Frequent dysregulation of the c-maf proto-oncogene at 16q23 by translocation to an Ig locus in multiple myeloma.

Frequent dysregulation of the c-maf proto-oncogene at 16q23 by translocation to an Ig locus in multiple myeloma.
复制标题

多发性骨髓瘤中 16q23 处的 c-maf 原癌基因易位至 Ig 位点而频繁失调。

DOI:
10.1182/blood.v91.12.4457
复制
发表时间:
1998
期刊:
影响因子:
20.3
通讯作者:
Michael Kuehl
Michael Kuehl
中科院分区:
医学1区
文献类型:
--
作者:
M. Chesi;P. Bergsagel;Oluwatoyin O Shonukan;Maria Luisa Martelli;L. Brents;Theresa Chen;Evelin Schrö;T. Ried;W. Kuehl;C. M. Doggett;A. B. Aldaz;Michael Kuehl

文献摘要

参考文献

被引文献

相似文献

通过易位到IgH(14 q32)或IgL(κ,2 p11或λ,22 q11)位点的癌基因失调是B细胞肿瘤发病机制中的常见事件。涉及IgH位点和染色体位点多样但非随机排列的易位发生在大多数多发性骨髓瘤(MM)肿瘤中,即使易位通常不能通过常规细胞遗传学分析检测到。在对21个MM系的易位进行的持续分析中,我们发现5个MM系中存在新型的、核型沉默的t(14;16)(q32.3;q23)易位,来自4个系的克隆断点分散在c-maf原癌基因16 q23着丝粒的约500-kb区域。另一个细胞系有一个t(16;22)(q23;q11),其断裂点位于c-maf的端粒,因此这6个细胞系中的易位断裂点包括c-maf。只有这6个细胞系过表达c-maf mRNA。如预测的c-maf易位失调,有一个c-maf等位基因的选择性表达在2个信息线与易位。这是第一个人类肿瘤中的基本拉链c-maf转录因子被证明是作为一个致癌基因的功能。
Dysregulation of oncogenes by translocation to an IgH (14q32) or IgL (kappa, 2p11 or lambda, 22q11) locus is a frequent event in the pathogenesis of B-cell tumors. Translocations involving an IgH locus and a diverse but nonrandom array of chromosomal loci occur in most multiple myeloma (MM) tumors even though the translocations often are not detected by conventional cytogenetic analysis. In a continuing analysis of translocations in 21 MM lines, we show that the novel, karyotypically silent t(14;16)(q32.3;q23) translocation is present in 5 MM lines, with cloned breakpoints from 4 lines dispersed over an approximately 500-kb region centromeric to the c-maf proto-oncogene at 16q23. Another line has a t(16;22)(q23;q11), with the breakpoint telomeric to c-maf, so that the translocation breakpoints in these 6 lines bracket c-maf. Only these 6 lines overexpress c-maf mRNA. As predicted for dysregulation of c-maf by translocation, there is selective expression of one c-maf allele in 2 informative lines with translocations. This is the first human tumor in which the basic zipper c-maf transcription factor is shown to function as an oncogene.
DOI: --
发表时间: 1991-02
期刊: Cancer research
影响因子: 11.2
作者:
W. Bellamy;W. Dalton;Mary C. Gleason;T. Grogan;J. Trent
通讯作者: W. Bellamy;W. Dalton;Mary C. Gleason;T. Grogan;J. Trent
DOI: 10.1016/0165-4608(94)00284-i
发表时间: 1995-07-01
影响因子: --
作者:
SAWYER, JR;WALDRON, JA;BARLOGIE, B
通讯作者: BARLOGIE, B