申请人:Chemtob Sylvain
公开号:US20060094663A1
公开(公告)日:2006-05-04
Peptides that are designed to inhibit the biological activity of the IL-1R type 1 receptor and inhibit IL-1R/IL-1RacP related cell signaling and biological activity are disclosed. Compositions comprising IL-1R antagonists of the present invention are useful in the treatment of IL-1 related diseases or conditions such as arthritis, rheumatoid arthritis, osteoarthritis, and inflammatory bowel disease as well as other chronic or acute inflammatory diseases. This invention also discloses an isolated compound having an IL-1R antagonist activity, said compound being selected from the group consisting of: a peptide comprising the amino acid sequence RYTPELX, wherein R, Y, T, P, E, L, refer to their corresponding amino acids, and X is selected from no amino acid and alanine (A); and a derivative of (a) wherein the derivative incorporates one, two or three amino acid modification selected from an amino acid addition, deletion or substitution in the RYTPEL portion of the peptide, and wherein said derivative maintains its antagonist IL-1R activity.
本发明揭示了设计用于抑制IL-1R类型1受体的生物活性并抑制IL-1R/IL-1RacP相关细胞信号传导和生物活性的肽。本发明的IL-1R拮抗剂组合物在治疗与IL-1相关的疾病或病况,如关节炎、类风湿性关节炎、骨关节炎和炎性肠病以及其他慢性或急性炎症性疾病方面非常有用。本发明还揭示了一种具有IL-1R拮抗剂活性的分离化合物,所述化合物选自以下组成的群体:包括氨基酸序列RYTPELX的肽,其中R、Y、T、P、E、L分别指它们对应的氨基酸,X选自无氨基酸和丙氨酸(A);以及(a)的衍生物,该衍生物在肽的RYTPEL部分中包含一、二或三个氨基酸修饰,所选的修饰包括氨基酸添加、删除或替换,并且该衍生物保持其拮抗剂IL-1R活性。