Diagnostic application of hMLH1 methylation in hereditary non-polyposis colorectal cancer.

Diagnostic application of hMLH1 methylation in hereditary non-polyposis colorectal cancer.
复制标题

DOI:
10.1155/2004/371941
复制
发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Matsubara N
Matsubara N
中科院分区:
医学4区
文献类型:
--
作者:
Matsubara N

文献摘要

参考文献

被引文献

相似文献

由于错配修复(MMR)缺陷而导致的结直肠癌(CRC)在未选择的CRC中具有独特的特征。这些CRC在生物学上侵袭性较低,因此显示出更好的预后,但对基于5FU的化疗不太敏感。MMR缺陷的CRC来源于遗传和散发两种原因。MMR基因(hMLH1、hMSH2、hMSH6和hPMS2)的种系失活是遗传性CRC伴MMR缺陷(Lynch综合征)的基础,hMLH1基因的表观遗传沉默导致散发性CRC伴MMR缺陷。遗传性和散发性CRC合并MMR缺陷可通过微卫星不稳定性(MSI)检测或免疫组化分析在一般CRC中检出。Lynch综合征可以通过临床标准或通过检测MMR基因中的致病性种系突变的遗传学检测来诊断。然而,临床标准和基因检测都不足以诊断Lynch综合征。由于用于诊断Lynch综合征的基因检测是昂贵的,并且并不总是识别致病性种系突变,因此需要有效且廉价的筛查程序。在此,我们提出了一种可能的应用甲基化试验结合MSI或病理分析作为一种有效的和节省成本的新策略,筛选林奇综合征。
Colorectal cancer (CRC) due to mismatch repair (MMR) defect has distinct characteristics among unselected CRCs. These CRCs are biologically less aggressive and, thus, showing better prognosis but less sensitive to the 5FU-based chemotherapy. CRCs with MMR defect derive from both hereditary and sporadic reasons. Germline inactivation of MMR genes (hMLH1, hMSH2, hMSH6, and hPMS2) underlies the hereditary CRC with MMR defect (Lynch syndrome) and epigenetic silencing of hMLH1 gene causes the sporadic CRC with MMR defect. Hereditary and sporadic CRC with MMR defect can be detectable by microsatellite instability (MSI) test or immunohistochemical analysis among general CRCs. Lynch syndrome can be diagnosed by the clinical criteria or by genetic test to detect pathogenic germline mutations in MMR genes. However, both clinical criteria and genetic test are inadequate for the diagnosis of Lynch syndrome. Since genetic test for the diagnosis of the Lynch syndrome is expensive and not always identify pathogenic germline mutations, effective and inexpensive screening program is desirable. Here we propose a possible application of methylation test combined with MSI or pathological analysis as an effective and a cost-saving new strategy for screening of Lynch syndrome.
DOI: 10.1073/pnas.96.22.12661
发表时间: 1999-10-26
影响因子: 11.1
作者:
Kuismanen, SA;Holmberg, MT;Peltomäki, P
通讯作者: Peltomäki, P
DOI: 10.1038/sj.onc.1204891
发表时间: 2001-10-25
期刊: ONCOGENE
影响因子: 8
作者:
Deng, GR;Chen, A;Kim, YS
通讯作者: Kim, YS
DOI: 10.1007/s004390050585
发表时间: 1997-11-01
期刊: HUMAN GENETICS
影响因子: 5.3
作者:
Tannergard, P;Liu, T;Lindblom, A
通讯作者: Lindblom, A
DOI: 10.1073/pnas.96.15.8681
发表时间: 1999-07-20
影响因子: 11.1
作者:
Toyota, M;Ahuja, N;Issa, JPJ
通讯作者: Issa, JPJ
DOI: 10.1097/00000478-199910000-00010
发表时间: 1999-10-01
影响因子: 5.6
作者:
Marcus, VA;Madlensky, L;Redston, M
通讯作者: Redston, M