摘要
目的了解急性早幼粒细胞白血病(APL)患者T细胞受体重排删除DNA环(TRECs)的含量,从而了解患者胸腺近期输出na觙veT细胞的水平。方法利用实时定量PCR(TaqMan)方法检测9例APL患者和14例正常人外周血单个核细胞(PBMC)TRECs的水平,并根据外周血中CD3阳性率计算CD3细胞中TRECs水平。结果正常人TRECs拷贝数为(4.10±3.65)/1000PBMC和(6.36±5.28)/1000CD+3细胞,APL患者TRECs拷贝数为(0.13±0.22)/1000PBMC和(0.77±1.60)/1000CD+3细胞,与正常人相比均有显著性差异(P=0.0004,P=0.0005)。结论率先报道了APL患者胸腺近期输出na觙veT细胞功能明显降低的情况。
Objective To analyze the T- cell receptor excision DNA circles (TRECs) level and evaluate the thymic recent output nave T cells function in patients with acute promyelocytic leukemia (APL). Methods Quantitative detection of TRECs in DNA of peripheral blood mononuclear cells (PBMC) from 9 cases with APL were preformed by real- time PCR (TaqMan) analysis. The TRECs- number was related to the number of T- cells by determination of the number of CD-3 positive cells. 14 normal individuals served as controls. Results In comparison with normal individuals [ (4.10±3.65) copies/1000 PBMC and (6.36±5.28) copies/1000 CD+3 cells], a dramatic reduction of TRECs values in patients with APL [ (0.13±0.22) copies/1000 PBMC and (0.77±1.60) copies/1000 CD+3 cells] could be found (P =0.0004, P =0.0005). Conclusions This is, to our knowledge, the first description of TRECs level which was markedly reduced in APL patients.
出处
《肿瘤研究与临床》
CAS
2005年第3期151-152,共2页
Cancer Research and Clinic
基金
国家自然科学基金(30270579)
广东省自然科学基金重点项目(23001)
广东省教育厅"千百十工程"优秀人才培养基金项目(Q校02022)