monoamine oxidase

Monoamine oxidase, an enzyme comprising various polypeptides, catalyzes the oxidative deamination of diverse biological amines within both brain and peripheral tissues, yielding hydrogen peroxide in the process. This enzyme is crucial for regulating synaptic transmission, emotional behavior, and other cerebral functions [1] [2].

Norharmane (β-Carboline) is a natural β-carboline first isolated from plants of the Zygophyllaceae family.

Rasagiline Mesylate (AGN1135) is a novel MAO-B inhibitor, which can treat idiopathic Parkinson's disease.

Safinamide mesylate (EMD 1195686 mesylate) , a mesylate salt of Safinamide, can reversibly and specifically inhibit MAO-B (IC50: 98 nM), has 5918-fold selectivity against MAO-A.

Harmane (Loturine) is a bio-active β-Carboline and monoamine oxidase inhibitor found in coffee and tobacco smoke.

Obtusin is a natural product.

(±)-Amiflamine (2-dimethylphenethylamine) is an inhibitor of reversible MAO-A.

MAO-B-IN-24 (compound 11h) is a selective, reversible, competitive inhibitor of MAO-B with an IC50 value of 1.60 μM and an IC50 of 22.42 μM for MAO-A. At 10 μM concentration, it reduces AChE and BChE activities to 54.58% and 88.43%, respectively [1].

MAO-B-IN-19, a selective MAO-B inhibitor, exhibits neuroprotective and anti-inflammatory properties and demonstrates an IC50 value of 0.67 μM [1].

ETAP, a dual inhibitor of both monoamine oxidase A (MAO-A) and monoamine oxidase B (MAO-B), exhibits antidepressant-like effects and is utilized in the research of major depressive disorder [1].

MAO-IN-3 (Compound 5), a reversible and competitive monoamine oxidase (MAO) inhibitor with inhibition constants (K i) of 0.6 μM for MAO A and 0.2 μM for MAO B, effectively suppresses LN-229 glioblastoma cell proliferation, as denoted by an inhibitory concentration (IC50) of 0.8 μM. This compound holds potential application in cancer research [1].

Tisolagiline (KDS2010), a reversible MAO-B inhibitor, is utilized in Parkinson's disease research [1].

MAO-B-IN-18 is a potent, selective inhibitor of MAO B with IC50 values of 52 nM for hMAO B and 14 μM for hMAO A. It exhibits cytoprotective effects against hydrogen peroxide-induced damage in neuroblastoma and astrocyte cultures [1].

MAOA-IN-1 (compound 15) is an orally-active monoamine oxidase A (MAOA) inhibitor with cytotoxic effects on prostate cancer cells. It exhibits Caco-2 permeability and reduced central nervous system (CNS) permeability, indicating potential utility in anti-cancer and anti-inflammatory research [1].

MAO-B-IN-25 (compound 92) is a selective monoamine oxidase B (MAO-B) inhibitor with half-maximal inhibitory concentrations (IC50) of 240 nM for MAO-B and 0.5 nM for MAO-A [1].

Lysyl Hydroxylase 2-IN-1 (compound 12) is a selective inhibitor of lysyl hydroxylase 2 (LH2) with an IC50 of approximately 300 nM and demonstrates specificity for LH2 over LH1 and LH3 [1].

Tranylcypromine (SKF 385), a potent monoamine oxidase (MAO) inhibitor [1], is used in medicinal applications.

MAO A HSP90-IN-2 (compound 4-C), a dual inhibitor of HSP90 and MAO A, exhibits IC50 values of 0.016 μM for MAO A and 4.58 μM for HSP90. This compound enhances HSP70 expression, diminishes HER2 and phospho-Akt levels, downregulates IFN-γ-induced PD-L1 expression in GL26 cells, and demonstrates efficacy against Temozolomide-sensitive and -resistant GBM cells, colon cancer, leukemia, and non-small cell lung cancer, possibly impeding tumor immune evasion [1].

MAO-B-IN-3 is a selective, reversible inhibitor of monoamine oxidase B (MAO-B) with an IC50 of 96 nM and shows affinity for the 5-HT6 receptor with a Ki of 696 nM, making it suitable for Alzheimer's disease research [1].

MAO-B-IN-22 (compound 6h) is a potent MAO-B inhibitor with an IC50 value of 0.014 μM, exhibiting significant antioxidant activity, effective metal-chelating properties, adequate BBB permeability, and notable neuroprotective effects [1].

IHC3 is a competitive and reversible monoamine oxidase B (MAO-B) inhibitor with an IC50 of 1.672 μM, targeting Cys172 within the enzyme's active site, used in the study of neurological diseases [1].

MAO-B-IN-4 (Compound 26) is a reversible monoamine oxidase B (MAO-B) inhibitor with potent in vitro activity, characterized by an IC50 value of 9 nM. This orally active compound exhibits favorable metabolic stability, a satisfactory safety profile, and effective brain permeability. Demonstrating antidepressant effects in rodent models, MAO-B-IN-4 is suitable for research into Alzheimer's disease [1].

MAO-B-IN-27 (Compound 12c), a monoamine oxidase B (MAO-B) inhibitor, exhibits a potent and selective inhibitory effect on hMAO-B with an IC50 value of 8.9 nM, and is utilized in Parkinson's disease (PD) research [1].

Rosiridin (6'-O-Deacetylrosiridoside C) has cardioprotective activity.