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    • 61. 发明申请
    • CERTAIN IMPROVED COMBINATION BACTERIOLYTIC THERAPY FOR THE TREATMENT OF TUMORS
    • 某些改进的联合用于治疗肿瘤的细菌疗法治疗
    • WO2005039491A3
    • 2005-06-23
    • PCT/US2004034624
    • 2004-10-21
    • UNIV JOHNS HOPKINSDANG LONGBETTEGOWDA CHETANKINZLER KENNETH WVOGELSTEIN BERT
    • DANG LONGBETTEGOWDA CHETANKINZLER KENNETH WVOGELSTEIN BERT
    • A01N63/00A61K20060101
    • A61K35/742A61K31/195A61K31/4045A61K38/06A61K2300/00
    • Current approaches for treating cancer are limited, in part, by the inability of drugs to affect the poorly vascularized regions of tumors. We have found that spores of anaerobic bacteria in combination with agents which interact with microtubules can cause the destruction of both the vascular and avascular compartments of tumors. Two classes of microtubule inhibitors were found to exert markedly different effects. Some agents that inhibited microtubule synthesis such as HTI-286 and vinorelbine, caused rapid, massive hemorrhagic necrosis when used in combination with spores. In contrast, agents that stabilized microtubules, such as the taxanes docetaxel and MAC-321, resulted in slow tumor regressions that killed most neoplastic cells. Remaining cells in the poorly perfused regions of tumors could be eradicated by sporulated bacteria Mechanistic studies showed that the microtubule destabilizers, but not the microtubule stabilizers, radically reduced blood flow to tumors, thereby enlarging the hypoxic niche in which spores could germinate. A single intravenous injection of spores plus selected microtubule-interacting agents was able to cause regressions of several tumors in the absence of excessive toxicity.
    • 目前用于治疗癌症的方法部分地由于药物不能影响肿瘤血管化程度差的区域而受到限制。 我们发现厌氧菌的孢子与微管相互作用的药物联合使用会导致肿瘤血管和血管腔的破坏。 发现两类微管抑制剂发挥显着不同的作用。 一些抑制微管合成的药物如HTI-286和长春瑞滨,当与孢子结合使用时会引起快速,大量的出血性坏死。 相反,稳定微管的药物,如紫杉类多西他赛和MAC-321,导致缓慢的肿瘤消退,从而杀死大多数肿瘤细胞。 机体研究表明,微管去稳定剂,但不是微管稳定剂,从根本上减少了血液流向肿瘤,从而扩大了孢子可能发芽的低氧生态位。 单次静脉注射孢子加选定的微管相互作用剂能够在没有过度毒性的情况下引起几种肿瘤的消退。
    • 62. 发明申请
    • IMPROVED COMBINATION BACTERIOLYTIC THERAPY FOR THE TREATMENT OF TUMORS
    • 改进的联合用于治疗肿瘤的细菌疗法
    • WO2005039492A9
    • 2005-06-02
    • PCT/US2004034625
    • 2004-10-21
    • UNIV JOHNS HOPKINSDANG LONGBETTEGOWDA CHETANKINZLER KENNETH WVOGELSTEIN BERT
    • DANG LONGBETTEGOWDA CHETANKINZLER KENNETH WVOGELSTEIN BERT
    • A01N63/00A61K20060101A61K
    • A61K35/742A61K31/337A61K31/427A61K45/06Y10S435/842A61K2300/00
    • Current approaches for treating cancer are limited, in part, by the inability of drugs to affect the poorly vascularized regions of tumors. We have found that spores of anaerobic bacteria in combination with agents which interact with microtubules can cause the destruction of both the vascular and avascular compartments of tumors. Two classes of microtubule inhibitors were found to exert markedly different effects. Some agents that inhibited microtubule synthesis, such as vinorelbine, caused rapid, massive hemorrhagic necrosis when used in combination with spores. In contrast, agents that stabilized microtubules, such as the taxane docetaxel, resulted in slow tumor regressions that killed most neoplastic cells. Remaining cells in the poorly perfused regions of tumors could be eradicated by sponzlated bacteria. Mechanistic studies showed that the microtubule destabilizers, but not the microtubule stabilizers, radically reduced blood flow to tumors, thereby enlarging the hypoxic niche in which spores could germinate. A single intravenous injection of spores plus selected microtubule-interacting agents was able to cause regressions of several tumors in the absence of excessive toxicity.
