-
摘要: 目的:探讨CD123在不同类型成熟B淋巴细胞肿瘤诊断和鉴别诊断中的意义。方法:选取297例成熟B淋巴细胞肿瘤患者作为研究对象,疾病类型包括慢性淋巴细胞白血病/小淋巴细胞淋巴瘤(CLL/SLL),套细胞淋巴瘤(MCL),滤泡性淋巴瘤(FL),脾边缘区淋巴瘤(SMZL),毛细胞白血病(HCL)和变异型HCL(HCLv)。采集患者的骨髓标本,通过流式细胞术分析其免疫表型,以及各类型疾病中异常淋巴细胞群CD123表达的抗原阳性比例及强度。结果:不同类型成熟B淋巴细胞肿瘤患者骨髓异常淋巴细胞群中,其CD123表达率及表达强度存在较大差异。其中156例CLL/SLL中CD123阳性比例约占3.21%,表达强度较低;45例MCL中CD123阳性比例约占8.89%,表达强度较高;62例FL中CD123阳性比例约占4.84%,表达强度较低;20例SMZL CD123阳性比例约占15.00%,表达强度较高;10例HCL CD123阳性比例占100%,且其表达强度最高;但4例HCLv未见CD123阳性表达。结论:CD123在成熟B淋巴细胞肿瘤常见类型中广泛表达,其表达率和强度尤其可作为HCL与其他亚类进行鉴别的重要指标之一。Abstract: Objective:To explore the significance of CD123 in the diagnosis and differential diagnosis in different types of mature B-cell neoplasms.Method:Bone marrow cells were collected from 297 patients with mature B-cell neoplasms,including CLL/SLL,MCL,FL,SMZL and HCL,HCLv.By using flow cytometry,the immunophenotype,CD123 antigen expression and fluorescence intensity in the bone marrow malignant cells were analyzed.Result:There were significant differences in CD123 expression and fluorescence intensity in the malignant cells of CLL/SLL,MCL,FL,SMZL,HCL and HCLv.CD123 was dim positive in 3.21% of 156 CLL/SLL,4.84% of 62 FL and was positive in 8.89% of 45 MCL,15.00% of 20 SMZL,especially CD123 was negative in all 4 HCLv and bright positive in all 10 HCL.Conclusion:CD123 is widely expressed in mature B-cell neoplasm and bright CD123 is useful in differentiate HCL from other types of mature B-cell neoplasm.
-
Key words:
- mature B-cell neoplasm /
- CD123 /
- flow cytometry
-
[1] Liu K,Zhu M,Huang Y,et al.CD123 and its potential clinical application in leukemias[J].Life Sci,2015,122:59-64.
[2] Moretti S,Lanza F,Dabusti M,et al.CD123(interleukin 3 receptor alpha chain)[J].J Biol Regul Homeost Agents,2001,15:98-100.
[3] Testa U,Pelosi E,Frankel A.CD123 is a membrane biomarker and a therapeutic target in hematologic malignancies[J].Biomark Res,2014,2:4.
[4] Leyton JV,Gao C,Williams B,et al.A radiolabeled antibody targeting CD123(+) leukemia stem cells-initial radioimmunotherapy studies in NOD/SCID mice engrafted with primary human AML[J].Leuk Res Rep,2015,4:55-59.
[5] Zeidan MA,Kamal HM,El Shabrawy DA,et al.Significance of CD34/CD123 expression in detection of minimal residual disease in B-ACUTE lymphoblastic leukemia in children[J].Blood Cells Mol Dis,2016,59:113-118.
[6] Wen Du,Juan Li,Wei Liu,et al.Interleukin-3 receptor α chain (CD123) is preferentially expressed in immature T-ALL and may not associate with outcomes of chemotherapy[J].Tumour Biol,2016,37:3817-3821.
[7] Muñoz L,Nomdedéu JF,López O,et al.Interleukin-3 receptor alpha chain (CD123) is widely expressed in hematologic malignancies[J].Haematologica,2001,86:1261-1269.
[8] Venkataraman G,Aguhar C,Kreitman RJ,et al.Characteristic CD103 and CD123 expression pattern defines hairy cell leukemia:usefulness of CD123 and CD103 in the diagnosis of mature B-cell lymphoproliferative disorders[J].Am J Clin Pathol,2011,136:625-630.
[9] 胡旸,陈艳,王丽华,等.用流式细胞术从B淋巴增殖性疾病中鉴别脾边缘带淋巴瘤[J].中国实验血液学杂志,2014,22(2):349-356.
计量
- 文章访问数: 209
- PDF下载数: 43
- 施引文献: 0