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Published in: International Orthopaedics 2/2021

01-02-2021 | Knee Osteoarthritis | Original Paper

Effects of umbilical cord mesenchymal stem cells loaded with graphene oxide granular lubrication on cytokine levels in animal models of knee osteoarthritis

Authors: Xiao-dong Wang, Xiao-chun Wan, Ai-feng Liu, Rong Li, Qiang Wei

Published in: International Orthopaedics | Issue 2/2021

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Abstract

Background

The aim of this study was to use umbilical cord mesenchymal stem cells (UCMSCs) loaded with graphene oxide (GO) granular lubricant to treat knee osteoarthritis (KOA) animal models and to analyze their effect on cytokine levels in the articular cavity.

Methods

Twenty-four New Zealand rabbit models of KOA were established by the modified Hulth and cartilage injury method, and they were assigned to the blank group, the GO group, the UCMSC group, and the GO + UCMSC group, each group containing six animal models. The GO and UCMSC groups were treated by a single intra-articular injection. The treatment was started one month after surgical modeling, and the observation period was eight weeks. The expression levels of nitric oxide (NO), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α), glycosaminoglycan (GAG), and collagen-II (COL-II) in serum and articular fluid after treatment were compared to analyze the efficacy.

Results

The GO granular lubricant caused no significant improvement in the intra-articular environment of the knee joint, and UCMSCs caused a certain degree of improvement in the inflammatory environment. The improvement results of NO, IL-6, TNF-α, GAG, and COL-II were the best in the GO + UCMSC group, but the improvement results of inflammatory cytokine levels in serum and articular fluid were not consistent, especially the differences in NO, IL-6, and TNF-α were greater.

Conclusion

UCMSCs loaded with the GO granular lubricant can reduce the inflammatory level and improve the level of biochemical environment in the articular cavity, and thus promote cartilage repair.
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Metadata
Title
Effects of umbilical cord mesenchymal stem cells loaded with graphene oxide granular lubrication on cytokine levels in animal models of knee osteoarthritis
Authors
Xiao-dong Wang
Xiao-chun Wan
Ai-feng Liu
Rong Li
Qiang Wei
Publication date
01-02-2021
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 2/2021
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-020-04584-z

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