It has been demonstrated that one of Vitamin D Binding Protein (DBP) biological functions is to enhance the chemotactic activity of C5a and C5a des Arg. The present invention has found that peptides having sequences that substantially correspond to a specific region in the N-terminal domain I of DBP can block the DBP enhancement of C5a or C5a des Arg chemotactic activity. Based in this discovery the present invention provides DBP antagonist peptides and the use thereof for the treatment C5a or C5a des Arg-mediated disorders.
研究表明,
维生素 D 结合蛋白(
DBP)的
生物功能之一是增强 C5a 和 C5a des Arg 的趋化活性。本发明发现,具有与
DBP 的 N 端结构域 I 中的特定区域基本对应的序列的
多肽可以阻断
DBP 增强 C5a 或 C5a des Arg 趋化活性。基于这一发现,本发明提供了
DBP 拮抗剂肽及其在治疗 C5a 或 C5a des Arg 介导的疾病中的用途。