title: Sequential delivery of basic fibroblast growth factor and platelet-derived growth factor for angiogenesis.
abstract: An externally regulated delivery model that permits temporal separation of multiple angiogenic factors was used for the delivery of basic fibroblast growth factor (bFGF) and platelet-derived growth factor (PDGF). While bFGF plays a significant role in the sprouting of new capillaries, PDGF plays a role in the recruitment of mural cells, which stabilize neovessels. However, these two factors have been shown to inhibit each other, when presented together. Using the externally regulated model, sequential delivery of bFGF and PDGF led to not only increased endothelial cell migration, but also endothelial cell and vascular pericyte colocalization. More importantly, this delivery strategy was able to induce red blood cell-filled neovessels, suggesting integration of angiogenesis with the existing vasculature.
authors.affiliation: Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
authors.forename: Jillian E
authors.initials: JE
authors.lastname: Tengood
authors.forename: Ryan
authors.initials: R
authors.lastname: Ridenour
authors.forename: Ross
authors.initials: R
authors.lastname: Brodsky
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Russell
authors.forename: Steven R
authors.initials: SR
authors.lastname: Little
mesh_terms: D000818:Animals; D002465:Cell Movement / Q000187:drug effects*; D042783:Endothelial Cells / Q000166:cytology / Q000378:metabolism*; D016222:Fibroblast Growth Factor 2 / Q000494:pharmacology*; D051379:Mice; D018919:Neovascularization, Physiologic / Q000187:drug effects* / Q000502:physiology; D020286:Pericytes / Q000166:cytology / Q000378:metabolism*; D010982:Platelet-Derived Growth Factor / Q000494:pharmacology*
chemical_list: D010982:Platelet-Derived Growth Factor; D016222:Fibroblast Growth Factor 2