阿尔茨海默症
阿尔茨海默症(AD)是一种常见的神经退行性疾病,临床上以记忆障碍、失语、失用、失认、视空间技能损害、执行功能障碍以及人格和行为改变等全面性痴呆为表现特征。AD患者的病灶一般会出现细胞外淀粉样蛋白沉淀,以及细胞内神经元纤维的缠结,从而引起神经元功能障碍,导致细胞死亡。
β-淀粉样蛋白(Amyloid-beta,Aβ),是由β-淀粉样前体蛋白(Amyloid-beta Precursor Protein, APP)被β-分泌酶和γ-分泌酶切割成的含有38-43个氨基酸不等的多肽片段,其中,常见的Aβ(1-40)和Aβ(1-42)是形成沉淀的主要亚型。这些片段会堵塞离子通道,从而使钙离子稳态失衡并出现各种代谢异常,最终导致神经元的死亡。正常生理状态下,APP会被α-分泌酶切割成sAPPα,促进神经元的存活和功能的建立,正常分泌的Aβ也会被代谢分解,不会形成沉淀,维持神经系统的正常功能。(图B)
AD的另一个主要病理特征为神经元纤维缠结(Neurofibrillary Tangles),研究显示Tau蛋白的过度磷酸化是造成神经元纤维缠结的关键因素。Tau蛋白是一种在神经轴突中表达的微管结合蛋白,对调节神经元中微管的稳定性具有重要作用,Tau蛋白具有9种常见的同源异构体。当体内GSK3B和CDK5等激酶对Tau蛋白过度磷酸化后,Tau蛋白将从微管上分离,从而使微管失去稳定性并导致神经元凋亡。同时,小胶质细胞产生的炎症因子,也会通过上调ROS,引起神经元的死亡。(图C)
AD相关靶标 | 产品货号 | 精品 | 重组兔单抗 | 产品名称 | 反应种属 | 应用 |
Tau | R22821 | √ | √ | Tau Rabbit mAb | Rat | WB,IP |
R25862 | √ | √ | Tau Rabbit mAb | Human,Mouse,Rat | WB |
R23342 | √ | √ | Phospho-Tau (Thr181) Rabbit mAb | Human | WB,IP |
R25853 | √ | √ | Phospho-Tau (Ser202) Rabbit mAb | Human,Mouse,Rat | WB,IP |
381181 | √ |
| Phospho-Tau (Thr231) Rabbit pAb | Human,Mouse,Rat | WB,IHC-P,IP |
R23326 | √ | √ | Phospho-Tau (Ser404) Rabbit mAb | Human,Rat | WB |
APP | R23330 | √ | √ | Amyloid Precursor Protein Rabbit mAb | Mouse,Rat | WB,IHC-F,IHC-P,ICC/IF |
R26253 | √ | √ | Phospho-Amyloid Precursor Protein (Thr743) Rabbit mAb | Human,Rat | WB,ICC/IF,IP |
GSK3β | 200494-2E6 | √ |
| GSK3 beta (2E6) Mouse mAb | Human,Mouse,Rat | WB,ICC/IF,IP,FC |
R22943 | √ | √ | Phospho-GSK3 beta (Ser9) Rabbit mAb | Human,Mouse,Rat | WB,IHC-F,IHC-P,ICC/IF |
R22884 | √ | √ | GSK3 alpha/beta Rabbit mAb | Human,Rat,Hamster | WB |
CDK5 | 220571 |
|
| CDK5 (3C9) Mouse mAb | Human,Rat,Monkey | WB,IHC-P,ICC/IF,FC |
200543 | √ |
| CDK5 (2E8) Mouse mAb | Human,Mouse,Rat,Monkey | WB,ICC/IF |
alpha-secretase | 381790 |
|
| ADAM10 Rabbit pAb | Human,Mouse,Rat | WB,IP |
beta-secretase | 381865 |
|
| BACE1 Rabbit pAb | Human,Mouse,Rat | WB,IP |
R23580 | √ | √ | BACE1 Rabbit mAb | Rat | WB,IP |
gamma-secretase | R25440 | √ | √ | Presenilin 1 Rabbit mAb | Human,Mouse,Rat | WB,ICC/IF,IP |
R22550 | √ | √ | Presenilin 2 Rabbit mAb | Human,Mouse,Rat | WB,IP |
R25154 | √ | √ | Nicastrin Rabbit mAb | Human,Mouse,Rat | WB,IP |
R27150 | √ | √ | PEN2 Rabbit mAb | Human,Mouse,Rat | WB,IHC-F,IHC-P,ICC/IF |
PKC | R25382 | √ | √ | PKC alpha Rabbit mAb | Human,Mouse,Rat | WB,IHC-P,IP |
R22939 | √ | √ | Phospho-PKC alpha (Thr638) Rabbit mAb | Human,Mouse,Rat | WB,IHC-P,IP |
AKT | R23411 | √ | √ | AKT Rabbit mAb | Human,Mouse,Rat | WB,ICC/IF |
310021 | √ |
| Phospho-AKT (Ser473) Rabbit pAb | Human,Mouse,Rat | WB,IHC-P |