[Abnormal expression of cCD79a/cCD22 in acute myeloid leukemia with t (8;21)].
ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2006;
27:187-9. [PMID:
16792922]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
OBJECTIVE
To report abnormal expression of cCD79a/cCD22 in four cases of acute myeloid leukemia (AML) with t (8;21).
METHODS
The characteristics of morphology, immunophenotype, chromosome karyotype (MIC) and clinical manifestations of 4 AML patients with t (8;21) expressing cCD79a/cCD22 were analyzed.
RESULTS
The features of the 4 patients were: (1) no difference in gender; (2) young age; (3) exmedullary infiltration may be present; (4) normal number of white blood cells in peripheral blood; (5) morphology showed acute myeloid leukemia with high percentage of blast cells; (6) B-lymphoid and myeloid immunophenotype, and high expression of CD34; (7) frequent depletion of Y chromosome and complex changes of chromosomes; (8) positive for AML1/ETO fusion gene; (9) response well to chemotherapy regimen which simultaneously treated myeloid and lymphocytic leukemia.
CONCLUSION
Abnormal expression of cCD79a/cCD22 in AML with t (8;21) (q22;q22) suggested that this kind of leukemia might be related with abnormal expression gene of B cell.
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