| abstract |
The present invention relates to a technique for culturing natural killer cells (NK cells) applied to immunotherapy, and more particularly, immune cells that have passed one day or longer after blood sampling or have become considerably weaker. Serum-free immune cells that can effectively amplify and activate NK cells, and at the same time, can cultivate NK cells so as to significantly increase the proportion of NK cells in them compared to conventional immune cell culture methods A kit for adding to a culture medium, a method for culturing immune cells by using the kit, a serum-free immune cell cultured medium obtained using the kit or the culture method, and a cosmetic comprising the cultured medium It relates to a composition for use. |