Method for analysis of cytosine methylation
    2.
    发明申请
    Method for analysis of cytosine methylation 审中-公开
    胞嘧啶甲基化分析方法

    公开(公告)号:US20090075251A1

    公开(公告)日:2009-03-19

    申请号:US10594013

    申请日:2005-03-24

    IPC分类号: C12Q1/68

    摘要: A method for the analysis of cytosine methylations in DNA is described. Here, the DNA to be investigated is first chemically or enzymatically converted. Then a promoter is introduced into the DNA. After this, the DNA is converted to RNA. The methylation pattern of the DNA can be concluded in different ways by means of an analysis of the RNA. The RNA is preferably fragmented chemically or enzymatically prior to the analysis, whereby the fragmenting results depend on the methylation pattern of the DNA. The method according to the invention is particularly suitable for the diagnosis and prognosis of cancer disorders and other diseases associated with a modification of the methylation pattern.

    摘要翻译: 描述了分析DNA中胞嘧啶甲基化的方法。 这里,待研究的DNA首先被化学或酶转化。 然后将启动子引入DNA。 之后,将DNA转化为RNA。 DNA的甲基化模式可以通过RNA的分析以不同的方式得出结论。 优选在分析之前将RNA片段化学或酶促,由此片段化结果取决于DNA的甲基化模式。 根据本发明的方法特别适合于与甲基化模式的改变相关的癌症病症和其它疾病的诊断和预后。

    Method for the quantification of methylated DNA
    5.
    发明申请
    Method for the quantification of methylated DNA 审中-公开
    甲基化DNA定量的方法

    公开(公告)号:US20050287553A1

    公开(公告)日:2005-12-29

    申请号:US11100779

    申请日:2005-04-06

    IPC分类号: C12Q1/68 G06F19/00 C12P19/34

    摘要: Particular aspects of the present invention provide a method for quantification of two different variations of a DNA sequence. Particularly, the invention relates to a quantification of methylated DNA, and for this purpose, the test DNA is converted so that cytosine is converted to uracil, while 5-methylcytosine remains unchanged. The converted DNA is amplified by means of a real-time PCR, wherein two labeled real-time probe types are utilized: one specific for methylated DNA; and one for unmethylated DNA. Preferably, the degree of methylation of the test DNA is calculated from the ratio of the signal intensities of the probes or from the Ct values. The inventive methods have substantial utility for diagnosis and prognosis of cancer and other disorders associated with altered or characteristic DNA methylation status, as well as having substantial utility for analysis of SNPs, allelic expression, and prediction of drug response, drug interactions, among other uses.

    摘要翻译: 本发明的特定方面提供了用于定量DNA序列的两个不同变体的方法。 特别地,本发明涉及甲基化DNA的定量,为此目的,转化测试DNA使得胞嘧啶转化为尿嘧啶,而5-甲基胞嘧啶保持不变。 通过实时PCR扩增转化的DNA,其中使用两种标记的实时探针类型:一种特异性用于甲基化DNA; 一个用于未甲基化的DNA。 优选地,根据探针的信号强度与Ct值的比值来计算测试DNA的甲基化程度。 本发明的方法具有用于诊断和预测与改变或特征性DNA甲基化状态相关的癌症和其他病症的实质性用途,并且具有用于分析SNP,等位基因表达和药物反应预测,药物相互作用以及其它用途的实质性用途 。