申请人:Novaspin Biotech GmbH
公开号:US20030114362A1
公开(公告)日:2003-06-19
The subject matter of the present invention is a cyclic or linear tetra- or pentapeptide binding to somatostatin receptors. The compounds of the invention are characterised in that they contain the radical of an amino carboxylic acid bearing a five-membered ring in the peptide backbone which may optionally contain O, S, Se, N, or P. These compounds are easy to prepare and display increased stability against peptidases.
The compounds of the present invention induce apoptosis of tumour cells and the use of said compounds for cancer therapy is described. In particular, the compounds are characterised in that they are active even against tumour cells displaying resistance against other somatostatin derivatives such as octreotide. In addition, the use of the compounds of the invention for tumour diagnosis by means of positron-emission tomography is described, as well as their use as agents against neurogenic inflammation.
本发明涉及一种循环或线性的四肽或五肽,可结合生长抑素受体。本发明的化合物特征在于它们含有氨基羧酸的基团,其肽骨架中带有一个五元环,该五元环可以选择性地含有O、S、Se、N或P。这些化合物易于制备,并且对肽酶具有更高的稳定性。本发明的化合物能够诱导肿瘤细胞凋亡,并描述了这些化合物在癌症治疗中的应用。特别是,这些化合物的特点在于它们甚至对于其他生长抑素衍生物(如奥曲肽)产生抗药性的肿瘤细胞也具有活性。此外,本发明的化合物的用途还包括通过正电子发射断层扫描进行肿瘤诊断,以及作为神经源性炎症的药物。