NFKB1 and thyroid gland follicular carcinoma: In order to see, whether the NFκB-p65 location and content of MCF-7 cells is like that of FTC-133 follicular thyroid cancer cells14 involved in the cellular processes taking place during the first 24 h of RPM-exposure, we performed a NFκB-p65 immunofluorescence staining and Western blot analyses.