Investigating the limits of filopodial sensing: a brief report using SEM to image the interaction between 10 nm high nano-topography and fibroblast filopodia

Dalby, M.J. , Riehle, M.O. , Johnstone, H., Affrossman, S. and Curtis, A.S.G. (2004) Investigating the limits of filopodial sensing: a brief report using SEM to image the interaction between 10 nm high nano-topography and fibroblast filopodia. Cell Biology International, 28(3), pp. 229-236. (doi:10.1016/j.cellbi.2003.12.004)

Dalby, M.J. , Riehle, M.O. , Johnstone, H., Affrossman, S. and Curtis, A.S.G. (2004) Investigating the limits of filopodial sensing: a brief report using SEM to image the interaction between 10 nm high nano-topography and fibroblast filopodia. Cell Biology International, 28(3), pp. 229-236. (doi:10.1016/j.cellbi.2003.12.004)

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Publisher's URL: http://dx.doi.org/10.1016/j.cellbi.2003.12.004

Abstract

Having the ability to control cell behaviour would be of great advantage in tissue engineering. One method of gaining control over cell adhesion, proliferation, guidance and differentiation is use of topography. Whilst it has be known for some time that cells can be guided by micro-topography, it is only recently becoming clear that cells will respond strongly to nano-scale topography. The fact that cells will take cues from their micro- and nano-environment suggests that the cells are in some way 'spatially aware'. It is likely that cells probe the shape of their surroundings using filopodia, and that this initial filopodia/topography interaction may be critical to down-stream cell reactions to biomaterials, or indeed, the extracellular matrix. One intriguing question is how small a feature can cells sense? In order to investigate the limits of cell sensing, high-resolution scanning electron microscopy has been used to simultaneously view cell filopodia and 10 nm high nano-islands. Fluorescence microscopy has also been used to look at adhesion formation. The results showed distinct filopodial/nano-island interaction and changes in adhesion morphology.

Item Type:Articles
Keywords:Nano-topography, nano-bioscience, filopodia, cell sensing, adhesion.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Curtis, Professor Adam and Dalby, Professor Matthew and Riehle, Dr Mathis
Authors: Dalby, M.J., Riehle, M.O., Johnstone, H., Affrossman, S., and Curtis, A.S.G.
Subjects:Q Science > QR Microbiology
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
University Centres > Glasgow Materials Research Initiative
Journal Name:Cell Biology International
ISSN:1065-6995

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