DNA expression vectors and methods of use
    5.
    发明授权
    DNA expression vectors and methods of use 有权
    DNA表达载体和使用方法

    公开(公告)号:US07795017B2

    公开(公告)日:2010-09-14

    申请号:US11009063

    申请日:2004-12-09

    IPC分类号: C07H21/04 C12N15/63

    摘要: The present invention relates to novel plasmid constructs useful for the delivery of DNA vaccines. The present invention provides novel plasmids having a transcription cassette capable of directing the expression of a vaccine nucleic acid insert encoding immunogens derived from any pathogen, including fungi, bacteria and viruses. The present invention, however, is particularly useful for inducing in a patient an immune response against pathogenic viruses such as HIV, measles or influenza. Immunodeficiency virus vaccine inserts of the present invention express non-infectious HIV virus-like particles (VLP) bearing multiple viral epitopes. VLPs allow presentation of the epitopes to multiple histocompatability types, thereby reducing the possibility of the targeted virus escaping the immune response. Also described are methods for immunizing a patient by delivery of a novel plasmid of the present invention to the patient for expression of the vaccine insert therein. Optionally, the immunization protocol may include a booster vaccination that may be a live vector vaccine such as a recombinant pox virus or modified vaccinia Arbora vector. The booster live vaccine vector includes a transcription cassette expressing the same vaccine insert as the primary immunizing vector.

    摘要翻译: 本发明涉及用于递送DNA疫苗的新型质粒构建体。 本发明提供具有转录盒的新颖质粒,其能够引导编码来自任何病原体(包括真菌,细菌和病毒)的免疫原的疫苗核酸插入物的表达。 然而,本发明特别可用于在患者中诱导针对病毒性病毒如HIV,麻疹或流行性感冒的免疫应答。 本发明的免疫缺陷病毒疫苗插入物表达具有多个病毒表位的非传染性HIV病毒样颗粒(VLP)。 VLP允许将表位呈现给多种组织相容性类型,从而降低靶向病毒逃避免疫应答的可能性。 还描述了通过将本发明的新型质粒递送给患者以在其中表达疫苗插入物来免疫患者的方法。 任选地,免疫方案可以包括加强免疫接种,其可以是活载体疫苗,例如重组痘病毒或修饰的牛痘Arbora载体。 增效活疫苗载体包括表达与初次免疫载体相同疫苗插入片段的转录盒。