Single-cell analysis of the t(14;18)(q32;q21) chromosomal translocation in Hodgkin's disease demonstrates the absence of this translocation in neoplastic Hodgkin and Reed-Sternberg cells.

Single-cell analysis of the t(14;18)(q32;q21) chromosomal translocation in Hodgkin's disease demonstrates the absence of this translocation in neoplastic Hodgkin and Reed-Sternberg cells.
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对霍奇金病中 t(14;18)(q32;q21) 染色体易位的单细胞分析表明,肿瘤性霍奇金细胞和 Reed-Sternberg 细胞中不存在这种易位。

DOI:
10.1182/blood.v91.8.2866.2866_2866_2874
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发表时间:
1998
期刊:
影响因子:
20.3
通讯作者:
T. al Saati
T. al Saati
中科院分区:
医学1区
文献类型:
--
作者:
S. Gravel;G. Delsol;T. al Saati

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应用聚合酶链反应(PCR)技术和淋巴结总DNA提取物,在115例霍奇金病(HD)患者中检测到37例(32.2%)存在t(14;18)(q32;q21)易位。免疫组化检测58/96例(60.4%)HRS细胞bcl-2蛋白表达与此易位无相关性。为了鉴定携带t(14;18)易位的细胞,通过PCR扩增研究通过显微操作从淋巴结的冷冻组织切片分离的来自HRS细胞的单细胞DNA。在对相同的总DNA提取物进行的5次PCR实验中,选择在至少2次中显示相同大小的阳性条带的11例进行单细胞PCR。我们推测,这种重复的成功扩增可能表明肿瘤性HRS细胞中存在t(14;18)易位。来自移植到裸鼠中的t(14;18)阳性OCI LY 8细胞系的冷冻肿瘤切片的单个细胞用作阳性对照。bcl-2/JH重排,参与这一易位,可以从后者肿瘤的单细胞DNA扩增,而在所有的HD情况下,HRS细胞被发现是阴性的。我们的结论是t(14;18)易位不是局限于HRS细胞,但在非恶性B旁观者淋巴细胞,与这些肿瘤细胞混合。
Using the polymerase chain reaction (PCR) technique and total DNA extracts of Hodgkin's disease (HD)-involved lymph nodes, the t(14;18)(q32;q21) translocation was detected in 37 of 115 (32.2%) cases studied. No correlation was found between the presence of this translocation and bcl-2 protein expression in Hodgkin and Reed-Sternberg (HRS) cells detected by immunohistochemistry in 58 of 96 (60.4%) cases. To identify the cells carrying the t(14;18) translocation, single-cell DNA from HRS cells isolated by micromanipulation from frozen tissue sections of lymph nodes was investigated by PCR amplification. Eleven cases showing a positive band of the same size in at least two of five PCR experiments performed on the same total DNA extract were selected for single-cell PCR. We postulated that this repeated successful amplification could be indicative of the presence of the t(14;18) translocation in the neoplastic HRS cells. Single cells from frozen tumor sections of the t(14;18)-positive OCI LY8 cell line grafted into nude mice served as a positive control. The bcl-2/JH rearrangement, involved in this translocation, could be amplified from single-cell DNA of the latter tumor, whereas, in all of the HD cases, HRS cells were found to be negative. We conclude that the t(14;18) translocation is not localized in HRS cells, but in nonmalignant B bystander lymphocytes, admixed with these neoplastic cells.
通过Southern印迹杂交和聚合酶链式反应在霍奇金病中无法检测到bcl-2基因易位。
DOI: --
发表时间: 1992
期刊: The American journal of pathology
影响因子: --
作者:
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杂合基因bcl-2/IgH在滤泡性淋巴瘤中的表达分析。
DOI: --
发表时间: 1993
期刊: Blood
影响因子: 20.3
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DOI: --
发表时间: 1996-10
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
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在美国和日本患者的增生性淋巴组织中以相似的频率检测到 t(14;18)。
DOI: --
发表时间: 1992
期刊: The American journal of pathology
影响因子: --
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