title: Biomimetic microtopography to enhance osteogenesis in vitro.
abstract: Biomimicry is being used in the next generation of biomaterials. Tuning material surface features such as chemistry, stiffness and topography allow the control of cell adhesion, proliferation, growth and differentiation. Here, microtopographical features with nanoscale depths, similar in scale to osteoclast resorption pits, were used to promote in vitro bone formation in basal medium. Primary human osteoblasts were used to represent an orthopaedically relevant cell type and analysis of adhesions, cytoskeleton, osteospecific proteins (phospho-Runx2 and osteopontin) and mineralisation (alizarin red) was performed. The results further demonstrate the potential for biomimicry in material design and show that the osteoblast response can be tuned from changes in feature size.
authors: Centre for Cell Engineering, Institute of Molecular, Cell & Systems Biology, College of Medical, Veterinary and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
authors: Andrew
authors: A
authors: Wilkinson
authors: Rachael N
authors: RN
authors: Hewitt
authors: Laura E
authors: LE
authors: McNamara
authors: David
authors: D
authors: McCloy
authors: R M
authors: RM
authors: Dominic Meek
authors: Matthew J
authors: MJ
authors: Dalby
mesh_terms: D001672:Biocompatible Materials / Q000378:metabolism; D032701:Biomimetics; D002448:Cell Adhesion / Q000502:physiology; D002478:Cells, Cultured; D003599:Cytoskeleton / Q000378:metabolism / Q000648:ultrastructure; D006801:Humans; D010006:Osteoblasts / Q000166:cytology / Q000502:physiology; D010012:Osteogenesis / Q000502:physiology*; D053495:Osteopontin / Q000378:metabolism; D013499:Surface Properties
chemical_list: D001672:Biocompatible Materials; D053495:Osteopontin