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    • 26. 发明申请
    • RECEPTOR-SELECTIVE SOMATOSTATIN ANALOGS
    • 受体选择性SOMATOSTATIN ANALOGS
    • WO0144273A3
    • 2002-08-15
    • PCT/US0042815
    • 2000-12-13
    • SALK INST FOR BIOLOGICAL STUDI
    • RIVIER JEAN E FREUBI JEAN CLAUDE
    • A61P5/04A61P35/00C07K7/64C07K14/655A61K38/31A61K51/08G01N33/74
    • C07K14/655C07K7/64Y10S930/16
    • Analogs of SRIF which are selective for SSTR3 in contrast to the other cloned SRIF receptors. These analogs are useful in determining the tissue and cellular expression of the receptor SSTR3 and its biological role in the endocrine, exocrine and nervous system, as well as in regulating tumor growth. SRIF analog peptides, such as des-AA1,2,4,5,12,13[N MeD-Agl8(2-naphthoyl)]-SRIF and counterparts incorporating D-Cys3 and/or Tyr7, inhibit the binding of a universal SRIF radioligand to the cloned human receptor SSTR3, but they do not bind with significant affinity to human SSTR1, SSTR2, SSTR4 or SSTR5. By incorporating an iodinated tyrosine in position-2 or in position-11 in these SSTR3-selective SRIF analogs, a labeled compound useful in drug-screening methods is provided. Because the N-terminus accommodates bulky moieties without loss of selectivity, a cytotoxin or a complexing agent to accept a radioactive nuclide may be present at the N-terminus. Alternatively,the binding affinity may be improved without detriment to the selectivity by adding a carbamoyl moiety at the N-terminus and/or replacing Phe11 with Aph or substituted Aph.
    • 与其他克隆的SRIF受体相反,SIF3选择性的SRIF的类似物。 这些类似物可用于确定受体SSTR3的组织和细胞表达及其在内分泌,外分泌和神经系统中的生物学作用以及调节肿瘤生长。 SRIF类似物肽如des-AA1,2,4,5,12,13 [N MeD-Ag18(2-萘甲酰基)] -SRIF和掺入D-Cys3和/或Tyr7的对应物抑制通用SRIF的结合 放射性配体与克隆的人受体SSTR3,但它们不以与人SSTR1,SSTR2,SSTR4或SSTR5的显着亲和力结合。 通过在这些SSTR3选择性SRIF类似物中加入位置2或位置-11中的碘化酪氨酸,提供了可用于药物筛选方法的标记化合物。 因为N-末端可以容纳庞大的部分而不丧失选择性,所以在N-末端可以存在接受放射性核素的细胞毒素或络合剂。 或者,可以通过在N末端加入氨基甲酰基部分和/或用Aph或取代的Aph代替Phe11而改善结合亲和力而不损害选择性。
    • 27. 发明申请
    • IMPROVED CYCLIC CRF ANTAGONISTS
    • 改进的循环CRF ANTAGONISTS
    • WO9619499A2
    • 1996-06-27
    • PCT/US9516261
    • 1995-12-08
    • SALK INST FOR BIOLOGICAL STUDI
    • RIVIER JEAN E F
    • G01N33/15A61K38/00A61K38/04A61K45/00A61P25/00A61P29/00A61P35/00C07K14/575G01N33/50G01N33/566G01N33/68G01N33/74C07K14/695C07K7/64C12Q1/00G01N33/53
    • G01N33/5008A61K38/00C07K14/57509G01N33/502G01N33/566G01N33/68G01N33/6842G01N33/74G01N2333/5751Y10S514/805Y10S930/26
    • Novel cyclic CRF antagonist peptides have the amino acid sequence: (cyclo 30-33)Y-D-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu-Ala-Gln-R30-Ala-R32-R33-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2, wherein Y is Ac, H, Ac-Thr or H-Thr; R30 is Glu or Cys; R32 is His or preferably a basic and/or aromatic D-amino acid such as D-His or D-Arg; R33 is Lys, Orn or Cys. The N-terminus may be extended by Leu or Asp-Leu. CML may be substituted for Leu , and D-Tyr may be substituted for D-Phe to facilitate labelling. Lys may be substituted for Arg , and its side chain connected by a lactam bridge to Glu to form a bicyclic peptide. Disclosed CRF antagonists include: (cyclo 30-33)[D-Phe , Nle , Glu , Lys ]r/hCRF(12-41); cyclo 30-33)[Ac-Thr , D-Phe , Nle , Glu , Lys ]r/hCRF(11-41); (cyclo 30-33)[D-Phe , Nle , Cys ]r/hCRF(12-41); (bicyclo 20-23, 30-33)[D-Phe , Nle , Lys , GLu ]-r/hCRF(12-41); (cyclo 30-33)[D-Phe , Nle , Glu , D-His , Lys ]r/hCRF(12-41); (cyclo 30-33)[D-Phe , Nle , CML , Glu , D-His , Lys ]r/hCRF(12-41) and (cyclo 30-33)[D-Phe , Nle , Glu , D-Arg , Lys ]r/hCRF(12-41). Labelled antagonists such as (cyclo 30-33)[I D-Tyr , Nle , Glu , D-His , Lys ]r/hCRF(12-41) are useful in drug screening assays.
    • 新的循环CRF拮抗剂肽具有氨基酸序列:(环30-33)YD-Phe-His-Leu-Leu-Arg-Glu-Val-Leu-Glu-Nle-Ala-Arg-Ala-Glu-Gln-Leu -Ala-Gln-R30-Ala-R32-R33-Asn-Arg-Lys-Leu-Nle-Glu-Ile-Ile-NH2,其中Y是Ac,H,Ac-Thr或H-Thr; R30是Glu或Cys; R32是His或优选碱性和/或芳族D-氨基酸,例如D-His或D-Arg; R33是Lys,Orn或Cys。 N末端可以被Leu或Asp-Leu延伸。 CML可以代替Leu <27>,D-Tyr可以被D-Phe取代以便于标记。 Lys取代Arg 23,其侧链通过内酰胺桥连接至Glu 20以形成双环肽。 公开的CRF拮抗剂包括:(环30-33)[D-Phe12,Nle <21,38>,Glu 30,Lys 33] r / hCRF(12-41); 环30-33)[Ac-Thr 11,D-Phe 12,Nle <21,38>,Glu 30,Lys 33] r / h CRF(11-41); (环30-33)[D-Phe 12,Nle <21,38>,Cys 30-33>] r / hCRF(12-41); (双环20-23,30-33)[D-Phe12,Nle <21,38>,Lys 23,33>,GLu 30] -r / hCRF(12-41); (环30-33)[D-Phe12,Nle <21,38>,Glu 30,D-His 32,Lys 33] r / hCRF(12-41); (环30-33)[D-Phe 12,Nle <21,38>,CML 27,Glu 30,D-His 32,Lys 33] r / hCRF(12-41 )和(环30-33)[D-Phe 12,Nle <21,38>,Glu 30,D-Arg 32,Lys 33] r / h CRF(12-41)。 标记的拮抗剂,例如(环30-33)[I 125 I Dyr T 12,Nle 21,38>,Glu 30,D-His 32,Lys 33] r / h CRF 12-41)可用于药物筛选试验。