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Role of PGE2 in the immunoregulatory activity of NK cells. (A) Statistical results for the restoration of Ki-67 expression and (B) the level of apoptosis with TSNs derived from SGC-7901 treated with NS398. (C) The concentration of PGE2 in TSNs as determined with an ELISA. (D) The concentration of PGE2 in TTCS and NTCS derived from five patients; white:NTCS; black:TTCS.
