Biomimetic coatings for bone tissue engineering of critical-sized defects.
The repair of critical-sized bone defects is still challenging in the fields of implantology, maxillofacial surgery and orthopaedics. Current therapies such as autografts and allografts are associated with various limitations. Cytokine-based bone tissue engineering has been attracting increasing attention. Bone-inducing agents have been locally injected to stimulate the native bone-formation activity, but without much success. The reason is that these drugs must be delivered slowly and at a low concentration to be effective. This then mimics the natural method of cytokine release. For this purpose, a suitable vehicle was developed, the so-called biomimetic coating, which can be deposited on metal implants as well as on biomaterials. Materials that are currently used to fill bony defects cannot by themselves trigger bone formation. Therefore, biological functionalization of such materials by the biomimetic method resulted in a novel biomimetic coating onto different biomaterials. Bone morphogenetic protein 2 (BMP-2)-incorporated biomimetic coating can be a solution for a large bone defect repair in the fields of dental implantology, maxillofacial surgery and orthopaedics. Here, we review the performance of the biomimetic coating both in vitro and in vivo.
Liu
Yuelian
Y
Department of Oral Implantology and Prosthodontics, Academic Centre of Dentistry Amsterdam (ACTA), VU University and University of Amsterdam, Amsterdam, The Netherlands. y.liu@acta.nl
Wu
Gang
G
de Groot
Klaas
K
D000818:Animals; D001672:Biocompatible Materials / Q000494:pharmacology; D040761:Biomimetic Materials / Q000494:pharmacology; D055396:Bone Morphogenetic Protein 2 / Q000737:chemistry / Q000494:pharmacology; D001842:Bone and Bones / Q000737:chemistry* / Q000187:drug effects; D002417:Cattle; D002448:Cell Adhesion; D020099:Coated Materials, Biocompatible / Q000494:pharmacology; D015743:Giant Cells, Foreign-Body / Q000737:chemistry / Q000166:cytology; D006801:Humans; D010012:Osteogenesis / Q000187:drug effects; D051381:Rats; D023822:Tissue Engineering / Q000379:methods*; D014025:Titanium / Q000737:chemistry
D001672:Biocompatible Materials; D055396:Bone Morphogenetic Protein 2; D020099:Coated Materials, Biocompatible; D014025:Titanium