Published in:
01-07-2012 | Experimental Study
An emerging cell-based strategy in orthopaedics: endothelial progenitor cells
Authors:
Kivanc Atesok, Tomoyuki Matsumoto, Jon Karlsson, Takayuki Asahara, Anthony Atala, M. Nedim Doral, Rene Verdonk, Ru Li, Emil Schemitsch
Published in:
Knee Surgery, Sports Traumatology, Arthroscopy
|
Issue 7/2012
Login to get access
Abstract
Purpose
The purpose of this article was to analyze the results of studies in the literature, which evaluated the use of endothelial progenitor cells (EPCs) as a cell-based tissue engineering strategy.
Methods
EPCs have been successfully used in regenerative medicine to augment neovascularization in patients after myocardial infarction and limb ischemia. EPCs’ important role as vasculogenic progenitors presents them as a potential source for cell-based therapies to promote bone healing.
Results
EPCs have been shown to have prominent effects in promoting bone regeneration in several animal models. Evidence indicates that EPCs promote bone regeneration by stimulating both angiogenesis and osteogenesis through a differentiation process toward endothelial cell lineage and formation of osteoblasts. Moreover, EPCs increase vascularization and osteogenesis by increased secretion of growth factors and cytokines through paracrine mechanisms.
Conclusion
EPCs offer the potential to emerge as a new strategy among other cell-based therapies to promote bone regeneration. Further investigations and human trials are required to address current questions with regard to biology and mechanisms of action of EPCs in bone tissue engineering.