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Biomimetic injectable hydrogel microspheres with enhanced lubrication and controllable drug release for the treatment of osteoarthritis

Open access
Han, Ying, Yang, Jielai, Zhao, Weiwei, Wang, Haimang, Sun, Yulong, Chen, Yuji, Luo, Jing, Deng, Lianfu, Xu, Xiangyang, Cui, Wenguo, Zhang, Hongyu·2021·Bioactive Materials

Abstract

The occurrence of osteoarthritis (OA) is highly associated with the reduced lubrication property of the joint, where a progressive and irreversible damage of the articular cartilage and consecutive inflammatory response dominate the mechanism. In this study, bioinspired by the super-lubrication property of cartilage and catecholamine chemistry of mussel, we successfully developed injectable hydrogel microspheres with enhanced lubrication and controllable drug release for OA treatment. Particularly, the lubricating microspheres (GelMA@DMA-MPC) were fabricated by dip coating a self-adhesive polymer (DMA-MPC, synthesized by free radical copolymerization) on superficial surface of photo-crosslinked methacrylate gelatin hydrogel microspheres (GelMA, prepared via microfluidic technology), and encapsulated with an anti-inflammatory drug of diclofenac sodium (DS) to achieve the dual-functional performance. The tribological test and drug release test showed the enhanced lubrication and sustained drug release of the GelMA@DMA-MPC microspheres. In addition, the functionalized microspheres were intra-articularly injected into the rat knee joint with an OA model, and the biological tests including qRT-PCR, immunofluorescence staining assay, X-ray radiography and histological staining assay all revealed that the biocompatible microspheres provided significant therapeutic effect against the development of OA. In summary, the injectable hydrogel microspheres developed herein greatly improved lubrication and achieved sustained local drug release, therefore representing a facile and promising technique for the treatment of OA.

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Research works printed but not linked: 6

  1. Zhang, 2011, The significance of the micropores at the stem–cement interface in total hip replacement, J. Biomater. Sci. Polym. Ed., 22, 845, 10.1163/092050610X540495 · doi:10.1163/092050610x540495
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Metadata

Authors
Han, Y., Yang, J., Zhao, W., Wang, H., Sun, Y., Chen, Y., Luo, J., Deng, L., Xu, X., Cui, W., & Zhang, H.
Venue
Bioactive Materials
Publisher
Elsevier BV
Published
2021-10
Volume
6
Issue
10
Pages
3596-3607
ISSN
  • 2097-1192 (ISSN-L)
  • 2452-199X
OpenAlex
W3141007726
Cited by
308
References
36
FWCI
31.54
Type
journal article
Language
en
Open access
gold
Licence
Funders
  • National Natural Science Foundation of China (52022043, 81930051)
  • Science and Technology Commission of Shanghai Municipality (18140901500, 18ZR1434200, 19440760400)
  • Tsinghua University (10001020107)
  • Shanghai Jiao Tong University (ZH2018ZDA04)

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CoChat. (2026). Citation check: Biomimetic injectable hydrogel microspheres with enhanced lubrication and controllable drug release for the treatment of osteoarthritis. https://app.cochat.ai/papers/10.1016/j.bioactmat.2021.03.022
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Han, Y., Yang, J., Zhao, W., Wang, H., Sun, Y., Chen, Y., Luo, J., Deng, L., Xu, X., Cui, W., & Zhang, H. (2021). Biomimetic injectable hydrogel microspheres with enhanced lubrication and controllable drug release for the treatment of osteoarthritis. Bioactive Materials. https://doi.org/10.1016/j.bioactmat.2021.03.022

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