申请人:Asami Taiji
公开号:US20100331520A1
公开(公告)日:2010-12-30
The present invention provides stable metastin derivatives having excellent biological activities (a cancer metastasis suppressing activity, a cancer growth suppressing activity, a gonadotrophic hormone secretion stimulating activity, sex hormone secretion stimulating activity, etc.). By substituting the constituent amino acids of metastin with specific amino acids in the metastin derivative of the present invention, blood stability, solubility, etc. are more improved, gelation tendency is reduced, pharmacokinetics are also improved, and an excellent cancer metastasis suppressing activity or a cancer growth suppressing activity is exhibited. Furthermore, the metastin derivative of the present invention has the effects of suppressing gonadotropic hormone secretion, suppressing sex hormone secretion, etc.
本发明提供了稳定的metastin衍生物,具有优异的生物活性(癌症转移抑制活性、癌症生长抑制活性、促性腺激素分泌刺激活性、性激素分泌刺激活性等)。通过将metastin的组成氨基酸替换为本发明的特定氨基酸,血液稳定性,溶解性等得到了更大的改善,凝胶化倾向降低,药代动力学也得到了改善,并显示出优异的癌症转移抑制活性或癌症生长抑制活性。此外,本发明的metastin衍生物具有抑制促性腺激素分泌、抑制性激素分泌等效果。