Effect of BMP-2 adherent to resorbable sutures on cartilage repair: A rat model of xyphoid process

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Authors
Drummond, Nathan
Bruner, Bradley W.
Heggeness, Michael H.
Dart, Bradley
Yang, Shang-You
Advisors
Issue Date
2020-08-26
Type
Article
Keywords
Animal model , BMP-2 , Meniscal repair , Resorbable suture , Xyphoid process
Research Projects
Organizational Units
Journal Issue
Citation
Drummond, N.; W. Bruner, B.; Heggeness, M.H.; Dart, B.; Yang, S.-Y. Effect of BMP-2 Adherent to Resorbable Sutures on Cartilage Repair: A Rat Model of Xyphoid Process. Materials 2020, 13, 3764
Abstract

Meniscal tears are often seen in orthopedic practice. The current strategy for meniscal repair has only had limited success with a relatively high incidence of re-operative rate. This study evaluates the therapeutic effects of Bone morphogenetic protein-2 (BMP-2) soaked sutures for cartilage repair, using a rat model of xyphoid healing. Vicryl-resorbable sutures were presoaked in BMP-2 solutions prior to animal experimentation. Rat xyphoid process (an avascular hyaline cartilage structure) was surgically ruptured followed by repair procedures with regular suture or with sutures that were pre-soaked in BMP-2 solutions. In vitro assessment indicated that presoaking the Vicryl-resorbable sutures with 10 μg/mL BMP-2 resulted in a sustained amount of the growth factor release up to 7 days. Histological analysis suggested that application of this BMP-2 soaked suture on the rat xyphoid process model significantly improved the avascular cartilage healing compared to non-soaked control sutures. In conclusion, data here confirm that the rat xyphoid process repair is a reproducible and inexpensive animal model for meniscus and other cartilage repair. More importantly, coating of BMP-2 on sutures appears a potential avenue to improve cartilage repair and regeneration. Further study is warranted to explore the molecular mechanisms of this strategy.

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Description
© Authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Publisher
MDPI AG
Journal
Book Title
Series
Materials;v.13:no.17:art.no.3764
PubMed ID
DOI
ISSN
1996-1944
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