ABSTRACT
Objective To investigate the changes of activation and apoptosis of T-lymphocyte in peripheral blood of patients with chronic obstructive pulmonary disease(COPD) at the attack and relieved stage and their clinical significance. Methods 64 cases of COPD were divided into 2 groups: the acute stage(n=34)and the relieved stage groups(n=30). The T-lymphocytes were marked by fluoromonoantibodies CD 3 +, CD 4 +, CD 25 + , CD 95 +, CD 3 +/CD 25 +, CD 8 +/CD 28 +,CD 8 +/CD 28 - and was counted by flow cytometry . Results Compared with the relieved stage, in patients with COPD at the acute attack period,the CD 3 +, CD 95 +, CD 3 +/ CD 25 +, CD 8 +/ CD 28 - were increased, CD 4 + ,CD 25 + had not obvious change, but CD 8 +/ CD 28 + was increased. Conclusions In COPD at the acute attack stage, the immune function was disordered as the result of the change of T subtype of lymphocytes and the reduction of total T lymphocyte.So except for treatment in accordance with their symptoms,immunodrug of cells should be used in order to raise the immune function of the patients.