The cells are procured from ATCC and they recommend to use the specified media supplied by ATCC itself. But since sigma is also providing the same RPMI 1640 media, I thought of going with that. But the problem now is that the media composition seems to be varied between sigma and the one recommended by ATCC. Does anyone have a suggestion of which media to use? Does anyone know all components for preparing complete RPMI 1640 media for culturing THP-1 cells?