title: Repair of a critical-sized calvarial defect model using adipose-derived stromal cells harvested from lipoaspirate.
abstract: Craniofacial skeletal repair and regeneration offers the promise of de novo tissue formation through a cell-based approach utilizing stem cells. Adipose-derived stromal cells (ASCs) have proven to be an abundant source of multipotent stem cells capable of undergoing osteogenic, chondrogenic, adipogenic, and myogenic differentiation. Many studies have explored the osteogenic potential of these cells in vivo with the use of various scaffolding biomaterials for cellular delivery. It has been demonstrated that by utilizing an osteoconductive, hydroxyapatite-coated poly(lactic-co-glycolic acid) (HA-PLGA) scaffold seeded with ASCs, a critical-sized calvarial defect, a defect that is defined by its inability to undergo spontaneous healing over the lifetime of the animal, can be effectively show robust osseous regeneration. This in vivo model demonstrates the basis of translational approaches aimed to regenerate the bone tissue - the cellular component and biological matrix. This method serves as a model for the ultimate clinical application of a progenitor cell towards the repair of a specific tissue defect.
authors.affiliation: Department of Surgery, Stanford University.
authors.forename: David D
authors.initials: DD
authors.lastname: Lo
authors.forename: Jeong S
authors.initials: JS
authors.lastname: Hyun
authors.forename: Michael T
authors.initials: MT
authors.lastname: Chung
authors.forename: Daniel T
authors.initials: DT
authors.lastname: Montoro
authors.forename: Andrew
authors.initials: A
authors.lastname: Zimmermann
authors.forename: Monica M
authors.initials: MM
authors.lastname: Grova
authors.forename: Min
authors.initials: M
authors.lastname: Lee
authors.forename: Derrick C
authors.initials: DC
authors.lastname: Wan
authors.forename: Michael T
authors.initials: MT
authors.lastname: Longaker
mesh_terms: D000273:Adipose Tissue / Q000166:cytology*; D000818:Animals; D001861:Bone Regeneration / Q000502:physiology; D006801:Humans; D051379:Mice; D008819:Mice, Nude; D039902:Multipotent Stem Cells / Q000166:cytology; D012886:Skull / Q000293:injuries* / Q000502:physiology / Q000601:surgery*; D017154:Stromal Cells / Q000166:cytology*; D054457:Tissue Scaffolds