1. Signaling Pathways
  2. PI3K/Akt/mTOR
    Stem Cell/Wnt
  3. GSK-3

GSK-3 (糖原合成酶激酶3)

Glycogen synthase kinase 3 (GSK-3) is a multifunctional serine/threonine kinase consisting of two isoforms, alpha and beta. It is a highly conserved negative regulator of receptor tyrosine kinase, cytokine, and Wnt signaling pathways. Stimulation of these pathways inhibits GSK-3 to modulate diverse downstream effectors that include transcription factors, nutrient sensors, glycogen synthesis, mitochondrial function, circadian rhythm, and cell fate. GSK-3 also regulates alternative splicing in response to T-cell receptor activation, and recent phosphoproteomic studies have revealed that multiple splicing factors and regulators of RNA biosynthesis are phosphorylated in a GSK-3-dependent manner.

The malfunction or aberrant activity of GSK-3 leads to several of disorders, such as Alzheimer's disease (AD) and other neurodegenerative pathologies, and other type of diseases as diabetes, cardiovascular disorders and cancer. GSK-3 is also related to innate immune response against pathogens, which makes GSK-3 an excellent target for therapeutic intervention.

GSK-3 亚型特异性产品:

  • GSK-3

  • GSK-3α

  • GSK-3β

目录号 产品名 作用方式 纯度
  • HY-10182
    Laduviglusib Inhibitor ≥98.0%
    Laduviglusib (CHIR-99021) 是一种有效的选择性 GSK-3α/β 抑制剂,IC50 为 10 nM 和 6.7 nM。Laduviglusib 对 GSK-3 的选择性比 CDC2,ERK2 和其他蛋白激酶高 500 倍以上。Laduviglusib 还是一种有效的 Wnt/β-catenin 信号通路激活剂。CHIR-99021 可增强小鼠和人类胚胎干细胞的自我更新。Laduviglusib 能诱导细胞自噬 (autophagy)。
  • HY-12012
    SB 216763 Inhibitor 99.30%
    SB 216763是有效,选择性和ATP竞争性的 GSK-3 抑制剂,抑制GSK-3α和GSK-3β的 IC50 为34.3 nM。
  • HY-16294
    LY2090314 Inhibitor 99.72%
    LY2090314 是一种有效的 GSK-3 抑制剂,抑制 GSK-3α 和 GSK-3β,IC50 值分别为 1.5 nM 和 0.9 nM。
  • HY-10182A
    Laduviglusib monohydrochloride Inhibitor 99.93%
    Laduviglusib (CHIR-99021) monohydrochloride 是一种有效的选择性 GSK-3α/β 抑制剂,IC50 为 10 nM 和 6.7 nM。Laduviglusib monohydrochloride 对 GSK-3 的选择性比 CDC2,ERK2 和其他蛋白激酶高 500 倍以上。Laduviglusib monohydrochloride 还是一种有效的 Wnt/β-catenin 信号通路激活剂。Laduviglusib monohydrochloride 可增强小鼠和人类胚胎干细胞的自我更新。Laduviglusib monohydrochloride 能诱导细胞自噬 (autophagy)。
  • HY-14872
    Tideglusib Inhibitor 99.66%
    Tideglusib (NP031112) 是一种不可逆的 GSK-3 抑制剂,抑制 GSK-3βWTGSK-3βC199AIC50 分别为5 nM,60 nM。
  • HY-121035
    7BIO Inhibitor ≥98.0%
    7BIO (7-Bromoindirubin-3-Oxime) 是靛玉红的衍生物。7BIO (7-Bromoindirubin-3-Oxime) 对细胞周期蛋白依赖性激酶5 (CDK5) 和糖原合酶激酶-3β (GSK3β) 具有抑制作用。7BIO (7-Bromoindirubin-3-Oxime) 抑制 Aβ 寡聚体诱导的神经炎症、突触损伤、tau 过度磷酸化、星形胶质细胞和小胶质细胞的活化,并减轻 Aβ 寡聚体诱导的小鼠认知障碍[1]
  • HY-114903
    (E/Z)-BIO-acetoxime Inhibitor
    (E/Z)-BIO-acetoxime (GSK-3 Inhibitor X) 是一种有效的选择性 GSK-3α/β 抑制剂,IC50 为 10 nM。(E/Z)-BIO-acetoxime 对 GSK-3α/β 具有超过 CDK5/p25CDK2/cyclin ACDK1/cyclin B (IC50=2.4, 4.3, 63 μM) 200 倍的选择性。
  • HY-122026
    PF-04802367 Inhibitor 98.84%
    PF-04802367 (PF-367) 是一种高选择性 GSK-3 抑制剂,对 GSK-3β 酶的 IC50 为 2.1 nM。PF-04802367 具有理想的中枢神经系统 (CNS) 特性和效力。PF-04802367 抑制两种 GSK-3 亚型(GSK-3αGSK-3β)效果差不多, IC50 值分别为 10.0 和 9.0 nM。
  • HY-10512
    AR-A014418 Inhibitor 99.49%
    AR-A014418 是一种有效,选择性,ATP 竞争性的 GSK3β 抑制剂 (IC50=104 nM; Ki=38 nM)。
  • HY-12302
    Kenpaullone

