MEANS AND METHODS FOR SHRNA MEDIATED CONDITIONAL KNOCKDOWN OF GENES
    84.
    发明授权
    MEANS AND METHODS FOR SHRNA MEDIATED CONDITIONAL KNOCKDOWN OF GENES 有权
    手段与方法shRNA的介导的条件击倒基因的

    公开(公告)号:EP2201116B1

    公开(公告)日:2012-08-08

    申请号:EP08802303.1

    申请日:2008-09-17

    摘要: The present invention relates to a combination of DNA segments comprising: (a) a first segment comprising in 5' to 3' or 3' to 5' order: (aa) a promoter; (ab) a first DNA sequence comprising: (i) a DNA sequence giving rise upon transcription to the sense strand of an shRNA molecule; (ii) a transcriptional stop element which is flanked by a first type of recombinase recognition sequences; and (iii) a DNA sequence giving rise upon transcription to the antisense strand of an shRNA molecule; (b) a second segment comprising in 5' to 3' or 3' to 5' order: (ba) a promoter; (bb) a second DNA sequence comprising: (i) a DNA sequence giving rise upon transcription to the sense strand of an shRNA molecule; (ii) a transcriptional stop element which is flanked by a second type of recombinase recognition sequences; and (iii) a DNA sequence giving rise upon transcription to the antisense strand of an shRNA molecule; wherein (i) said first type of recombinase recognition sequences are recognized and recombined by a recombinase but not recombined with said second type of recombinase recognition sequences; (ii) said second type of recombinase recognition sequences are recognized and recombined by the recombinase of (i) but not recombined with said first type of recombinase recognition sequences; and (iii) said DNA sequence of (ab) and (bb) is expressed under the control of said promoters of (aa) and (ba) upon removal of said transcriptional stop elements of (ab) and (bb) by the activity of a recombinase, resulting in transcription of said shRNA molecule in a cell. Further, the invention relates to a genetically engineered non-human animal and a method to produce said transgenic non-human animal. Also, the invention relates to a cell genetically engineered with the DNA molecule of the invention and a method of simultaneously knocking down two genes in a cell. Furthermore, envisaged is a method of identifying a combination of two target genes as a potential drug target and the use of the DNA molecule of the invention for the preparation of a composition for gene therapy.

    SEMICONDUCTOR BIOSENSORS
    86.
    发明公开
    SEMICONDUCTOR BIOSENSORS 审中-公开
    半导体生物传感器

    公开(公告)号:EP2440651A2

    公开(公告)日:2012-04-18

    申请号:EP10725125.8

    申请日:2010-06-10

    IPC分类号: C12M1/34 G01N27/414

    CPC分类号: G01T1/02 G01N33/48728

    摘要: The present application relates to semiconductor devices, in particular to a device for monitoring a cell signal such as an electrical signal produced by living cells in response to external stimulation, optionally in real time, comprising (a) at least one discrete area comprising a high electron mobility transistor (HEMT); and (b) non-excitable cells attached to said HEMT (HEMT element) for example, fibroblasts, HEK, CHO cell lines, keratinocytes, etc. Preferably, the HEMT is an AlGaN/GaN FET. Accordingly, the device can be applied in uses and methods for monitoring a cell signal such as an electrical signal produced by living cells in response to external stimulation, optionally in real time. Likewise, the device can be applied for screening compounds that reverse, protect from and/or shield cells from external stimuli which cause damage to cells. Also, kits comprising the device are disclosed.