2results about How to "Strong expansion ability" patented technology

The invention relates to the technical field of immune cell preparation, and particularly discloses an NK cell culture medium, an NK cell and a culture method and application of the NK cell. The NK cell culture medium comprises cell factors IL2, IL21 and TGF beta; the system further comprises IL4. The NK cell obtaining method comprises the step of contacting cells with the culture medium. The NK cells obtained by the invention have relatively high cell proliferation ability, and the proliferation ability, motility and in-vivo effectiveness of the cells after cryopreservation recovery are high.