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    • 5. 发明申请
    • METHOD AND REAGENT KIT FOR EVALUATION OF MULTIDRUG-RESISTANCE ACTIVITY
    • 用于评估多重抗性活性的方法和试剂盒
    • WO2005116648A3
    • 2006-03-30
    • PCT/IB2005051707
    • 2005-05-25
    • SOLVO BIOTECHNOLOGY INCSCHWAB RICHARDPETAK ISTVANSARKADI BALAZSKOPPER LASZLOKERI GYOERGYPAP AKOSSZAKACS GERGELYHOMOLYA LASZLOJAKAB FERENCMOLDVAY JUDITFEHER ARNOLD
    • SCHWAB RICHARDPETAK ISTVANSARKADI BALAZSKOPPER LASZLOKERI GYOERGYPAP AKOSSZAKACS GERGELYHOMOLYA LASZLOJAKAB FERENCMOLDVAY JUDITFEHER ARNOLD
    • G01N33/50G01N33/68
    • G01N33/6872G01N2500/10
    • The invention provides an in vitro diagnostic method for detecting multi-drug resistance in a biological specimen comprising a heterogeneous population of discrete cells, said method comprising the steps of contacting a first portion of the biological specimen with MDR substrate derivative and a viability reagent; contacting a second portion of the biological specimen with a general inhibitor of transport protein-mediated cell efflux, the MDR substrate derivative, and the viability reagent; measuring the signal generated by the MDR substrate within the viable cells of said second portion; defining an MDR substrate signal intensity range based on data measured above; determining a first rate of MDR substrate accumulation within a population of cells of said first portion of the biological specimen; determining a second rate of MDR substrate accumulation within a population of cells of said second portion of the biological specimen; and calculating the difference in said first and second rates of MDR substrate accumulation, wherein data showing a reduced MDR substrate accumulation in said populations of cells between said first portion and said second portion is indicative of the presence of multi-drug resistance in said biological specimen.
    • 本发明提供一种体外诊断方法,用于检测包含离散细胞的异质群的生物样本中的多重耐药性,所述方法包括使生物样本的第一部分与MDR底物衍生物和活力试剂接触的步骤; 使生物样品的第二部分与一般的蛋白质介导的细胞外流抑制剂,MDR底物衍生物和活力试剂接触; 测量由所述第二部分的活细胞内的MDR基底产生的信号; 基于上面测量的数据定义MDR衬底信号强度范围; 确定生物样本的所述第一部分的细胞群体内的MDR底物积累的第一速率; 确定生物样本的所述第二部分的细胞群体内的MDR底物积累的第二速率; 并计算所述第一和第二速率的MDR底物积累的差异,其中显示在所述第一部分和所述第二部分之间的所述细胞群体中减少的MDR底物积累的数据指示所述生物样本中存在多重耐药性 。
    • 6. 发明申请
    • SCREENING SYSTEM BASED ON EXPRESSION OF ABCG2 HALF TRANSPORTER PROTEIN
    • 基于ABCG2 HALF运输蛋白表达的筛选系统
    • WO02071073A3
    • 2003-04-03
    • PCT/HU0200015
    • 2002-03-04
    • SOLVO BIOTECHNOLOGY INCOEZVEGY CSILLASZAKACS GERGELYVARADI ANDRASNAGY ZOLTAN
    • OEZVEGY CSILLASZAKACS GERGELYVARADI ANDRASNAGY ZOLTAN
    • G01N33/68C12N5/00G01N33/50G01N33/574
    • G01N33/6872G01N2333/705
    • The overexpression of an ABC half-transporter, ABCG2 (MXR/BCRP) transporter causes multidrug resistance in tumors. The present invention is based on the in vitro expression of the ABCG2 protein in insect cells as an expression system free of other, closely related, functional ABC transporters. In particular, the invention is related to a method for testing drugs for their effect on ABCG2 protein, method for the expression of active ABCG2, isolated ABCG2 homooligomers, preferably homodimers and uses thereof for testing drugs. The invention is further related to cell membrane preparations and cells, preferably insect cells comprising active ABCG2 and reagent kits for testing drugs for their effect on an ABCG2 half transporter protein. The invention is also related to a method for identifying ABCG2 activity in a biological sample, utilizing its substrate/inhibitor specificity.
    • ABC半转运蛋白ABCG2(MXR / BCRP)转运蛋白的过度表达在肿瘤中引起多药耐药。 本发明基于ABCG2蛋白在昆虫细胞中的体外表达,作为不含其他密切相关的功能性ABC转运蛋白的表达系统。 特别地,本发明涉及一种用于测试药物对ABCG2蛋白的影响的方法,用于表达活性ABCG2的方法,分离的ABCG2同源二聚体,优选同二聚体及其用于测试药物的用途。 本发明还涉及细胞膜制剂和细胞,优选包含活性ABCG2的昆虫细胞和用于测试药物对ABCG2半转运蛋白的影响的试剂盒。 本发明还涉及利用其底物/抑制剂特异性鉴定生物样品中ABCG2活性的方法。
    • 7. 发明申请
    • SCREENING SYSTEM BASED ON EXPRESSION OF ABCG2 HALF TRANSPORTER PROTEIN
    • 基于ABCG2 HALF运输蛋白表达的筛选系统
    • WO2002071073A2
    • 2002-09-12
    • PCT/HU2002/000015
    • 2002-03-04
    • SOLVO BIOTECHNOLOGY INC.ÖZVEGY, CsillaSZAKÁCS, GergelyVÁRADI, AndrásNAGY, Zoltán
    • ÖZVEGY, CsillaSZAKÁCS, GergelyVÁRADI, AndrásNAGY, Zoltán
    • G01N33/68
    • G01N33/6872G01N2333/705
    • The overexpression of an ABC half-transporter, ABCG2 (MXR/BCRP) transporter causes multidrug resistance in tumors. The present invention is based on the in vitro expression of the ABCG2 protein in insect cells as an expression system free of other, closely related, functional ABC transporters. In particular, the invention is related to a method for testing drugs for their effect on ABCG2 protein, method for the expression of active ABCG2, isolated ABCG2 homooligomers, preferably homodimers and uses thereof for testing drugs. The invention is further related to cell membrane preparations and cells, preferably insect cells comprising active ABCG2 and reagent kits for testing drugs for their effect on an ABCG2 half transporter protein. The invention is also related to a method for identifying ABCG2 activity in a biological sample, utilizing its substrate/inhibitor specificity.
    • ABC半转运蛋白ABCG2(MXR / BCRP)转运蛋白的过度表达在肿瘤中引起多药耐药。 本发明基于ABCG2蛋白在昆虫细胞中的体外表达,作为不含其他密切相关的功能性ABC转运蛋白的表达系统。 特别地,本发明涉及一种用于测试药物对ABCG2蛋白的影响的方法,用于表达活性ABCG2的方法,分离的ABCG2同源二聚体,优选同二聚体及其用于测试药物的用途。 本发明还涉及细胞膜制剂和细胞,优选包含活性ABCG2的昆虫细胞和用于测试药物对ABCG2半转运蛋白的影响的试剂盒。 本发明还涉及利用其底物/抑制剂特异性鉴定生物样品中ABCG2活性的方法。