Cited by 71Osteoarthritis Treatment and MechanismsTissue Engineering and Regenerative MedicineHydrogels: synthesis, properties, applications

De novo neo-hyaline-cartilage from bovine organoids in viscoelastic hydrogels

Open access
Crispim, João F., Ito, Keita·2021·Acta Biomaterialia

Abstract

Regenerative therapies for articular cartilage are currently clinically available. However, they are associated with several drawbacks that require resolution. Optimizing chondrocyte expansion and their assembly, can reduce the time and costs of these therapies and more importantly increase their clinical success. In this study, cartilage organoids were quickly mass produced from bovine chondrocytes with a new suspension expansion protocol. This new approach led to massive cell proliferation, high viability and the self-assembly of organoids. These organoids were composed of collagen type II, type VI, glycosaminoglycans, with Sox9 positive cells, embedded in a pericellular and interterritorial matrix similarly to hyaline cartilage. With the goal of producing large scale tissues, we then encapsulated these organoids into alginate hydrogels with different viscoelastic properties. Elastic hydrogels constrained the growth and fusion of the organoids inhibiting the formation of a tissue. In contrast, viscoelastic hydrogels allowed the growth and fusion of the organoids into a homogenous tissue that was rich in collagen type II and glycosaminoglycans. The encapsulation of organoids to produce in vitro neocartilage also proved to be superior to the conventional method of encapsulating 2D expanded chondrocytes. This study describes a multimodal approach that involves chondrocyte expansion, organoid formation and their assembly into neohyaline-cartilage which proved to be superior to the current standard approaches used in cartilage tissue engineering. STATEMENT OF SIGNIFICANCE: In this manuscript, we describe a new and simple methodology to quickly mass produce self-assembling cartilage organoids. Due to their matrix content and structure similarities with native cartilage, these organoids on their own have the potential to revolutionize cartilage research and the manner in which we study signaling pathways, disease progression, tissue engineering, drug development, etc. Furthermore, these organoids and their fast mass production were combined with a key relatively ignored hydrogel characteristic, viscoelasticity, to demonstrate their fusion into a neo-tissue. This has the potential to open the door for large scale cartilage regeneration such as for entire joint surfaces.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.actbio.2021.04.008

Cites

78 of 78 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The viscoelastic properties of a material affect matrix remodeling, cell spreading, migration, differentiation, and consequently, organoid fate.

    “The viscoelastic properties of a material affect matrix remodeling, cell spreading, migration, differentiation, and consequently, organoid fate139–141.”

    From Towards organoid culture without Matrigel (2021) · cites this paper as [141]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. J.M. Melero-Martin, M. Al-Rubeai, In Vitro Expansion of Chondrocytes, in: N. Ashammakhi, R.L. Reis, E. Chielline (Eds.), Top. Tissue Eng. Vol. 3, 2007: pp. 1-37.

Cited by

Sorted by citations

Authors
Crispim, J. F., & Ito, K.
Affiliations
Eindhoven University of Technology (NL)
Corresponding author
  • Crispim, João F.
  • Ito, Keita
Venue
Acta Biomaterialia
Publisher
Elsevier BV
Published
2021-07
Volume
128
Pages
236-249
ISSN
1742-7061 (ISSN-L)
OpenAlex
W3155900515
Cited by
71
References
78
Citations by year
2026: 10 · 2025: 18 · 2024: 20 · 2023: 12 · 2022: 8 · 2021: 3
FWCI
8.13
Type
journal article
Language
en
Open access
Locations
  • Acta Biomaterialia (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • TU/e Research Portal (submittedVersion, cc-by)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
Keywords
cartilage organoids, hyaline cartilage regeneration, chondrocyte expansion, viscoelastic hydrogels, alginate hydrogel, organoid fusion, self-assembly, type II collagen, glycosaminoglycans, SOX9, bovine chondrocytes, cartilage tissue engineering
MeSH terms
Animals, Cartilage, Articular, Cattle, Hyalin, Organoids, Chondrocytes, Hydrogels, Tissue Engineering, Hyaline Cartilage

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review