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    • 7. 发明授权
    • Methods and compositions for detecting telomerase activity
    • 检测端粒酶活性的方法和组合物
    • US07390621B2
    • 2008-06-24
    • US10534978
    • 2003-11-12
    • Zhunagwu LiJun BaoHua MaoWenbin MaLina Li
    • Zhunagwu LiJun BaoHua MaoWenbin MaLina Li
    • C12Q1/68C12P19/34
    • C12Q1/6886C12Q1/68C12Q1/6841C12Q1/6851C12Q1/686C12Q2561/113C12Q2547/107C12Q2521/113C12Q2547/101C12Q2545/113
    • A method for determining telomerase activity using primer extension followed with real time PCR quantification is disclosed. The method of the present invention provides a rapid, sensitive and accurate measurement for telomerase activity in a biological sample. In one embodiment, the method includes the steps of: adding the biological sample to a reaction tube containing a first reaction mixture having a first primer and nucleoside triphosphates, a second reaction mixture having a second primer and a DNA polymerase, and a wax layer that separates the first reaction mixture from the second reaction mixture; incubating the biological sample with the first reaction mixture; admixing the extension product with the second reaction mixture; amplifying and quantifying the extension product using real-time PCR and a control template. In another embodiment, the detection method includes an in situ primer extension step that allows the production of the extension product within an intact cell. In this embodiment, the extension product can be preserved under appropriate conditions for an extended time before the completion of the quantification step.
    • 公开了使用引物延伸测定端粒酶活性的方法,随后进行实时PCR定量。 本发明的方法提供对生物样品中端粒酶活性的快速,灵敏和准确的测量。 在一个实施方案中,该方法包括以下步骤:将生物样品加入到含有具有第一引物和核苷三磷酸的第一反应混合物的反应管中,具有第二引物和DNA聚合酶的第二反应混合物和蜡层, 将第一反应混合物与第二反应混合物分离; 用第一反应混合物孵育生物样品; 将延伸产物与第二反应混合物混合; 使用实时PCR扩增和定量扩增产物和对照模板。 在另一个实施方案中,检测方法包括原位引物延伸步骤,其允许在完整细胞内产生延伸产物。 在本实施例中,扩展产品可以在适当的条件下在量化步骤完成之前延长一段时间。
    • 10. 发明授权
    • Halogenated dideoxy sugar derivates, preparation method and application thereof
    • 卤代二脱氧糖衍生物及其制备方法及应用
    • US09296774B2
    • 2016-03-29
    • US13540609
    • 2012-07-02
    • Hua Mao
    • Hua Mao
    • A01N43/04A61K31/70A01N43/16A61K31/35C07H5/04C07H5/06C08B37/00C07H11/04C07H5/02C07D493/04
    • C07H11/04C07D493/04C07H5/02
    • A halogenated dideoxy sugar derivative, having the following general structure I wherein X is halogen, R1 and R2 are H or Br; R3 and R4 are OH or OAc. The compounds 1-14 of the current invention has strong inhibition effect on human nasopharyngeal cancer CNE-2Z cells, human lung cancer A549 cells. human colon cancer HT-29 cells, human liver cancer Bel-7402 cells, human rectum cancer cells HCE 8693, human stomach cancer BGC-803 cells, human esophagus cancer CaEs-17 cells, human breast cancer cells MCF-7, human ovarian cancer cells A2780, pancreatic cancer cells PC-3, human bladder cells EJ, human brain glia cells TG-905, human leukemia cells K562, human melanoma M 14 cells and human anaplastic thyroid carcinoma TA-K cells. They can be used to prepare anti-tumor medicament and have significant clinic value.
    • 具有以下一般结构I的卤代双脱氧糖衍生物,其中X是卤素,R 1和R 2是H或Br; R3和R4是OH或OAc。 本发明化合物1-14对人鼻咽癌CNE-2Z细胞,人肺癌A549细胞具有强烈的抑制作用。 人结肠癌HT-29细胞,人肝癌Bel-7402细胞,人直肠癌细胞HCE 8693,人胃癌BGC-803细胞,人食管癌CaEs-17细胞,人乳腺癌细胞MCF-7,人卵巢癌 细胞A2780,胰腺癌细胞PC-3,人膀胱细胞EJ,人脑胶质细胞TG-905,人白血病细胞K562,人黑素瘤M14细胞和人间变性甲状腺癌TA-K细胞。 它们可用于制备抗肿瘤药物,具有显着的临床价值。