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    • 2. 发明申请
    • HETEROFUNCTIONAL SEGMENT-POLY (ETHYLENE GLYCOL) POLYMERS AS DELIVERY VEHICLES
    • 交联聚乙烯(乙烯甘油)聚合物
    • US20110293515A1
    • 2011-12-01
    • US13144440
    • 2010-01-12
    • Ahmad SafavyJames A. BonnerDonald J. Buchsbaum
    • Ahmad SafavyJames A. BonnerDonald J. Buchsbaum
    • A61K51/06A61P35/00A61K49/00C08G69/48A61K47/48
    • C08G69/44A61B5/055A61B5/411A61K47/59A61K47/60A61K47/645C08G69/10C08G69/40
    • Heterofunctional segment-poly(ethylene glycol) polymers, conjugates of these molecules with therapeutic and/or imaging agents, and methods for their use are disclosed. The heterofunctional segment-poly(ethylene glycol) polymers are useful as drug delivery conjugates, i.e., the heterofunctional segment-poly(ethylene glycol) polymers can be covalently attached to therapeutic agents (e.g., pharmaceutically active agents) and serve as delivery vehicles for the therapeutic agents. The heterofunctional segment-poly(ethylene glycol) polymers are also useful as imaging agent conjugates, i.e. the heterofunctional segment-poly(ethylene glycol) polymers can be covalently attached to imaging agents (e.g., tracers, imaging atoms, and imaging molecules) and serve as delivery vehicles for the imaging agents. Also disclosed are methods for treating a subject by administering to the subject an effective amount of the polymers conjugated to a therapeutic agent, an imaging agent, or a mixture thereof.
    • 公开了异功能段 - 聚(乙二醇)聚合物,这些分子与治疗和/或显像剂的缀合物及其使用方法。 异源功能区段 - 聚(乙二醇)聚合物可用作药物递送缀合物,即异功能区段 - 聚(乙二醇)聚合物可以共价连接到治疗剂(例如药物活性剂)上,并用作 治疗剂。 异源功能片段 - 聚(乙二醇)聚合物也可用作显影剂缀合物,即异功能片段 - 聚(乙二醇)聚合物可以共价连接到成像剂(例如,示踪剂,成像原子和成像分子)并且用于 作为成像剂的递送载体。 还公开了通过向受试者施用有效量的与治疗剂,显像剂或其混合物缀合的聚合物来治疗受试者的方法。
    • 4. 发明授权
    • Molecular chemotherapy enhancement of radiotherapy
    • 分子化疗放疗增强
    • US06703375B2
    • 2004-03-09
    • US10304436
    • 2002-11-26
    • Donald J. BuchsbaumC. Ryan MillerG. Yancey GillespieRobert J. Garyer, Jr.
    • Donald J. BuchsbaumC. Ryan MillerG. Yancey GillespieRobert J. Garyer, Jr.
    • A61K4800
    • C12N15/86A61K38/45A61K38/50A61K41/00A61K48/00C12N2710/10343C12N2810/859Y02A50/473
    • The present invention provides a new approach for cancer treatment by utilizing gene therapy combined with radiation therapy to enhance cytotoxicity in malignant cells. Specifically, the present invention demonstrates that molecular chemotherapy with the cytosine deaminase gene and 5-fluorocytosine is an effective radiosensitizing strategy which may lead to substantial improvement in tumor control, with less normal tissue toxicity than conventional systemic administration of 5-fluorouracil, that would translate into improved cure rates and better survival. A noninvasive method is described for continuous in vivo monitoring of 5-fluorouracil production via magnetic resonance spectroscopy An adenovirus encoding cytosine deaminase gene which selectively replicates in tumor cells with a defective p53 pathway was constructed. Also provided is an adenovirus which encodes a fusion protein of cytosine deaminase and uracil phosphoribosyltransferase.
    • 本发明通过利用与放射治疗相结合的基因治疗来增强恶性细胞中的细胞毒性提供了一种新的癌症治疗方法。 具体来说,本发明表明,具有胞嘧啶脱氨酶基因和5-氟胞嘧啶的分子化学疗法是一种有效的放射增敏策略,其可以导致肿瘤控制的显着改善,具有比常规全身施用5-氟尿嘧啶更少的正常组织毒性,这将翻译 改善治愈率和更好的生存。 描述了用于通过磁共振光谱法连续体内监测5-氟尿嘧啶的非侵入性方法。构建了在肿瘤细胞中选择性复制缺陷型p53途径的编码胞嘧啶脱氨酶基因的腺病毒。 还提供了编码胞嘧啶脱氨酶和尿嘧啶磷酸核糖转移酶的融合蛋白的腺病毒。