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Taank Y, Randhawa V, Agnihotri N. Ergosterol and its metabolites as agonists of Liver X receptor and their anticancer potential in colorectal cancer. J Steroid Biochem Mol Biol 2024; 243:106572. [PMID: 38908720 DOI: 10.1016/j.jsbmb.2024.106572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/10/2024] [Accepted: 06/20/2024] [Indexed: 06/24/2024]
Abstract
Aberrant cholesterol homeostasis is a well-recognized hallmark of cancer and is implicated in metastasis as well as chemotherapeutic resistance, the two major causes of cancer associated mortality. Liver X receptors (LXRs) are the key transcription factors that induce cholesterol efflux via enhancing the expression of ABCA1 and ABCG1. Therefore, a comprehensive analysis of several novel sterols namely ergosta-7,22,24(28)-trien-3β-ol (Erg1), ergosta-5,22,25-trien-3-ol (Erg2), ergosta-5,7,22,24(28)-tetraen-3β-ol (Erg3), and ergosta-7,22-dien-3β-ol (Erg4) as LXR agonists has been performed. Molecular docking studies have shown that these sterols possess higher binding affinities for LXRs as compared to the reference ligands (GW3965 and TO901317) and also formed critical activating interactions. Molecular dynamic (MD) simulations further confirmed that docking complexes made of these sterols possess significant stability. To assess the extent of LXR activation, ABCA1 promoter was cloned into luciferase reporter plasmid and transfected into HCT116 cells. It was observed that treatment with Erg, Erg2 and Erg4 led to a significant LXR activation with an EC50 of 5.64 µM, 4.83 and 3.03 µM respectively. Furthermore, a significant increase in mRNA expression of NR1H2 and LXR target genes i.e. ABCA1, ABCG1 and ApoE was observed upon Erg treatment. Flow cytometric analysis have revealed a significant increase in the accumulation of ABCA1 upon Erg treatment. Cytotoxicity studies conducted on colorectal cancer cell and normal epithelial cell line showed that these sterols are selectively toxic towards cancer cells. Taken together, our findings suggests that ergosterol activates LXRs, have significant anticancer activity and could be a likely candidate to manage aberrant cholesterol homeostasis.
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Affiliation(s)
- Yogain Taank
- Department of Biochemistry (Sector 25), Panjab University, Chandigarh 160014, India
| | - Vinay Randhawa
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Navneet Agnihotri
- Department of Biochemistry (Sector 25), Panjab University, Chandigarh 160014, India.
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2
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Hackney JF, Broatch JE, Dallal RA, Brotherson C, Livingston S, Sabir Z, Reshi SM, Faltermeier Petras SR, Mallick S, Applegate MT, Mellor NJ, Buss K, Blain JM, Wagner CE, Jurutka PW, Marshall PA. Rexinoids Induce Differential Gene Expression in Human Glioblastoma Cells and Protein-Protein Interactions in a Yeast Two-Hybrid System. ACS Chem Neurosci 2024; 15:2897-2915. [PMID: 39012782 DOI: 10.1021/acschemneuro.4c00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024] Open
Abstract
Rexinoids are compounds that bind to the rexinoid X receptor (RXR) to modulate gene expression and have been proposed as a new class of therapeutics to treat Alzheimer's disease. Different rexinoids will initiate downstream effects that can be quite marked even though such compounds can be structurally similar and have comparable RXR binding affinities. RXR can both homo- and heterodimerize, and these protein-protein interactions and subsequent transactivating potential lead to differential gene expression, depending on the RXR dimeric partner, additional cofactors recruited, and downstream transcription factors that are up- or downregulated. Expression analysis was performed in the U87 human glioblastoma cell line treated with a panel of rexinoids, and our analysis demonstrated that rexinoids with similar RXR EC50 values can have pronounced differences in differential gene expression. Rexinoid binding likely leads to distinctive RXR conformations that cause major downstream gene expression alterations via modulation of RXR interacting proteins. Yeast two-hybrid analysis of RXR bait with two RXR interacting partners demonstrates that rexinoids drive differential binding of RXR to distinctive protein partners. Physiochemical analysis of the rexinoids reveals that the molecules cluster similarly to their gene expression patterns. Thus, rexinoids with similar RXR binding affinities drive differential gene expression by stimulating additional binding patterns in RXR and its homo- and heteropartners, driven by the physicochemical characteristics of these molecules.
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Affiliation(s)
- Jennifer F Hackney
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Jennifer E Broatch
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Rita A Dallal
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Christian Brotherson
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Sarah Livingston
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Zhela Sabir
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Sabeeha Mushtaq Reshi
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Samantha R Faltermeier Petras
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Sanchita Mallick
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Michael T Applegate
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Nicholas J Mellor
- Genomics Core, Biosciences, Arizona State University, Tempe, Arizona 85281, United States
| | - Kristina Buss
- Genomics Core, Biosciences, Arizona State University, Tempe, Arizona 85281, United States
| | - Joy M Blain
- Genomics Core, Biosciences, Arizona State University, Tempe, Arizona 85281, United States
| | - Carl E Wagner
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Peter W Jurutka
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
| | - Pamela A Marshall
- School of Mathematical and Natural Sciences, New College of Interdisciplinary Arts and Sciences, Arizona State University, Glendale, Arizona 85306, United States
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Maresca V, Capasso L, Rigano D, Stornaiuolo M, Sirignano C, Piacente S, Cerulli A, Marallo N, Basile A, Nebbioso A, Giordano D, Facchiano A, De Masi L, Bontempo P. Health-Promoting Effects, Phytochemical Constituents and Molecular Genetic Profile of the Purple Carrot 'Purple Sun' ( Daucus carota L.). Nutrients 2024; 16:2505. [PMID: 39125387 PMCID: PMC11314219 DOI: 10.3390/nu16152505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/23/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
The purple carrot cultivar 'Purple Sun' (Daucus carota L.) is characterized by a relevant content of phenolic compounds and anthocyanins, which may play an important role in reducing the risk of chronic diseases and in the treatment of metabolic syndrome. In the present study, the genetic diversity, phytochemical composition, and bioactivities of this outstanding variety were studied for the first time. Genetic analysis by molecular markers estimated the level of genetic purity of this carrot cultivar, whose purple-pigmented roots were used for obtaining the purple carrot ethanol extract (PCE). With the aim to identify specialized metabolites potentially responsible for the bioactivities, the analysis of the metabolite profile of PCE by LC-ESI/LTQ Orbitrap/MS/MS was carried out. LC-ESI/HRMS analysis allowed the assignment of twenty-eight compounds, putatively identified as isocitric acid (1), phenolic acid derivatives (2 and 6), hydroxycinnamic acid derivatives (9, 10, 12-14, 16, 17, 19, 22, and 23), anthocyanins (3-5, 7, 8, 11, and 18), flavanonols (15 and 21), flavonols (20 and 24), oxylipins (25, 26, and 28), and the sesquiterpene 11-acetyloxytorilolone (27); compound 26, corresponding to the primary metabolite trihydroxyoctanoic acid (TriHOME), was the most abundant compound in the LC-ESI/HRMS analysis of the PCE, and hydroxycinnamic acid derivatives followed by anthocyanins were the two most represented groups. The antioxidant activity of PCE, expressed in terms of reactive oxygen species (ROS) level and antioxidant enzymes activity, and its pro-metabolic effect were evaluated. Moreover, the antibacterial activity on Gram (-) and (+) bacterial strains was investigated. An increase in the activity of antioxidant enzymes (SOD, CAT, and GPx), reaching a maximum at 0.5 mg/mL of PCE with a plateau at higher PCE concentrations (1.25, 2.5, and 5.0 mg/mL), was observed. PCE induced an initial decrease in ROS levels at 0.1 and 0.25 mg/mL concentrations, reaching the ROS levels of control at 0.5 mg/mL of PCE with a plateau at higher PCE concentrations (1.25, 2.5, and 5.0 mg/mL). Moreover, significant antioxidant and pro-metabolic effects of PCE on myoblasts were shown by a reduction in ROS content and an increase in ATP production linked to the promotion of mitochondrial respiration. Finally, the bacteriostatic activity of PCE was shown on the different bacterial strains tested, while the bactericidal action of PCE was exclusively observed against the Gram (+) Staphylococcus aureus. The bioactivities of PCE were also investigated from cellular and molecular points of view in colon and hematological cancer cells. The results showed that PCE induces proliferative arrest and modulates the expression of important cell-cycle regulators. For all these health-promoting effects, also supported by initial computational predictions, 'Purple Sun' is a promising functional food and an optimal candidate for pharmaceutical and/or nutraceutical preparations.
