Novel skin permeation enhancers based on amino acid ester ionic liquid: Design and permeation mechanism
作者:Luyao Zheng、Zhiyuan Zhao、Ye Yang、Yaming Li、Chengxiao Wang
DOI:10.1016/j.ijpharm.2020.119031
日期:2020.2
based on amino acids. We first screened 15 methyl amino acidesterhydrochlorides ([AAC1]Cl) for their skin permeation enhancements using 5-Fluorouracil (5-Fu) and Hydrocortisone (HC) as model drugs. Glycine methyl esterhydrochloride ([GlyC1]Cl), L-proline methyl esterhydrochloride ([L-ProC1]Cl), and L-leucine methyl esterhydrochloride ([L-LeuC1]Cl) were selected, and their ester sites were modified
Serine palmitoyltransferase (SPT) plays the key role on catalysing the formation of 3-ketodihydrosphingosine, which is the first step of the de novo biosynthesis of sphingolipids. SPT is linked to many diseases including fungal infection, making it a potential therapeutic target. Thus, a logical docking-based virtual screening method was used to screen selective SPT inhibitor against fungi, not human. We used myriocin-similarity database to identify compounds with good binding with fungal SPT and poor binding with homology human SPT model. Preliminary bio-assay led to the discovery of a promising inhibitor WXP-003, which displayed good inhibitory activity against diversity fungi strains with MIC ranging from 0.78 to 12.5 μg/mL. WXP-003 could significantly reduce sphingolipids content in fungi and no effect on mouse fibroblast cell line L929. Molecular dynamics simulation depicted that SPT/WXP-003 complex formed the favoured interactions. Taken together, discovery of WXP-003 provided valuable guide for the development of novel anti-fungal agents.