In vitro, the spleen cells from LEW rats can irritate the proliferation of CD4~+CD25~+ T cells more obviously than the syngeneic spleen cells.

• 混合淋巴细胞反应中,LEW大鼠的脾细胞比DA大鼠自身的脾细胞更能刺激CD4+CD25+T细胞的增殖。