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Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage
In articular cartilage-repair, grafts usually fuse unsatisfactorily with surrounding host cartilage. Enzymatic dissociation of cartilaginous matrix to free chondrocytes may benefit fusion. We tested such a hypothesis with human cartilage in vitro, and with porcine cartilage in vivo. Human articular...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Japanese Society for Regenerative Medicine
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770344/ https://www.ncbi.nlm.nih.gov/pubmed/33426207 http://dx.doi.org/10.1016/j.reth.2020.05.006 |
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author | Jiang, Ching-Chuan Hsieh, Chang-Hsun Liao, Chun-Jen Chang, Wen-Hsiang Liao, Wei-Ju Tsai-Wu, Jyy-Jih Chiang, Hongsen |
author_facet | Jiang, Ching-Chuan Hsieh, Chang-Hsun Liao, Chun-Jen Chang, Wen-Hsiang Liao, Wei-Ju Tsai-Wu, Jyy-Jih Chiang, Hongsen |
author_sort | Jiang, Ching-Chuan |
collection | PubMed |
description | In articular cartilage-repair, grafts usually fuse unsatisfactorily with surrounding host cartilage. Enzymatic dissociation of cartilaginous matrix to free chondrocytes may benefit fusion. We tested such a hypothesis with human cartilage in vitro, and with porcine cartilage in vivo. Human articular cartilage was collected from knee surgeries, cut into disc-and-ring sets, and randomly distributed into three groups: disc-and-ring sets in Group 1 were left untreated; in Group 2 only discs, and in Group 3 both discs and rings were treated with enzyme. Each disc-and-ring reassembly was cultured in a perfusion system for 14 days; expression of cartilage marker proteins and genes was evaluated by immunohistochemistry and PCR. Porcine articular cartilage from knees was similarly fashioned into disc-and-ring combinations. Specimens were randomly distributed into a control group without further treatment, and an experimental group with both disc and ring treated with enzyme. Each disc-and-ring reassembly was transplanted into subcutaneous space of a nude mouse for 30 days, and retrieved to examine disc-ring interface. In in vitro study with human cartilage, a visible gap remained at disc-ring interfaces in Group 1, yet became indiscernible in Group 2 and 3. Marker genes, including type II collagen, aggrecan and Sox 9, were well expressed by chondrocytes in all specimens, indicating that chondrocytes’ phenotype retained regardless of enzymatic treatment. Similar results were found inin vivo study with porcine cartilage. Enzymatic dissociation of cartilaginous matrix promotes fusion of adjacent cartilage. The clinical relevance may be a novel method to facilitate integration of repaired cartilage in joints. |
format | Online Article Text |
id | pubmed-7770344 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Japanese Society for Regenerative Medicine |
record_format | MEDLINE/PubMed |
spelling | pubmed-77703442021-01-08 Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage Jiang, Ching-Chuan Hsieh, Chang-Hsun Liao, Chun-Jen Chang, Wen-Hsiang Liao, Wei-Ju Tsai-Wu, Jyy-Jih Chiang, Hongsen Regen Ther Original Article In articular cartilage-repair, grafts usually fuse unsatisfactorily with surrounding host cartilage. Enzymatic dissociation of cartilaginous matrix to free chondrocytes may benefit fusion. We tested such a hypothesis with human cartilage in vitro, and with porcine cartilage in vivo. Human articular cartilage was collected from knee surgeries, cut into disc-and-ring sets, and randomly distributed into three groups: disc-and-ring sets in Group 1 were left untreated; in Group 2 only discs, and in Group 3 both discs and rings were treated with enzyme. Each disc-and-ring reassembly was cultured in a perfusion system for 14 days; expression of cartilage marker proteins and genes was evaluated by immunohistochemistry and PCR. Porcine articular cartilage from knees was similarly fashioned into disc-and-ring combinations. Specimens were randomly distributed into a control group without further treatment, and an experimental group with both disc and ring treated with enzyme. Each disc-and-ring reassembly was transplanted into subcutaneous space of a nude mouse for 30 days, and retrieved to examine disc-ring interface. In in vitro study with human cartilage, a visible gap remained at disc-ring interfaces in Group 1, yet became indiscernible in Group 2 and 3. Marker genes, including type II collagen, aggrecan and Sox 9, were well expressed by chondrocytes in all specimens, indicating that chondrocytes’ phenotype retained regardless of enzymatic treatment. Similar results were found inin vivo study with porcine cartilage. Enzymatic dissociation of cartilaginous matrix promotes fusion of adjacent cartilage. The clinical relevance may be a novel method to facilitate integration of repaired cartilage in joints. Japanese Society for Regenerative Medicine 2020-07-28 /pmc/articles/PMC7770344/ /pubmed/33426207 http://dx.doi.org/10.1016/j.reth.2020.05.006 Text en © 2020 The Japanese Society for Regenerative Medicine. Production and hosting by Elsevier B.V. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Article Jiang, Ching-Chuan Hsieh, Chang-Hsun Liao, Chun-Jen Chang, Wen-Hsiang Liao, Wei-Ju Tsai-Wu, Jyy-Jih Chiang, Hongsen Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
title | Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
title_full | Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
title_fullStr | Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
title_full_unstemmed | Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
title_short | Collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
title_sort | collagenase treatment of cartilaginous matrix promotes fusion of adjacent cartilage |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770344/ https://www.ncbi.nlm.nih.gov/pubmed/33426207 http://dx.doi.org/10.1016/j.reth.2020.05.006 |
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