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Affiliation(s)
- Viviana Maresca
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Naples, Italy; (V.M.); (A.B.)
| | - Lucia Capasso
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (L.C.); (A.N.); (P.B.)
| | - Daniela Rigano
- Department of Pharmacy, University of Naples Federico II, Via Montesano 49, 80131 Naples, Italy; (M.S.); (C.S.)
| | - Mariano Stornaiuolo
- Department of Pharmacy, University of Naples Federico II, Via Montesano 49, 80131 Naples, Italy; (M.S.); (C.S.)
| | - Carmina Sirignano
- Department of Pharmacy, University of Naples Federico II, Via Montesano 49, 80131 Naples, Italy; (M.S.); (C.S.)
| | - Sonia Piacente
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy; (S.P.); (A.C.)
| | - Antonietta Cerulli
- Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano (Salerno), Italy; (S.P.); (A.C.)
| | - Nadia Marallo
- Agronomist Consultant, Via S. Moccia 2/B, 83100 Avellino, Italy;
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, Via Cinthia 26, 80126 Naples, Italy; (V.M.); (A.B.)
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (L.C.); (A.N.); (P.B.)
| | - Deborah Giordano
- Institute of Food Science (ISA), National Research Council (CNR), Via Roma 64, 83100 Avellino, Italy; (D.G.); (A.F.)
| | - Angelo Facchiano
- Institute of Food Science (ISA), National Research Council (CNR), Via Roma 64, 83100 Avellino, Italy; (D.G.); (A.F.)
| | - Luigi De Masi
- Institute of Biosciences and BioResources (IBBR), National Research Council (CNR), Via Università 133, 80055 Portici (Naples), Italy
| | - Paola Bontempo
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, Via L. De Crecchio 7, 80138 Naples, Italy; (L.C.); (A.N.); (P.B.)
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Garcia-Maldonado E, Huber AD, Chai SC, Nithianantham S, Li Y, Wu J, Poudel S, Miller DJ, Seetharaman J, Chen T. Chemical manipulation of an activation/inhibition switch in the nuclear receptor PXR. Nat Commun 2024; 15:4054. [PMID: 38744881 PMCID: PMC11094003 DOI: 10.1038/s41467-024-48472-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
Nuclear receptors are ligand-activated transcription factors that can often be useful drug targets. Unfortunately, ligand promiscuity leads to two-thirds of receptors remaining clinically untargeted. PXR is a nuclear receptor that can be activated by diverse compounds to elevate metabolism, negatively impacting drug efficacy and safety. This presents a barrier to drug development because compounds designed to target other proteins must avoid PXR activation while retaining potency for the desired target. This problem could be avoided by using PXR antagonists, but these compounds are rare, and their molecular mechanisms remain unknown. Here, we report structurally related PXR-selective agonists and antagonists and their corresponding co-crystal structures to describe mechanisms of antagonism and selectivity. Structural and computational approaches show that antagonists induce PXR conformational changes incompatible with transcriptional coactivator recruitment. These results guide the design of compounds with predictable agonist/antagonist activities and bolster efforts to generate antagonists to prevent PXR activation interfering with other drugs.
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Affiliation(s)
- Efren Garcia-Maldonado
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Andrew D Huber
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA.
| | - Sergio C Chai
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Stanley Nithianantham
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Yongtao Li
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Jing Wu
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Shyaron Poudel
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Darcie J Miller
- Department of Structural Biology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Jayaraman Seetharaman
- Department of Structural Biology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Taosheng Chen
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA.
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5
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Almowallad S, Al-Massabi R. Berberine modulates cardiovascular diseases as a multitarget-mediated alkaloid with insights into its downstream signals using in silico prospective screening approaches. Saudi J Biol Sci 2024; 31:103977. [PMID: 38510527 PMCID: PMC10951604 DOI: 10.1016/j.sjbs.2024.103977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024] Open
Abstract
Atherosclerosis is potentially correlated with several cardiac disorders that are greatly associated with cellular oxidative stress generation, inflammation, endothelial cells dysfunction, and many cardiovascular complications. Berberine is a natural isoquinoline alkaloid compound that widely modulates pathogenesis of atherosclerosis through its different curative potentials. This in silico screening study was designed to confirm the potent restorative properties of berberine chloride as a multitarget-mediated alkaloid against the CVDs and their complications through screening, identifying, visualizing, and evaluating its binding models, affinities, and interactions toward several CVDs-related targets as direct and/or indirect-mediated signals via inhibiting cellular ER stress and apoptotic signals and activating autophagy pathway. The drug-likeness properties of berberine were predicted using the computational QSAR/ADMET and Lipinski's RO5 analyses as well as in silico molecular docking simulations. The potent berberine-binding modes, residues-interaction patterns, and free energies of binding scores towards several CVDs-related targets were estimated using molecular docking tools. Furthermore, the pharmacokinetic properties and toxicological features of berberine were clearly determined. According to this in silico virtual screening study, berberine chloride could restore cardiac function and improve pathogenic features of atherosclerotic CVDs through alleviating ER stress and apoptotic signals, activating autophagy, improving insulin sensitivity, decreasing hyperglycemia and dyslipidemia, increasing intracellular RCT signaling, attenuating oxidative stress and vascular inflammation, and upregulating cellular antioxidant defenses in many cardiovascular tissues. In this in silico study, berberine chloride greatly modulated several potent CVDs-related targets, including SIGMAR1, GRP78, CASP3, BECN1, PIK3C3, SQSTM1/p62, LC3B, GLUT3, INSR, LDLR, LXRα, PPARγ, IL1β, IFNγ, iNOS, COX-2, MCP-1, IL10, GPx1, and SOD3.
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Affiliation(s)
- Sanaa Almowallad
- Assistant Professor of Medical Biochemistry, Department of Biochemistry, Faculty of Sciences, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Rehab Al-Massabi
- Assistant Professor of Medical Biochemistry, Department of Biochemistry, Faculty of Sciences, University of Tabuk, Tabuk 71491, Saudi Arabia
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Gustafsson JÅ, Li XC, Suh JH, Lou X. A structural perspective of liver X receptors. VITAMINS AND HORMONES 2023; 123:231-247. [PMID: 37717986 DOI: 10.1016/bs.vh.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Liver X receptors α and β are members of the nuclear receptor family, which comprise a flexible N-terminal domain, a DNA binding domain, a hinge linker, and a ligand binding domain. Liver X receptors are important regulators of cholesterol and lipid homeostasis by controlling the transcription of numerous genes. Key to their transcriptional role is synergetic interaction among the domains. DNA binding domain binds on DNA; ligand binding domain is a crucial switch to control the transcription activity through conformational change caused by ligand binding. The Liver X receptors form heterodimers with retinoid X receptor and then the liganded heterodimer may recruit other necessary transcription components to form an active transcription complex.
