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    • 105. 发明申请
    • DNA COMPOSITION FOR ELICITING AN IMMUNE RESPONSE AGAINST TUMOR-ASSOCIATED MACROPHAGES
    • 用于激发对肿瘤相关巨噬细胞的免疫应答的DNA组合物
    • WO2008054612A2
    • 2008-05-08
    • PCT/US2007021414
    • 2007-10-05
    • SCRIPPS RESEARCH INSTREISFELD RALPH AXIANG RONGLUO YUNPING
    • REISFELD RALPH AXIANG RONGLUO YUNPING
    • A61K48/00
    • C12N9/6472A61K39/00A61K39/0011A61K2039/521A61K2039/5254A61K2039/53A61K2039/542A61K2039/645C12N9/50
    • A DNA composition useful for eliciting an immune response against tumor-associated macrophages comprises a DNA construct that encodes for a cysteine endopeptidase (e.g., legumain) or a polypeptide comprising at least one immunogenic fragment thereof that is overexpressed in tumor-associated cells such as tumor-associated macrophages, or an immunogenic fragment thereof that is expressible in immune cells, and which is incorporated in a pharmaceutically acceptable carrier. In preferred embodiments, the composition encodes a polypeptide comprising a plurality of immunogenic fragments of a tumor associated cysteine endopeptidase (e.g., legumain) joined together serially such that each fragment is connected to at least one other fragment by a linker peptide such as AIaAIaAIa or AlaAlaTyr. In one preferred embodiment, the composition also includes a DNA construct that encodes an immune effector protein, such as a cytokine. The DNA composition of the invention can be used alone or in combination with a chemotherapeutic agent to treat diseases such as tumors and tumor metastases.
    • 用于引发针对肿瘤相关巨噬细胞的免疫应答的DNA组合物包含编码半胱氨酸内肽酶(例如legumain)的DNA构建体或包含至少一个在肿瘤相关细胞如肿瘤中过表达的免疫原性片段的多肽 相关巨噬细胞或其免疫原性片段,其可在免疫细胞中表达,并掺入药学上可接受的载体中。 在优选的实施方案中,所述组合物编码多肽,所述多肽包含串联连接在一起的多个肿瘤相关半胱氨酸内肽酶(例如legumain)的免疫原性片段,使得每个片段通过连接肽如AlaAlaAla或AlaAlaTyr连接至少一个其他片段 。 在一个优选的实施方案中,组合物还包含编码免疫效应蛋白例如细胞因子的DNA构建体。 本发明的DNA组合物可以单独使用或与化学治疗剂组合使用以治疗诸如肿瘤和肿瘤转移的疾病。
    • 107. 发明申请
    • A NOVEL VIRULENCE DETERMINANT WITHIN THE E2 STRUCTURAL GLYCOPROTEIN OF CLASSICAL SWINE FEVER VIRUS
    • 经典蛇型病毒的E2结构型GLYCOPROTEIN中的新型毒力测定
    • WO2007143442A3
    • 2008-03-13
    • PCT/US2007069852
    • 2007-05-29
    • US AGRICULTUREBORCA MANUEL VRISATTI GUILLERMO R
    • BORCA MANUEL VRISATTI GUILLERMO R
    • A61K39/12A61K39/00C12N15/09C12Q1/68
    • A61K39/12A61K2039/5254C07K14/005C12N7/00C12N2770/24322C12N2770/24334C12N2770/24361
    • Classical Swine Fever Virus (CSFV) E2 glycoprotein is a major inducer of neutralizing antibodies and protective immunity in swine. E2 mediates virus adsorption to the target cell, and harbors genetic determinants associated with virus virulence. CSFV E2 also contains between residues 829 and 837 a discrete epitope (TAVSPTTLR) recognized by monoclonal antibody (mAb) WH3O3, used to differentiate CSFV from related Pestiviruses Bovine Viral Diarrhea Virus (BVDV) and Border Disease Virus (BDV). In this report, a CSFV infectious clone of the virulent Brescia isolate (BICv) was used to progressively mutate the mAb WH3O3 epitope of CSFV E2 to the homologous amino acid sequence of BVDV strain NADL E2 (TSFNMDTLA). While the resulting virus mutants TIv (TSFSPTTLR), T2v (TSFNPTTLR), T3v (TSFNMTTLR) demonstrated in vitro growth characteristics similar to those of parental BICv, mutants T4v (TSFNMDTLR) and T5v (TSFNMDTLA) exhibited a 10-fold decrease in virus yield and a significant decrease in plaque size relative to parental BICv. Immunohistochemical reactivity with WH303 was lost only in T3v, T4v and T5v.
    • 经典猪瘟病毒(CSFV)E2糖蛋白是猪的中和抗体和保护性免疫的主要诱导剂。 E2介导病毒对靶细胞的吸附,并且具有与病毒毒力相关的遗传决定簇。 CSFV E2还包含残基829和837之间由单克隆抗体(mAb)WH3O3识别的离散表位(TAVSPTTLR),用于区分来自相关的病毒性腹泻病毒(BVDV)和边界病病毒(BDV)的CSFV。 在本报告中,使用强毒性布雷西亚分离株(BICv)的CSFV感染性克隆逐渐将CSFV E2的mAb WH3O3表位突变为BVDV毒株NADL E2(TSFNMDTLA)的同源氨基酸序列。 尽管得到的病毒突变体TIv(TSFSPTTLR),T2v(TSFNPTTLR),T3v(TSFNMTLTLR)证明体外生长特征与亲代BICv相似,但突变体T4v(TSFNMDTLR)和T5v(TSFNMDTLA)的病毒产量降低了10倍 相对于亲本BICv,斑块大小明显减少。 仅在T3v,T4v和T5v中,与WH303的免疫组织化学反应丧失。