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-N4285
    Negletein
    		Inhibitor 99.55%
    Negletein (5,6-Dihydroxy-7-methoxyflavone) is a flavone found in Scutellaria. Negletein shows anti-inflammatory activity via inhibiting TNF-α and IL-1β with IC50 values of 16.4 and 6.4 μM, respectively. Negletein can activate Nrf2 and inhibit ROS production. Negletein can enhance the neuroprotective effect of nerve growth factor. Negletein can inhibit amyloid beta-peptide release and accumulation. Negletein can inhibit pathogens biofilms formation. Negletein can be used for the researches of cancer, infection, inflammation and neurological disease, such as colon cancer and Alzheimer's disease.
    Negletein
  • HY-N2099
    Onjisaponin B
    		Inhibitor 99.31%
    Onjisaponin B is an orally active natural product derived from Polygala tenuifolia. Onjisaponin B inhibits NF-κB p65. Onjisaponin B enhances autophagy and accelerates the degradation of mutant α-synuclein and huntingtin. Onjisaponin B reduces β-amyloid (Aβ) production. Onjisaponin B reduces radiation-induced cell apoptosis. Onjisaponin B has anti-oxidant and anti-inflammatory activities. Onjisaponin B can be used for neurological disease and radiation injury study, and its metabolite tenuifolin (TF) can enter the brain through the BBB.
    Onjisaponin B
  • HY-P2550A
    β-Amyloid (1-40), FAM-labeled TFA
    		99.87%
    β-Amyloid (1-40), FAM-labeled TFA is a FAM fluorescently-labelled β-Amyloid (1-40) peptide (λex= 492 nm and λem= 518 nm).
    β-Amyloid (1-40), FAM-labeled TFA
  • HY-D0933
    Auramine O
    Auramine O is a yellow fluorescent dye. Auramine O is used to detect amyloid fibrils. Auramine O promotes lung malignancy. Auramine O is also used to determine algal cell viability and stain acid-fast bacteria.
    Auramine O
  • HY-159838
    Enrupatinib
    		Inhibitor 98.90%
    Enrupatinib (EI‐1071) is a potent, orally active, CNS-penetrant and selective CSF1R inhibitor. Enrupatinib inhibits macrophage proliferation and osteoclast differentiation in vitro. Enrupatinib preserves microglia distal to Aβ plaques. Enrupatinib mitigates Alzheimer's disease (AD)-related pathologies by reducing neuroinflammation, preserving neuronal integrity, lowering disease-associated microglia gene expression, and enhancing cognitive function in 5xFAD and J20 mouse models. Enrupatinib reduces tumor-associated macrophage infiltration and enhances antitumor activity of anti-PD-1 antibody in murine colorectal cancer and breast cancer models. Enrupatinib can be used for the research of AD, colorectal cancer, and breast cancer.
    Enrupatinib
  • HY-P0265C
    β-Amyloid (1-40), HFIP-treated TFA
    		99.27%
    β-Amyloid (1-40), HFIP-treated is a β-Amyloid (1-40) (HY-P0265A) treated with HFIP. β-Amyloid (1-40) is a primary protein in plaques found in the brains of patients with Alzheimer's disease.
    β-Amyloid (1-40), HFIP-treated TFA
  • HY-139324
    Cu(II)GTSM
    		Inhibitor
    Cu(II)GTSM, a cell-permeable Cu-complex, significantly inhibits GSK3β. Cu(II)GTSM inhibits Amyloid-β oligomers (AβOs) and decreases tau phosphorylation. Cu(II)GTSM also decreases the abundance of Amyloid-β trimers. Cu(II)GTSM is a potential anticancer and antimicrobial agent.
    Cu(II)GTSM
  • HY-N1570
    Pterosin B
    		Inhibitor 99.98%
    Pterosin B is an orally active indanone. Pterosin B can be obtained from Pteridium aquilinum. Pterosin B is a Sik3 signaling inhibitor. Pterosin B inhibits Klf5 expression and reduces β-amyloid deposition. Pterosin B prevents chondrocyte hypertrophy and osteoarthritis in mice. Pterosin B inhibits cardiomyocyte hypertrophy, improves cognitive impairment, and lowers blood glucose. Pterosin B can be used in research on arthritis, Alzheimer's disease, pathological cardiac hypertrophy and diabetes.
    Pterosin B
  • HY-125616
    Biotinoyl tripeptide-1
    		Inhibitor 99.02%
    Biotinoyl tripeptide-1 (Biotinyl-GHK) is a biotinylating reagent linked to a GHK (glycyl-L-histidyl-L-lysine) tripeptide. Biotin tripeptide-1 is a bioactive peptide with hair care (improves the appearance and feel of hair) and hair growth effects. Biotinoyl tripeptide-1 has a certain affinity for streptavidin. Biotinoyl tripeptide-1 inhibits the production of ROS and has antioxidant effects. Biotinoyl tripeptide-1 reduces the production of carbonylated amyloid-β (Aβ) and inhibits Aβ aggregation. Biotinoyl tripeptide-1 can be used in the study of neurodegenerative diseases.
    Biotinoyl tripeptide-1
  • HY-101087
    Benzenesulphonamide
    		Inhibitor 99.75%
    Benzenesulphonamide (Compound 1) is a carbonic anhydrase inhibitor. Benzenesulphonamide exhibits CA II inhibitory activity. Benzenesulphonamide reduces ROS and improves the gene expression of amyloid-β40 and 42. Benzenesulphonamide is beneficial for Alzheimer's disease. Benzenesulphonamide derivatives have anticancer, anti-inflammatory, and anticonvulsant activities. Benzenesulphonamide can be used in the research of Alzheimer's disease, epilepsy, inflammatory diseases, leukemia, melanoma, lung cancer, and colon cancer.
