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Skin permeability prediction with MD simulation sampling spatial and alchemical reaction coordinates
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Antal upphovsmän: 62022 (Engelska)Ingår i: Biophysical Journal, ISSN 0006-3495, E-ISSN 1542-0086, Vol. 121, nr 20, s. 3837-3849Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A molecular-level understanding of skin permeation may rationalize and streamline product development, and improve quality and control, of transdermal and topical drug delivery systems. It may also facilitate toxicity and safety assessment of cosmetics and skin care products. Here, we present new molecular dynamics simulation approaches that make it possible to efficiently sample the free energy and local diffusion coefficient across the skin’s barrier structure to predict skin permeability and the effects of chemical penetration enhancers. In particular, we introduce a new approach to use two-dimensional reaction coordinates in the accelerated weight histogram method, where we combine sampling along spatial coordinates with an alchemical perturbation virtual coordinate. We present predicted properties for 20 permeants, and demonstrate how our approach improves correlation with ex vivo/in vitro skin permeation data. For the compounds included in this study, the obtained log KPexp-calc mean square difference was 0.9 cm2 h−2.

Ort, förlag, år, upplaga, sidor
Biophysical Society , 2022. Vol. 121, nr 20, s. 3837-3849
Nyckelord [en]
cutaneous drug administration, metabolism, molecular dynamics, permeability, skin, skin absorption, Administration, Cutaneous, Molecular Dynamics Simulation
Nationell ämneskategori
Kemi Annan teknik
Identifikatorer
URN: urn:nbn:se:su:diva-211911DOI: 10.1016/j.bpj.2022.09.009ISI: 000928435100009PubMedID: 36104960Scopus ID: 2-s2.0-85138811844OAI: oai:DiVA.org:su-211911DiVA, id: diva2:1714569
Tillgänglig från: 2022-11-30 Skapad: 2022-11-30 Senast uppdaterad: 2024-06-11Bibliografiskt granskad

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Lindahl, Erik

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Institutionen för biokemi och biofysikScience for Life Laboratory (SciLifeLab)
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