2. Signaling Pathways
  3. Neuronal Signaling
  4. Amyloid-β

Amyloid-β

β-amyloid peptide; Aβ; Abeta

Amyloid-β

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Amyloid-β (Aβ) denotes peptides of 36–43 amino acids that are crucially involved in Alzheimer's disease as the main component of theamyloid plaques found in the brains of Alzheimer patients. The peptides result from the amyloid precursor protein (APP), which is being cut by certain enzymes to yield Aβ. Amyloid-β molecules can aggregate to form flexible soluble oligomers which may exist in several forms. Amyloid-β peptide is due to overproduction of Aβ and/or the failure of clearance mechanisms. Amyloid-β self-aggregates into oligomers, which can be of various sizes, and forms diffuse and neuritic plaques in the parenchyma and blood vessels. Amyloid-β oligomers and plaques are potent synaptotoxins, block proteasome function, inhibit mitochondrial activity, alter intracellular Ca2+levels and stimulate inflammatory processes. Loss of the normal physiological functions of Aβ is also thought to contribute to neuronal dysfunction.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-168031
    AChE/BChE-IN-21
    		Inhibitor
    AChE/BChE-IN-21 is a histamine H3 receptor antagonist, calcium channel blocker, and acetylcholinesterase inhibitor. AChE/BChE-IN-21 exhibits neuroprotective activity against H2O2 and Aβ1-40, and can restore cognitive function in AD mice.
    AChE/BChE-IN-21
  • HY-P10823
    RI-OR2
    		Inhibitor
    RI-OR2, a retro-inverso peptide, is an amyloid-β (Aβ) oligomerization inhibitor. RI-OR2 binds to immobilized β-Amyloid (1-42) (HY-P1363A) monomers and fibrils, with an apparent Kd of 9-12 μM, and also acted as an inhibitor of Aβ(1-42) fibril extension.
    RI-OR2
  • HY-183760
    AChE/BChE-IN-37
    		Inhibitor
    AChE/BChE-IN-37 is a blood-brain barrier-permeable AChE/BChE inhibitor, with an IC50 of 73.65 μM against electric eel-derived AChE and an IC50 of 82.93 μM against horse-derived BChE. AChE/BChE-IN-37 exhibits chelating activity towards Cu2+, Ca2+, Mg2+, Fe2+ and Zn2+. AChE/BChE-IN-37 interacts with HSP90AA1 and GSK-3β. AChE/BChE-IN-37 inhibits the self-induced aggregation of Aβ1-42. AChE/BChE-IN-37 suppresses LPS-induced NO production in cells. AChE/BChE-IN-37 can be used in research related to Alzheimer's disease and inflammatory diseases.
    AChE/BChE-IN-37
  • HY-146142
    AChE/BuChE-IN-2
    		Inhibitor
    AChE/BuChE-IN-2 (Compound 5f) is an orally active AChE and BuChE inhibitor with IC50 values of 0.72 μM and 0.16 μM, respectively. AChE/BuChE-IN-2 shows a non-competitive inhibition with AChE and shows potent self-induced β-amyloid (Aβ) aggregation inhibition with an IC50 of 62.52 μM. AChE/BuChE-IN-2 can cross the BBB.
    AChE/BuChE-IN-2
  • HY-146483
    Anti-Aβ agent 1A
    		Inhibitor
    Anti-Aβ agent 1A (compound M15) has potent activity against amyloid-β. Anti-Aβ agent 1A possesses can significantly inhibit LPS-induced levels of IL-1β, IL-6 and TNF-α, and reduces the apoptosis of SH-SY5Y induced by H2O2 through mitochondria pathway. Anti-Aβ agent 1A possesses antioxidant, anti-inflammatory, anti-Aβ toxicity and neuroprotective activities. Anti-Aβ agent 1A can be used for researching Alzheimer’s disease (AD).
