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    • 45. 发明申请
    • AVIRULENT MICROBES AND USES THEREFOR: SALMONELLA TYPHI
    • 微生物及其用途:SALMONELLA TYPHI
    • WO1992008486A1
    • 1992-05-29
    • PCT/US1991008376
    • 1991-11-08
    • WASHINGTON UNIVERSITY
    • WASHINGTON UNIVERSITYCURTISS, Roy, IIIKELLY, Sandra, M.
    • A61K39/112
    • C12R1/42A61K39/00A61K39/0275A61K2039/522C07K14/255C12N15/01Y02A50/407Y02A50/482Y02A50/484
    • This invention provides immunogenic compositions for the immunization of a vertebrate or invertebrate comprising an avirulent derivative of S. typhi. The derivatives having a mutation of the cya and/or crp and/or cdt genes. The invention also provides immunogenic compositions for the immunization of a vertebrate and invertebrate comprising an avirulent derivative of the above type which is capable of expressing a recombinant gene derived from a pathogen of said vertebrate or invertebrate individual to produce an antigen capable of inducing an immune response against said pathogen. Other embodiments of the invention include methods of preparing immunogenic compositions from these strains, and strains useful in the preparation of the immunogenic compositions, as well as methods of stimulating the immune system to respond to an immunogenic antigen of S. typhi by administration of the immunogenic composition.
    • 本发明提供了用于免疫含脊椎动物或无脊椎动物的免疫原性组合物,其包含伤寒沙利氏菌的无毒性衍生物。 具有cya和/或crp和/或cdt基因突变的衍生物。 本发明还提供用于免疫脊椎动物和无脊椎动物的免疫原性组合物,其包含上述类型的无毒力衍生物,其能够表达源自所述脊椎动物或无脊椎动物个体的病原体的重组基因以产生能够诱导免疫应答的抗原 针对所述病原体。 本发明的其它实施方案包括从这些菌株制备免疫原性组合物的方法,以及可用于制备免疫原性组合物的菌株,以及通过施用免疫原性刺激免疫系统对伤寒沙门氏菌的免疫原性抗原作出反应的方法 组成。
    • 46. 发明申请
    • CROSS-PROTECTIVE SALMONELLA VACCINES
    • 交叉保护性沙门氏菌疫苗
    • WO1991006317A1
    • 1991-05-16
    • PCT/US1990006503
    • 1990-11-02
    • WASHINGTON UNIVERSITY
    • WASHINGTON UNIVERSITYCURTISS, Roy, IIIMUNSON, MARYANN
    • A61K39/112
    • A61K39/0275A61K2039/522Y02A50/482
    • Vaccines are provided for treatment of individuals for infections by gram negative bacteria. The vaccines are comprised of live avirulent Salmonella which are able to induce immunity to homologous and to heterologous Salmonella serotypes, and to other gram-negative enteric bacteria. The Salmonella of which the vaccine is comprised possess at least one mutation in a gene which globally regulates other genes, and which also possess a mutation in at least one other of the following type: a mutation either in a gene encoding an enzyme in a lipopolysaccharide synthesis, which results in a reversibly rough phenotype; or in a gene which regulates the synthesis of iron-regulated OMPs, such that the mutation leads to constitutive expression of these proteins. Strains useful for the production of these vaccines are also provided.
