Identification of Bichalcones as Sirtuin Inhibitors by Virtual Screening and &lt;em&gt;in Vitro &lt;/em&gt;Testing

Karaman, Berin; Alhalabi, Zayan; Swyter, Sören; Mihigo, Shetonde O.; Andrae‐Marobela, Kerstin; Jung, Manfred; Sippl, Wolfgang; Ntie‐Kang, Fidele

doi:10.20944/preprints201801.0213.v1

2018

DOI: 10.20944/preprints201801.0213.v1

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Identification of Bichalcones as Sirtuin Inhibitors by Virtual Screening and <em>in Vitro </em>Testing

Berin Karaman

Zayan Alhalabi

Sören Swyter

et al.

Abstract: Abstract:Sirtuins are nicotinamide adenine dinucleotide (NAD + )-dependent class III histone deacetylases and have been linked to the pathogenesis of numerous diseases such as HIV, metabolic disorders, neurodegeneration and cancer. Docking of the virtual pan-African natural products library (p-ANAPL), followed by in vitro testing, resulted in the identification of two inhibitors of sirtuin 1, 2 and 3 (sirt1-3). Two bichalcones; rhuschalcone IV (8) and rhuschalcone I (9), previously isolated from the medicinal … Show more

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Cited by 6 publications

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Molecular Mechanisms of Antiproliferative Effects of Natural Chalcones

Michalková¹,

Mirossay²,

Gazdova³

et al. 2021

Cancers

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Although great progress has been made in the treatment of cancer, the search for new promising molecules with antitumor activity is still one of the greatest challenges in the fight against cancer due to the increasing number of new cases each year. Chalcones (1,3-diphenyl-2-propen-1-one), the precursors of flavonoid synthesis in higher plants, possess a wide spectrum of biological activities including antimicrobial, anti-inflammatory, antioxidant, and anticancer. A plethora of molecular mechanisms of action have been documented, including induction of apoptosis, autophagy, or other types of cell death, cell cycle changes, and modulation of several signaling pathways associated with cell survival or death. In addition, blockade of several steps of angiogenesis and proteasome inhibition has also been documented. This review summarizes the basic molecular mechanisms related to the antiproliferative effects of chalcones, focusing on research articles from the years January 2015–February 2021.

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Molecular Mechanisms of Antiproliferative Effects of Natural Chalcones

Michalková¹,

Mirossay²,

Gazdova³

et al. 2021

Cancers

View full text Add to dashboard Cite

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The Pleiotropic Function of Human Sirtuins as Modulators of Metabolic Pathways and Viral Infections

Alqarni

Foudah

Muharram

et al. 2021

Cells

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Sirtuins (SIRTs) are nicotinamide adenine dinucleotide-dependent histone deacetylases that incorporate complex functions in the mechanisms of cell physiology. Mammals have seven distinct members of the SIRT family (SIRT1-7), which play an important role in a well-maintained network of metabolic pathways that control and adapt the cell to the environment, energy availability and cellular stress. Until recently, very few studies investigated the role of SIRTs in modulating viral infection and progeny. Recent studies have demonstrated that SIRT1 and SIRT2 are promising antiviral targets because of their specific connection to numerous metabolic and regulatory processes affected during infection. In the present review, we summarize some of the recent progress in SIRTs biochemistry and their emerging function as antiviral targets. We also discuss the potential of natural polyphenol-based SIRT modulators to control their functional roles in several diseases including viral infections.

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Identification of Potential Dipeptidyl Peptidase (DPP)-IV Inhibitors among Moringa oleifera Phytochemicals by Virtual Screening, Molecular Docking Analysis, ADME/T-Based Prediction, and In Vitro Analyses

et al. 2020

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Moringa oleifera Lam. (MO) is called the “Miracle Tree” because of its extensive pharmacological activity. In addition to being an important food, it has also been used for a long time in traditional medicine in Asia for the treatment of chronic diseases such as diabetes and obesity. In this study, by constructing a library of MO phytochemical structures and using Discovery Studio software, compounds were subjected to virtual screening and molecular docking experiments related to their inhibition of dipeptidyl peptidase (DPP-IV), an important target for the treatment of type 2 diabetes. After the four-step screening process, involving screening for drug-like compounds, predicting the absorption, distribution, metabolism, excretion, and toxicity (ADME/T) of pharmacokinetic properties, LibDock heatmap matching analysis, and CDOCKER molecular docking analysis, three MO components that were candidate DPP-IV inhibitors were identified and their docking modes were analyzed. In vitro activity verification showed that all three MO components had certain DPP-IV inhibitory activities, of which O-Ethyl-4-[(α-l-rhamnosyloxy)-benzyl] carbamate (compound 1) had the highest activity (half-maximal inhibitory concentration [IC50] = 798 nM). This study provides a reference for exploring the molecular mechanisms underlying the anti-diabetic activity of MO. The obtained DPP-IV inhibitors could be used for structural optimization and in-depth in vivo evaluation.

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Identification of Bichalcones as Sirtuin Inhibitors by Virtual Screening and <em>in Vitro </em>Testing

Cited by 6 publications

References 57 publications

Molecular Mechanisms of Antiproliferative Effects of Natural Chalcones

Molecular Mechanisms of Antiproliferative Effects of Natural Chalcones

The Pleiotropic Function of Human Sirtuins as Modulators of Metabolic Pathways and Viral Infections

Identification of Potential Dipeptidyl Peptidase (DPP)-IV Inhibitors among Moringa oleifera Phytochemicals by Virtual Screening, Molecular Docking Analysis, ADME/T-Based Prediction, and In Vitro Analyses

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