Immunophenotyping of eighty six children with acute lymphoblastic leukemia by three-color flow cytometry.
- Author:
Suigui WAN
1
;
Wenyu GONG
;
Xuejing SUN
;
Juan XU
;
Ding TIAN
Author Information
- Publication Type:Journal Article
- MeSH: Antigens, CD; analysis; Child; Flow Cytometry; methods; Humans; Immunophenotyping; Precursor Cell Lymphoblastic Leukemia-Lymphoma; immunology
- From: Chinese Journal of Hematology 2002;23(2):83-86
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVESTo evaluate the specificity of three-color flow cytometry in childhood acute lymphoblastic leukemia (ALL) immunophenotyping.
METHODSImmunophenotyping was performed by three-color flow cytometry analysis using CD(45)/SSC gating.
RESULTSThe percentage of blasts was correlated better with leukemic cell count compared with that of FSC/SSC, and the false positive results were low. Among eighty six cases of ALL, 95.3% was B-ALL, in which common-ALL and Pro-B-ALL were 76.8% and 6.1%, respectively, and 2.3% was T-ALL. CD(34)(+) and myeloid-associated antigen expression were observed in 57.0% and 34.9% of the cases, respectively, among which Pro-B-ALL was the commonest. CD(33) was more commonly expressed than CD(13) in Pro-B-ALL cases, but no difference in the expression between these two antigens in other subtypes.
CONCLUSIONGating of CD(45)/SSC eliminated effection of normal cells to blasts in bone marrow, with which the immunophenotyping results were more reliable.
