摘要:
The present invention is directed to a novel class of cyclic polypeptides of the formula: (R1)a-AA1-cyclo[AA2-AA3-AA4-AA5-AA6-Cys]-AA7-R2, pharmaceutically acceptable salts thereof, wherein the variables are as defined in the specification, which inhibit the effects of urotensin-II and are useful for treating a variety of diseases and/or conditions characterized by an excess of urotensin-II including ischaemic heart disease, congestive heart failure, portal hypertension, variceal bleeding, hypotension, angina pectoris, myocardial infarction, ulcers, anxiety, schizophrenia, manic depression, delirium, dementia, mental retardation and/or dyskinesias.
摘要:
A cyclic octapeptide of the formula: ##STR1## wherein: A.sup.1 is D-Nal or D-Trp;A.sup.3 is Phe, F.sub.5 -Phe, or X-Phe wherein X is a halogen, NO.sub.2, CH.sub.3, or OH;A.sup.5 is --NH--CH(Y)--CO-- wherein Y is (CH.sub.2).sub.m --R.sub.4 --N(R.sub.5)(R.sub.6) or (CH.sub.2).sub.n --R.sub.4 --NH--C(R.sub.7)--N(R.sub.5) (R.sub.6);A.sup.6 is the D-- or L-- isomer of Thr, Leu, Ile, Nle, Val, and Abu;A.sup.8 is Nal or Trp;m is 1, 2, or 3;n is 1, 2, 3, 4 or 5;each of R.sub.1 and R.sub.2, independently, is H, E, COE, or COOE wherein E is C.sub.1-12 alkyl, C.sub.2-12 alkenyl, C.sub.2-12 alkynyl, phenyl, naphthyl, C.sub.7-12 phenylalkyl or alkylphenyl, C.sub.8-12 phenylalkenyl or alkenylphenyl, C.sub.8-12 phenylalkynyl or alkynylphenyl, C.sub.11-20 naphthylalkyl or alkylnaphthyl, C.sub.12-20 naphthylalkenyl or alkenylnaphthyl, or C.sub.12-20 naphthylalkynyl or alkynylnaphthyl, provided that when one of R.sub.1 or R.sub.2 is COE or COOE, the other must be H;R.sub.4 is C.sub.6 H.sub.4 or absent;R.sub.7 is .dbd.NR.sub.8, .dbd.S, or .dbd.O; andeach of R.sub.3, R.sub.5, R.sub.6, and R.sub.8, independently, is H or E.
摘要翻译:下式的环状八肽:其中:A1为D-Nal或D-Trp; A3是Phe,F5-Phe或X-Phe,其中X是卤素,NO 2,CH 3或OH; A5是-NH-CH(Y)-CO-,其中Y是(CH2)m-R4-N(R5)(R6)或(CH2)n-R4-NH-C(R7)-N(R5) ); A6是Thr,Leu,Ile,Nle,Val和Abu的D-或L-异构体; A8是Nal或Trp; m为1,2或3; n为1,2,3,4或5; R 1和R 2各自独立地是H,E,COE或COOE,其中E是C 1-12烷基,C 2-12烯基,C 2-12炔基,苯基,萘基,C 7-12苯基烷基或烷基苯基,C 8-12苯基烯基 或烯基苯基,C 8-12苯基炔基或炔基苯基,C 11-20萘基烷基或烷基萘基,C 12-20萘基烯基或链烯基萘基,或C 12-20萘基炔基或炔基萘基,条件是当R 1或R 2中的一个为COE或COOE时,另一个必须为H ; R4为C6H4或不存在; R 7 = NR 8,= S或= O; R 3,R 5,R 6和R 8各自独立地为H或E.
摘要:
A method of selectively inhibiting biochemical activity of cells induced by neuromedin B. The method includes the step of contacting cells which contain neuromedin B receptor with a cyclic octapeptide, D-Nal-Cys-Tyr-D-Trp-Lys-Val-Cys-Nal-NH.sub.2, or an analog thereof.
