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    • 8. 发明申请
    • METHODS AND COMPOSITIONS FOR DIRECT CHEMICAL LYSIS
    • 直接化学分析的方法和组合
    • US20110059455A1
    • 2011-03-10
    • US12874602
    • 2010-09-02
    • Feng YangSha-Sha WangLaurence Michael VaughanMichael PorterElaine Rose
    • Feng YangSha-Sha WangLaurence Michael VaughanMichael PorterElaine Rose
    • C12Q1/68G01N33/53
    • C12Q1/6806C12N1/06C12Q1/708G01N33/56983G01N2333/025C12Q2527/137C12Q2527/125
    • A direct chemical lysis composition includes an assay compatible buffer composition and an assay compatible surfactant. When combined with a specimen storage composition, such compositions prevent undesired modifications to nucleic acid and proteins lysed from cells in the biological sample. Assays of samples from such compositions do not require expensive and time-consuming steps such as centrifugation and prolonged high temperature processing. The direct chemical lysis composition of the present invention permits direct nucleic acid extraction from the cells in the biological sample without the need to decant off the transport media or otherwise exchange the transport media with assay compatible buffers. There is no need to combine the sample with proteinase K or another enzyme to extract nucleic acids from the cells. A method for lysing cells to obtain target nucleic acid for assay and a kit for combining the direct chemical lysis composition with a sample are also contemplated.
    • 直接化学裂解组合物包括测定相容缓冲液组合物和测定相容性表面活性剂。 当与样品储存组合物组合时,这种组合物防止对生物样品中细胞裂解的核酸和蛋白质的不期望的修饰。 来自这些组合物的样品的测定不需要昂贵且耗时的步骤,例如离心和长时间的高温处理。 本发明的直接化学溶解组合物允许从生物样品中的细胞中直接进行核酸提取,而不需要从运输介质中滗出或以其它方式与测定相容的缓冲液交换传输介质。 不需要将样品与蛋白酶K或其他酶组合从细胞中提取核酸。 还考虑了用于裂解细胞以获得用于测定的靶核酸的方法和用于将直接化学裂解组合物与样品组合的试剂盒。