    • 目前用于治疗癌症的方法部分地由于药物不能影响肿瘤血管化程度差的区域而受到限制。 我们发现厌氧菌的孢子与微管相互作用的药物联合使用会导致肿瘤血管和血管腔的破坏。 发现两类微管抑制剂发挥显着不同的作用。 一些抑制微管合成的药物,如长春瑞滨,当与孢子结合使用时会引起快速,大量的出血性坏死。 相反,稳定微管的药物,如紫杉类多西紫杉醇,则导致缓慢的肿瘤消退,从而杀死大多数肿瘤细胞。 肿瘤灌注不足区域的剩余细胞可以被脊椎化细菌消灭。 机理研究表明,微管去稳定剂,但不是微管稳定剂,从根本上减少了血液流向肿瘤,从而扩大了孢子可能发芽的缺氧生态位。 单次静脉注射孢子加选定的微管相互作用剂能够在没有过度毒性的情况下引起几种肿瘤的消退。
    • 66. 发明申请
    • C-MYC IS ACTIVATED BY BETA-CATENIN AND TCF-4
    • C-MYC是由卡培他滨和TCF-4激活的
    • WO0011195A9
    • 2002-08-22
    • PCT/US9918774
    • 1999-08-20
    • UNIV JOHNS HOPKINS MEDHE TONG-CHUANVOGELSTEIN BERTKINZLER KENNETH W
    • HE TONG-CHUANVOGELSTEIN BERTKINZLER KENNETH W
    • C12N15/09A61K31/711A61K38/00A61K45/00A61K48/00A61P35/00C07K14/47C12N15/12C12Q1/02C12Q1/68G01N33/15G01N33/50C12N15/63C07K14/27
    • C07K14/47A61K38/00A61K48/00C07K14/4705C12Q1/6897
    • The APC tumor suppressor protein binds to beta -catenin, a protein recently shown to interact with Tcf/Lef transcription factors. Here, the gene encoding a Tcf family member that is expressed in colonic epithelium (hTcf-4) was cloned and characterized. hTcf-4 transactivates transcription only when associated with beta -catenin. Nuclei of APC colon carcinoma cells were found to contain a stable beta -catenin-hTCF-4 complex that was constitutively active, as measured by transcription of a Tcf reporter gene. Reintroduction of APC removed beta -catenin from hTcf4 and abrogated the transcriptional transactivation. Constitutive transcription of TCF target genes, caused by loss of APC function, may be a crucial event in the early transformation of colonic epithelium. It is also shown here that the products of mutant APC genes found in colorectal tumors are defective in regulating beta -catenin/Tcf-4 transcriptional activation. Furthermore, colorectal tumors with intact APC genes were shown to contain subtle activating mutations of beta -catenin that altered functionally significant phosphorylation sites. These results indicate that regulation of beta -catenin is critical to APC's tumor suppressive effect and that this regulation can be circumvented by mutations in either APC or beta -catenin.
    • APC肿瘤抑制蛋白结合β-连环蛋白,最近显示出与Tcf / Lef转录因子相互作用的蛋白质。 这里,克隆并表征编码在结肠上皮(hTcf-4)中表达的Tcf家族成员的基因。 hTcf-4仅在与β-连环蛋白相关时才转录转录。 发现APC < - / - >结肠癌细胞的核含有一个稳定的β-连环蛋白-hTCF-4复合物,其通过Tcf报告基因的转录测量而具有组成型活性。 重新引入APC从hTcf4中除去β-连环蛋白,并废除转录反式激活。 由APC功能丧失引起的TCF靶基因的组成转录可能是结肠上皮早期转化的关键事件。 这里还显示,在结肠直肠肿瘤中发现的突变APC基因的产物在调节β-连环蛋白/ Tcf-4转录激活中是缺陷的。 此外,具有完整APC基因的结肠直肠肿瘤显示含有改变功能显着磷酸化位点的β-连环蛋白的微妙活化突变。 这些结果表明,β-连环蛋白的调节对于APC的肿瘤抑制作用至关重要,并且该调节可以通过APC或β-连环蛋白的突变来规避。