Human soluble epoxide hydrolase (hsEH) is involved in the hydrolysis of epoxyeicosatrienoic acids (EETs), which have potent anti-inflammatory properties. Given that EET conversion generates nonbioactive molecules, inhibition of this enzyme would be beneficial. Past decades of work on hsEH inhibitors resulted in numerous potential compounds, of which a hundred hsEH-ligand complexes were crystallized and deposited in the Protein Data Bank (PDB). We analyzed all deposited hsEH-ligand complexes to gain insight into the binding of inhibitors and to provide feedback on the future drug design processes. We also reviewed computationally driven strategies that were used to propose novel hsEH inhibitors.
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http://dx.doi.org/10.1016/j.drudis.2021.05.017 | DOI Listing |
Background: Although investment in biomedical and pharmaceutical research has increased significantly over the past two decades, there are no oral disease-modifying treatments for Alzheimer's disease (AD).
Method: We performed comprehensive human genetic and multi-omics data analyses to test likely causal relationship between EPHX2 (encoding soluble epoxide hydrolase [sEH]) and risk of AD. Next, we tested the effect of the oral administration of EC5026 (a first-in-class, picomolar sEH inhibitor) in a transgenic mouse model of AD-5xFAD and mechanistic pathways of EC5026 in patient induced Pluripotent Stem Cells (iPSC) derived neurons.
Background: Homozygosity for the rare APOE3-Christchurch (APOE3Ch) variant, encoding for apoE3-R136S (apoE3-Ch), was linked to resistance against an aggressive form of familial Alzheimer's disease (AD). Carrying two copies of APOE3Ch was sufficient to delay autosomal AD onset by 30 years. This remarkable protective effect makes it a strong candidate for uncovering new therapies against AD.
View Article and Find Full Text PDFBackground: Lecanemab is a humanized IgG1 monoclonal antibody that binds with high affinity to Aβ soluble protofibrils. In two clinical study evaluations of lecanemab, Clarity AD (NCT03887455) and lecanemab phase 2 study (Study 201, NCT01767311), the drug showed statistically significant reduction in disease progression during 18 months of treatment relative to placebo. Anti-amyloid immunotherapy can result in higher rates of "pseudo-atrophy" (ie, whole brain volume loss or ventricular enlargement) relative to disease progression observed in placebo-treated subjects.
View Article and Find Full Text PDFBackground: Lecanemab is an approved anti-amyloid monoclonal antibody that binds with highest affinity to soluble Aβ protofibrils, which are more toxic than monomers or insoluble fibrils/plaque. In clinical studies, biweekly lecanemab treatment demonstrated a slowing of decline in clinical (global, cognitive, functional, and quality of life) outcomes, and reduction in brain amyloid in early Alzheimer's disease (AD). Herein, we describe the impact of lecanemab treatment on tau PET.
View Article and Find Full Text PDFJ Cosmet Dermatol
January 2025
Department of Dermatology, Hangzhou Third People's Hospital, Zhejiang, Hangzhou, China.
Background: Skin pigmentation disorders may increase patients' psychological burdens. Consequently, they are increasingly attracting attention. Dermal fibroblasts have been shown to regulate pigmentation by secreting soluble factors.
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