning126,127, spraying of microspheres128, inkjet and 3D printing129, or microfluidic channels130 further enables control over the shape and size of the organoids.”

    From Towards organoid culture without Matrigel (2021) · cites this paper as [129]

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Authors
Skardal, A., Devarasetty, M., Kang, H.-W., Seol, Y.-J., Forsythe, S. D., Bishop, C., Shupe, T., Soker, S., & Atala, A.
Affiliations
Wake Forest University Health Sciences (US)
Venue
Journal of Visualized Experiments
Published
2016-04-21
Issue
110
Pages
e53606-e53606
ISSN
1940-087X (ISSN-L)
OpenAlex
W2341045140
Cited by
65
References
46
Citations by year
2025: 1 · 2024: 4 · 2023: 5 · 2022: 6 · 2021: 13 · 2020: 6 · 2019: 7 · 2018: 14 · 2017: 6 · 2016: 3
FWCI
4.81
Type
journal article
Language
en
Open access
Locations
  • Journal of Visualized Experiments (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Scholarworks@UNIST (Ulsan National Institute of Science and Technology) (submittedVersion)
Funders
  • Defense Threat Reduction Agency
  • National Institute of Biomedical Imaging and Bioengineering (T32EB014836)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
Keywords
bioprinting, hydrogel bioinks, hyaluronic acid, gelatin, extracellular matrix, liver spheroids, organoids, shear stiffness, cell viability, tissue engineering
MeSH terms
Cell Survival, Extracellular Matrix, Gelatin, Humans, Hyaluronic Acid, Polyethylene Glycols, Hydrogels, Hydrogel, Polyethylene Glycol Dimethacrylate, Tissue Engineering, Tissue Scaffolds, Bioprinting

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