    Benzenesulphonamide
  • HY-34596
    4-Hydroxyindole
    		Inhibitor 98.06%
    4-Hydroxyindole is a type of hydroxyindole in which the 1H-indole at position 4 is substituted by a hydroxyl group. 4-Hydroxyindole serves as an important raw material or intermediate in the synthesis of pharmaceutical products and industrial polymers. 4-Hydroxyindole inhibits amyloid fibrillization and induces liver function impairment, thyroid abnormalities, and blood glucose fluctuations in mice. 4-Hydroxyindole holds potential for research in neurodegenerative diseases and metabolic disorders.
    4-Hydroxyindole
  • HY-126192
    Pittsburgh Compound B
    		Ligand 98.0%
    Pittsburgh Compound B (PiB) is a blood-brain barrier-permeable, specific Aβ deposition PET tracer that binds to Aβ(1-40) fibrils with a Ki value of 678.4 nM. Through click chemical modification (a clickable Pittsburgh Compound B derivative is prepared by introducing a PEG3 linker and an alkynyl group at the 6-hydroxy site of Pittsburgh Compound B, followed by covalent conjugation with azide-labeled fluorescent dyes or affinity tags via copper-catalyzed azide-alkyne cycloaddition (CuAAC)), Pittsburgh Compound B and its conjugates can be used for fluorescence imaging, ultrastructural studies, and enrichment and characterization of Aβ complexes. Pittsburgh Compound B is applicable to Alzheimer's disease research.
    Pittsburgh Compound B
  • HY-N0812
    Timosaponin BII
    		99.58%
    Timosaponin BII (Prototimosaponin A III) is a steroid saponin found in the rhizomes of Anemarrhena asphodeloides. Timosaponin BII has neuronal protective, anti-inflammatory and antioxidant activities.
    Timosaponin BII
  • HY-B1588
    Carbenoxolone
    		Inhibitor 99.99%
    Carbenoxolone is a blood-brain barrier-permeable Pannexin1 inhibitor, gap junction (Gap junction) blocker, and β-amyloid 42 inhibitor. Carbenoxolone modulates voltage-gated currents of wild-type and mutant Panx1, and inhibits stimulus-activated Panx1 channel function. Carbenoxolone interacts with stable residues of β-amyloid 42 peptides, fibrils and oligomers, thereby inhibiting their aggregation. Carbenoxolone alleviates liver fibrosis. Carbenoxolone exerts neuroprotective and nootropic effects. Carbenoxolone can be used in studies related to Alzheimer's disease and liver fibrosis.
    Carbenoxolone
  • HY-P990109
    Aducanumab (Mouse IGG2a)
    		≥99.0%
    Aducanumab (Mouse IGG2a) is a monoclonal antibody that selectively targets aggregated amyloid-beta (Aβ). The variable region of Aducanumab (Mouse IGG2a) is consistent with that of Aducanumab (HY-P9967), while the constant region is of Mouse IGG2a sequence. Aducanumab (Mouse IGG2a) has strong selectivity for Aβ fibrils with EC50s of >1 μM and 0.2 nM for monomeric Aβ1-40 and fibrillar Aβ1-42, respectively. Aducanumab (Mouse IGG2a) can be used for Alzheimer's disease (AD) research.
    Aducanumab (Mouse IGG2a)
  • HY-18292
    ARN2966
    		Inhibitor 98.78%
    ARN2966 is a potent, orally active and cross the blood-brain barrier amyloid precursor protein (APP) translation modulator.
    ARN2966
  • HY-B1786A
    (E/Z)-Sulindac sulfide
    		Inhibitor 99.88%
    (E/Z)-Sulindac sulfide is a potent γ-secretase modulator (GSM). (E/Z)-Sulindac sulfide selectively reduces Aβ42 production in favor of shorter Aβ species. (E/Z)-Sulindac sulfide can be used for researching Alzheimer’s disease.
    (E/Z)-Sulindac sulfide
  • HY-W111226
    Fmoc-His(3-Me)-OH
    		Inhibitor 99.67%
    Fmoc-His (3-Me)-OH is a histidine derivative with a methylated imidazole group. Fmoc-His (3-Me)-OH can be used for the synthesis of the chemically modified tripeptide His (3-methyl)-Arg-Trp (H (3-Me)-RW). Fmoc-His (3-Me)-OH serves as a resin in Fmoc solid-phase synthesis for the generation of the His-(3-Me)-Gly-Lys peptide. Fmoc-His (3-Me)-OH is a building block for the synthesis of NAHIS02-(p-Met). Fmoc-His (3-Me)-OH can be applied in research related to Alzheimer's disease.
    Fmoc-His(3-Me)-OH
  • HY-P5905
    Citrullinated amyloid-β (1-42) peptide (human)
    Citrullinated amyloid-β (1-42) peptide (human) (Citrullinated Aβ (1-42)) is a modified form of β-Amyloid (1-42) (HY-P1363) with a citrullination at the Arg5 site. Compared to the unmodified β-Amyloid (1-42), its formation of soluble low-molecular-weight oligomers is enhanced, the rate of fibril formation is reduced, and like unmodified Aβ42, it forms protofibrils comprised of parallel β-sheets.
    Citrullinated amyloid-β (1-42) peptide (human)
  • HY-14537
    Latrepirdine dihydrochloride
    		Inhibitor 99.65%
    Latrepirdine dihydrochloride is a neuroactive compound with antagonist activity at histaminergic, α-adrenergic, and serotonergic receptors. Latrepirdine stimulates amyloid precursor protein (APP) catabolism and amyloid-β (Aβ) secretion.
    Latrepirdine dihydrochloride
Cat. No. Product Name / Synonyms Application Reactivity