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    • 24. 发明授权
    • Pathogenesis of cardiomyopathy
    • 心肌病发病机制
    • US06201168B1
    • 2001-03-13
    • US09378418
    • 1999-08-20
    • Kevin P. CampbellRamon CoralRonald CohnRoger WilliamsonMadeleine Durbeej
    • Kevin P. CampbellRamon CoralRonald CohnRoger WilliamsonMadeleine Durbeej
    • A01K67027
    • C12N15/8509A01K67/0276A01K2217/075A01K2227/105A01K2267/03A01K2267/0375A61K48/00C07K14/4707
    • Disclosed is a mouse, cells derived therefrom, and methods for using the mouse, the mouse being homozygous for a disrupted &dgr;-sarcoglycan gene, the disruption in the gene having been introduced into the mouse or an ancestor of the mouse at an embryonic stage. The disruption prevents the synthesis of functional &dgr;-sarcoglycan in cells of the mouse and results in the mouse having a reduced amount of &bgr;- and &egr;-sarcoglycan and sarcospan, and a disruption of the sarcoglycan-sarcospan complex in smooth muscle of the mouse. Also disclosed is a mouse, cells derived therefrom, and methods for using the mouse, the mouse being homozygous for a disrupted &bgr;-sarcoglycan gene, the disruption in the gene having been introduced into the mouse or an ancestor of the mouse at an embryonic stage. The disruption prevents the synthesis of functional &bgr;-sarcoglycan in cells of the mouse and results in the mouse having a reduced amount of &dgr;-and &egr;-sarcoglycan and sarcospan and &agr;-dystroglycan in smooth muscle of the mouse.
    • 公开了一种小鼠,其衍生的细胞,以及使用该小鼠的方法,该小鼠对于破坏的δ-色氨酸聚糖基因是纯合的,该基因在胚胎阶段被导入小鼠或该小鼠祖先的破坏。 这种破坏阻止了小鼠细胞中功能性δ-糖聚糖的合成,并导致小鼠β-谷氨酸和唾液酸和焦糖的量减少,并且导致小鼠平滑肌中的slegoglycan-sarcospan复合物的破坏。 还公开了一种小鼠,由其衍生的细胞,以及使用该小鼠的方法,该小鼠对于破坏的β-唾液酸聚糖基因是纯合的,该基因在胚胎阶段被导入小鼠或小鼠祖先的破坏 。 破坏阻止了小鼠细胞中功能性β-sogoglycan的合成,并导致小鼠的平滑肌中δ-和ε-唾液酸和谷氨酸和α-依托莫多糖的量减少。
    • 25. 发明授权
    • Arenavirus receptor and methods of use
    • US6083911A
    • 2000-07-04
    • US208707
    • 1998-12-10
    • Kevin P. CampbellMichael HenryHiroki YamadaRoger WilliamsonWei CaoMichael Oldstone
    • Kevin P. CampbellMichael HenryHiroki YamadaRoger WilliamsonWei CaoMichael Oldstone
    • A61K38/17A61K35/34A61K38/16
    • A61K38/177
    • Disclosed is a method for inhibiting the binding of an arenavirus to a cellular receptor. The method involves providing, in soluble form, a reagent comprising .alpha.-dystroglycan or a portion thereof, the reagent being characterized by the ability to bind to the arenavirus thereby inhibiting the binding of the arenavirus to the cellular receptor. The reagent is contacted with an arenavirus particle prior to infection of a cell by the arenavirus particle. Also disclosed are methods for treating an arenavirus infection in a patient and preventing an arenavirus infection in an individual at risk. These methods involve providing a therapeutic composition comprising .alpha.-dystroglycan or a portion thereof which is characterized by the ability to bind to arenaviruses, thereby inhibiting the binding of arenaviruses to a cellular receptor; and administering the composition to the patient or individual at risk. Arenaviruses to which the methods of the present invention apply include, without limitation, Lymphocyte Choriomeningitis Virus, Lassa fever virus, Mobala, and Oliveros. In another aspect, the disclosure relates to an embryonic stem cell line, and cells derived therefrom, which is homozygous for a disrupted dystroglycan gene, wherein the disruption prevents the synthesis of functional dystroglycan in the cells. Applications of the dystroglycan null embryonic stem cells include producing dystroglycan or a portion thereof in the cells and also for identifying portions of dystroglycan necessary for arenavirus infection. Also disclosed is a method for identifying antiviral compounds which interfere specifically with the binding of arenavirus and .alpha.-dystroglycan, comprising providing a binding assay system for the determination of binding of arenavirus and .alpha.-dystroglycan. The candidate antiviral compounds are introduced into the binding assay system and antiviral compounds which substantially inhibit binding of arenavirus to .alpha.-dystroglycan are identified.