    Anti-Aβ agent 1A
  • HY-136813
    Multitarget AD inhibitor-1
    		Inhibitor
    Multitarget AD inhibitor-1 is a selective and reversible butyrylcholinesterase (BuChE) inhibitor with IC50s of 7.22 μM and 1.55 μM for hBuChE and eqBuChE (BuChE from equine serum), respectively. Multitarget AD inhibitor-1 inhibits β-secretase (IC50hBACE-1=41.60 μM), amyloid β aggregation (IC50Aβ=3.09 μM), tau aggregation. Multitarget AD inhibitor-1, a diphenylpropylamine derivative, has the potential for multifunctional disease-modifying anti-Alzheimer’s research.
    Multitarget AD inhibitor-1
  • HY-117983
    RU-505
    		Inhibitor
    RU-505 is an effective β-amyloid (Aβ)-fibrinogen interaction inhibitor with IC50s of 5.00 and 2.72 μM in fluorescence polarization (FP) and AlphaLISA assays, respectively. RU-505 is highly permeable to the BBB. RU-505 reduces cerebral amyloid angiopathy (CAA). RU-505 can be used for the research of Alzheimer’s disease (AD).
    RU-505
  • HY-N7046R
    Silybin B (Standard)
    		Inhibitor
    Silybin (Silibinin B) (Standard) is the analytical standard of Silybin B (HY-N7046). This product is intended for research and analytical applications. Silybin B (Silibinin B) is an orally active amyloid-β aggregation inhibitor and ATR pathway activator, that can cross the blood-brain barrier. Silybin B inhibits Aβ fibril formation and promotes amorphous aggregate formation, while activating the ATR-mediated DNA damage repair pathway and inhibiting JNK/p38 MAPK signaling. Silybin B can reduce Cisplatin (HY-17394)-induced neuronal DNA damage and apoptosis. Silybin B has anti-oxidative stress, cell cycle regulation and neuroprotective activities. Silybin B is mainly used in the study of Alzheimer's disease and Cisplatin chemotherapy-related neurotoxicity.
    Silybin B (Standard)
  • HY-N0249R
    Saikosaponin C (Standard)
    		Inhibitor
    Saikosaponin C (Standard) is the analytical standard of Saikosaponin C. This product is intended for research and analytical applications. Saikosaponin C is a bioactive component found in radix bupleuri, targets amyloid beta and tau in Alzheimer's disease. Saikosaponin C inhibits the secretion of both Aβ1-40 and Aβ1-42, and suppresses abnormal tau phosphorylation, but shows no effect on BACE1 activity and expression.
    Saikosaponin C (Standard)
  • HY-123469
    RS-0466
    		Inhibitor
    RS-0466, a neuroprotective compound, inhibits β-amyloid-induced cytotoxicity. RS-0466 can be used for research of Alzheimer’s disease.
    RS-0466
  • HY-150049
    γ-Secretase modulator 13
    		Inhibitor
    γ-Secretase modulator 13 (compound 4) is a gamma-secretase modulator (GSMs) that inhibits the production of the aggregated amyloid β-peptide Aβ42 with an IC50 value of 163 nM. γ-Secretase modulator 13 can be used in the study of Alzheimer's disease.
    γ-Secretase modulator 13
  • HY-155085
    hAChE-IN-3
    		Inhibitor
    hAChE-IN-3 (compounds 5c) is a potent and blood-brain barrier permeable AChE, BuChE， MAO-B-IN-1 and BACE-1 inhibitor, with IC50 values of 0.44, 0.08, 5.15 and 0.38 μM, respectively. hAChE-IN-3 has antioxidant activity and metal chelating ability. In addition, hAChE-IN-3 can bind to peripheral anion sites, and affect β amyloid and reduce Alzheimer's-associated neurodegeneration. hAChE-IN-3 has the potential for the research of Alzheimer's disease.
    hAChE-IN-3
  • HY-N0045R
    Ginsenoside Rg1 (Standard)
    		Inhibitor
    Ginsenoside Rg1 (Standard) is the analytical standard of Ginsenoside Rg1. This product is intended for research and analytical applications. Ginsenoside Rg1 is one of the major active components of Panax ginseng. Ginsenoside Rg1 ameliorates the impaired cognitive function, displays promising effects by reducing cerebral Aβ levels. Ginsenoside Rg1 also reduces NF-κB nuclear translocation.
