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    • 6. 发明申请
    • CATEGORIZATION OF DNA SAMPLES
    • DNA样品的分类
    • US20130078626A1
    • 2013-03-28
    • US13492187
    • 2012-06-08
    • Adam WasserstromDan Frumkin
    • Adam WasserstromDan Frumkin
    • C12Q1/68
    • C12Q1/6876C12Q1/6809C12Q1/6858C12Q1/6881C12Q2600/154C12Q2521/331C12Q2525/151C12Q2537/165
    • The present application describes methods for accurate and cost-effective categorization of DNA samples into different types of in vitro generated DNA or different types of natural DNA such as from different tissues and/or physiological/pathological states. The invention achieves categorization by comparing “signal ratios” that are correlated to ratios of methylation levels at specific genomic loci, but does not rely on calculation of actual methylation levels at any genomic locus. Therefore the disclosed inventive method eliminates the requirement for external DNA species and controls, thereby simplifying and increasing the accuracy of the assay. The described inventive technology also enables performing the categorization of DNA together with DNA profiling in the same reaction, thereby allowing for concomitant categorization and determination of identity of the samples.
    • 本申请描述了将DNA样品精确和成本有效地分类为不同类型的体外产生的DNA或不同类型的天然DNA例如来自不同组织和/或生理/病理状态的方法。 本发明通过比较与特定基因座位点甲基化水平的比例相关的信号比例来实现分类,但不依赖于任何基因组位点处的实际甲基化水平的计算。 因此,所公开的本发明方法消除了对外部DNA物种和对照的需求,从而简化并提高了测定的准确性。 所描述的本发明技术还能够在相同的反应中进行DNA分类以及DNA分析,从而允许对样品的同一性进行同时分类和确定。
    • 8. 发明申请
    • IDENTIFICATION OF SOURCE OF DNA SAMPLES
    • 鉴定DNA样品的来源
    • US20120003634A1
    • 2012-01-05
    • US13029719
    • 2011-02-17
    • Dan FRUMKINAdam WASSERSTROM
    • Dan FRUMKINAdam WASSERSTROM
    • C12Q1/68
    • C12Q1/6881C12Q1/6844C12Q1/6858C12Q2600/154C12Q2537/164C12Q2521/331
    • The present disclosure relates to methodology for fast and cost-effective identification of the source of DNA samples. DNA samples obtained from unknown or unrecognized tissues or cell types are analyzed according to the methodology described herein, yielding an identification of the tissue and/or cell type source. Identification is based on sequential biochemical procedures including methylation sensitive/dependent restriction and polymerase chain reaction, followed by analysis of the data. All biochemical steps are performed in a single test tube. The disclosure has immediate applications in forensic science for identification of the tissue source of DNA obtained from biological stains. The disclosure also has immediate applications in cancer diagnosis for identification.
    • 本公开涉及用于快速和成本有效地鉴定DNA样品来源的方法。 根据本文所述的方法分析从未知或未识别的组织或细胞类型获得的DNA样品,产生组织和/或细胞类型来源的鉴定。 鉴定是基于顺序生化程序,包括甲基化敏感/依赖性限制和聚合酶链反应,然后分析数据。 所有生化步骤都在单个试管中进行。 该披露在法医学中立即应用于鉴定从生物污渍获得的DNA的组织来源。 该公开内容还可以在癌症诊断中立即应用于鉴定。