Amyloid-β

CHF5022 is an inhibitor of Aβ42 secretion, exhibiting an IC50 value of 92 μM. In addition to its primary activity, CHF5022 demonstrates modest inhibition of Aβ40 at non-cytotoxic concentrations, achieving a reduction of approximately 22.2% at 100 μM. This compound is valuable for research into Alzheimer's disease and the mechanisms of amyloid-beta peptide regulation.

Kayaflavone is a biflavonoid of the amentoflavone type known for its inhibitory activity against amyloid-β42 cytotoxicity in PC-12 cells, exhibiting an EC50 value of 5.29 μM. This compound holds potential for research applications in Alzheimer’s disease, contributing to the understanding of amyloid-related neurotoxicity and its implications in neurodegenerative processes.

Azeliragon dihydrochloride is a selective inhibitor of the receptor for advanced glycation end products (RAGE). This compound demonstrates the ability to cross the blood-brain barrier and has been investigated for its potential to mitigate disease progression in patients with mild Alzheimer's disease. Its mechanism of action involves reducing neuroinflammation and promoting neuronal health, making it a promising candidate for research focused on Alzheimer's disease therapeutics.

TDI-2760 is an Aβ aggregation inhibitor with an IC50 of 1.67 μM, specifically targeting the aggregation of amyloid-beta peptides. This compound effectively inhibits Aβ-fibrinogen interactions and modulates contact system activation induced by Aβ42. TDI-2760 is suitable for research focused on Alzheimer's disease, particularly in the study of vascular abnormalities associated with Aβ aggregation.

NB-360 is a potent dual inhibitor of β-secretase 1 and 2 (BACE1/BACE2) with IC50 values of 5 nM and 6 nM, respectively. This compound is brain-penetrable and orally active, effectively inhibiting the accumulation of amyloid-β proteins. NB-360 is valuable for research in inflammation and neurological diseases, particularly Alzheimer's disease.

4-Hydroxyindole is an amyloid inhibitor that plays a critical role in the disruption of amyloid fibrillization. This compound has been shown to induce alterations in liver function, thyroid activity, and blood glucose levels in preclinical models. Its unique properties make 4-Hydroxyindole a valuable tool for investigating neurodegenerative diseases and metabolic disorders. Researchers can leverage its potential to explore therapeutic avenues for amyloid-related pathologies.

ACI-19626 is a TDP-43 inhibitor that targets TDP-43 aggregation. This compound is valuable for investigating the role of TDP-43 in neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Its utility in preclinical studies helps elucidate the molecular mechanisms underlying these conditions and aids in the identification of potential therapeutic strategies.

QP5038 is a specific inhibitor of the enzyme QPCTL, exhibiting an IC50 value of 3.8 nM. This compound demonstrates significant antitumor activity, making it a valuable tool for research in cancer biology. QP5038 can be utilized in studies focused on understanding the role of QPCTL in tumor metabolism and potential therapeutic strategies.

PBD-150 is a selective inhibitor of human glutaminyl cyclase (hQC), specifically targeting the Y115E-Y117E variant with a Ki value of 490 nM. This compound exhibits significant inhibitory activity, making it a valuable tool for studying the role of glutaminyl cyclase in neurodegenerative diseases. PBD-150 can be applied in research focused on pathologies associated with abnormal protein aggregation and its therapeutic potential.

D-KLVFFA is a potent inhibitor of Amyloid-β assembly, exhibiting an IC50 value of 2.6 μM. This peptide is utilized in research focused on Alzheimer's disease, providing insights into the mechanisms of amyloid plaque formation and potential therapeutic interventions. Its application can contribute to the understanding of neurodegenerative processes and the development of Alzheimer’s disease treatments.

Aβ/tau aggregation-IN-1 is a selective inhibitor of amyloid-beta (Aβ1-42) β-sheet formation and tau protein aggregation. With KD values of 160 μM for Aβ1-42 and 337 μM for tau, this compound demonstrates significant potential in research related to neurodegenerative disorders such as Alzheimer's disease. Its ability to cross the blood-brain barrier further supports its use in studies aimed at understanding the pathophysiology of amyloid and tau accumulation in the central nervous system.

DN5355 is a small molecule inhibitor of amyloid β protein (Aβ) and hyperphosphorylated tau protein aggregation. It effectively inhibits the formation of Aβ and tau fibrils while also promoting the disaggregation of pre-formed aggregates. This compound is valuable for research applications focused on Alzheimer's disease and the underlying mechanisms of protein aggregation associated with neurodegeneration.

Biphenyl-3′,3,4,4′-tetrol (BPT) is a potent inhibitor of Aβ40 aggregation, targeting the aggregation process associated with amyloid-beta peptides. This compound is relevant for research into neurodegenerative diseases, particularly Alzheimer's disease, by facilitating studies aimed at understanding and potentially mitigating the pathological effects of amyloid plaque formation.

Semilicoisoflavone B is an isoflavone derived from Glycyrrhiza uralensis Fisch, functioning primarily as an inhibitor of amyloid-β (Aβ) secretion. It reduces Aβ levels by inhibiting the expression and activity of β-secretase-1 (BACE1). This compound enhances PPARγ expression while simultaneously inhibiting STAT3 phosphorylation, leading to decreased BACE1 levels. Semilicoisoflavone B is relevant for research into Alzheimer's disease and mechanisms of neurodegeneration.

