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Activated NK-92 cells inhibit SW480 cell proliferation. Compared with the control group, NK-92 cells stimulated with IL-2 significantly reduced SW480 cell proliferation, but this effect was not observed following treatment with NK-92 cells co-treated with pAb IL-15 and IL-2. *P<0.05. IL, interleukin; pAb, polyclonal antibody; NS, not significant.