    Ginsenoside Rg1 (Standard)
  • HY-100642S1
    3-O-Methyltolcapone-d4
    		Inhibitor
    3-O-Methyltolcapone-d4 (Ro 40-7591 d4) is a deuterium labeled 3-O-Methyltolcapone (HY-174062). 3-O-Methyltolcapone (Ro 40-7591) is a metabolite of Tolcapone (HY-17406). Tolcapone (Ro 40-7592) is a selective, potent and orally active COMT inhibitor with an IC50of 773 nM. Tolcapone can inhibits α-syn and Aβ42 oligomerization and fibrillogenesis. Tolcapone can cause oxidative stress and induce cancer cells apoptosis and ROS production. Tolcapone can be used for the researches of cancer and neurological disease, such as Parkinson disease and neuroblastoma.
    3-O-Methyltolcapone-d<sub>4</sub>
  • HY-158261
    AChE-IN-63
    		Inhibitor
    AChE-IN-63 (Compound 5AD) is a selective inhibitor of hAChE (IC50=0.103 μM). AChE-IN-63 also inhibits hBChE and hBACE-1 (IC50= 10 μM (hBChE); 1.342 μM (hBACE-1)). AChE-IN-63 inhibits Aβ aggregation, preventing the formation and deposition of Aβ1-42. AChE-IN-63 can effectively penetrate the blood-brain barrier and is orally effective. It is primarily used in Alzheimer's disease research.
    AChE-IN-63
  • HY-126047B
    (R)-(+)-Anatabine
    		Inhibitor
    (R)-(+)-Anatabine is an less active R-enantiomer of Anatabine. Anatabine is a potent α4β2 nAChR agonist. Anatabine inhibits NF-κB activation lower amyloid-β (Aβ) production by preventing the β-cleavage of amyloid precursor protein (APP). Anatabine has anti-inflammatory effects and has the potential for neurodegenerative disorders treatment.
    (R)-(+)-Anatabine
  • HY-179214
    DEL-C1
    		Inhibitor
    DEL-C1 is a CHI3L1 inhibitor. DEL-C1 can restore the ability to clear Amyloid-β and repair lysosomal function of astrocytes. DEL-C1 can inhibit NF-κB signaling and IL-6 secretion. DEL-C1 can be used for the researches of inflammation and neurological disease, such as Alzheimer's disease.
    DEL-C1
  • HY-150050
    gamma-secretase modulator 5
    		Inhibitor
    gamma-secretase modulator 5 (compound 22d) is a brain-penetrant gamma-secretase modulator (GSMs) that inhibits the production of the aggregated amyloid β-peptide Aβ42 with an IC50 value of 60 nM. gamma-secretase modulator 5 can be used in the study of Alzheimer's disease.
    gamma-secretase modulator 5
  • HY-169103
    Neuroprotective agent 5
    		Inhibitor
    Neuroprotective agent 5 (compound 28) is a brain permeabilizing agent with anti-neuritis, anti-oxidative damage and neuroprotective effects. Neuroprotective agent 5 exhibits a potent NO inhibitory effect (EC50=0.49 μM), inhibits the release of proinflammatory factors PGE2 and TNF-α, downregulates the expression of iNOS and COX-2 proteins, and promotes the polarization of BV-2 cells from the proinflammatory M1 phenotype to the anti-inflammatory M2 phenotype. In addition, Neuroprotective agent 5 can also inhibit acetylcholinesterase (AChE) activity and Aβ42 aggregation in a dose-dependent manner. Neuroprotective agent 5 can be used for the study of Alzheimer's disease.
    Neuroprotective agent 5
  • HY-P10799
    SLAFVDVLN
    		Inhibitor
    SLAFVDVLN, a molecular peptide, is a BACE-1 inhibitor with a Ki value of 94 nM. SLAFVDVLN can reduce Aβ42 production.
    SLAFVDVLN
Cat. No. Product Name / Synonyms Application Reactivity