Cells were fixed in 4% paraformaldehyde, and immunofluorescence staining was performed as described previously.11 (link) Antibodies against DAXX, E-cadherin, vimentin, CD44 and HDAC-1 were purchased from Cell Signaling (1/100). Antibodies against CD24 were purchased from Abcam (1/100). Goat anti-rabbit IgG—Alexa Fluor® 568 conjugate and goat anti-mouse IgG—Alexa Fluor®488 conjugate were purchased from Thermo Fisher Scientific (Waltham, MA). DAPI was added at the final step to reveal nuclei.
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