摘要:
A bradykinin analog which contains nine or ten amino acid residues and at least one [CH.sub.2 NH] pseudopeptide bond, the analog being useful as an antagonist or agonist of the naturally occuring bradykinin.
摘要翻译:包含9或10个氨基酸残基和至少一个[CH 2 N H]假肽键的缓激肽类似物,该类似物可用作天然存在的缓激肽的拮抗剂或激动剂。
摘要:
A method of treating a mammal suffering from cancer by administering to the mammal somatostatin or an analog thereof, the analog being a hexapeptide analog or higher, in a dosage of at least 25 .mu.g/kg/day.
摘要翻译:通过以至少25μg/ kg /天的剂量向哺乳动物生长抑素或其类似物(类似物为六肽类似物或更高剂量)治疗患有癌症的哺乳动物的方法。
摘要:
A linear peptide which is an analog of a naturally occurring, biologically active peptide having an active site and a binding site responsible for the binding of the peptide to a receptor on a target cell, cleavage of a peptide bond in the active site to the naturally occurring peptide being unnecessary for in vivo biological activity, the analog having a non-peptide bond instead of a peptide bond between an amino acid of the active site and an adjacent amino acid, and having the same binding site as the naturally occurring peptide, so that the analog is capable of acting as a competitive inhibitor of the naturally occurring peptide by binding to the receptor and, by virtue of the non-peptide bond, failing to exhibit the in vivo activity of the naturally occurring peptide.
摘要:
This invention relates to novel analogs of pituitary adenylate cyclase-activating polypeptide (PACAP), which are agonists for the PACAP/vasoactive intestinal peptide (VIP) receptors: PAC1, VPAC1 and VPAC2 receptors. These PACAP analogs can be used as prophylactic/therapeutic agents for a wide range of medical disorders, including (but not limited to) cancer and autoimmune disease. These PACAP analogs can be coupled to suitable radionuclides and used in the localization, diagnosis and treatment of disseminated cancers and metastatic tumors, or coupled to small molecule therapeutics and used as vectors for targeted drug delivery. This invention also provides pharmaceutical compositions of one or more PACAP-like compounds of the invention either alone or in combination with one or more other prophylactic/therapeutic agents.
摘要:
The invention provides methods for treatment, prevention or management of obesity, obesity related disorders, diabetes mellitus, and metabolic syndrome in a subject by administering a ghrelin O-acyltransferase (GOAT) inhibitor and/or a ghrelin receptor antagonist to the subject. The invention also provides ghrelin receptor antagonists of formula (VII): A11-A12-A13-Gly-Ser-A14-Phe-Leu-A15-A16-A17-A18 (SEQ ID NO: 93), wherein each of A11, A12, and A13 is independently absent, an amino acid, or an amino protecting group; each of A15, A16, A17, and A18 is independently absent or an amino acid; and A14 is a serine conjugated with a —(O)C1-C20alky or a diaminopropionic acid conjugated with a —C(O)C1-C20alkyl group, provided that at least one of A11, A12, or A13 is present.
摘要翻译:本发明通过向受试者施用生长素释放肽O-酰基转移酶(GOAT)抑制剂和/或生长素释放肽受体拮抗剂来提供治疗,预防或控制受试者中肥胖症,肥胖相关病症,糖尿病和代谢综合征的方法。 本发明还提供式(VII)的生长素释放肽受体拮抗剂:A11-A12-A13-Gly-Ser-A14-Phe-Leu-A15-A16-A17-A18(SEQ ID NO:93),其中A11,A12 ,并且A13独立地不存在,氨基酸或氨基保护基; A15,A16,A17和A18各自独立地不存在或氨基酸; 并且A14是与-C(O)C1-C20烷基共轭的 - (O)C1-C20烷基或二氨基丙酸缀合的丝氨酸,条件是存在A11,A12或A13中的至少一种。