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    • 4. 发明申请
    • SYSTEMS AND METHODS RELATED TO DEGRADATION OF UREMIC TOXINS
    • 与尿毒素降解有关的系统和方法
    • WO2005056040A2
    • 2005-06-23
    • PCT/US2004/040580
    • 2004-12-03
    • BROWN UNIVERSITYO'LOUGHLIN, Jill, A.BRUDER, Jan, MarkusLYSAGHT, Michael, J.
    • O'LOUGHLIN, Jill, A.BRUDER, Jan, MarkusLYSAGHT, Michael, J.
    • A61K38/00
    • C12Y305/01005A61K9/4866A61K9/4891A61K38/44A61K38/50A61K38/53C12Y107/03003C12Y305/0201C12Y603/01002Y02A50/473A61K2300/00
    • The present invention generally relates to the treatment of uremic toxins in vivo using uremic toxin-treating enzymes, and/or cells capable of producing uremic toxin-treating enzymes or otherwise reacting with uremic toxins. Non-limiting examples of cases where the treatment of uremic toxins is desired include renal disease or dysfunction, gout, subjects receiving chemotherapy, or the like. In one aspect, the treatment includes an oral delivery composition able to reduce the blood concentration of one or more non-protein nitrogen compounds in vivo. The composition, in some cases, may comprise one, two, or more uremic toxin-treating enzymes, such as urease, uricase or creatininase. The oral delivery composition may be able to deliver the uremic toxin-treating enzymes, substantially undigested, to the intestines, where the enzymes can interact with uremic toxins transported to the intestines from the bloodstream. In another aspect, the treatment includes an oral delivery composition comprising a cell able to reduce the concentration of one or more uremic toxins in vivo. In some cases, the cell may be designed to overexpress one, two, or more uremic toxin-treating enzymes, such as urease, uricase or creatininase, for example, by transfecting the cell with a corresponding gene. In some embodiments, a species able to ;react with or otherwise sequester by-products of the uremic toxin-treating enzyme reactions may be included with the oral delivery composition. For example, if the by-product is ammonium, the species may be a sorbent able to adsorb ammonium, an enzyme able to react with the ammonium, or the like.
    • 本发明一般涉及使用尿毒症毒素处理酶和/或能够产生尿毒症毒素治疗酶或以其它方式与尿毒症毒素反应的细胞体内尿毒症毒素的治疗。 需要治疗尿毒症毒素的情况的非限制性实例包括肾脏疾病或功能障碍,痛风,接受化疗的受试者等。 一方面,该治疗包括能够降低体内一种或多种非蛋白质氮化合物的血液浓度的口服递送组合物。 在一些情况下,组合物可以包含一种,两种或更多种尿毒症毒素治疗酶,例如脲酶,尿酸酶或肌酸酐酶。 口服递送组合物可以能够将基本上未消化的尿毒症毒素处理酶递送到肠道,其中酶可以与从血液输送到肠道的尿毒症毒素相互作用。 在另一方面,治疗包括口服递送组合物,其包含能够降低体内一种或多种尿毒症毒素浓度的细胞。 在一些情况下,细胞可被设计为过表达一种,两种或更多种尿毒症毒素治疗酶,例如脲酶,尿酸酶或肌酸酐酶,例如通过用相应的基因转染细胞。 在一些实施方案中,能够与尿毒症毒素处理酶反应的副产物反应或以其它方式螯合的物质可以包含在口服递送组合物中。 例如,如果副产物是铵,则该物质可以是能够吸附铵的吸附剂,能够与铵反应的酶等。
    • 8. 发明申请
    • SYSTEMS AND METHODS RELATED TO DEGRADATION OF UREMIC TOXINS
    • 与尿毒素降解有关的系统和方法
    • WO2005056040A3
    • 2005-11-03
    • PCT/US2004040580
    • 2004-12-03
    • UNIV BROWNO'LOUGHLIN JILL ABRUDER JAN MARKUSLYSAGHT MICHAEL J
    • O'LOUGHLIN JILL ABRUDER JAN MARKUSLYSAGHT MICHAEL J
    • A61K35/66A61K35/74A61K38/43A61K38/44A61K38/50A61P19/06
    • C12Y305/01005A61K9/4866A61K9/4891A61K38/44A61K38/50A61K38/53C12Y107/03003C12Y305/0201C12Y603/01002A61K2300/00
    • The present invention generally relates to the treatment of uremic toxins in vivo using uremic toxin-treating enzymes, and/or cells capable of producing uremic toxin-treating enzymes or otherwise reacting with uremic toxins. Non-limiting examples of cases where the treatment of uremic toxins is desired include renal disease or dysfunction, gout, subjects receiving chemotherapy, or the like. In one aspect, the treatment includes an oral delivery composition able to reduce the blood concentration of one or more non-protein nitrogen compounds in vivo. The composition, in some cases, may comprise one, two, or more uremic toxin-treating enzymes, such as urease, uricase or creatininase. In another aspect, the treatment includes an oral delivery composition comprising a cell able to reduce the concentration of one or more uremic toxins in vivo. In some cases, the cell may be designed to overexpress one, two, or more uremic toxin-treating enzymes, such as urease, uricase or creatininase, for example, by transfecting the cell with a corresponding gene.
    • 本发明一般涉及使用尿毒症毒素处理酶和/或能够产生尿毒症毒素治疗酶或以其它方式与尿毒症毒素反应的细胞体内尿毒症毒素的治疗。 需要治疗尿毒症毒素的情况的非限制性实例包括肾脏疾病或功能障碍,痛风,接受化疗的受试者等。 一方面,该治疗包括能够降低体内一种或多种非蛋白质氮化合物的血液浓度的口服递送组合物。 在一些情况下,组合物可以包含一种,两种或更多种尿毒症毒素治疗酶,例如脲酶,尿酸酶或肌酸酐酶。 在另一方面,治疗包括口服递送组合物,其包含能够降低体内一种或多种尿毒症毒素浓度的细胞。 在一些情况下,细胞可被设计为过表达一种,两种或更多种尿毒症毒素治疗酶,例如脲酶,尿酸酶或肌酸酐酶,例如通过用相应的基因转染细胞。