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    • 4. 发明授权
    • Vaccin thérapeutique ciblé contre la P-glycoprotéine 170 pour inhiber la resistance multidrogues dans le traitement des cancers
    • Vaccinthérapeutiquecontre la P-glycoprotéine170 pour inhibiter la resistance multidrogues dans le traitement des cancers
    • EP2316478B1
    • 2017-04-26
    • EP10185331.5
    • 2004-07-25
    • AC Immune S.A.
    • Tosi, P. F.Madoulet, ClaudieNicolau, ClaudeHickman, David T.
    • A61K39/00A61K39/385A61P35/00
    • A61K39/0011A61K9/127A61K39/00A61K39/0005A61K47/646A61K48/00A61K2039/55505A61K2039/55555A61K2039/6018C07K16/30C12N5/06G01N33/574
    • Immunogenic composition (A) comprising a vehicle and as antigenic structure, a conjugate (I) of at least one peptide (Ia) derived from extracellular loop 1 of protein P-170, where each (Ia) is associated with several molecules (Ib) of fatty acid of chain length 12-24C is new. Immunogenic composition (A) comprising a vehicle and as antigenic structure, a conjugate (I) of at least one peptide (Ia) derived from extracellular loop 1 of protein P-170, where each (Ia) is associated with several molecules (Ib) of fatty acid of chain length 12-24C is new. (I) displays at least part of the conformation of the loop for inducing anti-P-107 antibodies (Ab) or for causing reversal of multidrug resistance in cancer patients. ACTIVITY : Cytostatic. The tetrapalmitoylated peptide Lys-Gly-Gly-Asn-Met-Thr-Asp-Ser-Phe-Thr-Lys-Ala-Glu-Ala-Ser-Ile-Leu-Pro-Ser-Ile-Thr-Asn-Gln-Gly-Pro-Asn-Ser-Thr-Leu-Ile-Ile-Ser-Asn-Ser-Ser-Leu-(Glu) 3-Gly-Lys-Lys-NH 2 was formulated in liposomes (mole ratio peptide:lipids 1:250) and administered three times to mice at intervals of 2 weeks, at doses of 0.2 ml. The animals were then inoculated (day 0) with1 million P388R chemoresistant cells and treated with 5.5 mg/kg doxorubicin (days 1, 10 and 21) and 2.5 mg/kg vinblastine (days 4 and 14). The mean survival time was 39 days; compare 22 days for animals injected with empty liposomes. MECHANISM OF ACTION : Vaccine; inhibtion of P-170 which is responsible for expulsion of chemotherapeutic agents from cells.
    • 包含载体和作为抗原结构的免疫原性组合物(A),源自蛋白质P-170的细胞外环1的至少一种肽(Ia)的缀合物(I),其中每个(Ia)与几个分子(Ib) 链长12-24C的脂肪酸是新的。 包含载体和作为抗原结构的免疫原性组合物(A),源自蛋白质P-170的细胞外环1的至少一种肽(Ia)的缀合物(I),其中每个(Ia)与几个分子(Ib) 链长12-24C的脂肪酸是新的。 (I)显示用于诱导抗P-107抗体(Ab)或用于引起癌症患者中多药物抗性逆转的环的构象的至少一部分。 活动:细胞生长抑制。 四棕榈酰化肽Lys-Gly-Gly-Asn-Met-Thr-Asp-Ser-Phe-Thr-Lys-Ala-Glu-Ala-Ser-Ile-Leu-Pro- Ser-Ile-Thr-Asn-Gln-Gly 在脂质体中配制Pro-Asn-Ser-Thr-Leu-Ile-Ile-Ser-Asn-Ser-Ser-Leu-(Glu)3 -Gly-Lys-Lys-NH 2(摩尔比肽:脂质1: 250),并以0.2ml的剂量以2周的间隔对小鼠施用三次。 然后将动物接种(第0天)与100万P388R化学耐药细胞并用5.5mg / kg多柔比星(第1,10和21天)和2.5mg / kg长春碱(第4和14天)处理。 平均生存时间为39天; 比较注射空脂质体的动物22天。 作用机制:疫苗; 抑制负责将化疗剂从细胞中排出的P-170。