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-P4878
    5-TAMRA-Amyloid β-Protein (1-40)
    5-TAMRA-Amyloid β-Protein (1-40) is a fluorescent (TAMRA)-labeled Amyloid β-Protein (1-40), Abs/Em=544/572 nm.
    5-TAMRA-Amyloid β-Protein (1-40)
  • HY-144752
    cSPM
    cSPM (Cyclic spermine) is a Aβ42 inhibitor. cSPM could suppress the aggregation of three different peptides, Aβ42, amylin and insulin, and decreases cytotoxicity.
    cSPM
  • HY-181041
    Multitarget AD-IN-5
    		Inhibitor
    Multitarget AD-IN-5 (Compound 20), 9-Aminoacridine (HY-B1422) derivative, is a neuroprotective agent. Multitarget AD-IN-5 shows IC50 values of 0.614, 0.448, 3.73 and 1.55 μM for hAChE, hBChE, hMAO-A and hMAO-B. Multitarget AD-IN-5 can reduce length and diameter of Aβ42 fibers, and decrease the number of fibers per unit area. Multitarget AD-IN-5 can be used for research of Alzheimer's disease.
    Multitarget AD-IN-5
  • HY-149211
    AChE/BChE-IN-12
    		Inhibitor
    AChE/BChE-IN-12 (compound 10b), a 3,5-dimethoxy analogue, is a potent AChE, BChE, and β-secretase-1 (BACE-1) inhibitor, with IC50 values of 2.57, 3.26, and 10.65 μM, respectively. AChE/BChE-IN-12 crosses the blood-brain barrier via passive diffusion and inhibits the self-aggregation of amyloid-β monomers. AChE/BChE-IN-12 can be used for Alzheimer’s disease (AD) research.
    AChE/BChE-IN-12
  • HY-182328
    BTA-EG6
    BTA-EG6 is a brain-penetrant aggregated amyloid-β (Aβ) peptide binder with a Kd of 290 nM for Aβ1-42. BTA-EG6 binds to aggregated Aβ and forms protein-resistive coatings that block interactions between Aβ and catalase. BTA-EG6 protects neuroblastoma cells from Aβ-induced toxicity and oxidative stress, and inhibits Aβ-induced increases in cellular hydrogen peroxide (H2O2) levels. BTA-EG6 can be used for the research of alzheimer’s disease (AD).
    BTA-EG6
  • HY-173282
    Aβ aggregation-IN-2
    		Inhibitor
    Aβ aggregation-IN-2 (Compound 8i) is an inhibitor of amyloid-β protein (Aβ42) aggregation, showing approximately 91% inhibition of Aβ42 aggregation at 25 μM. It also exhibits Aβ42 disaggregation effects and antioxidant activity. Aβ aggregation-IN-2 can be used for research in the field of Alzheimer's disease.
    Aβ aggregation-IN-2
  • HY-108010
    Aftobetin
    Aftobetin is a non-invasive molecular probe used for the early diagnosis of Alzheimer's disease (AD). Aftobetin can specifically bind to the aggregated β-amyloid peptide (Aβ) in the lens of the eye, enabling the early diagnosis of AD through a rapid and painless detection method.
    Aftobetin
  • HY-P1510
    β-Amyloid (1-11)
    β-Amyloid (1-11) is a fragment of Amyloid-β peptide, maybe used in the research of neurological disease.
    β-Amyloid (1-11)
  • HY-18157
    SCH 900229
    SCH 900229 is a potent γ-secretase inhibitor with selective activity against PS1. The Aβ40 IC50 value of SCH 900229 is 1.3 nM, showing its excellent ability in reducing Aβ. SCH 900229 has shown good Aβ-lowering effects after oral administration in preclinical animal models. SCH 900229 has been advanced to human clinical trials for further development of compounds for the inhibition of Alzheimer's disease.
    SCH 900229
  • HY-161512
    hAChE/hBACE-1-IN-4
    		Inhibitor
    hAChE/hBACE-1-IN-4 (compound AK-2) is a quinazoline derivative. hAChE/hBACE-1-IN-4 shows significant inhibitory activity against hAChE and hBACE-1 enzymes (hAChE, IC50=0.283 μM; hBACE-1, IC50=0.231 μM). hAChE/hBACE-1-IN-4 has the potential to inhibit Aβ aggregation. hAChE/hBACE-1-IN-4 has non-neurotoxicity , blood-brain barrier permeability and oral activity. hAChE/hBACE-1-IN-4 can be used in Alzheimer's disease research.
    hAChE/hBACE-1-IN-4
  • HY-146619
    RAGE/SERT-IN-1
    		Inhibitor
    RAGE/SERT-IN-1 is a potent and orally active advanced glycation end products (RAGE) and serotonin transporter (SERT) inhibitor with IC50s of 8.26 μM and 31.09 nM, respectively. RAGE/SERT-IN-1 exhibits significant neuroprotective effect against Aβ25-35-induced neuronal damage and alleviates depressive behavior of mice. RAGE/SERT-IN-1 can be used for researching the comorbidity of Alzheimer's disease and depression.
