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    • 10. 发明授权
    • Immunostimulatory agent
    • 免疫刺激剂
    • US5466669A
    • 1995-11-14
    • US971981
    • 1993-02-19
    • Wolfgang KonigMamoru TomitaSeiichi ShimamuraKozo KawaseMitsunori TakaseWayne R. Bellamy
    • Wolfgang KonigMamoru TomitaSeiichi ShimamuraKozo KawaseMitsunori TakaseWayne R. Bellamy
    • A61K38/16A61K8/64A61K38/00A61P37/04A61Q11/00A61Q19/00C07K14/475C07K14/79C07K5/00C07K7/00C07K17/00
    • C07K14/79A61K8/64A61Q19/00A61K38/00A61Q11/00
    • There is disclosed an immunostimulatory agent comprising a peptide derived from lactoferrin having activity to modulate the release of inflammatory mediators from cells of the immune system. The peptide promotes the release of leukotriene B4 from polymorphonuclear neutrophils induced by activators such as the calcium ionophor A23187, It also promotes the release of histamine from mast cells induced by activators such as .alpha.-toxin-producing Staphylococcus aureus cells or the calcium ionophor A23187. The peptide is effective at low concentrations within the range of 1 to 100 ppm. By promoting the release of such inflammatory mediators the peptide can potentiate the cellular immune response and stimulate the host defense against infectious disease. This newly discovered immunostimulatory agent is useful as an active component of pharmaceuticals, hygiene products, clinical foods, etc., for prevention and treatment of bacterial, fungal, and viral infectious in humans and animals.
    • PCT No.PCT / JP92 / 00275 Sec。 371日期:1993年2月19日 102(e)日期1993年2月19日PCT提交1992年3月7日PCT公布。 公开号WO93 / 18061 日本公报1993年9月16日。公开了包含衍生自乳铁蛋白的肽的免疫刺激剂,其具有调节炎症介质从免疫系统细胞释放的活性。 该肽促进白三烯B4从诸如钙离子电极A23187的激活剂诱导的多形核嗜中性粒细胞的释放。它还促进由活化剂如产生α-毒素的金黄色葡萄球菌细胞或钙离子体A23187诱导的肥大细胞释放组胺。 该肽在1至100ppm范围内的低浓度下是有效的。 通过促进这种炎症介质的释放,肽可以增强细胞免疫应答并刺激宿主防止感染性疾病。 这种新发现的免疫刺激剂可用作药物,卫生用品,临床食品等的活性成分,用于预防和治疗感染人类和动物的细菌,真菌和病毒。