Figure 6. TGFβ induces hypopigmentation, inhibits dendrite formation and increases cell motility.
A) Cell pellets of B16F2 cells treated with H89 αMSH or TGFβ for 48 hours are shown. Numbers indicate digital analysis of pellet darkness. B) NIRVE (white - collected between 410-530nm following illumination at 790nm) and F-actin (red) merged images of B16F2 and 4599 mouse melanoma cells treated with αMSH for 24hrs and, where indicated TGFβ1 or TGFβ2 for 24 hours prior to α-MSH treatment are shown. Scale bar is 50μm. C) i) B16F2 cells plated on deformable collagen/matrigel matrix (cyan) and stained for F-actin (green) and DNA (red). Scale bar is 50μm. ii) Box plots of cell speeds in microns/hour taken from phase contrast movies of B16F2 cells plated on deformable collagen/matrigel matrix over 16 hour period.*indicates p<0.01 Mann-Whitney test.