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    • 2. 发明申请
    • Novel Antimicrobial Activity of Chicken NK-2 Peptide Against Apicomplexan Protozoa
    • 鸡NK-2肽对Apicomplexan原生动物的新型抗菌活性
    • US20120245082A1
    • 2012-09-27
    • US13071112
    • 2011-03-24
    • Hyun Soon LillehojSung Hyen LeeYeong ho Hong
    • Hyun Soon LillehojSung Hyen LeeYeong ho Hong
    • A61K38/17A61P33/02C07K14/465
    • C07K14/465A61K38/17C07K14/52
    • NK-2 synthetic peptide derived from cationic core region of porcine NK-lysin has an antimicrobial and antitumor polypeptide that is considered to play a pivotal role in innate defense immunity. To evaluate the antimicrobial properties of synthetic chicken NK-lysin peptides, we investigated cytolytic activity against apicomplexan parasites like Eimeria sporozoites, Neospora tachyzoites and Cryptosporidum sporozoites. The chicken NK-2 (cNK-2) lytic peptide which corresponds to amino acid residues of porcine NK-2 peptide significantly disrupted Eimeria and Cryptosporidum sporozoites and Neospora tachyzoites. In contrast, no bactericidal activity was observed on E. coli BMH71-18. The cNK-2 lytic peptide is novel antimicrobial agent which can be used to intervene and treat economically costly infections in the animal industry.
    • 来源于猪NK-lysin的阳离子核心区域的NK-2合成肽具有抗原和抗肿瘤多肽,被认为在先天免疫中具有关键作用。 为了评估合成鸡NK-赖氨酸肽的抗菌性能,我们研究了针对致密虫寄生虫如艾美球虫子孢子,新孢子虫速殖子和隐孢子虫子孢子的溶细胞活性。 对应于NK-2肽氨基酸残基的鸡NK-2(cNK-2)裂解肽显着破坏艾美球虫和隐孢子虫子孢子和新孢子虫速殖子。 相反,在大肠杆菌BMH71-18上没有观察到杀菌活性。 cNK-2裂解肽是新型抗菌剂,可用于干预和治疗动物行业经济上昂贵的感染。