RESUMO
Objective To observe the dynamic change of activated cytotoxic T lymphocyte (CTL) percentage during periopera-tive period in the patients with breast cancer and to explore the value of detecting the peripheral blood activated CTL in monitoring the perioperative condition of breast cancer patients .Methods The lymphocytes in whole blood were defined by forward scatter and side scatter (FSC/SSC) signal parameters by adopting flow cytometry (FCM ) ,the CD3 ,CD8 and CD38 antigens on lymphocyte surface were detected by CD3-FITC ,CD8-APC and CD38-PE monoclonal antibody ,respectively .The CD3+CD8+CD38+ percentage in 20 healthy people were detected with the established method to determine the reference ranges ,and the dynamic changes of CD3+CD8+ CD38+ cells percentage in total T cells and cytotoxic T cells of 33 patients with breast cancer during perioperative period were observed .Results The percentages of CD3+ CD8+ CD38+ /CD3+ and CD3+ CD8+ CD38+ /CD3+ CD8+ in healthy group were (13 .46 ± 4 .08)% and (29 .98 ± 9 .1)% ,respectively .Both the CD3+ CD8+ CD38+ /CD3+ [(10 .44 ± 6 .61)% ] and CD3+ CD8+CD38+ /CD3+CD8+ [(22 .34 ± 10 .68)% ] before operation in 33 patients with breast cancer were significantly lower than those in healthy group (P0 .05) .Conclusion Observing the dynamic change of CD3+CD8+CD38+ cells percentage has an impor-tant significance for monitoring the perioperative condition of the patients with breast cancer ,contributing to get the activated CTL recovery situation of the patients and to choose the correct chemotherapy occasion for the patients .