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Affiliation(s)
- Jan-Åke Gustafsson
- Department of Cell Biology and Biochemistry, Center for Nuclear Receptors and Cell Signaling, University of Houston, Houston, TX, United States; Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.
| | - Xian Chang Li
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Research Institute, Houston, TX, United States; Department of Surgery, Weill Cornell Medical College of Cornell University, New York, NY, United States
| | - Ji Ho Suh
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Xiaohua Lou
- Immunobiology and Transplant Science Center and Department of Surgery, Houston Methodist Research Institute, Houston, TX, United States.
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Liang YH, Luo YH, Chen IS, Lin HR. Engelheptanoxides behave as liver X receptor α agonists. Med Chem Res 2023. [DOI: 10.1007/s00044-023-03016-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Deshwal S, Baidya AT, Kumar R, Sandhir R. Structure-based virtual screening for identification of potential non-steroidal LXR modulators against neurodegenerative conditions. J Steroid Biochem Mol Biol 2022; 223:106150. [PMID: 35787453 DOI: 10.1016/j.jsbmb.2022.106150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 10/17/2022]
Abstract
Liver X Receptors (LXRs) are members of the nuclear receptor superfamily that regulate cholesterol metabolism. LXRs have been suggested as promising targets against many neurodegenerative diseases (NDDs). The present study was aimed to identify novel non-steroidal molecules that may potentially modulate LXR activity. The structure-based virtual screening (SBVS) was used to search for suitable compounds from the Asinex library. The top hits were selected and filtered based on their binding affinity for LXR α and β isoforms. Based on molecular docking and scoring results, 24 compounds were selected that had binding energy in the range of - 13.9 to - 12 for LXRα and - 12.5 to - 11 for LXRβ, which were higher than the reference ligands (GW3965 and TO901317). Further, the five hits referred to as model 29, 64, 202, 250, 313 were selected by virtue of their binding interactions with amino acid residues at the active site of LXRs. The selected hits were then subjected to absorption, distribution, metabolism, excretion, and toxicity (ADMET) analysis and blood-brain permeability prediction. It was observed that the selected hits had better pharmacokinetic properties with no toxicity and could cross blood-brain barrier. Further, the selected hits were analysed for dynamic evolution of the system with LXRs by molecular dynamics (MD) simulation at 100 ns using GROMACS. The MD simulation results validated that selected hits possess a remarkable amount of flexibility, stability, compactness, binding energy and exhibited limited conformational modification. The root mean square deviation (RMSD) values of the top-scoring hits complexed with LXRα and LXRβ were 0.05-0.6 nm and 0.05-0.45 nm respectively, which is greater than the protein itself. Altogether the study identified potential non-steroidal LXR modulators that appear to be effective against various neurodegenerative conditions involving perturbed cholesterol and lipid homeostasis.
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Affiliation(s)
- Sonam Deshwal
- Department of Biochemistry, Basic Medical Sciences, Block-II, Panjab University, Chandigarh 160014, India
| | - Anurag Tk Baidya
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Rajnish Kumar
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, UP, India
| | - Rajat Sandhir
- Department of Biochemistry, Basic Medical Sciences, Block-II, Panjab University, Chandigarh 160014, India.
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D’Arrigo G, Autiero I, Gianquinto E, Siragusa L, Baroni M, Cruciani G, Spyrakis F. Exploring Ligand Binding Domain Dynamics in the NRs Superfamily. Int J Mol Sci 2022; 23:ijms23158732. [PMID: 35955864 PMCID: PMC9369052 DOI: 10.3390/ijms23158732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
Nuclear receptors (NRs) are transcription factors that play an important role in multiple diseases, such as cancer, inflammation, and metabolic disorders. They share a common structural organization composed of five domains, of which the ligand-binding domain (LBD) can adopt different conformations in response to substrate, agonist, and antagonist binding, leading to distinct transcription effects. A key feature of NRs is, indeed, their intrinsic dynamics that make them a challenging target in drug discovery. This work aims to provide a meaningful investigation of NR structural variability to outline a dynamic profile for each of them. To do that, we propose a methodology based on the computation and comparison of protein cavities among the crystallographic structures of NR LBDs. First, pockets were detected with the FLAPsite algorithm and then an "all against all" approach was applied by comparing each pair of pockets within the same sub-family on the basis of their similarity score. The analysis concerned all the detectable cavities in NRs, with particular attention paid to the active site pockets. This approach can guide the investigation of NR intrinsic dynamics, the selection of reference structures to be used in drug design and the easy identification of alternative binding sites.
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Affiliation(s)
- Giulia D’Arrigo
- Department of Drug Science and Technology, University of Turin, Via Giuria 9, 10125 Turin, Italy
| | - Ida Autiero
- Molecular Horizon Srl, Via Montelino 30, 06084 Bettona, Italy
- National Research Council, Institute of Biostructures and Bioimaging, 80138 Naples, Italy
| | - Eleonora Gianquinto
- Department of Drug Science and Technology, University of Turin, Via Giuria 9, 10125 Turin, Italy
| | - Lydia Siragusa
- Molecular Horizon Srl, Via Montelino 30, 06084 Bettona, Italy
- Molecular Discovery Ltd., Theobald Street, Elstree Borehamwood, Hertfordshire WD6 4PJ, UK
| | - Massimo Baroni
- Molecular Discovery Ltd., Theobald Street, Elstree Borehamwood, Hertfordshire WD6 4PJ, UK
| | - Gabriele Cruciani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS), Via Elce di Sotto 8, 06123 Perugia, Italy
- Correspondence: (G.C.); (F.S.); Tel.: +39-075-5855629 (G.C.); +39-011-6707185 (F.S.)
| | - Francesca Spyrakis
- Department of Drug Science and Technology, University of Turin, Via Giuria 9, 10125 Turin, Italy
- Correspondence: (G.C.); (F.S.); Tel.: +39-075-5855629 (G.C.); +39-011-6707185 (F.S.)
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10
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She J, Gu T, Pang X, Liu Y, Tang L, Zhou X. Natural Products Targeting Liver X Receptors or Farnesoid X Receptor. Front Pharmacol 2022; 12:772435. [PMID: 35069197 PMCID: PMC8766425 DOI: 10.3389/fphar.2021.772435] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/22/2021] [Indexed: 12/18/2022] Open
Abstract
Nuclear receptors (NRs) are a superfamily of transcription factors induced by ligands and also function as integrators of hormonal and nutritional signals. Among NRs, the liver X receptors (LXRs) and farnesoid X receptor (FXR) have been of significance as targets for the treatment of metabolic syndrome-related diseases. In recent years, natural products targeting LXRs and FXR have received remarkable interests as a valuable source of novel ligands encompassing diverse chemical structures and bioactive properties. This review aims to survey natural products, originating from terrestrial plants and microorganisms, marine organisms, and marine-derived microorganisms, which could influence LXRs and FXR. In the recent two decades (2000-2020), 261 natural products were discovered from natural resources such as LXRs/FXR modulators, 109 agonists and 38 antagonists targeting LXRs, and 72 agonists and 55 antagonists targeting FXR. The docking evaluation of desired natural products targeted LXRs/FXR is finally discussed. This comprehensive overview will provide a reference for future study of novel LXRs and FXR agonists and antagonists to target human diseases, and attract an increasing number of professional scholars majoring in pharmacy and biology with more in-depth discussion.
