Molecular cytogenetic analysis of 11 new breast cancer cell lines.

Molecular cytogenetic analysis of 11 new breast cancer cell lines.
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DOI:
10.1038/sj.bjc.6695007
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发表时间:
1999-12
影响因子:
8.8
通讯作者:
Ethier, SP
Ethier, SP
中科院分区:
医学1区
文献类型:
--
作者:
Forozan, F;Veldman, R;Ammerman, CA;Parsa, NZ;Kallioniemi, A;Kallioniemi, OP;Ethier, SP

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我们描述了一个调查的遗传变化的比较基因组杂交(CGH)在11人乳腺癌细胞系最近在我们的实验室建立。最常见的增益发生在8 q(73%),1 q(64%),7 q(64%),3q(45%)和7 p(45%),而损失最常见的是Xp(54%),8 p(45%),18 q(45%)和Xq(45%)。许多细胞系通过CGH显示突出的局部DNA扩增。这些基因座中有三分之一影响乳腺癌癌基因,其扩增用特异性探针进行了验证:17 q12(两个ERBB 2扩增的细胞系),11 q13(两个cyclin-D1),8 p11-p12(两个FGFR 1)和10 q25(一个FGFR 2)。影响8 q的增益和扩增是这些细胞系中最常见的遗传改变,在8 q22-q23处涉及最小的常见区域。在任何细胞系中均未发现高水平MYC(8 q24)扩增。三分之二的扩增位点发生在与已建立的癌基因无关的位点,如1 q41-q43、7 q21-q22、7 q31、8 q23、9 p21-p23、11 p12-p14、15 q12-q14、16 q13-q21、17 q23、20 p11-p12和20 q13。这些位置中有几个以前没有报道过,可能含有重要的基因,这些基因的扩增在癌症发展过程中被选择。总之,这组乳腺癌细胞系显示突出的DNA扩增,应有助于发现和功能分析的基因和信号转导通路有助于乳腺癌的发展。© 1999癌症研究运动
We describe a survey of genetic changes by comparative genomic hybridization (CGH) in 11 human breast cancer cell lines recently established in our laboratory. The most common gains took place at 8q (73%), 1q (64%), 7q (64%), 3q (45%) and 7p (45%), whereas losses were most frequent at Xp (54%), 8p (45%), 18q (45%) and Xq (45%). Many of the cell lines displayed prominent, localized DNA amplifications by CGH. One-third of these loci affected breast cancer oncogenes, whose amplifications were validated with specific probes: 17q12 (two cell lines with ERBB2 amplifications), 11q13 (two with cyclin-D1), 8p11–p12 (two with FGFR1) and 10q25 (one with FGFR2). Gains and amplifications affecting 8q were the most common genetic alterations in these cell lines with the minimal, common region of involvement at 8q22–q23. No high-level MYC (at 8q24) amplifications were found in any of the cell lines. Two-thirds of the amplification sites took place at loci not associated with established oncogenes, such as 1q41–q43, 7q21–q22, 7q31, 8q23, 9p21–p23, 11p12–p14, 15q12–q14, 16q13–q21, 17q23, 20p11–p12 and 20q13. Several of these locations have not been previously reported and may harbour important genes whose amplification is selected for during cancer development. In summary, this set of breast cancer cell lines displaying prominent DNA amplifications should facilitate discovery and functional analysis of genes and signal transduction pathways contributing to breast cancer development. © 1999 Cancer Research Campaign
DOI: 10.1007/bf02096306
发表时间: 1996-01-01
影响因子: 2.5
作者:
Ethier, Stephen P.
通讯作者: Ethier, Stephen P.
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发表时间: 1993-01-01
影响因子: 3.8
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通讯作者: ETHIER, SP
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发表时间: 1998-07-01
期刊: NATURE MEDICINE
影响因子: 82.9
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发表时间: 1994-10-01
期刊: NATURE GENETICS
影响因子: 30.8
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通讯作者: TRENT, JM
DOI: 10.1016/0959-8049(93)90460-w
发表时间: 1993-01-01
影响因子: 8.4
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