Journal
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
Volume 27, Issue 1, Pages 45-58Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jmgm.2008.02.003
Keywords
Peroxisome proliferator-activated receptor; Phthalate esters; Molecular simulations; Molecular mechanics method; Molecular orbital method; Electronic properties; Ligand binding affinity
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Funding
- CASIO Science Promotion Foundation
- Kayamori Foundation of Informational Science Advancement
- Toukai Foundation for Technology
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Peroxisome proliferator-activated receptor (PPAR alpha) has various physiological functions Such as lipid and glucose metabolism, inflammation and fibrosis in living organisms. Many types of ligand molecules such as phthalate and adipate esters control these physiological functions. In the present Study, to elucidate the dependence of PPAR alpha properties on ligand binding, we investigated stable structures and electronic properties for the complexes of PPAR alpha and phthalate as well as adipate esters, which are used as a plasticizer, by Molecular simulations based on molecular mechanics and molecular orbital methods. Furthermore, to elucidate the influence of these esters in vivo, we injected them into male mice and observed the change in the expression of PPAR alpha-related enzymes. The comparison between the calculated and observed results indicates that the change in the expression has a correlation with the size of energy gaps between highest occupied and lowest unoccupied molecular orbitals of the complexes with mouse PPAR alpha and esters. (C) 2008 Elsevier Inc. All rights reserved.
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