Aβ aggregation-IN-1 is a selective inhibitor of amyloid-beta aggregation, effectively targeting the fibrillogenesis process. It demonstrates significant biological activity with IC50 values of 3.92 µM for aggregation and 7.19 µM for disaggregation. Additionally, Aβ aggregation-IN-1 inhibits malondialdehyde formation, enhances intracellular reduced glutathione levels, and reduces caspase 3 activity in neuronal cells. This compound is valuable for research in Alzheimer's disease and related neurodegenerative disorders.

RI-OR2-TAT is a potent inhibitor of β-Amyloid oligomerization, enhanced by the incorporation of the HIV protein transduction domain TAT. This compound exhibits a binding affinity to Aβ42 fibrils with a Kd value ranging from 58 to 125 nM. RI-OR2-TAT effectively reduces Aβ aggregation and plaque formation, mitigates microglial activation and oxidative stress, and promotes neurogenesis by increasing the proliferation of young neurons in the dentate gyrus. It is a valuable tool for research focused on neurodegenerative diseases, particularly Alzheimer's disease.

QR-0217 is a potent inhibitor of Aβ1-40 aggregation, exhibiting an IC50 value of 7.5 µM. This compound also demonstrates the ability to inhibit α-synuclein aggregation, making it useful in studies related to neurodegenerative diseases. Additionally, QR-0217 has been shown to mitigate memory impairments associated with Aβ neurotoxicity, providing a valuable tool for research on Alzheimer's disease and related conditions.

2-Hydroxy-5-(phenyldiazenyl)benzoic acid-d5 is a deuterated derivative of 2-Hydroxy-5-(phenyldiazenyl)benzoic acid that primarily targets amyloid-β. This compound exhibits significant inhibitory activity against amyloid-β aggregation, making it valuable for research related to Alzheimer's disease and other neurodegenerative disorders. It serves as a useful tool for investigating the mechanisms of amyloid pathology and potential therapeutic strategies.

Aβ1–42 aggregation inhibitor 2 is a potent inhibitor of Aβ1-42 aggregation, which is significant in the study of Alzheimer's disease. This compound demonstrates strong antioxidant properties, effectively chelates metal ions, and alleviates oxidative stress. Additionally, it exhibits neuroprotective and anti-neuroinflammatory activities, making it a valuable tool for research focused on neurodegenerative disorders and potential therapeutic interventions.

CTS-21166 is a selective inhibitor of β-site amyloid precursor protein cleaving enzyme 1 (BACE1), designed to penetrate the blood-brain barrier effectively. It demonstrates the ability to reduce levels of amyloid-beta (Aβ) in the brain, making it a valuable tool for studying the pathogenesis of Alzheimer's disease. CTS-21166 is suitable for use in both in vitro and in vivo research applications focused on Alzheimer's and related neurodegenerative disorders.

YIAD-0205 is an orally bioavailable inhibitor of amyloid-β (Aβ) aggregation, specifically targeting Aβ(1-42). This compound exhibits significant in vivo efficacy in a transgenic mouse model of Alzheimer's disease carrying five familial mutations (5XFAD). Its application lies in Alzheimer's research, particularly in studies exploring therapeutic strategies aimed at mitigating Aβ-related neurodegeneration.

Aβ-IN-3 is a potent inhibitor of amyloid β (Aβ) aggregation, specifically targeting Aβ42. This compound effectively inhibits the aggregation of Aβ42, making it a valuable tool in the study of amyloid-related pathologies. However, Aβ-IN-3 does not mitigate the neurotoxicity associated with Aβ42 in SH-SY5Y cells, nor does it alter the aggregation state of Aβ42 into a non-toxic form. Its primary applications lie in research focused on Alzheimer's disease and amyloid aggregation mechanisms.

PPI-1019 is an amyloid beta (Aβ) inhibitor that specifically targets the aggregation of Aβ peptides. This compound demonstrates potential neuroprotective effects, making it a valuable tool for researching neurodegenerative disorders, particularly Alzheimer's disease. Its role in modulating Aβ-related toxicity makes PPI-1019 significant for studies aimed at understanding the pathophysiology of amyloid plaque formation and developing therapeutic strategies.

Aβ-IN-6 is an Aβ oligomers formation inhibitor that effectively reduces pro-inflammatory cytokine release from microglia. This compound significantly promotes Nrf2 nuclear translocation, thereby interfering with the aggregation of Aβ oligomers. Aβ-IN-6 offers neuroprotective effects through modulation of redox-sensitive signaling pathways in in vivo oxidative stress models. Its oral bioactivity and combined anti-inflammatory, antioxidant, and anti-oligomeric properties make Aβ-IN-6 a valuable reagent for research into Alzheimer's disease.

Dihydroergocristine mesylate is a potent inhibitor of γ-secretase, targeting the enzyme responsible for the generation of amyloid-β peptides implicated in Alzheimer’s disease. It effectively reduces the production of these peptides by binding directly to γ-secretase and Nicastrin, exhibiting equilibrium dissociation constants (Kd) of 25.7 nM and 9.8 μM, respectively. This compound can be utilized in research aimed at unraveling the mechanisms of Alzheimer’s pathology and developing potential therapeutic strategies.