Abstract
The cell adhesion topography of mouse fibroblasts growing on glass substrates has been investigated. In order to compare cell adhesion on covered and uncovered glass, substrates were partly exposed to a solution with 0.1 mg/ml polylysine (300 kDa) for 15 min before incubation with cell suspension. After cultivation for 1, 3, 6, and 24 h their adhesion was visualised by total internal reflection microscopy. In the presence of polylysine, cells incubated for 1 h were strongly attracted to the substrate, leading to a typical cell adhesion topography characterised by round concavities under the ventral cell membrane with an approximate diameter of 1 μm. The cavity-surrounding rims were tightly bound to the glass surface. During further cell cultivation, the topography changed into a well-organised adhesion pattern with focal contact areas on the periphery of the cells. In contrast to the polylysine-mediated adhesion, cells growing on untreated surfaces did not exhibit the cavity-like topography at any stage of cultivation, but a more point spread adhesion with a dense clustering of contact-forming areas.
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Hornung, J., Fuhr, G. (1998). Influence of polylysine on adhesion of fibroblasts to glass substrates visualized by total internal reflection microscopy. In: EBO — Experimental Biology Online Annual 1996/97. EBO — Experimental Biology Online Annual, vol 1996/1997. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-00932-1_10
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DOI: https://doi.org/10.1007/978-3-662-00932-1_10
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