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Affiliation(s)
- Jianglian She
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Tanwei Gu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaoyan Pang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Lan Tang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
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11
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Liang Z, Chen Y, Gu T, She J, Dai F, Jiang H, Zhan Z, Li K, Liu Y, Zhou X, Tang L. LXR-Mediated Regulation of Marine-Derived Piericidins Aggravates High-Cholesterol Diet-Induced Cholesterol Metabolism Disorder in Mice. J Med Chem 2021; 64:9943-9959. [PMID: 34251816 DOI: 10.1021/acs.jmedchem.1c00175] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Reported as two antirenal cell carcinoma (RCC) drug candidates, marine-derived compounds piericidin A (PA) and glucopiericidin A (GPA) exhibit hepatotoxicity in renal carcinoma xenograft mice. Proteomics and transcriptomics reveal the hepatotoxicity related with cholesterol disposition since RCC is characterized by cholesterol accumulation. PA/GPA aggravate hepatotoxicity in high-cholesterol diet (HCD)-fed mice while exhibiting no toxicity in chow diet-fed mice. High cholesterol accumulation in liver is liver X receptor (LXR)-mediated cytochrome P450 family 7 subfamily a member 1 (CYP7A1) depression and low-density lipoprotein receptor (LDLR) activation. The farnesoid X nuclear receptor (FXR) is also depressed with a downregulated target gene OSTα. Different from PA directly combined with LXRα as an inhibitor, GPA exists as a prodrug in the liver and exerts toxic effects due to transformation into PA. Surface plasmon resonance (SPR) and docking results of 17 piericidins illustrate that glycosides exert no LXRα binding activity. A longer survival time of GPA-treated mice indicates that further exploration in anti-RCC drug research should focus on reducing glycosides transformed into PA and concentrating in the kidney tumor rather than the liver for lowering the risk of hepatotoxicity.
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Affiliation(s)
- Zhi Liang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yulian Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tanwei Gu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jianglian She
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Fahong Dai
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Huanguo Jiang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhikun Zhan
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Kunlong Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.,Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Lan Tang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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12
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Grisoni F, Huisman BJH, Button AL, Moret M, Atz K, Merk D, Schneider G. Combining generative artificial intelligence and on-chip synthesis for de novo drug design. SCIENCE ADVANCES 2021; 7:eabg3338. [PMID: 34117066 PMCID: PMC8195470 DOI: 10.1126/sciadv.abg3338] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 04/23/2021] [Indexed: 05/24/2023]
Abstract
Automating the molecular design-make-test-analyze cycle accelerates hit and lead finding for drug discovery. Using deep learning for molecular design and a microfluidics platform for on-chip chemical synthesis, liver X receptor (LXR) agonists were generated from scratch. The computational pipeline was tuned to explore the chemical space of known LXRα agonists and generate novel molecular candidates. To ensure compatibility with automated on-chip synthesis, the chemical space was confined to the virtual products obtainable from 17 one-step reactions. Twenty-five de novo designs were successfully synthesized in flow. In vitro screening of the crude reaction products revealed 17 (68%) hits, with up to 60-fold LXR activation. The batch resynthesis, purification, and retesting of 14 of these compounds confirmed that 12 of them were potent LXR agonists. These results support the suitability of the proposed design-make-test-analyze framework as a blueprint for automated drug design with artificial intelligence and miniaturized bench-top synthesis.
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Affiliation(s)
- Francesca Grisoni
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland.
- Eindhoven University of Technology, Department of Biomedical Engineering, Eindhoven, Netherlands
| | - Berend J H Huisman
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland
| | - Alexander L Button
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland
- University of Lausanne, Department of Computational Biology, Lausanne, Switzerland
| | - Michael Moret
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland
| | - Kenneth Atz
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland
| | - Daniel Merk
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland.
- Goethe University Frankfurt, Institute of Pharmaceutical Chemistry, Frankfurt, Germany
| | - Gisbert Schneider
- ETH Zurich, Department of Chemistry and Applied Biosciences, RETHINK, Zurich, Switzerland.
- ETH Singapore SEC Ltd, Singapore, Singapore
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13
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Xu H, Ohoka N, Yokoo H, Nemoto K, Ohtsuki T, Matsufuji H, Naito M, Inoue T, Tsuji G, Demizu Y. Development of Agonist-Based PROTACs Targeting Liver X Receptor. Front Chem 2021; 9:674967. [PMID: 34124002 PMCID: PMC8187946 DOI: 10.3389/fchem.2021.674967] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/05/2021] [Indexed: 11/15/2022] Open
Abstract
Liver X receptors (LXRs) belong to the nuclear hormone receptor superfamily and function as ligand-dependent transcription factors that regulate cholesterol homeostasis, lipid homeostasis, and immune responses. LXR antagonists are promising treatments for hypercholesterolemia and diabetes. However, effective LXR antagonists and inhibitors are yet to be developed. Thus, we aimed to develop LXR degraders (proteolysis targeting chimeras PROTACs against LXR) as a complementary strategy to provide a similar effect to LXR inhibition. In this study, we report the development of GW3965-PEG5-VH032 (3), a PROTAC capable of effectively degrading LXRβ protein. Compound 3 induced the ubiquitin-proteasome system-dependent degradation of the LXRβ protein, which requires VHL E3 ligase. We hope that PROTACs targeting LXR proteins will become novel therapeutic agents for LXR-related diseases.
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Affiliation(s)
- Hanqiao Xu
- Division of Organic Chemistry, National Institute of Health Sciences, Kanagawa, Japan.,Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Nobumichi Ohoka
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, Kanagawa, Japan
| | - Hidetomo Yokoo
- Division of Organic Chemistry, National Institute of Health Sciences, Kanagawa, Japan
| | - Kanako Nemoto
- Division of Organic Chemistry, National Institute of Health Sciences, Kanagawa, Japan
| | - Takashi Ohtsuki
- Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Hiroshi Matsufuji
- Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Mikihiko Naito
- Laboratory of Targeted Protein Degradation, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Takao Inoue
- Division of Molecular Target and Gene Therapy Products, National Institute of Health Sciences, Kanagawa, Japan
| | - Genichiro Tsuji
- Division of Organic Chemistry, National Institute of Health Sciences, Kanagawa, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Kanagawa, Japan.,Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan
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14
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Liang Z, Gu T, Wang J, She J, Ye Y, Cao W, Luo X, Xiao J, Liu Y, Tang L, Zhou X. Chromene and chromone derivatives as liver X receptors modulators from a marine-derived Pestalotiopsis neglecta fungus. Bioorg Chem 2021; 112:104927. [PMID: 33932772 DOI: 10.1016/j.bioorg.2021.104927] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 04/13/2021] [Accepted: 04/18/2021] [Indexed: 12/30/2022]
Abstract
Four new chromene derivatives, pestalotiochromenoic acids A - D (1, 2, 4, and 5), and two new chromone derivatives, pestalotiochromones A and B (6 and 7), were obtained from the marine alga-derived fungus Pestalotiopsis neglecta SCSIO41403, as well as a reported derivate named piperochromenoic acid (3) with its configuration determined for the first time. Their structures were determined by detailed nuclear magnetic resonance (NMR) and mass spectroscopic analyses, while the absolute configurations were established by theoretical NMR and electronic circular dichroism (ECD) calculation, including Mo2(OAc)4-induced ECD experiments. Those chromene and chromone derivatives displayed weak cytotoxicity, but showed obvious liver X receptors (LXRs) modulatory activities, by in vitro tests on the expression of LXRα, LXRβ and theirtarget gene ABCA1, as well as in silico docking analysis. Moreover, the high binding affinities between pestalotiochromone A (6) and LXRα, revealed by surface plasmon resonance (SPR) with the dissociation equilibrium constant (KD) value of 6.2 μM, demonstrated 6 could act as a new potential LXR agonist.
