期刊
BIOMATERIALS
卷 53, 期 -, 页码 502-521出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biomaterials.2015.02.110
关键词
Progenitor cells; Hydrogels; Patterned scaffolds; In situ regeneration; Vascularization; Innervation
资金
- Einstein Foundation Berlin through the Charite-Universitatsmedizin Berlin
- Berlin-Brandenburg School for Regenerative Therapies [GSC 203]
- Friede Springer Stiftung
- Federal Ministry of Education and Research through the BCRT
- German Research Foundation (DFG) [FOR2165, GE2512/2-1]
Skeletal muscles have a robust capacity to regenerate, but under compromised conditions, such as severe trauma, the loss of muscle functionality is inevitable. Research carried out in the field of skeletal muscle tissue engineering has elucidated multiple intrinsic mechanisms of skeletal muscle repair, and has thus sought to identify various types of cells and bioactive factors which play an important role during regeneration. In order to maximize the potential therapeutic effects of cells and growth factors, several biomaterial based strategies have been developed and successfully implemented in animal muscle injury models. A suitable biomaterial can be utilized as a template to guide tissue reorganization, as a matrix that provides optimum micro-environmental conditions to cells, as a delivery vehicle to carry bioactive factors which can be released in a controlled manner, and as local niches to orchestrate in situ tissue regeneration. A myriad of biomaterials, varying in geometrical structure, physical form, chemical properties, and biofunctionality have been investigated for skeletal muscle tissue engineering applications. In the current review, we present a detailed summary of studies where the use of biomaterials favorably influenced muscle repair. Biomaterials in the form of porous three-dimensional scaffolds, hydrogels, fibrous meshes, and patterned substrates with defined topographies, have each displayed unique benefits, and are discussed herein. Additionally, several biomaterial based approaches aimed specifically at stimulating vascularization, innervation, and inducing contractility in regenerating muscle tissues are also discussed. Finally, we outline promising future trends in the field of muscle regeneration involving a deeper understanding of the endogenous healing cascades and utilization of this knowledge for the development of multifunctional, hybrid, biomaterials which support and enable muscle regeneration under compromised conditions. (C) 2015 Elsevier Ltd. All rights reserved.
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