    肯帕罗酮

    Inhibitor 98.01%
    Kenpaullone 是一种有效的 CDK1/cyclin BGSK-3β 抑制剂,IC50 值分别为 0.4 μM 和 23 nM,同时可抑制 CDK2/cyclin A,CDK2/cyclin E 和 CDK5/p25 的活性,IC50 值分别为 0.68 μM,7.5 μM 和 0.85 μM。Kenpaullone,一种 KLF4 的小分子抑制剂,在体外降低乳腺癌干细胞的自我更新和细胞活力。
  • HY-10182B
    Laduviglusib trihydrochloride Inhibitor 98.68%
    Laduviglusib (CHIR-99021) trihydrochloride 是一种有效的选择性 GSK-3α/β 抑制剂,IC50 为 10 nM 和 6.7 nM。CHIR-99021 trihydrochloride 对 GSK-3 的选择性比 CDC2,ERK2 和其他蛋白激酶高 500 倍以上。Laduviglusib trihydrochloride 还是一种有效的 Wnt/β-catenin 信号通路激活剂。Laduviglusib trihydrochloride 可增强小鼠和人类胚胎干细胞的自我更新。Laduviglusib trihydrochloride 能诱导细胞自噬 (autophagy)。
  • HY-10580
    GSK 3 Inhibitor IX Inhibitor ≥98.0%
    GSK 3 Inhibitor IX (6-Bromoindirubin-3'-oxime; BIO) 是一种有效的,选择性的,可逆的,ATP 竞争性的 GSK-3α/βCDK1-cyclinB 复合体抑制剂,能够抑制 (GSK-3α/β)/CDK1/CDK5 的活性,IC50 值分别为 5 nM/320 nM/83 nM。
  • HY-11012
    TDZD-8 Inhibitor 99.76%
    TDZD-8 是 GSK-3β 的抑制剂,IC50 为 2 μM;TDZD-8 对 Cdk-1/cyclin B,CK-II,PKA 和 PKC 的作用较弱,IC50 值均 >100 μM。
  • HY-10590
    TWS119 Inhibitor ≥98.0%
    TWS119 是一种 GSK-3β 特异性抑制剂,IC50 值为 30 nM,同时可激活 wnt/β-catenin 信号通路。
  • HY-13862
    AZD1080 Inhibitor ≥98.0%
    AZD1080 是一种有效的选择性 GSK3 抑制剂。AZD1080 抑制重组人 GSK3αGSK3βpKi (IC50) 分别为 8.2 (6.9 nM) 和 7.5 (31 nM)。
  • HY-B0320A
    Cromolyn sodium

