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. 2017 Nov 14;38(11):956-961.
doi: 10.3760/cma.j.issn.0253-2727.2017.11.011.

[Screening of adult Ph-like acute lymphoblastic leukemia by multiplex real-time quantitative PCR]

[Article in Chinese]
M Z Xu  1 , Q Y Fang, X Y Gong, J Feng, Y J Jia, Q H Li, K Q Liu, X L Zhao, K Ru, Z Tian, K J Tang, M Wang, J X Wang, Y C Mi
Affiliations

[Screening of adult Ph-like acute lymphoblastic leukemia by multiplex real-time quantitative PCR]

[Article in Chinese]
M Z Xu et al. Zhonghua Xue Ye Xue Za Zhi. .

Abstract
in English, Chinese

Objective: To investigate the feasibility of multiplex real-time RT-PCR with fluorescent probes in early screening of Ph-like acute lymphoblastic leukemia (ALL) and analyze the clinical feature and prognos. Method: A total of 118 adult B-ALL patients diagnosed between October 2010 and March 2016 were enrolled in this study. Multiplex RT-PCR was used to detect the Ph-like ALL related fusion gene and CRLF2 expression in 58 BCR-ABL and MLL rearrangement negative patients. The clinical features, treatment response and prognosis were analyzed in Ph-like fusion gene positive and/or CRLF2 over-expression patients. Result: Among 58 patients, 9 patients (9/58, 15.5%) showed Ph-like ALL related fusion genes positive and 10 patients (10/58, 17.2%) showed CRLF2 over-expression. There were statistical differences in age, WBC count, immunophenotypes, cytogenetics and risk stratification among Ph-like fusion gene positive or CRLF2 over-expression patients, Ph(+) patients, MLL(+) patients and B-other patients. The 2-year overall survival rates were 65%, 47%, 64% and 74% respectively among these four groups (P=0.043) . The 2-year relapse free survival rates were 51%, 39%, 62% and 70% respectively among these four groups (P=0.010) . Conclusion: Routine screening of Ph-like ALL by multiplex RTPCR is feasible.

目的： 探讨多重实时荧光定量PCR法早期、快速筛查Ph样急性淋巴细胞白血病（ALL）的可行性，了解Ph样ALL的临床特征及预后。 方法： 2010年10月至2016年3月收治的118例初诊成人B-ALL患者纳入研究，利用多重实时荧光定量PCR法检测其中58例BCR-ABL融合基因和MLL重排均阴性患者Ph样相关融合基因及细胞因子受体样因子2（CRLF2）表达情况。比较分析Ph样融合基因阳性和（或）CRLF2高表达患者的临床特征、疗效和预后。 结果： 检出Ph样融合基因阳性患者9例（9/58，15.5%），CRLF2高表达患者10例（10/58，17.2%）。Ph样融合基因阳性和（或）CRLF2高表达组、Ph阳性组、MLL重排阳性组以及其他患者组在年龄、WBC、免疫分型、细胞遗传学、危险度分组方面差异有统计学意义（P值均<0.01）。四组患者的2年总生存率分别为65%、47%、64%、74%（P=0.043），2年无复发生存率分别为51%、39%、62%、70%（P=0.010）。 结论： 采用多重实时荧光定量PCR法筛查Ph样ALL患者可行，Ph样ALL患者预后较差。.

Keywords: Gene, CRLF2; Leukemia, B-cell, Ph-like; Multiplex RT-PCR.

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Figures

图1
图1. EBF1-PDGFRB融合基因PCR鉴定（A）和测序（B）结果
M：DL2 000 DNA Marker；1：EBF1-PDGFRB融合基因阳性样本；2：阴性对照
图2
图2. 四组急性淋巴细胞白血病（ALL）患者的总生存（A）和无复发生存（B）比较
See this image and copyright information in PMC

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