期刊
ADVANCED MATERIALS
卷 21, 期 32-33, 页码 3269-3285出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200900241
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资金
- National institutes of Health [R37 DE0133033, R01 DE013349]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0854288] Funding Source: National Science Foundation
Growth factors play a crucial role in information transfer between cells and their microenvironment in tissue engineering and regeneration. They initiate their action by binding to specific receptors on the surface of target cells and the chemical identity, concentration, duration, and context of these growth factors contain information that dictates cell fate. Hence, the importance of exogenous delivery of these molecules in tissue engineering is unsurprising, considering their importance for tissue regeneration. However, the short half-lives of growth factors, their relatively large size, slow tissue penetration, and their potential toxicity at high systemic levels, suggest that conventional routes of administration are unlikely to be effective. In this review, we provide an overview of the design criteria for growth factor delivery vehicles with respect to the growth factor itself and the microenvironment for delivery. We discuss various methodologies that could be adopted to achieve this localized delivery, and strategies using polymers as delivery vehicles in particular.
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