Title of article :
EGF-stimulated lamellipod extension in adenocarcinoma cells
Author/Authors :
Rotsch، نويسنده , , Christian and Jacobson، نويسنده , , Ken and Condeelis، نويسنده , , John and Radmacher، نويسنده , , Manfred، نويسنده ,
Pages :
10
From page :
97
To page :
106
Abstract :
The extension of lamellipodia has been triggered by the application of epidermal growth factor (EGF). We have used an atomic force microscope (AFM) to investigate this lamellipodial extension. During extension we could detect an increase in height from about 500 nm for the stable lamellipodium to typical values of 600–800 nm for the extending lamellipodium. The AFM was also used to determine the mechanical properties of the lamellipodium where we found a decrease of the elastic modulus by a factor of 1.4 at the same location within the same cell. Both findings are consistent with the cortical expansion hypothesis, suggesting that severing of actin filaments, leading to a swelling of the cytoskeleton, generates the protrusive force during lamellipodial extension.
Keywords :
MTLn3 , Elasticity , AFM , chemotaxis , EGF
Journal title :
Astroparticle Physics
Record number :
2051142
Link To Document :
بازگشت