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    • 16. 发明申请
    • DIPEPTIDE MIMETICS OF NGF AND BDNF NEUROTROPHINS
    • 神经生长因子和BDNF神经营养因子的神经递质
    • US20150111828A1
    • 2015-04-23
    • US14460881
    • 2014-08-15
    • UCHREZHDENIE ROSSIISKOI AKADEMII MEDITSYNSKIKH NAUK NAUCHNO-ISSLEDOVATELSKY INSTITUT FARMAKOLOGII
    • Sergey Borisovich SEREDENINAlexandrovna Tatyana GUDASHEVA
    • C07K5/072C07K5/062C07K5/068
    • C07K5/06104A61K38/00C07K5/02C07K5/06C07K5/06026C07K5/0606C07K5/06069C07K5/06078C07K5/06086C07K5/06113
    • The invention relates to compounds having either agonist or antagonist activities for the neurotrophins NGF and BDNF and represented by monomeric or dimeric substituted dipeptides that are analogs of the exposed portions of loop 1 or loop 4 regions of these neurotrophins near or at a beta-turn of the respective loop. N-acylated substituents of these dipeptides are biostereoisomers of the amino acid residues preceding these dipeptide sequences in the neurotrophin primary structure. The dimeric structure is produced advantageously by using hexamethylenediamine to which dipeptides are attached via their carboxyl groups. The claimed compounds displayed neuroprotective and differentiation-inducing activities in cellular models and enhanced the amount of phosphorylated tyrosine kinase A and the heat shock proteins Hsp32 and Hsp70 in the concentration range of 10−9 to 10−5 M. They also displayed neuroprotective, anti-parkinsonian, anti-stroke, anti-ischemic, anti-depressant and anti-amnestic activities in animal models and were active in experimental models of Alzheimer's disease. These in vivo effects of the claimed compounds are displayed in the dose range of 0.01 to 10 mg/kg when administered intraperitoneally.
    • 本发明涉及具有针对神经营养蛋白NGF和BDNF的激动剂或拮抗剂活性的化合物,并且由单体或二聚取代的二肽代表,所述二肽是这些神经营养因子的环1或环4区域的暴露部分的类似物,接近或处于β-转角 各自的循环。 这些二肽的N-酰化取代基是神经营养蛋白一级结构中这些二肽序列之前的氨基酸残基的生物立体异构体。 通过使用通过其羧基连接二肽的六亚甲基二胺有利地产生二聚结构。 所要求保护的化合物在细胞模型中显示神经保护和分化诱导活性,并且在10-9至10-5M的浓度范围内增强磷酸化酪氨酸激酶A和热休克蛋白Hsp32和Hsp70的量。它们还显示神经保护,抗 帕金森病,抗中风,抗缺血,抗抑郁和抗惊厥活动,并在阿尔茨海默病的实验模型中活跃。 当腹膜内给药时,所要求保护的化合物的这些体内作用以0.01至10mg / kg的剂量范围显示。