Immunophenotype Analysis of Adult Patients with Acute Lymphoblastic Leukemia / 中国医科大学学报

ABSTRACT

Objective To study the immunophenotype and chromosome karyotype of 57 adult patients with newly?diagnostic acute lymphoblastic leukemia(ALL). Methods The immunophenotype and chromosome karyotype of 57 adult patients with newly?diagnostic ALL were determined by using flow cytometer and karyotyping,and then the clinical characteristics and significance were analyzed. Results In patients with B cell acute lymphoblastic leukemia(B?ALL),the expression of CD19 and CD22 were significantly higher than CD10 and CD20(P<0.05). The expression of CD7 and CD3 were much higher in patients with T cell acute lymphoblastic leukemia(T?ALL). As for the early antigen,patients of all subtypes of ALL showed high expression rate of CD34 and CD38. In addition,the HLA?DR was only detected in B?ALL. There was no difference in comparison with clinical characteristics,total rate of CR and rate of relapse between ALL with and without myeloid antigen expression. The expression rate of CD34 and HLA?DR was higher in My+?ALL(P<0.05). The relapse rate was much higher in these patients with abnormal karyotype than other pa?tients(P<0.05). Patients with high?risk karyotype showed higher expression rates of CD20 and CD3 than those with standard?risk. Conclusion The immunophenotypes and chromosome karyotypes show obviously heterogeneous features,and the patients with abnormal karyotypes have higher relapse rate. These above mentioned methods are applicable for the diagnosis and individualized treatment of ALL patients.