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    • 7. 发明授权
    • Biodegradable polymeric drug delivery system with adjuvant activity
    • 具有佐剂活性的可生物降解聚合物药物递送系统
    • US4863735A
    • 1989-09-05
    • US914380
    • 1986-10-02
    • Joachim B. KohnRobert S. LangerSteven M. NiemiJames G. Fox
    • Joachim B. KohnRobert S. LangerSteven M. NiemiJames G. Fox
    • A61K9/22A61K39/39A61K47/48C08G69/10
    • C08G69/10A61K39/39A61K47/48192A61K2039/55516A61K2039/55555A61K2039/55566Y10S514/885Y10S514/953Y10S514/963Y10S514/964Y10S514/965
    • An antigen delivery system utilizing a biodegradable polymer with good mechanical properties in combination with a material stimulating the immune system. The material having adjuvant activity may be polymer degradation products or an adjuvant which is contained within or bound to the polymer. In one embodiment, the polymer is formed from tyrosine dipeptides. Poly(CTTH-iminocarbonate) is a preferred tyrosine dipeptide polymer for constructing implantable delivery systems for antigenic material. The polymer is not an adjuvant in itself but degrades into products which stimulate the immune system. The tyrosine dipeptide can also be used as a conventional adjuvant. The advantages of the system are that a polymer can be used to form a biodegradable integral structure which is useful as both an implantable source of an antigen or other biologically active compound and as a control means for the rate of release of the biologically active compound, wherein the result is sustained, relatively constant delivery of antigen with simultaneous stimulation of the immune response.
    • 使用具有良好机械性能的生物可降解聚合物与刺激免疫系统的材料组合的抗原递送系统。 具有佐剂活性的材料可以是聚合物降解产物或包含在聚合物内或与聚合物结合的佐剂。 在一个实施方案中,聚合物由酪氨酸二肽形成。 聚(CTTH-亚氨基碳酸酯)是用于构建用于抗原材料的可植入递送系统的优选的酪氨酸二肽聚合物。 聚合物本身不是佐剂,但会降解成刺激免疫系统的产物。 酪氨酸二肽也可以用作常规佐剂。 该系统的优点是可以使用聚合物形成可生物降解的整体结构,其可用作抗原的可植入源或其它生物活性化合物,并且作为生物活性化合物的释放速率的对照手段, 其中所述结果是持续的,相对恒定的抗原递送,同时刺激免疫应答。