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Affiliation(s)
- Zhi Liang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tanwei Gu
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jianjiao Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, and South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Jianglian She
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, and South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Yuxiu Ye
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Wenyu Cao
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaowei Luo
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Jiao Xiao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, and South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Lan Tang
- Biopharmaceutics, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, Innovation Academy of South China Sea Ecology and Environmental Engineering, and South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
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15
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Slominski AT, Kim TK, Qayyum S, Song Y, Janjetovic Z, Oak ASW, Slominski RM, Raman C, Stefan J, Mier-Aguilar CA, Atigadda V, Crossman DK, Golub A, Bilokin Y, Tang EKY, Chen JY, Tuckey RC, Jetten AM, Song Y. Vitamin D and lumisterol derivatives can act on liver X receptors (LXRs). Sci Rep 2021; 11:8002. [PMID: 33850196 PMCID: PMC8044163 DOI: 10.1038/s41598-021-87061-w] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/16/2021] [Indexed: 12/11/2022] Open
Abstract
The interactions of derivatives of lumisterol (L3) and vitamin D3 (D3) with liver X receptors (LXRs) were investigated. Molecular docking using crystal structures of the ligand binding domains (LBDs) of LXRα and β revealed high docking scores for L3 and D3 hydroxymetabolites, similar to those of the natural ligands, predicting good binding to the receptor. RNA sequencing of murine dermal fibroblasts stimulated with D3-hydroxyderivatives revealed LXR as the second nuclear receptor pathway for several D3-hydroxyderivatives, including 1,25(OH)2D3. This was validated by their induction of genes downstream of LXR. L3 and D3-derivatives activated an LXR-response element (LXRE)-driven reporter in CHO cells and human keratinocytes, and by enhanced expression of LXR target genes. L3 and D3 derivatives showed high affinity binding to the LBD of the LXRα and β in LanthaScreen TR-FRET LXRα and β coactivator assays. The majority of metabolites functioned as LXRα/β agonists; however, 1,20,25(OH)3D3, 1,25(OH)2D3, 1,20(OH)2D3 and 25(OH)D3 acted as inverse agonists of LXRα, but as agonists of LXRβ. Molecular dynamics simulations for the selected compounds, including 1,25(OH)2D3, 1,20(OH)2D3, 25(OH)D3, 20(OH)D3, 20(OH)L3 and 20,22(OH)2L3, showed different but overlapping interactions with LXRs. Identification of D3 and L3 derivatives as ligands for LXRs suggests a new mechanism of action for these compounds.
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Affiliation(s)
- Andrzej T Slominski
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA.
- Comprehensive Cancer Center, Cancer Chemoprevention Program, University of Alabama at Birmingham, Birmingham, AL, 35249, USA.
- Pathology and Laboratory Medicine Service, VA Medical Center, Birmingham, AL, 35249, USA.
| | - Tae-Kang Kim
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Shariq Qayyum
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Yuwei Song
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Zorica Janjetovic
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Allen S W Oak
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Radomir M Slominski
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Chander Raman
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Joanna Stefan
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
- Department of Oncology, Nicolaus Copernicus University Medical College, Romanowskiej str. 2, 85-796, Bydgoszcz, Poland
| | - Carlos A Mier-Aguilar
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
| | - Venkatram Atigadda
- Department of Dermatology, University of Alabama at Birmingham, 1670 University Blvd, Rm 476, Birmingham, AL, 35249, USA
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL, 35249, USA
| | - David K Crossman
- Department of Genetics, Genomics Core Facility, University of Alabama at Birmingham, Birmingham, AL, 35249, USA
| | | | | | - Edith K Y Tang
- School of Molecular Sciences, The University of Western Australia, Perth, WA, Australia
| | - Jake Y Chen
- Informatics Institute, University of Alabama at Birmingham, Birmingham, AL, 35249, USA
| | - Robert C Tuckey
- School of Molecular Sciences, The University of Western Australia, Perth, WA, Australia
| | - Anton M Jetten
- Cell Biology Section, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Yuhua Song
- Department of Biomedical Engineering, University of Alabama at Birmingham, Shelby 803, Birmingham, AL, 35249, USA.
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16
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Buñay J, Fouache A, Trousson A, de Joussineau C, Bouchareb E, Zhu Z, Kocer A, Morel L, Baron S, Lobaccaro JMA. Screening for liver X receptor modulators: Where are we and for what use? Br J Pharmacol 2020; 178:3277-3293. [PMID: 33080050 DOI: 10.1111/bph.15286] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 09/14/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022] Open
Abstract
Liver X receptors (LXRs) are members of the nuclear receptor superfamily that are canonically activated by oxidized derivatives of cholesterol. Since the mid-90s, numerous groups have identified LXRs as endocrine receptors that are involved in the regulation of various physiological functions. As a result, when their expression is genetically modified in mice, phenotypic analyses reveal endocrine disorders ranging from infertility to diabetes and obesity, nervous system pathologies such Alzheimer's or Parkinson's disease, immunological disturbances, inflammatory response, and enhancement of tumour development. Based on such findings, it appears that LXRs could constitute good pharmacological targets to prevent and/or to treat these diseases. This review discusses the various aspects of LXR drug discovery, from the tools available for the screening of potential LXR modulators to the current situational analysis of the drugs in development. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
- Julio Buñay
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Allan Fouache
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Amalia Trousson
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Cyrille de Joussineau
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Erwan Bouchareb
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Zhekun Zhu
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Ayhan Kocer
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Laurent Morel
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Silvere Baron
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
| | - Jean-Marc A Lobaccaro
- Université Clermont Auvergne, GReD, CNRS, INSERM, and Centre de Recherche en Nutrition Humaine d'Auvergne Clermont-Ferrand, Clermont-Ferrand, France
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17
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Pontini L, Marinozzi M. Shedding light on the roles of liver X receptors in cancer by using chemical probes. Br J Pharmacol 2020; 178:3261-3276. [PMID: 32673401 DOI: 10.1111/bph.15200] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022] Open
Abstract
Nuclear receptors, liver X receptor-α (LXRα; NR1H3) and liver X receptor-β (LXRβ; NR1H2), are considered master regulators of lipid homeostasis. During the last couple of decades, their pivotal roles in several physiological and pathological processes ranging from energy supply, immunity, cardiovascular, neurodegenerative disorders and cancer have been highlighted. In this review, the main results achieved during more recent years about our understanding of the LXR involvement in cancer has been mainly obtained using small-molecule chemical probes. Remarkably, all these probes, albeit having different structure and biological properties, have a well demonstrated anti-tumoral activity arising from LXR modulation, indicating a high potential of LXR targeting for the treatment of cancer. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
- Lorenzo Pontini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Maura Marinozzi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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18
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Voisin M, Gage MC, Becares N, Shrestha E, Fisher EA, Pineda-Torra I, Garabedian MJ. LXRα Phosphorylation in Cardiometabolic Disease: Insight From Mouse Models. Endocrinology 2020; 161:bqaa089. [PMID: 32496563 PMCID: PMC7324054 DOI: 10.1210/endocr/bqaa089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/29/2020] [Indexed: 01/12/2023]
Abstract
Posttranslational modifications, such as phosphorylation, are a powerful means by which the activity and function of nuclear receptors such as LXRα can be altered. However, despite the established importance of nuclear receptors in maintaining metabolic homeostasis, our understanding of how phosphorylation affects metabolic diseases is limited. The physiological consequences of LXRα phosphorylation have, until recently, been studied only in vitro or nonspecifically in animal models by pharmacologically or genetically altering the enzymes enhancing or inhibiting these modifications. Here we review recent reports on the physiological consequences of modifying LXRα phosphorylation at serine 196 (S196) in cardiometabolic disease, including nonalcoholic fatty liver disease, atherosclerosis, and obesity. A unifying theme from these studies is that LXRα S196 phosphorylation rewires the LXR-modulated transcriptome, which in turn alters physiological response to environmental signals, and that this is largely distinct from the LXR-ligand-dependent action.
