申请人:Port Marc
公开号:US20110200533A1
公开(公告)日:2011-08-18
The present invention relates to a compound of the following general formula (I):
Signal-Linker-Peptide (I) in which: -Signal represents a signal entity; -Linker, which may or may not be present, represents a chemical bond, and -Peptide represents a peptide comprising a VCAM-targeting peptide, the VCAM-targeting peptide being chosen from the peptides of formula below and the functional equivalents thereof:
a) X1-X2-X3-X4-X5-X6-X7-X8-X9 (1) (SEQ ID No. 1) where X1 is absent or chosen from cysteine and methionine; X2 chosen from asparagine and glutamine; X3 chosen from asparagine and glutamine; X4 chosen from serine and threonine; X5 chosen from lysine, arginine, histidine and ornithine; X6 chosen from serine and threonine; X7 chosen from histidine, arginine and lysine; X8 chosen from threonine and serine; X9 is absent or chosen from cysteine and methionine; preferably, the peptide CNNSKSHTC (SEQ ID No. 2) and the peptide NNSKSHT (SEQ ID No. 3);
b) X10-X11-X12-X13-X14-X15-X16-X17-X18 (2) (SEQ ID No. 4) with X10 chosen from cysteine and methionine; X11 chosen from methionine and cysteine; X12 chosen from lysine, arginine and alanine; X13 chosen from threonine and serine; X14 chosen from aspartic acid and glutamic acid; X15 chosen from threonine and serine; X16 chosen from arginine, alanine and lysine; X17 chosen from leucine, isoleucine and valine; X18 chosen from cysteine and methionine; preferably, the peptide CMKTDTRLC (SEQ ID No. 5); and the pharmaceutically acceptable salts of these compounds of a) or of b).
本发明涉及以下一般式(I)的化合物:Signal-Linker-Peptide (I)其中:- Signal代表信号实体;- Linker,可以存在也可以不存在,代表化学键;- Peptide代表包含VCAM靶向肽的肽,所述VCAM靶向肽从以下式的肽中选择,以及其功能等效物:a) X1-X2-X3-X4-X5-X6-X7-X8-X9 (1) (序列号1),其中X1不存在或从半胱氨酸和蛋氨酸中选择;X2从天冬氨酸和谷氨酸中选择;X3从天冬氨酸和谷氨酸中选择;X4从丝氨酸和苏氨酸中选择;X5从赖氨酸、精氨酸、组氨酸和鸟氨酸中选择;X6从丝氨酸和苏氨酸中选择;X7从组氨酸、精氨酸和赖氨酸中选择;X8从苏氨酸和丝氨酸中选择;X9不存在或从半胱氨酸和蛋氨酸中选择;优选的肽为CNNSKSHTC (序列号2)和NNSKSHT (序列号3);b) X10-X11-X12-X13-X14-X15-X16-X17-X18 (2) (序列号4),其中X10从半胱氨酸和蛋氨酸中选择;X11从蛋氨酸和半胱氨酸中选择;X12从赖氨酸、精氨酸和丙氨酸中选择;X13从苏氨酸和丝氨酸中选择;X14从天冬氨酸和谷氨酸中选择;X15从苏氨酸和丝氨酸中选择;X16从精氨酸、丙氨酸和赖氨酸中选择;X17从亮氨酸、异亮氨酸和缬氨酸中选择;X18从半胱氨酸和蛋氨酸中选择;优选的肽为CMKTDTRLC (序列号5);以及a)或b)中的这些化合物的药用盐。