Journal
JOURNAL OF CONTROLLED RELEASE
Volume 219, Issue -, Pages 129-140Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jconrel.2015.08.004
Keywords
Growth factors; Bone regeneration; Controlled release; Biomaterials; Tissue engineering
Funding
- National Institutes of Health CATER [T32EB001026]
- RiMED Foundation
- Dreyfus Foundation
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Bone regeneration is a complex process, that in vivo, requires the highly coordinated presentation of biochemical cues to promote the various stages of angiogenesis and osteogenesis. Taking inspiration from the natural healing process, a wide variety of growth factors are currently being released within next generation tissue engineered scaffolds (in a variety of ways) in order to heal non-union fractures and bone defects. This review will focus on the delivery of multiple growth factors to the bone regeneration niche, specifically 1) dual growth factor delivery signaling and crosstalk, 2) the importance of growth factor timing and temporal separation, and 3) the engineering of delivery systems that allow for temporal control over presentation of soluble growth factors. Alternative methods for growth factor presentation, including the use of gene therapy and platelet-rich plasma scaffolds, are also discussed. (C) 2015 Elsevier B.V. All rights reserved.
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