Immortalized temporary

摘要

The invention relates to a method for transiently immortalizing cells in which immortalizing proteins are introduced into the cells from the exterior, and to a method for obtaining cells in which organ-related cells are transiently immortalized by supplying immortalizing proteins externally and are remortalized after expansion. The invention furthermore relates to cells which are prepared by these methods, to the use of the cells for preparing a transplant and to immortalizing proteins which are to be used in the methods.