4.6 Article

Biomimicking design of artificial periosteum for promoting bone healing

Journal

JOURNAL OF ORTHOPAEDIC TRANSLATION
Volume 36, Issue -, Pages 18-32

Publisher

ELSEVIER
DOI: 10.1016/j.jot.2022.05.013

Keywords

Artificial periosteum; Biomimicking design; Biochemical biomimicry; Biophysical biomimicry; Bone regeneration

Categories

Funding

  1. National Natural Science Foundation of China [82122002]
  2. Guangdong Basic and Applied Basic Research Foundation. [2020B151530002]

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This article provides a systematic overview of the development of biomimicking design of artificial periosteum, including the universal strategies, novel versatile biomimicking artificial periosteum, and potential implications and prospects. Future research should consider the integration of innervation, osteochondral regeneration, and osteoimmunomodulation.
Background: Periosteum is a vascularized tissue membrane covering the bone surface and plays a decisive role in bone reconstruction process after fracture. Various artificial periosteum has been developed to assist the allografts or bionic bone scaffolds in accelerating bone healing. Recently, the biomimicking design of artificial periosteum has attracted increasing attention due to the recapitulation of the natural extracellular microenvironment of the periosteum and has presented unique capacity to modulate the cell fates and ultimately enhance the bone for-mation and improve neovascularization. Methods: A systematic literature search is performed and relevant findings in biomimicking design of artificial periosteum have been reviewed and cited. Results: We give a systematical overview of current development of biomimicking design of artificial periosteum. We first summarize the universal strategies for designing biomimicking artificial periosteum including biochemical biomimicry and biophysical biomimicry aspects. We then discuss three types of novel versatile biomimicking artificial periosteum including physical-chemical combined artificial periosteum, heterogeneous structured biomimicking periosteum, and healing phase-targeting biomimicking periosteum. Finally, we comment on the potential implications and prospects in the future design of biomimicking artificial periosteum. Conclusion: This review summarizes the preparation strategies of biomimicking artificial periosteum in recent years with a discussion of material selection, animal model adoption, biophysical and biochemical cues to regulate the cell fates as well as three types of latest developed versatile biomimicking artificial periosteum. In future, integration of innervation, osteochondral regeneration, and osteoimmunomodulation, should be taken into consideration when fabricating multifunctional artificial periosteum.

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