Shownin NK Expansion Kit is designed for the efficient ex vivo expansion of human natural killer (NK) cells. Compatible with mainstream immune cell culture media, it enables robust amplification of NK cells derived from various sources, including peripheral blood and umbilical cord blood. Under optimized conditions, NK cells can be expanded by 6,000 to 10,000 fold within 11 to 13 days, based on an initial NK cell proportion of approximately 10% in PBMCs. The resulting NK cell population exhibits high purity, with CD3⁻ CD56⁺ expression levels exceeding 90%.

NK Cell Expansion Performance

A: Comparative data on the 12-day expansion of NK cells from peripheral blood mononuclear cells. 

B: Comparative data on the 12-day expansion of NK cells from umbilical cord blood mononuclear cells. 

C: Positive rate of peripheral blood NK cells expanded and cryopreserved in the shownin's system.（Day12）

D: Positive rate of fresh peripheral blood NK cells expanded in the shownin's system.（Day12）

E: Positive rate of cryopreserved umbilical cord blood NK cells expanded in the shownin's system.（Day12）