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    • 3. 发明授权
    • Process for large-scale production of antimicrobal peptide in high purity
    • 大规模生产高纯度抗微生物肽的方法
    • US5317084A
    • 1994-05-31
    • US891174
    • 1992-05-29
    • Mamoru TomitaSeiichi ShimamuraKozo KawaseYasuo FukuwatariMitsunori TakaseWayne BellamyTomoyuki HagiwaraHiroyuki Matukuma
    • Mamoru TomitaSeiichi ShimamuraKozo KawaseYasuo FukuwatariMitsunori TakaseWayne BellamyTomoyuki HagiwaraHiroyuki Matukuma
    • A61K38/00A61P31/04C07K1/14C07K1/18C07K1/20C07K1/24C07K14/00C07K14/47C07K14/79C12P21/06C12N9/08C07K3/22C07K13/00
    • C07K14/79A61K38/00
    • Lactoferricin (Trade Mark), also called LFCIN (Trade Mark), a potent antimicrobial peptide, is produced by contacting an enzymatic hydrolysate of bovine lactoferrin or any mixture of peptides containing lactoferricin preferably with a butyl moiety-containing hydrophobic interaction chromatography medium, or alternatively with a carboxymethyl moiety-containing cation-exchange chromatography medium, rinsing the medium to remove unbound peptides, desorbing the lactoferricin solution at constant pH, and desalting the desorbed solution. The utility of the process is illustrated, for example, as follows. An enzymatic hydrolysate of bovine lactoferrin (600 g) was contacted with 3000 ml of BUTYL-TOYOPEARL 650M, the medium was rinsed with water, and then with McIlvaine (citric acid-sodium phosphate) buffer at pH 7.0., and lactoferricin was desorbed with McIlvaine buffer at pH 5.0. The desorbed material was desalted by contacting it with BUTYL-TOYOPEARL 650M, rinsing the medium with water to remove the buffer salts, and desorbing the lactoferricin with 10 mM HCl. A yield of 10.5 g of 99% purity was obtained. The product has applications as a safe and effective antimicrobial agent for use in oral hygiene products, cosmetics, clinical foods, etc.
    • 通过使牛乳铁蛋白的酶水解物或含有乳铁蛋白的任何混合物优选与含有丁基部分的疏水相互作用色谱介质接触来产生乳铁蛋白(商标),也称为LFCIN(商标),其是有效的抗微生物肽。 用含有羧甲基部分的阳离子交换层析介质,漂洗培养基以除去未结合的肽,在恒定pH下解吸乳铁蛋白溶液,并脱盐解吸溶液。 该过程的实用性例如如下所示。 将牛乳铁蛋白(600g)的酶水解物与3000ml BUTYL-TOYOPEARL 650M接触,用水冲洗培养基,然后用pH 7.0的McIlaine(柠檬酸 - 磷酸钠)缓冲液洗涤,并用乳糖铁蛋白溶解 McIlvaine缓冲液pH 5.0。 通过与BUTYL-TOYOPEARL 650M接触将脱附的物质脱盐,用水冲洗培养基以除去缓冲盐,并用10mM HCl解吸乳铁蛋白。 得到10.5g 99%纯度的产率。 该产品作为安全有效的抗微生物剂应用于口腔卫生用品,化妆品,临床食品等。
    • 9. 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。