    RAGE/SERT-IN-1
  • HY-B0949R
    Protriptyline hydrochloride (Standard)
    		Inhibitor
    Protriptyline hydrochloride (Standard) is the analytical standard of Protriptyline hydrochloride (HY-B0949). This product is intended for research and analytical applications. Protriptyline hydrochloride is a potent tricyclic antidepressant (TCA). Protriptyline hydrochloride inhibits AChE activity with an IC50 value of 0.06 mM and inhibits Aβ self-assembly. Protriptyline hydrochloride can be used for the study of depression and Alzheimers disease.
    Protriptyline hydrochloride (Standard)
  • HY-P10578
    SEN 304
    		Inhibitor
    SEN 304 is an Aβ aggregation inhibitor. SEN 304 can bind directly to Aβ(1-42), delay β-sheet formation and promote aggregation of toxic oligomers into a nontoxic form. SEN 304 can be used for research of Alzheimer’s disease.
    SEN 304
  • HY-112270
    Glutaminyl Cyclase Inhibitor 2
    		Inhibitor
    Glutaminyl Cyclase Inhibitor 2 is a glutaminyl cyclase inhibitor with an IC50 of 1.23 μM.
    Glutaminyl Cyclase Inhibitor 2
  • HY-W098905
    GSK3β-IN-3
    		Inhibitor
    GSK3β-IN-3 is an ATP-competitive GSK-3β inhibitor (IC50 = 0.90 μM). GSK3β-IN-3 can reduce the phosphorylation level of tau protein in the BR5706 strain and reduce the deposition of Aβ aggregates in the CL2006 strain, and can be used to research Alzheimer's disease (AD).
    GSK3β-IN-3
  • HY-147938
    AChE-IN-19
    		Inhibitor
    AChE-IN-19 (compound A15) is a highly potent AChE inhibitor with an IC50 value of 0.56 μM, also inhibits Aβ aggregation. AChE-IN-19 has potent neuroprotective activities and nearly no toxicity on SH-SY5Y cells. AChE-IN-19 can be used for researching Alzheimer's disease.
    AChE-IN-19
  • HY-D3220
    PTO-41
    		Ligand
    PTO-41 is a blood-brain barrier-permeable near-infrared fluorescent probe that targets β-amyloid oligomers (Aβ Oligomers, AβOs) with a Kd of 349 nM. PTO-41 exhibits low cytotoxicity, high sensitivity to β-amyloid oligomers in in vitro phantom imaging, and can be rapidly cleared from the brain. PTO-41 is applicable to the research of Alzheimer's disease (Ex/Em = 538 nM/680 nM).
    PTO-41
  • HY-N12360R
    2,3-Dehydrosilybin A (Standard)
    		Inhibitor
    2,3-Dehydrosilybin A (Standard) is the analytical standard of 2,3-Dehydrosilybin A. This product is intended for research and analytical applications. 2,3-Dehydrosilybin A is a pro-longevity and anti-aggregation compound.
    2,3-Dehydrosilybin A (Standard)
  • HY-P10935
    Amilo-5MER
    		Inhibitor
    Amilo-5MER (5-MP) is an orally active and selective Serum Amyloid A (SAA) inhibitor. Amilo-5MER specifically inhibits the release of pro-inflammatory cytokines IL-6 and IL-1β from SAA-activated cells. Amilo-5MER reduces chronic inflammation and relieves symptoms of diseases such as rheumatoid arthritis (RA), inflammatory bowel disease (IBD), and multiple sclerosis (MS). Amilo-5MER is promising for research of autoimmune diseases and chronic inflammatory diseases.
    Amilo-5MER
  • HY-179621
    EQ-04
    		Inhibitor
    EQ-04 is a highly selective positive allosteric modulator (PAM) of α7 nAChR. EQ-04 has no direct inhibitory activity on AChE and BChE. EQ-04 inhibits Aβ aggregation. EQ-04 has safe cytotoxicity and potent neuroprotective activity. EQ-04 can be used for the study of Alzheimer's disease.
    EQ-04
Cat. No. Product Name / Synonyms Application Reactivity