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-P3858
    (D-Asp1)-Amyloid β-Protein (1-42)
    (D-Asp1)-Amyloid β-Protein (1-42) is a peptide fragment of amyloid β-protein (Aβ). Amyloid β-protein is the primary component of both vascular and parenchymal amyloid deposits in Alzheimer's disease.
    (D-Asp1)-Amyloid β-Protein (1-42)
  • HY-176254
    LSD1-IN-43
    		Inhibitor
    LSD1-IN-43 is a highly selective, reversible, orally active and brain-penetrant LSD1 inhibitor with an IC50 value of 0.8 μM. LSD1-IN-43 has low inhibitory activity against MAO-A and MAO-B, two homologs of LSD1. LSD1-IN-43 significantly inhibits Aβ aggregation and enhances Aβ-induced neuronal cell viability. LSD1-IN-43 can be used for the study of Alzheimer’s disease (AD).
    LSD1-IN-43
  • HY-P1468
    β-Amyloid (1-28)
    β-Amyloid (1-28) is a β-Amyloid protein fragment involved in metal binding. Beta-amyloid is a peptide that forms amyloid plaques in the brains of Alzheimer's disease (AD) patients.
    β-Amyloid (1-28)
  • HY-174381
    BChE-IN-41
    		Inhibitor
    BChE-IN-41 is a highly selective Butyrylcholinesterase (BChE) inhibitor (IC50 =12 nM, Ki = 6.6 nM). BChE-IN-41 has high brain penetration with a brain-to-plasma ratio of 9.0. BChE-IN-41 has pro-cognitive effects on mice with AD-like symptoms induced by Scopolamine (HY-N0296) and Aβ1-42.
    BChE-IN-41
  • HY-152506
    Antioxidant agent-8
    		Inhibitor
    Antioxidant agent-8 is an orally active inhibitor of Aβ1-42 deposition. Antioxidant agent-8 inhibits fibril aggregation (IC50=11.15 µM) and promotes fibril disaggregation (IC50=6.87 µM). Antioxidant agent-8 also inhibits Cu2+-induced Aβ1-42 fibril aggregation (IC50=3.69 µM) and promotes Cu2+-induced Aβ1-42 fibril disaggregation (IC50=3.35 µM). Antioxidant agent-8 has antioxidant activity, anti-inflammatory activity, biosafety, blood-brain barrier permeability and neuroprotective effect.
    Antioxidant agent-8
  • HY-152109
    AChE/MAO-IN-1
    		Inhibitor
    AChE/MAO-IN-1 (Compound D28) is a potent AChE, MAO-A and MAO-B inhibitor with IC50s of 0.0248, 0.0409 and 0.1108 μM against human AChE, MAO-B and MAO-A, respectively.
    AChE/MAO-IN-1
  • HY-P991130
    Dalidnetug
    		Ligand
    Dalidnetug is a humanized monoclonal antibody targeting human amyloid-beta precursor protein (APP). Dalidnetug specifically binds to APP to reduce the production of amyloid-beta (Aβ), thus exerting the activity of clearing amyloid-beta. Dalidnetug is promising for research of Alzheimer's disease.
    Dalidnetug
  • HY-175758
    AChE-IN-94
    		Inhibitor
    AChE-IN-94 is an orally active and blood-brain barrier penetrable AChE inhibitor with an IC50 of 0.40 μM and Ki of 0.28 μM. AChE-IN-94 prevents self-induced and AChE-mediated Aβ1-42 aggregation. AChE-IN-94 alleviates cognitive/memory deficits in Scopolamine (HY-N0296)-induced amnesic model. AChE-IN-94 can be used for the study of Alzheimer's disease (AD).
    AChE-IN-94
  • HY-155733
    AChE/Aβ-IN-1
    		Inhibitor
    AChE/Aβ-IN-1 (compound 32) is a potent and orally active inhibitor of acetylcholinesterase (AChE) with an IC50 of 86 nM, as well as an antagonist of NMDA receptor (GluN1-1b/GluN2B subunit combination) with IC50 of 3.876 μM. AChE/Aβ-IN-1 also inhibits Aβ aggregation and shows good blood-brain barrier permeability and neuroprotection. AChE/Aβ-IN-1 improves cognitive and spatial memory impairment in rats model.
