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    • 51. 发明授权
    • RNA amplification method
    • RNA扩增法
    • US06271002B1
    • 2001-08-07
    • US09411074
    • 1999-10-04
    • Peter S. LinsleyJanell M. Schelter
    • Peter S. LinsleyJanell M. Schelter
    • C12P1934
    • C12N15/1096
    • The present invention relates to methods and kits for amplification of mRNA using a primer in PCR that contains an RNA polymerase promoter. The invention provides methods for amplification and detection of RNA derived from a population of cells, preferably eukaryotic cells and most preferably mammalian cells, which methods preserve fidelity with respect to sequence and transcript representation, and additionally enable amplification of extremely small amounts of mRNA, such as might be obtained from 106 mammalian cells. In typical embodiments of the invention, an RNA polymerase promoter (RNAP) is incorporated into ds cDNA by priming cDNA amplification by polymerase chain reaction (PCR) with an RNAP-containing primer. Following less than 20 cycles of PCR, the resultant RNAP-containing ds cDNA is transcribed into RNA using an RNA polymerase capable of binding to the RNAP introduced during cDNA synthesis. This combination of PCR and in vitro transcription (IVT) enables the generation of a relatively large amount of RNA from a small starting number of cells without loss of fidelity. RNAs generated using this method may be labeled and employed to profile gene expression in different populations of cells, e.g., by use of a polynucleotide microarray.
    • 本发明涉及使用含有RNA聚合酶启动子的PCR中的引物扩增mRNA的方法和试剂盒。 本发明提供了用于扩增和检测衍生自细胞群(优选真核细胞,最优选哺乳动物细胞)的RNA的方法,所述方法保持关于序列和转录物表达的保真度,并且还能够扩增极少量的mRNA,例如 可以从106个哺乳动物细胞获得。 在本发明的典型实施方案中,通过用含有RNAP的引物通过聚合酶链反应(PCR)引发cDNA扩增,将RNA聚合酶启动子(RNAP)引入ds cDNA。 在不到20个PCR循环后,使用能够结合cDNA合成引入的RNAP的RNA聚合酶将得到的含RNAP的ds cDNA转录成RNA。 PCR和体外转录(IVT)的这种组合使得能够从小的起始数量的细胞产生相对大量的RNA而不失去保真度。 使用该方法产生的RNA可以被标记并用于分析不同细胞群体中的基因表达,例如通过使用多核苷酸微阵列。
    • 59. 发明授权
    • Method of inhibiting immune system destruction of transplanted viable cells
    • 抑制移植活细胞免疫系统破坏的方法
    • US07041634B2
    • 2006-05-09
    • US09049865
    • 1998-03-27
    • Collin J. WeberMary K. HaglerPeter S. LinsleyJudith A. KappSusan A. Safley
    • Collin J. WeberMary K. HaglerPeter S. LinsleyJudith A. KappSusan A. Safley
    • A61K38/00
    • A61K9/5073A61K35/39A61K38/00A61K48/00C07K14/70521C07K2319/30C12N5/0676C12N5/0677Y10S424/812A61K2300/00
    • This invention provides a method of inhibiting viable cells transplanted into a subject from being destroyed by the subject's immune system which comprises: a) containing the viable cells, or tissue comprising the viable cells, prior to transplantation within a device comprising a semipermeable membrane; and b) treating the subject with a substance which inhibits an immune-system costimulation event in an amount effective to inhibit the subject's immune system from responding to said contained cells or tissue. In one embodiment, the substance which inhibits an immune-system costimulation event is CTLA4. Also provided by this invention is a method of treating diabetes in a subject which comprises: a) containing viable insulin-producing cells, or tissue comprising such cells, within a device comprising a semipermeable membrane; b) transplanting an effective amount of such contained viable insulin-producing cells into the subject; and c) treating the subject with an effective amount of a substance which inhibits an immune-system costimulation event.
    • 本发明提供一种抑制移植到受试者中的活细胞被受试者的免疫系统破坏的方法,该方法包括:a)在包含半透膜的装置内移植前含有活细胞或包含活细胞的组织; 和b)用抑制免疫系统共刺激事件的物质以有效抑制受试者的免疫系统对所述包含的细胞或组织的反应的物质治疗受试者。 在一个实施方案中,抑制免疫系统共刺激事件的物质是CTLA4。 本发明还提供了一种治疗受试者的糖尿病的方法,其包括:a)在包含半透膜的装置内含有存活的产生胰岛素的细胞或包含此类细胞的组织; b)将有效量的这种含有活体胰岛素的细胞移植到受试者中; 和c)用有效量的抑制免疫系统共刺激事件的物质治疗受试者。