COMPOSITIONS AND METHODS USING MODIFIED SALMONELLA
    43.
    发明申请
    COMPOSITIONS AND METHODS USING MODIFIED SALMONELLA 审中-公开
    使用改性沙门氏菌的组合物和方法

    公开(公告)号:WO2015142875A1

    公开(公告)日:2015-09-24

    申请号:PCT/US2015/021002

    申请日:2015-03-17

    IPC分类号: A61K39/02 A01N63/00 C12N1/20

    摘要: An attenuated Salmonella bacterium deficient in the naturally occurring gene that encodes one or both of the TCA enzymes aconitase or isocitrate dehydrogenase induces the innate immune response of an animal to which it is administered. The bacterium, when manipulated to express a target gene from another microorganism or a cancer or tumor, also can induce the innate immune response of a vaccinated animal to the target microorganism or cancer/tumor cell. The manipulated bacterium is useful as both a component for a Salmonella vaccine and as heterologous gene delivery platform to induce immune responses against other diseases.

    摘要翻译: 编码一种或两种TCA酶乌头酸或异柠檬酸脱氢酶的天然存在的基因缺乏的减毒沙门氏菌细菌诱导其所施用的动物的先天免疫应答。 该细菌当被操作以表达来自另一种微生物或癌症或肿瘤的靶基因时也可以将接种疫苗的动物的先天免疫应答诱导至靶微生物或癌/肿瘤细胞。 被操纵的细菌可用作沙门氏菌疫苗的组分和用作诱导针对其他疾病的免疫应答的异源基因递送平台。

    A GENETIC SYSTEM FOR GENERATING CONDITIONALLY INACTIVATED OR ATTENUATED BACTERIA
    44.
    发明申请
    A GENETIC SYSTEM FOR GENERATING CONDITIONALLY INACTIVATED OR ATTENUATED BACTERIA 审中-公开
    用于产生有条件灭活或灭活细菌的遗传系统

    公开(公告)号:WO2015118541A1

    公开(公告)日:2015-08-13

    申请号:PCT/IL2015/050137

    申请日:2015-02-05

    摘要: The present invention provides a DNA molecule comprising a nucleic acid sequence including at least one pair of a first and a second differentially controlled transcription units, wherein the first transcription unit includes a first promoter operably linked to a first gene encoding a cytotoxic gene product, the second transcription unit includes a second promoter that is different from the first promoter and is operably linked to a second gene encoding a gene product neutralizing said cytotoxic gene product, at least one of said first and said second promoter is a regulated promoter responsive to a predetermined condition, and said DNA molecule is designed such that under said predetermined condition the amount of said neutralizing gene product is not sufficient to neutralize the cytotoxic effect of the cytotoxic gene product. The present invention further provides conditionally inactivated or attenuated bacteria comprising the DNA molecule of the invention, and vaccines comprising them.

    摘要翻译: 本发明提供了一种DNA分子,其包含包含至少一对第一和第二差异控制的转录单位的核酸序列,其中所述第一转录单位包括与编码细胞毒性基因产物的第一基因可操作地连接的第一启动子, 第二转录单元包括不同于第一启动子的第二启动子,并且可操作地连接到编码中和所述细胞毒性基因产物的基因产物的第二基因,所述第一和所述第二启动子中的至少一个是响应于预定的 条件,并且所述DNA分子被设计成使得在所述预定条件下,所述中和基因产物的量不足以中和细胞毒性基因产物的细胞毒性作用。 本发明还提供了包含本发明的DNA分子的条件灭活或减毒的细菌,以及包含它们的疫苗。