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    • 8. 发明授权
    • HERPES SIMPLEX VIRUS TYPE 1 (HSV-1)-DERIVED VECTOR FOR SELECTIVELY INHIBITING MALIGNANT CELLS AND METHODS FOR ITS USE TO TREAT CANCERS AND TO EXPRESS DESIRED TRAITS IN MALIGNANT AND NON-MALIGNANT MAMMALIAN CELLS
    • 用于选择性抑制恶性细胞的HERPES SIMPLEX病毒1型(HSV-1)载体及其用于治疗癌症并在恶性和非恶性肿瘤细胞中表达所需的病原体的方法
    • US06774119B1
    • 2004-08-10
    • US09299817
    • 1999-04-26
    • Steven L. WechslerAnthony B. NesburnGuey-Chuen PerngJohn S. YuKeith L. Black
    • Steven L. WechslerAnthony B. NesburnGuey-Chuen PerngJohn S. YuKeith L. Black
    • A61K4800
    • C12N7/00A61K39/00A61K48/00C07K14/005C12N15/86C12N2710/16622C12N2710/16643C12N2710/16661
    • Disclosed is a method of selectively inhibiting the growth of malignant cells in mammals, including humans. The method selectively inhibits the growth of malignant cells of all varieties, and is particularly useful in treating brain tumors and other malignancies of the central nervous system. The method employs HSV-1-derived vectors containing a DNA having a deletion in both copies of the LAT gene and both copies of the ICP34.5 gene of HSV-1. The vectors are delivered to malignant cells either in vivo or in vitro, in accordance with the method. The HSV-1-derived expression vectors are non-neurovirulent and do not spontaneously reactivate from latency, and they optionally contain a functional HSV thymidine kinase gene, which can enhance the effectiveness against cancer of drug treatment with gancyclovir or acyclovir. Alternatively, the HSV-1-derived vectors contain at least one transcriptional unit of a LAT promoter sequence operatively linked to a nucleic acid having a nucleotide sequence encoding a polypeptide toxic for cells expressing the vector, for example, human interferon-&ggr;. A method of expressing in a mammalian cell a gene encoding a preselected protein, a method of treating a genetic defect, and a method of detecting an HSV-1 expressing cell also employ vectors of the present invention that contain at least one transcriptional unit of a constitutive LAT promoter operatively linked to and controlling the transcription of a gene encoding a preselected protein. Also, disclosed are kits for expressing in a mammalian cell a gene encoding a preselected protein, useful for practicing the methods, and mammalian cells containing the HSV-derived vectors.
    • 公开了一种选择性抑制包括人在内的哺乳动物中恶性细胞生长的方法。 该方法选择性地抑制所有品种的恶性细胞的生长,并且特别可用于治疗中枢神经系统的脑肿瘤和其他恶性肿瘤。 该方法使用含有两个拷贝的LAT基因和HSV-1的ICP34.5基因的两个拷贝的具有缺失的DNA的HSV-1衍生载体。 根据该方法,在体内或体外将载体递送至恶性细胞。 HSV-1衍生的表达载体是非神经毒性的,并且不会从潜伏期自发地再激活,并且它们任选地含有功能性HSV胸苷激酶基因,其可以增强用喷昔洛维或阿昔洛韦进行药物治疗的癌症的有效性。 或者,HSV-1衍生的载体含有至少一个LAT启动子序列的转录单位,该转录单位可操作地连接到具有编码对表达载体的细胞有毒的多肽的核苷酸序列的核酸,例如人类干扰素-γ。 在哺乳动物细胞中表达编码预选蛋白质的基因,治疗遗传缺陷的方法和检测表达HSV-1的细胞的方法的方法也采用本发明的载体,其含有至少一个转录单位 组成型LAT启动子与编码预选蛋白质的基因的转录有效连接并控制其转录。 此外,公开了用于在哺乳动物细胞中表达编码用于实施该方法的预选蛋白质的基因和含有HSV衍生载体的哺乳动物细胞的试剂盒。