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    • 4. 发明申请
    • BUTYRYLCHOLINESTERASE VARIANTS THAT ALTER THE ACTIVITY OF CHEMOTHERAPEUTIC AGENTS
    • 化学治疗剂的活性的丁基胆碱酯酶变体
    • WO2004050041A2
    • 2004-06-17
    • PCT/US2003/038684
    • 2003-12-04
    • APPLIED MOLECULAR EVOLUTION, INC.WATKINS, Jeffry, D.PANCOOK, James, D.
    • WATKINS, Jeffry, D.PANCOOK, James, D.
    • A61K
    • C12N9/18A61K38/00
    • The invention provides a butyrylchinesterase variant having the amino acid sequence selected from SEQ ID NOS: 4, 6, 8, 10, 12, 14, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194 and 196,, or functional fragment thereof. In addition, the invention provides a method of converting a camptothecin derivative to a topoisomerase inhibitor by contacting the camptothecin derivative with a butyrylcholinesterase variant selected from SEQ ID NOS: 2, 4, 6, 8, 10, 12, 14, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, and 196, or functional fragment thereof, under conditions that allow conversion of a camptothecin derivative to a topoisomerase inhibitor. Further, the invention provides a method of treating cancer by administering to an individual an effective amount of a butyrylcholinesterase variant selected from SEQ ID NO: 2, 4, 6, 8, 10, 12, 14, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 184, 186, 188, 190, 192, 194, and 196, or functional fragment thereof, exhibiting increased capability to convert a camptothecin derivative to a topoisomerase inhibitor compared to butyrylcholinesterase.
    • 本发明提供具有选自SEQ ID NO:4,6,8,10,12,14,24,26,28,30,32,34,36,38,40,42,44的氨基酸序列的丁酰基切割酶变体 ,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94 ,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140,​​142,144 ,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184,186,188,190,192,194 和196 ,,或其功能片段。 此外,本发明提供了一种通过使喜树碱衍生物与选自SEQ ID NO:2,4,6,8,10,12,14,26,26,26,26,26,26,26,26,26,26,26,26,26,28,26,26,26,26,26,26,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29,29 28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70, 78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122, 128,130,132,134,136,138,140,142,144,146,148,150,152,154,156,158,160,162,164, 178,180,182,184,186,188,190,192,194和196或其功能片段,在允许将喜树碱衍生物转化为拓扑异构酶抑制剂的条件下进行。 此外,本发明提供了一种通过向个体施用有效量的丁酰胆碱酯酶变体来治疗癌症的方法,所述丁酰胆碱酯酶变体选自SEQ ID NO:2,4,6,8,10,12,14,24,26,28,30,40, 32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,80, 82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128, 132,134,136,138,140,​​142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180, 182,184,186,188,190,192,194和196或其功能片段,与丁酰胆碱酯酶相比表现出增加将喜树碱衍生物转化为拓扑异构酶抑制剂的能力。