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Affiliation(s)
- Maud Voisin
- Department of Microbiology, New York University School of Medicine, New York, New York, US
| | - Matthew C Gage
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Natalia Becares
- Centre of Clinical Pharmacology, Division of Medicine, University College of London, London, UK
| | - Elina Shrestha
- Department of Microbiology, New York University School of Medicine, New York, New York, US
| | - Edward A Fisher
- Department of Microbiology, New York University School of Medicine, New York, New York, US
- Department of Medicine, New York University School of Medicine, New York, New York, US
| | - Ines Pineda-Torra
- Centre of Cardiometabolic and Vascular Science, Division of Medicine, University College of London, London, UK
| | - Michael J Garabedian
- Department of Microbiology, New York University School of Medicine, New York, New York, US
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19
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Identifying new liver X receptor alpha modulators and distinguishing between agonists and antagonists by crystal ligand pocket screening. Future Med Chem 2020; 12:1227-1237. [PMID: 32432891 DOI: 10.4155/fmc-2020-0069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Modulators of LXRα are of high pharmacological interest as LXRα regulates fatty acid metabolism, inflammatory processes and cancer. We aim to identify new LXRα modulators and to recognize a distinguishable feature of agonists. Results&methodology: The ligand self-dock and largest-cavity-size searching purposely located two appropriate ligand-binding sites to reach the two aims. One is identifying the new modulators from Maybridge library. 20 new compounds are confirmed by the in vitro reporter gene assay. The other is denoting an agonist by at least one best docking pose having one hydrogen bond to LXRα Helix12 His421. Conclusion: Based on the quality x-ray binding pocket, we can identify new LXRα modulators and distinguish between agonists and antagonists by molecular docking.
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20
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Salazar JR, Loza-Mejía MA, Soto-Cabrera D. Chemistry, Biological Activities and In Silico Bioprospection of Sterols and Triterpenes from Mexican Columnar Cactaceae. Molecules 2020; 25:molecules25071649. [PMID: 32260146 PMCID: PMC7180492 DOI: 10.3390/molecules25071649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 03/30/2020] [Accepted: 03/30/2020] [Indexed: 12/21/2022] Open
Abstract
The Cactaceae family is an important source of triterpenes and sterols. The wide uses of those plants include food, gathering, medicinal, and live fences. Several studies have led to the isolation and characterization of many bioactive compounds. This review is focused on the chemistry and biological properties of sterols and triterpenes isolated mainly from some species with columnar and arborescent growth forms of Mexican Cactaceae. Regarding the biological properties of those compounds, apart from a few cases, their molecular mechanisms displayed are not still fully understand. To contribute to the above, computational chemistry tools have given a boost to traditional methods used in natural products research, allowing a more comprehensive exploration of chemistry and biological activities of isolated compounds and extracts. From this information an in silico bioprospection was carried out. The results suggest that sterols and triterpenoids present in Cactaceae have interesting substitution patterns that allow them to interact with some bio targets related to inflammation, metabolic diseases, and neurodegenerative processes. Thus, they should be considered as attractive leads for the development of drugs for the management of chronic degenerative diseases.
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Affiliation(s)
- Juan Rodrigo Salazar
- Correspondence: (J.R.S.); (M.A.L.-M.); Tel.: +52-55-5278-9500 (J.R.S. & M.A.L.-M.)
| | - Marco A. Loza-Mejía
- Correspondence: (J.R.S.); (M.A.L.-M.); Tel.: +52-55-5278-9500 (J.R.S. & M.A.L.-M.)
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21
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Abstract
The urea functionality is inherent to numerous bioactive compounds, including a variety of clinically approved therapies. Urea containing compounds are increasingly used in medicinal chemistry and drug design in order to establish key drug-target interactions and fine-tune crucial drug-like properties. In this perspective, we highlight physicochemical and conformational properties of urea derivatives. We provide outlines of traditional reagents and chemical procedures for the preparation of ureas. Also, we discuss newly developed methodologies mainly aimed at overcoming safety issues associated with traditional synthesis. Finally, we provide a broad overview of urea-based medicinally relevant compounds, ranging from approved drugs to recent medicinal chemistry developments.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907, United States.,Department of Excellence of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
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22
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Belorusova AY, Evertsson E, Hovdal D, Sandmark J, Bratt E, Maxvall I, Schulman IG, Åkerblad P, Lindstedt EL. Structural analysis identifies an escape route from the adverse lipogenic effects of liver X receptor ligands. Commun Biol 2019; 2:431. [PMID: 31799433 PMCID: PMC6874530 DOI: 10.1038/s42003-019-0675-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/04/2019] [Indexed: 02/08/2023] Open
Abstract
Liver X receptors (LXRs) are attractive drug targets for cardiovascular disease treatment due to their role in regulating cholesterol homeostasis and immunity. The anti-atherogenic properties of LXRs have prompted development of synthetic ligands, but these cause major adverse effects-such as increased lipogenesis-which are challenging to dissect from their beneficial activities. Here we show that LXR compounds displaying diverse functional responses in animal models induce distinct receptor conformations. Combination of hydrogen/deuterium exchange mass spectrometry and multivariate analysis allowed identification of LXR regions differentially correlating with anti-atherogenic and lipogenic activities of ligands. We show that lipogenic compounds stabilize active states of LXRα and LXRβ while the anti-atherogenic expression of the cholesterol transporter ABCA1 is associated with the ligand-induced stabilization of LXRα helix 3. Our data indicates that avoiding ligand interaction with the activation helix 12 while engaging helix 3 may provide directions for development of ligands with improved therapeutic profiles.
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Affiliation(s)
- Anna Y. Belorusova
- Medicinal Chemistry, Respiratory, Inflammation and Autoimmunity, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Emma Evertsson
- Medicinal Chemistry, Respiratory, Inflammation and Autoimmunity, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Daniel Hovdal
- Preclinical and Translational PK & PKPD, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Jenny Sandmark
- Structure, Biophysics & Fragment Based Lead Generation, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Emma Bratt
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Ingela Maxvall
- Translational Science and Experimental Medicine, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D AstraZeneca, Gothenburg, Sweden
| | - Ira G. Schulman
- Department of Pharmacology, University of Virginia, Charlottesville, VA USA
| | - Peter Åkerblad
- Bioscience Heart Failure, Cardiovascular, Renal and Metabolism, Biopharmaceuticals R&D AstraZeneca, Gothenburg, Sweden
- Present Address: Albireo Pharma, Gothenburg, Sweden
| | - Eva-Lotte Lindstedt
- Early Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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23
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Ding P, Chen Z, Chen H, Zhang Z, Liu Z, Yan X, Zhou H, Gu Q, Li C, Xu J. Structurally Selective Mechanism of Liver X Receptor Ligand: In Silico and In Vitro Studies. J Chem Inf Model 2019; 59:3277-3290. [DOI: 10.1021/acs.jcim.9b00292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Peng Ding
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Ziyang Chen
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Hao Chen
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Zizhen Zhang
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Zhihong Liu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Xin Yan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Huihao Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Chanjuan Li
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou 510006, China
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24
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Fouache A, Zabaiou N, De Joussineau C, Morel L, Silvente-Poirot S, Namsi A, Lizard G, Poirot M, Makishima M, Baron S, Lobaccaro JMA, Trousson A. Flavonoids differentially modulate liver X receptors activity-Structure-function relationship analysis. J Steroid Biochem Mol Biol 2019; 190:173-182. [PMID: 30959154 DOI: 10.1016/j.jsbmb.2019.03.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/27/2019] [Accepted: 03/31/2019] [Indexed: 12/30/2022]
Abstract
Liver X receptors (LXRs) α (NR1H3) and β (NR1H2) are nuclear receptors that have been involved in the regulation of many physiological processes, principally in the control of cholesterol homeostasis, as well as in the control of the cell death and proliferation balance. These receptors are thus promising therapeutic targets in various pathologies such as dyslipidemia, atherosclerosis, diabetes and/or cancers. These receptors are known to be activated by specific oxysterol compounds. The screening for LXR-specific ligands is a challenging process: indeed, these molecules should present a specificity towards each LXR-isoform. Because some natural products have significant effects in the regulation of the LXR-regulated homeostasis and are enriched in flavonoids, we have decided to test in cell culture the effects of 4 selected flavonoids (galangin, quercetin, apigenin and naringenin) on the modulation of LXR activity using double-hybrid experiments. In silico, molecular docking suggests specific binding pattern between agonistic and antagonistic molecules. Altogether, these results allow a better understanding of the ligand binding pocket of LXRα/β. They also improve our knowledge about flavonoid mechanism of action, allowing the selection and development of better LXR selective ligands.
