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Fig. 5. Immunofluorescent localization of T
R-I and caveolin-1 in Mv1Lu cells treated with and without cholesterol and TGF-1. Cells were treated with or without 50 µg/ml cholesterol at 37°C for 1 hour and incubated with and without 100 pM TGF-1 at 37°C for 30 minutes. The cells were then fixed with cold methanol and incubated with a goat antibody to TR-I (e-h) and rabbit antibody to caveolin-1 (a-d) followed by incubation with Rhodamine-conjugated donkey anti-goat antibody or FITC-conjugated mouse anti-rabbit antibody. The fluorescence in cells was examined using a fluorescent confocal microscope. Bar, 20 µm. The arrows indicate colocalization of TR-I and caveolin-1 at the cell surface (j).
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