Use of force spectroscopy to investigate the adhesion of living adherent cells.
The use of force spectroscopy to study the adhesion of living fibroblasts to their culture substrate was investigated. Both primary fibroblasts (PEMF) and a continuous cell line (3T3) were studied on quartz surfaces. Using a fibronectin-coated AFM cantilever, it was possible to detach a large proportion of the 3T3 cells from the quartz surfaces. Their adhesion to the quartz surface and the effects of topography on this adhesion could be quantified. Three parameters characteristic of the adhesion were measured: the maximum force of detachment, the work of adhesion, and the distance of detachment. Few PEMF cells were detached under the same experimental conditions. The potential and limitations of this method in measuring cell/surface interactions for adherent cells are discussed.
Weder
Gilles
G
Swiss Centre for Electronics and Microtechnology, CSEM SA, Nanotechnology and Life Sciences, Jaquet-Droz 1, 2002 Neuchatel, Switzerland. gilles.weder@csem.ch
Blondiaux
Nicolas
N
Giazzon
Marta
M
Matthey
Nadège
N
Klein
Mona
M
Pugin
Raphaël
R
Heinzelmann
Harry
H
Liley
Martha
M
D016475:3T3 Cells; D000818:Animals; D002448:Cell Adhesion; D049109:Cell Proliferation; D005353:Fibronectins / Q000737:chemistry; D051379:Mice; D018625:Microscopy, Atomic Force / Q000379:methods*; D013499:Surface Properties
D005353:Fibronectins