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Vitamin D and lumisterol novel metabolites can inhibit SARS-CoV-2 replication machinery enzymes

Qayyum et al., Endocrinology and Metabolism, doi:10.1152/ajpendo.00174.2021

Jul 2021

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In Silico analysis showing that vitamin D and lumisterol metabolites may inhibit SARS-CoV-2 M^pro and RdRP.

12 preclinical studies support the efficacy of vitamin D for COVID-19:

6 In Silico studies Al-Mazaideh, Chellasamy, Mansouri, Pandya, Qayyum, Song

5 In Vitro studies DiGuilio, Mok, Pickard, Rybakovsky, Sposito

1 In Vivo animal study Fernandes de Souza

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1. Al-Mazaideh et al., Vitamin D is a New Promising Inhibitor to the Main Protease (Mpro) of COVID-19 by Molecular Docking, Journal of Pharmaceutical Research International, doi:10.9734/jpri/2021/v33i29B31603.journaljpri.com, doi.org.

2. Chellasamy et al., Docking and molecular dynamics studies of human ezrin protein with a modelled SARS-CoV-2 endodomain and their interaction with potential invasion inhibitors, Journal of King Saud University - Science, doi:10.1016/j.jksus.2022.102277.sciencedirect.com, doi.org.

3. DiGuilio et al., The multiphasic TNF-α-induced compromise of Calu-3 airway epithelial barrier function, Experimental Lung Research, doi:10.1080/01902148.2023.2193637.tandfonline.com, doi.org.

4. Fernandes de Souza et al., Lung Inflammation Induced by Inactivated SARS-CoV-2 in C57BL/6 Female Mice Is Controlled by Intranasal Instillation of Vitamin D, Cells, doi:10.3390/cells12071092.mdpi.com, doi.org.

5. Mansouri et al., The impact of calcitriol and estradiol on the SARS-CoV-2 biological activity: a molecular modeling approach, Scientific Reports, doi:10.1038/s41598-022-04778-y.nature.com, doi.org.

6. Mok et al., Calcitriol, the active form of vitamin D, is a promising candidate for COVID-19 prophylaxis, bioRxiv, doi:10.1101/2020.06.21.162396.biorxiv.org, doi.org.

7. Pandya et al., Unravelling Vitamin B12 as a potential inhibitor against SARS-CoV-2: A computational approach, Informatics in Medicine Unlocked, doi:10.1016/j.imu.2022.100951.sciencedirect.com, doi.org.

8. Pickard et al., Discovery of re-purposed drugs that slow SARS-CoV-2 replication in human cells, PLOS Pathogens, doi:10.1371/journal.ppat.1009840.plos.org, doi.org.

9. Qayyum et al., Vitamin D and lumisterol novel metabolites can inhibit SARS-CoV-2 replication machinery enzymes, Endocrinology and Metabolism, doi:10.1152/ajpendo.00174.2021.physiology.org, doi.org.

10. Rybakovsky et al., Calcitriol modifies tight junctions, improves barrier function, and reduces TNF‐α‐induced barrier leak in the human lung‐derived epithelial cell culture model, 16HBE 14o‐, Physiological Reports, doi:10.14814/phy2.15592.wiley.com, doi.org.

11. Song et al., Vitamin D3 and its hydroxyderivatives as promising drugs against COVID-19: a computational study, Journal of Biomolecular Structure and Dynamics, doi:10.1080/07391102.2021.1964601.tandfonline.com, doi.org.

12. Sposito et al., Age differential CD13 and interferon expression in airway epithelia affect SARS-CoV-2 infection - effects of vitamin D, Mucosal Immunology, doi:10.1016/j.mucimm.2023.08.002.nih.gov, doi.org.

Qayyum et al., 27 Jul 2021, peer-reviewed, 7 authors.

In Silico studies are an important part of preclinical research, however results may be very different in vivo.

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Vitamin D and lumisterol novel metabolites can inhibit SARS-CoV-2 replication machinery enzymes

Shariq Qayyum, Taj Mohammad, Radomir M Slominski, Md Imtaiyaz Hassan, Robert C Tuckey, Chander Raman, Andrzej T Slominski

American Journal of Physiology-Endocrinology and Metabolism, doi:10.1152/ajpendo.00174.2021

Vitamin D deficiency significantly correlates with the severity of SARS-CoV-2 infection. Molecular docking-based virtual screening studies predict that novel vitamin D and related lumisterol hydroxymetabolites are able to bind to the active sites of two SARS-CoV-2 transcription machinery enzymes with high affinity. These enzymes are the main protease (M pro ) and RNA-dependent RNA polymerase (RdRP), which play important roles in viral replication and establishing infection. Based on predicted binding affinities and specific interactions, we identified 10 vitamin D3 (D3) and lumisterol (L3) analogs as likely binding partners of SARS-CoV-2 M pro and RdRP and, therefore, tested their ability to inhibit these enzymes. Activity measurements demonstrated that 25 (OH)L3, 24(OH)L3, and 20(OH)7DHC are the most effective of the hydroxymetabolites tested at inhibiting the activity of SARS-CoV-2 M pro causing 10%-19% inhibition. These same derivatives as well as other hydroxylumisterols and hydroxyvitamin D3 metabolites inhibited RdRP by 50%-60%. Thus, inhibition of these enzymes by vitamin D and lumisterol metabolites may provide a novel approach to hindering the SARS-CoV-2 infection. NEW & NOTEWORTHY Active forms of vitamin D and lumisterol can inhibit SARS-CoV-2 replication machinery enzymes, which indicates that novel vitamin D and lumisterol metabolites are candidates for antiviral drug research.

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