    色甘酸钠

    Inhibitor 99.10%
    Cromolyn sodium (Disodium Cromoglycate; FPL-670) 是抗过敏化合物。Cromolyn sodium 是一种 GSK-3β 抑制剂,IC50 为 2.0 µM。
  • HY-113914
    9-ING-41 Inhibitor 99.32%
    9-ING-41 是一种基于马来酰亚胺的 ATP 竞争性和选择性的糖原合酶激酶-3β (GSK-3β) 抑制剂,IC50 为 0.71 μM。9-ING-41 显著导致癌细胞的细胞周期停滞,自噬和凋亡。9-ING-41 具有抗癌活性,并具有增强化疗药物抗肿瘤作用的潜力。
  • HY-10014
    R547 Inhibitor 99.66%
    R547 是一种高效、选择性的,口服有效的 ATP 竞争性的 CDK 抑制剂,对 CDK1/cyclin B、 CDK2/cyclin E 和 CDK4/cyclin D1 作用的 Ki 值分别为 2 nM、3 nM、1 nM。
  • HY-13076
    CHIR-98014 Inhibitor ≥98.0%
    CHIR-98014 是一种有效的,细胞通透的 GSK-3 抑制剂,可抑制 GSK-3αGSK-3β 的活性,IC50 值分别为 0.65 和 0.58 nM;CHIR-98014 对 cdc2 和 erk2 的作用较弱。
  • HY-15761
    AZD2858 Inhibitor 99.42%
    AZD2858 是一种有效的,可口服的 GSK-3 抑制剂,可以抑制 GSK-3αGSK-3β 的活性,IC50 值分别为 0.9 和 5 nM,可用于骨折愈合的研究。

Glycogen synthase kinase 3 (GSK-3) is a multifunctional serine/threonine kinase found in all eukaryotes. GSK-3 is one of the few signaling mediators that play central roles in a diverse range of signaling pathways, including those activated by Wnt, PI3K, growth factors, cytokines, and ligands for G protein-coupled receptors. The PI3K pathway is known for regulating metabolism, cell growth, and cell survival. The PI3K activity is stimulated by diverse oncogenes and growth factor receptors. PI3K-mediated production of PIP3 leads to the activation of Akt. The activation of Akt leads to the phosphorylation of GSK-3, which is active in resting cells, but is inactivated by the phosphorylation. The GSK-3 has been linked to the regulation of an assembly of transcription factors, including β-catenin, NF-κB, c-Jun, CREB, and STAT. Thus, the altered activity of GSK-3 causes various effects on cytokine expression. 

 

In the absence of Wnt signaling, β-catenin is phosphorylated by CK1 and GSK-3. This phosphorylation leads to recognition by β-TrCP, leading to the ubiquitylation of β-catenin and degradation by the proteasome. Upon binding of a lipid-modified Wnt protein to the receptor complex, a signaling cascade is initiated. LRP is phosphorylated by CK1/CK2 and GSK-3, and Axin is recruited to the plasma membrane. The kinases in the β-catenin destruction complex are inactivated and β-catenin translocates to the nucleus to form an active transcription factor complex with TCF, leading to transcription of a large set of target genes.

 

Some endogenous growth factors could bind to and activate the tyrosine kinase receptor. This facilitates the recruitment of other proteins (SHC, SOS), which results in the activation of the ERK-MAPK cascade and the inhibition of GSK-3. GSK-3 exerts many cellular effects: it regulates cytoskeletal proteins, and is important in determining cell survival/cell death. GSK-3 has also been identified as a target for the actions of lithium. GSK-3 can inhibit glycogen synthase, the enzyme that catalyzes the transfer of glucose from UDPG to glycogen[1][2].

 

Reference:

[1]. Brenner D, et al. Regulation of tumour necrosis factor signalling: live or let die.Nat Rev Immunol. 2015 Jun;15(6):362-74. 
[2]. Conrad M, et al. Regulated necrosis: disease relevance and therapeutic opportunities.Nat Rev Drug Discov. 2016 May;15(5):348-66. 

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