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Proliferation index and cytokine secretion of splenocytes from mice immunized with PvTRAg-26. (A) Splenocytes from mice immunized with or without PvTRAg-26 were stimulated with various concentrations of PvTRAg-26 for 72 h before testing, as indicated. The splenocytes were stimulated with Con A or LPS as positive controls, as indicated, *P < 0.05, **P < 0.01. (B) Cytokine secretion profile of the splenocytes from the antigen-immunized mice.
