CELL CULTURE SUPPLEMENT FOR THE IN VITRO CULTIVATION OF CELLS AND A METHOD FOR CULTURING CELLS

摘要

A medium supplement for the in vitro cultivation of cells is described. Said medium supplement comprises a corticosteroid binding globulin. Furthermore, the present invention provides a method for the in vitro cultivation of cells. In the inventive method cells are cultured in presence of a steroid hormone and the steroid hormone concentration in the medium is changed during a day in a cyclic manner.