    • 提供疫苗用于治疗革兰氏阴性细菌感染的个体。 疫苗由无活力的沙门氏菌组成,能够诱导对同源和异源沙门氏菌血清型的免疫,以及其他革兰氏阴性肠细菌。 包含疫苗的沙门氏菌在全球调节其他基因的基因中具有至少一个突变,并且还具有至少另一种以下类型的突变:编码脂多糖中的酶的基因中的突变 合成,导致可逆的粗糙表型; 或在调节铁调节的OMP的合成的基因中,使得突变导致这些蛋白质的组成型表达。 还提供了可用于生产这些疫苗的菌株。
    • 48. 发明申请
    • A METHOD OF MAINTAINING A DESIRED RECOMBINANT GENE IN A GENETIC POPULATION OF CELLS
    • 维持细胞遗传群体中所需重组基因的方法
    • WO1989003427A1
    • 1989-04-20
    • PCT/US1988003496
    • 1988-10-06
    • WASHINGTON UNIVERSITY
    • WASHINGTON UNIVERSITYCURTISS Ray, III
    • C12N15/00
    • C12N9/0008A61K39/04A61K2039/523C07K14/315C07K14/35C12N15/00C12N15/68C12R1/42C12Y102/01011Y02A50/484
    • The invention encompasses methods of maintaining desired recombinant genes in a genetic population of cells expressing the recombinant gene. The methods utilize mutant cells which are characterized by a lack of a functioning native gene encoding an enzyme which is essential for cell survival, wherein this enzyme catalyses a step in the biosynthesis of an essential cell wall structural component and the presence of a first recombinant gene encoding an enzyme which is a functional replacement for the native enzyme, wherein the first recombinant gene cannot replace the defective chromosomal gene. The first recombinant gene is structurally linked to a second recombinant gene encoding a desired product. Loss of the first recombinant gene causes the cells to lyse when the cells are in an environment where a product due to the expression of the first recombinant gene is absent. The invention also encompasses methods of creating and isolating mutant cells with the above characteristics. The cells of the invention are useful for commercial production of desired products, for components of vaccines for immunizing individuals, and for release into the environment.
    • 本发明包括在表达重组基因的细胞的遗传群体中维持所需重组基因的方法。 该方法利用突变细胞,其特征在于缺乏编码细胞存活所必需的酶的功能性天然基因,其中该酶催化必需细胞壁结构组分的生物合成和第一重组基因的存在 编码作为天然酶的功能性替代物的酶,其中第一重组基因不能代替有缺陷的染色体基因。 第一重组基因在结构上与编码所需产物的第二重组基因连接。 当细胞处于不存在第一重组基因表达的产物的环境中时,第一重组基因的损失导致细胞裂解。 本发明还包括产生和分离具有上述特征的突变细胞的方法。 本发明的细胞可用于商业生产所需产品,用于免疫个体的疫苗的组分和用于释放到环境中。
    • 50. 发明申请
    • METHOD OF CELL SURFACE ACTIVATION AND INHIBITION
    • 细胞表面活化和抑制方法
    • WO1998012309A2
    • 1998-03-26
    • PCT/US1997016216
    • 1997-09-15
    • WASHINGTON UNIVERSITYGOLDBERG, Gregory, I.
    • WASHINGTON UNIVERSITY
    • C12N09/64
    • C12N9/6491C12N9/6489
    • Disclosed are methods of cell surface activation and inhibition that involve the interaction of an inhibitor of matrix metalloprotease known as TIMP-2, with the enzyme, gelatinase-A (GelA). Critical to the methods of the invention is the discovery of a unique TIMP-2 binding site on the surface of the C-terminal domain (GelA-CTD) of the enzyme, which has been determined to be Asp , but which can also include other residues in the Ge1A-CTD domain with which Asp forms a contiguous surface, namely Gly , Phe , and Tyr . Identification of this binding site provides a useful target for the screening of MMP inhibitors and for prognosis and treatment of diseases in which MMPs are implicated. Compounds which are candidate MMP inhibitors can be structured to competitively inhibit cell surface activation.
    • 公开了涉及称为TIMP-2的基质金属蛋白酶抑制剂与酶,明胶酶-A(GelA)的相互作用的细胞表面活化和抑制的方法。 本发明方法的关键在于已经确定为Asp <656>的酶的C末端结构域(GelA-CTD)的表面上发现了独特的TIMP-2结合位点,但是可以 还包括其中Asp <656>形成邻接表面的Ge1A-CTD结构域中的其他残基,即Gly 651,Phe 650和Tyr 636。 该结合位点的鉴定提供了用于筛选MMP抑制剂以及预后和治疗涉及MMP的疾病的有用靶标。 作为候选MMP抑制剂的化合物可以结构化以竞争性地抑制细胞表面活化。