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Affiliation(s)
- Allan Fouache
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, 58 Boulevard Montalembert, F-63009, Clermont-Ferrand, France.
| | - Nada Zabaiou
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Laboratory of Molecular Toxicology, Department of Molecular and Cellular Biology, Faculty of Science, Université Mohamed Seddik Ben Yahia, 18000, Jijel, Algeria.
| | - Cyrille De Joussineau
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, 58 Boulevard Montalembert, F-63009, Clermont-Ferrand, France.
| | - Laurent Morel
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, 58 Boulevard Montalembert, F-63009, Clermont-Ferrand, France.
| | | | - Amira Namsi
- University Tunis El Manar, Faculty of Sciences of Tunis, UR/11ES09, Lab. 'Functional Neurophysiology and Pathology', 2092, Tunis, Tunisia.
| | - Gérard Lizard
- Team Bio-peroxIL, "Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism" (EA7270)/University Bourgogne Franche-Comté/Inserm, 21000, Dijon, France.
| | - Marc Poirot
- Cancer Research Center of Toulouse, UMR 1037 INSERM-University of Toulouse, Toulouse, France.
| | - Makoto Makishima
- Nihon University School of Medicine, Division of Biochemistry, Department of Biomedical Sciences, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Silvère Baron
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, 58 Boulevard Montalembert, F-63009, Clermont-Ferrand, France.
| | - Jean-Marc A Lobaccaro
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, 58 Boulevard Montalembert, F-63009, Clermont-Ferrand, France.
| | - Amalia Trousson
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, 28, place Henri Dunant, BP38, F63001, Clermont-Ferrand, France; Centre de Recherche en Nutrition Humaine d'Auvergne, 58 Boulevard Montalembert, F-63009, Clermont-Ferrand, France.
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25
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Ranking strategies to support toxicity prediction: A case study on potential LXR binders. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.comtox.2019.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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26
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El-Gendy BEDM, Goher SS, Hegazy LS, Arief MMH, Burris TP. Recent Advances in the Medicinal Chemistry of Liver X Receptors. J Med Chem 2018; 61:10935-10956. [DOI: 10.1021/acs.jmedchem.8b00045] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Bahaa El-Dien M. El-Gendy
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri 63104, United States
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Shaimaa S. Goher
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Lamees S. Hegazy
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri 63104, United States
| | - Mohamed M. H. Arief
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
| | - Thomas P. Burris
- Center for Clinical Pharmacology, Washington University School of Medicine and St. Louis College of Pharmacy, St. Louis, Missouri 63110, United States
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27
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Lipid reducing activity of novel cholic acid (CA) analogs: Design, synthesis and preliminary mechanism study. Bioorg Chem 2018; 80:396-407. [PMID: 29986186 DOI: 10.1016/j.bioorg.2018.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/27/2018] [Accepted: 07/01/2018] [Indexed: 12/23/2022]
Abstract
Bile acids, initially discovered as endogenous ligands of farnesoid X receptor (FXR), play a central role in the regulation of triglyceride and cholesterol metabolism and have recently emerged as a privileged structure for interacting with nuclear receptors relevant to a large array of metabolic processes. In this paper, phenoxy containing cholic acid derivatives with excellent drug-likeness have been designed, synthesized, and assayed as agents against cholesterol accumulation in Raw264.7 macrophages. The most active compound 14b reduced total cholesterol accumulation in Raw264.7 cells up to 30.5% at non-toxic 10 μM and dosage-dependently attenuated oxLDL-induced foam cell formation. Western blotting and qPCR results demonstrate that 14b reduced both cholesterol and lipid in Raw264.7 cells through (1) increasing the expression of cholesterol transporters ABCA1 and ABCG1, (2) accelerating ApoA1-mediated cholesterol efflux. Through a cell-based luciferase reporter assay and molecular docking analysis, LXR was identified as the potential target for 14b. Interestingly, unlike conventional LXR agonist, 14b did not increase lipogenesis gene SREBP-1c expression. Overall, these diverse properties disclosed herein highlight the potential of 14b as a promising lead for further development of multifunctional agents in the therapy of cardiovascular disease.
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28
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Goyal S, Chattopadhyay A, Kasavajhala K, Priyakumar UD. Role of Urea–Aromatic Stacking Interactions in Stabilizing the Aromatic Residues of the Protein in Urea-Induced Denatured State. J Am Chem Soc 2017; 139:14931-14946. [DOI: 10.1021/jacs.7b05463] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Siddharth Goyal
- Center for Computational
Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500 032, India
| | - Aditya Chattopadhyay
- Center for Computational
Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500 032, India
| | - Koushik Kasavajhala
- Center for Computational
Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500 032, India
| | - U. Deva Priyakumar
- Center for Computational
Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500 032, India
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29
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Hyodeoxycholic acid derivatives as liver X receptor α and G-protein-coupled bile acid receptor agonists. Sci Rep 2017; 7:43290. [PMID: 28233865 PMCID: PMC5324103 DOI: 10.1038/srep43290] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 01/23/2017] [Indexed: 12/22/2022] Open
Abstract
Bile acids are extensively investigated for their potential in the treatment of human disorders. The liver X receptors (LXRs), activated by oxysterols and by a secondary bile acid named hyodeoxycholic acid (HDCA), have been found essential in the regulation of lipid homeostasis in mammals. Unfortunately, LXRα activates lipogenic enzymes causing accumulation of lipid in the liver. In addition to LXRs, HDCA has been also shown to function as ligand for GPBAR1, a G protein coupled receptor for secondary bile acids whose activation represents a promising approach to liver steatosis. In the present study, we report a library of HDCA derivatives endowed with modulatory activity on the two receptors. The lead optimization of HDCA moiety was rationally driven by the structural information on the binding site of the two targets and results from pharmacological characterization allowed the identification of hyodeoxycholane derivatives with selective agonistic activity toward LXRα and GPBAR1 and notably to the identification of the first example of potent dual LXRα/GPBAR1 agonists. The new chemical entities might hold utility in the treatment of dyslipidemic disorders.
