Immunophenotyping and its clinical significance in childhood acute lymphoblastic leukemia / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
; (12): 188-191, 2012.
Article
in Zh
| WPRIM
| ID: wpr-320689
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To study the immunophenotype and its relationship with clinical characteristics in children with acute lymphoblastic leukemia (ALL).</p><p><b>METHODS</b>Bone marrow or blood samples (2-3 mL) with heparin anticoagulation from 139 children with ALL were obtained, and immunophenotypes were identified by flow cytometry.</p><p><b>RESULTS</b>In 139 ALL children, there were 103 cases (74.1%) of B-ALL, 24 cases (17.3%) of T-ALL, 12 cases of T/B biphenotypic (8.6% of T/BALL). In the 103 children with B-ALL, CD19 (90.3%), CD10 (83.5%) and CD20 (27.2%) were expressed as major antigens. In the 24 children with T-ALL, the major antigens were CD3 (79.2%), CD7 (66.7%) and CD5 (33.3%). In the 12 children with B/T-ALL, T-lymphoid antigens included CD7 (50.0%) and CD5 (41.7%), while the B-lymphoid antigens included CD19 (50.0%) and CD10 (33.3%). Of the 139 children with ALL, 32 cases (23.0%) showed myeloid antigen expression (My+ ALL) and the main expression antigens were CD13, CD33, CD14 and MPO. CD34 was expressed in 31 cases. CD34-positive expression (15.6%) in My+ ALL children was significantly lower than in My-ALL children (24.3%). HLA-DR was expressed in 82 of the 139 ALL children. The expression of CD10, CD34 and HLA-DR in the standard-risk, medium risk, high-risk ALL children was significantly different. There were significant differences in gender and incidence of bleeding between the My+ ALL and My-ALL groups (P<0.05).</p><p><b>CONCLUSIONS</b>Immunetyping can differentiate the sources of leukemic cells. The expression of CD10, CD34 and HLA-DR antigen is related to the clinical classification of ALL.</p>
Full text:
1
Index:
WPRIM
Main subject:
HLA-DR Antigens
/
Immunophenotyping
/
Allergy and Immunology
/
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Type of study:
Prognostic_studies
Limits:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Infant
/
Male
Language:
Zh
Journal:
Chinese Journal of Contemporary Pediatrics
Year:
2012
Type:
Article