title: [Expression of CD56 in acute leukemia and its clinical significance].
abstract: In order to investigate the expression of CD56 on acute leukemia cells and its clinical significance, samples from 70 patients with acute leukemia were analyzed with multicolor flow cytometry to determine the CD56 and other leukocyte differentiation antigens. The results showed that 16 of 70 cases (22.86%) were identified to express CD56, of which 1/35 (2.86%) patient with acute lymphocytic leukemia (ALL) and 15/31 (48.39%) with acute myelocytic leukemia (AML) were CD56 positive. The positive rate of CD56 in AML was significantly higher than that in ALL (P < 0.01). The expression of CD56 varied in AML subtypes. The positive rate (11/15) of CD56 in AML-M(0), -M(1) and -M(2) was significantly higher than that in AML-M(3), -M(4) and -M(5) (4/16) (P = 0.013). 13 of 15 AML with CD56 expression were also positive for HLA-DR (41.94%), and a significant positive correlation was found between the expression of CD56 and HLA-DR (r = 0.439, P = 0.014). It was concluded that CD56 mainly expressed in AML cells. The analysis of CD56 expression on acute leukemia is of great value in the diagnosis, prognosis prediction and monitoring of minimal residual disease in AML patients.
authors.affiliation: The Children's Hospital, School of Medicine of Zhejiang University, Hangzhou 310003, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yong-Min
authors.initials: YM
authors.lastname: Tang
authors.forename: Shi-Long
authors.initials: SL
authors.lastname: Yang
authors.forename: Hong-Qiang
authors.initials: HQ
authors.lastname: Shen
authors.forename: Bai-Qin
authors.initials: BQ
authors.lastname: Qian
authors.forename: Hua
authors.initials: H
authors.lastname: Song
authors.forename: Shu-Wen
authors.initials: SW
authors.lastname: Shi
authors.forename: Wei-Qun
authors.initials: WQ
authors.lastname: Xu
mesh_terms: D000293:Adolescent; D000328:Adult; D019002:CD56 Antigen / Q000096:biosynthesis*; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007223:Infant; D015470:Leukemia, Myeloid, Acute / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D016019:Survival Analysis
chemical_list: D019002:CD56 Antigen