CTLs phenotype was identified by flow cytometry.

<p>We used the flow cytometry to detected the phenotype of CTLs. (A) control CTLs without labeled; (B) CTL were stained with monoclonal antibodies specific for CD3 (FITC labeled) and CD8 (PE labeled); (C) CTL were stained with monoclonal antibodies specific for CD3 (FITC labeled) and CD56 (PE labeled); (D) CTL were stained with monoclonal antibodies specific for CD226 (FITC labeled) and CD11a (PE labeled); (E) CTL were stained with monoclonal antibodies specific for CD305 (FITC labeled) and CD11a (PE labeled).