Roswell Park Memorial Institute (RPMI) 1640 medium was originally developed to culture human leukemic cells in suspension and as a monolayer. RPMI 1640 has since been found suitable for a variety of mammalian cells including HeLa, Jurkat, MCF-7, PC12, PBMC, astrocytes and carcinomas. Life Technologies offers a variety of Gibco® RPMI 1640 modifications for a range of cell culture applications. Find the right formulation using the media selector tool.