    AChE/Aβ-IN-1
  • HY-N6904R
    Crocetin monomethyl ester (Standard)
    		Inhibitor
    Crocetin monomethyl ester (Standard) is the analytical standard of Crocetin monomethyl ester. This product is intended for research and analytical applications. Crocetin monomethyl ester, isolated from Crocus sativus, possesses anti-inflammatory, neuroprotective and antioxidant activity. Crocetin monomethyl ester promotes clearance of amyloid-β by inducing autophagy via the STK11/LKB1-mediated AMPK pathway.
    Crocetin monomethyl ester (Standard)
  • HY-P2285
    AC 253
    		Antagonist
    AC 253, an amylin antagonist, inhibits 125I-adrenomedullin binding, with an IC50 of 25 nM.
    AC 253
  • HY-144389
    hAChE/Aβ1-42-IN-1
    		Inhibitor
    hAChE/Aβ1-42-IN-1 (Compound 16) is a potent inhibitor of hAChE and Aβ1-42 aggregation. hAChE/Aβ1-42-IN-1 shows acceptable relative safety upon hepG2 cell line and excellent BBB penetration with wide safety margin. hAChE/Aβ1-42-IN-1 has the potential for the research of Alzheimer disease (AD).
    hAChE/Aβ1-42-IN-1
  • HY-B0949A
    Protriptyline
    		Inhibitor
    Protriptyline is a potent tricyclic antidepressant (TCA). Protriptyline inhibits AChE activity with an IC50 value of 0.06 mM and inhibits Aβ self-assembly. Protriptyline can be used for the study of depression and Alzheimers disease.
    Protriptyline
  • HY-161725
    TFEB activator 3
    		Inhibitor
    TFEB activator 3 (compound 45) exhibits TFEB activation and lysosome biogenesis capabilities. TFEB activator 3 has effect on TFEB nuclear translocation with 44% (10μM 3h) and 97 % (30 μM 3h). TFEB activator 3 plays an important role in Alzheimer’s disease (AD). TFEB activator 3 can pass blodd brain barrier.
    TFEB activator 3
  • HY-P4892
    Amyloid β-Protein (4-42)
    Amyloid β-Protein (4-42) is aAβ Fragment.
    Amyloid β-Protein (4-42)
  • HY-167898
    MeS-IMPY
    MeS-IMPY is a ligand of β-amyloid plaques. MeS-IMPY shows a high binding affinity to β-amyloid plaques extracted from Alzheimer's disease (AD) human brains or AD brain homogenates compared to IMPY (Ki=7.93 and 8.95 nM, respectively). [11C]MeS-IMPY is a potential radioligand for imaging β-amyloid plaques with positron emission tomography (PET).
    MeS-IMPY
  • HY-157440
    AChE/Aβ-IN-3
    		Inhibitor
    AChE/Aβ-IN-3 (compound AM5) is a dual inhibitor of AChE and Amyloid-β aggregation with IC50<.sub> values of 1.29 and 4.93 μM, respectively. AChE/Aβ-IN-3 has antioxidant properties that scavenge ROS and restore their normal levels. AChE/Aβ-IN-3 can be used in the study of neurological diseases, such as Alzheimer's disease.
    AChE/Aβ-IN-3
  • HY-161658
    N-Caffeoyldopamine
    		Inhibitor
    N-Caffeoyldopamine (Compound 6i) is an amyloid-beta aggregation inhibitor. N-Caffeoyldopamine can inhibit Aβ aggregation to form nano-rod-like structures, thereby preventing β-sheet formation. N-Caffeoyldopamine can be used for Alzheimer's disease research.
    N-Caffeoyldopamine
  • HY-W748591R
    Cannflavin A (Standard)
    		Inhibitor
    Cannflavin A (Standard) is the analytical standard of Cannflavin A. This product is intended for research and analytical applications. Cannflavin A can be isolated from Cannabis sativa L.. Cannflavin A has anti-cancer, neuroprotective and anti-inflammatory activity. Cannflavin A inhibits Aβ1-42 aggregation. Cannflavin A also inhibits kynurenine-3-monooxygenase (KMO) (IC50 = 29.4 μM). Cannflavin A activates apoptosis via caspase-3 cleavage. Cannflavin A exerts anti-inflammatory effects by inhibiting pro-inflammatory enzymes, including prostaglandin E2 and cytochrome c oxidases I and II in PC12 cell line.
    Cannflavin A (Standard)
  • HY-P1867
    β-Amyloid (1-34)
    β-Amyloid (1-34) is a β-Amyloid peptide consists of 34 amino acid.
    β-Amyloid (1-34)
Cat. No. Product Name / Synonyms Application Reactivity