In:
Frontiers in Bioengineering and Biotechnology, Frontiers Media SA, Vol. 10 ( 2022-4-14)
Abstract:
Cell–hydrogel constructs are frequently used as injectable platforms for irregular cartilage regeneration. However, cell–hydrogel constructs have obvious disadvantages, such as long culture times, high probability of infection, and poor cartilage formation capacity, significantly limiting their clinical translation. In this study, we aimed to develop a novel injectable platform comprising engineered cartilage gel (ECG) and gelatin methacrylate (GelMA) to improve cartilage regeneration. We first prepared an ECG by cutting the in vitro engineered cartilage sheet into pieces. The chondrocytes and ECG were evenly encapsulated into GelMA to form Cell-GelMA and ECG-GelMA constructs. The ECG-GelMA construct exhibited preferred gel characteristics and superior biocompatibility compared with the Cell-GelMA construct counterpart. After subcutaneous implantation in nude mice and goat, both gross views and histological evaluations showed that the ECG-GelMA construct achieved more homogenous, stable, and mature cartilage regeneration than the Cell-GelMA construct. Immunological evaluations showed that ECG-GelMA had a mitigatory immunologic reaction than the Cell-GelMA construct. Overall, the results suggest that the ECG-GelMA is a promising injectable platform for cartilage regeneration that may advance clinical translation.
Type of Medium:
Online Resource
ISSN:
2296-4185
DOI:
10.3389/fbioe.2022.884036
DOI:
10.3389/fbioe.2022.884036.s001
DOI:
10.3389/fbioe.2022.884036.s002
DOI:
10.3389/fbioe.2022.884036.s003
DOI:
10.3389/fbioe.2022.884036.s004
DOI:
10.3389/fbioe.2022.884036.s005
DOI:
10.3389/fbioe.2022.884036.s006
DOI:
10.3389/fbioe.2022.884036.s007
DOI:
10.3389/fbioe.2022.884036.s008
DOI:
10.3389/fbioe.2022.884036.s009
DOI:
10.3389/fbioe.2022.884036.s010
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2022
detail.hit.zdb_id:
2719493-0
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