Abstract
Vitamin-D deficiency is a global concern. Gene mutations in the vitamin D receptor’s (VDR) ligand binding domain (LBD) variously alter the ligand binding affinity, heterodimerization with retinoid X receptor (RXR) and inhibit coactivator interactions. These LBD mutations may result in partial or total hormone unresponsiveness. A plethora of evidence reports that selective long chain polyunsaturated fatty acids (PUFAs), including eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and arachidonic acid (AA) bind to the ligand-binding domain of VDR and lead to transcriptional activation. We, therefore, hypothesize that selective PUFAs would modulate the dynamics and kinetics of VDRs, irrespective of the deficiency of vitamin-D. The spatial arrangements of the selected PUFAs in VDR active site were examined by in-silico docking studies. The docking results revealed that PUFAs have fatty acid structure-specific binding affinity towards VDR. The calculated EPA, DHA & AA binding energies (Cdocker energy) were lesser compared to vitamin-D in wild type of VDR (PDB id: 2ZLC). Of note, the DHA has higher binding interactions to the mutated VDR (PDB id: 3VT7) when compared to the standard Vitamin-D. Molecular dynamic simulation was utilized to confirm the stability of potential compound binding of DHA with mutated VDR complex. These findings suggest the unique roles of PUFAs in VDR activation and may offer alternate strategy to circumvent vitamin-D deficiency.
Keywords: Vitamin D, Eicosapentaenoic acid, Docosahexaenoic acid, arachidonic acid, Vitamin-D receptor, Type 2 diabetes mellitus.
Mini-Reviews in Medicinal Chemistry
Title:Distinct Modulation of Wild-Type and Selective Gene Mutated Vitamin D Receptor by Essential Polyunsaturated Fatty Acids
Volume: 21 Issue: 17
Author(s): Hari Balaji, A. Selvaraj, Niladri Saha, P. Shyam Sundar, S. Jubie and Suresh K. Mohankumar*
Affiliation:
- TIFAC CORE in Herbal Drugs, Department of Pharmacognosy, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Ooty, Nilgiris, Tamil nadu,India
Keywords: Vitamin D, Eicosapentaenoic acid, Docosahexaenoic acid, arachidonic acid, Vitamin-D receptor, Type 2 diabetes mellitus.
Abstract: Vitamin-D deficiency is a global concern. Gene mutations in the vitamin D receptor’s (VDR) ligand binding domain (LBD) variously alter the ligand binding affinity, heterodimerization with retinoid X receptor (RXR) and inhibit coactivator interactions. These LBD mutations may result in partial or total hormone unresponsiveness. A plethora of evidence reports that selective long chain polyunsaturated fatty acids (PUFAs), including eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and arachidonic acid (AA) bind to the ligand-binding domain of VDR and lead to transcriptional activation. We, therefore, hypothesize that selective PUFAs would modulate the dynamics and kinetics of VDRs, irrespective of the deficiency of vitamin-D. The spatial arrangements of the selected PUFAs in VDR active site were examined by in-silico docking studies. The docking results revealed that PUFAs have fatty acid structure-specific binding affinity towards VDR. The calculated EPA, DHA & AA binding energies (Cdocker energy) were lesser compared to vitamin-D in wild type of VDR (PDB id: 2ZLC). Of note, the DHA has higher binding interactions to the mutated VDR (PDB id: 3VT7) when compared to the standard Vitamin-D. Molecular dynamic simulation was utilized to confirm the stability of potential compound binding of DHA with mutated VDR complex. These findings suggest the unique roles of PUFAs in VDR activation and may offer alternate strategy to circumvent vitamin-D deficiency.
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Cite this article as:
Balaji Hari , Selvaraj A. , Saha Niladri, Sundar Shyam P., Jubie S. and Mohankumar K. Suresh *, Distinct Modulation of Wild-Type and Selective Gene Mutated Vitamin D Receptor by Essential Polyunsaturated Fatty Acids, Mini-Reviews in Medicinal Chemistry 2021; 21 (17) . https://dx.doi.org/10.2174/1389557521666210104170408
DOI https://dx.doi.org/10.2174/1389557521666210104170408 |
Print ISSN 1389-5575 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5607 |
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