Journal
ADVANCED DRUG DELIVERY REVIEWS
Volume 84, Issue -, Pages 123-134Publisher
ELSEVIER
DOI: 10.1016/j.addr.2014.06.006
Keywords
Cartilage tissue engineering; Controlled release; Growth factors; Osteochondral repair; Spatiotemporal strategies; Drug delivery
Categories
Funding
- National Institutes of Health [R01 AR048756, R01 AR057083]
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The delivery of biologics is an important component in the treatment of osteoarthritis and the functional restoration of articular cartilage. Numerous factors have been implicated in the cartilage repair process, but the uncontrolled delivery of these factors may not only reduce their full reparative potential but can also cause unwanted morphological effects. It is therefore imperative to consider the type of biologic to be delivered, the method of delivery, and the temporal as well as spatial presentation of the biologic to achieve the desired effect in cartilage repair. Additionally, the delivery of a single factor may not be sufficient in guiding flea-tissue formation, motivating recent research toward the delivery of multiple factors. This review will discuss the roles of various biologics involved in cartilage repair and the different methods of delivery for appropriate healing responses. A number of spatiotemporal strategies will then be emphasized for the controlled delivery of single and multiple bioactive factors in both in vitro and in vivo cartilage tissue engineering applications. (C) 2014 Elsevier B.V. All rights reserved.
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