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30
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Li N, Wang X, Xu Y, Lin Y, Zhu N, Liu P, Lu D, Si S. Identification of a Novel Liver X Receptor Agonist that Regulates the Expression of Key Cholesterol Homeostasis Genes with Distinct Pharmacological Characteristics. Mol Pharmacol 2017; 91:264-276. [PMID: 28087808 DOI: 10.1124/mol.116.105213] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 01/06/2017] [Indexed: 11/22/2022] Open
Abstract
Activation of liver X receptor (LXR) is associated with cholesterol metabolism and anti-inflammatory processes, which makes it beneficial to antiatherosclerosis therapy. Nevertheless, existing agonists that target LXR, for example TO901317, are related to unwanted side effects. In the present study, using a screening method we identified IMB-808, which displayed potent dual LXRα/β agonistic activity. In vitro, IMB-808 effectively increased the expressing quantity of genes related to reverse cholesterol transport process as well as those associated with cholesterol metabolism pathway in multiple cell lines. Additionally, IMB-808 remarkably promoted cholesterol efflux from RAW264.7 as well as THP-1 macrophage cells and reduced cellular lipid accumulation accordingly. Interestingly, compared with TO901317, IMB-808 almost did not increase the expressing quantity of genes related to lipogenesis in HepG2 cells, which indicated that IMB-808 could exhibit fewer internal lipogenic side effects with a characteristic of selective LXR agonist. Furthermore, in comparison with the full LXR agonist TO901317, IMB-808 recruits coregulators differently and possesses a distinct predictive binding pattern for the LXR ligand-binding domain. In summary, our study demonstrated that IMB-808 could act as an innovative partial LXR agonist that avoids common lipogenic side effects, providing insight for the design of novel LXR modulators. Our data indicate that this compound might be used as a promising therapeutic agent for the prospective treatment of atherosclerosis in the future.
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Affiliation(s)
- Ni Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Xiao Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Yanni Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Yuan Lin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Ningyu Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Peng Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Duo Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
| | - Shuyi Si
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, People's Republic of China (N.L., Y.L., D.L.); and Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China (N.L., X.W., Y.X., N.Z., P.L., S.S.)
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31
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Komati R, Spadoni D, Zheng S, Sridhar J, Riley KE, Wang G. Ligands of Therapeutic Utility for the Liver X Receptors. Molecules 2017; 22:molecules22010088. [PMID: 28067791 PMCID: PMC5373669 DOI: 10.3390/molecules22010088] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/29/2016] [Accepted: 12/30/2016] [Indexed: 12/21/2022] Open
Abstract
Liver X receptors (LXRs) have been increasingly recognized as a potential therapeutic target to treat pathological conditions ranging from vascular and metabolic diseases, neurological degeneration, to cancers that are driven by lipid metabolism. Amidst intensifying efforts to discover ligands that act through LXRs to achieve the sought-after pharmacological outcomes, several lead compounds are already being tested in clinical trials for a variety of disease interventions. While more potent and selective LXR ligands continue to emerge from screening of small molecule libraries, rational design, and empirical medicinal chemistry approaches, challenges remain in minimizing undesirable effects of LXR activation on lipid metabolism. This review provides a summary of known endogenous, naturally occurring, and synthetic ligands. The review also offers considerations from a molecular modeling perspective with which to design more specific LXRβ ligands based on the interaction energies of ligands and the important amino acid residues in the LXRβ ligand binding domain.
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Affiliation(s)
- Rajesh Komati
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Dominick Spadoni
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Shilong Zheng
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Jayalakshmi Sridhar
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Kevin E Riley
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
| | - Guangdi Wang
- Department of Chemistry and RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA 70125, USA.
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32
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Zimmermann MO, Boeckler FM. Targeting the protein backbone with aryl halides: systematic comparison of halogen bonding and π⋯π interactions using N-methylacetamide. MEDCHEMCOMM 2016. [DOI: 10.1039/c5md00499c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Systematic plane scans reveal a seamless transition from σ-hole interactions with the carbonyl oxygen to interactions with the amide π-electrons at increasing distances.
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Affiliation(s)
- M. O. Zimmermann
- Department of Pharmaceutical and Medicinal Chemistry
- Institute of Pharmaceutical Sciences
- Eberhard Karls Universität Tübingen
- 72076 Tübingen
- Germany
| | - F. M. Boeckler
- Department of Pharmaceutical and Medicinal Chemistry
- Institute of Pharmaceutical Sciences
- Eberhard Karls Universität Tübingen
- 72076 Tübingen
- Germany
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33
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Nomura S, Endo-Umeda K, Aoyama A, Makishima M, Hashimoto Y, Ishikawa M. Styrylphenylphthalimides as Novel Transrepression-Selective Liver X Receptor (LXR) Modulators. ACS Med Chem Lett 2015; 6:902-7. [PMID: 26288691 DOI: 10.1021/acsmedchemlett.5b00170] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 07/13/2015] [Indexed: 11/29/2022] Open
Abstract
Anti-inflammatory effects of liver X receptor (LXR) ligands are thought to be largely due to LXR-mediated transrepression, whereas side effects are caused by activation of LXR-responsive gene expression (transactivation). Therefore, selective LXR modulators that preferentially exhibit transrepression activity should exhibit anti-inflammatory properties with fewer side effects. Here, we synthesized a series of styrylphenylphthalimide analogues and evaluated their structure-activity relationships focusing on LXRs-transactivating-agonistic/antagonistic activities and transrepressional activity. Among the compounds examined, 17l showed potent LXR-transrepressional activity with high selectivity over transactivating activity and did not show characteristic side effects of LXR-transactivating agonists in cells. This representative compound, 17l, was confirmed to have LXR-dependent transrepressional activity and to bind directly to LXRβ. Compound 17l should be useful not only as a chemical tool for studying the biological functions of LXRs transrepression but also as a candidate for a safer agent to treat inflammatory diseases.
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Affiliation(s)
- Sayaka Nomura
- Institute
of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Kaori Endo-Umeda
- Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Atsushi Aoyama
- Institute
of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Makoto Makishima
- Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Yuichi Hashimoto
- Institute
of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Minoru Ishikawa
- Institute
of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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Mozzicafreddo M, Cuccioloni M, Bonfili L, Cecarini V, Palermo FA, Cocci P, Mosconi G, Capone A, Ricci I, Eleuteri AM, Angeletti M. Environmental pollutants directly affect the liver X receptor alpha activity: Kinetic and thermodynamic characterization of binding. J Steroid Biochem Mol Biol 2015; 152:1-7. [PMID: 25869557 DOI: 10.1016/j.jsbmb.2015.04.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 04/02/2015] [Accepted: 04/08/2015] [Indexed: 12/14/2022]
Abstract
Liver X receptor is a ligand-activated transcription factor, which is mainly involved in cholesterol homeostasis, bile acid and triglycerides metabolism, and, as recently discovered, in the glucose metabolism by direct regulation of liver glucokinase. Its modulation by exogenous factors, such as drugs, industrial by-products, and chemicals is documented. Owing to the abundance of these synthetic molecules in the environment, and to the established target role of this receptor, a number of representative compounds of phthalate, organophosphate and fibrate classes were tested as ligands/modulators of human liver X receptor, using an integrated approach, combining an in silico molecular docking technique with an optical SPR biosensor binding study. The compounds of interest were predicted and proved to target the oxysterols-binding site of human LXRα with measurable binding kinetic constants and with affinities ranging between 4.3 × 10(-7) and 4.3 × 10(-8)M. Additionally, non-cytotoxic concentration of these chemicals induced relevant changes in the LXRα gene expression levels and other target genes (SREBP-1c and LGK) in human liver hepatocellular carcinoma cell line (HepG2), as demonstrated by q-RT-PCR.
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Affiliation(s)
- Matteo Mozzicafreddo
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy.
| | | | - Laura Bonfili
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | - Valentina Cecarini
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | | | - Paolo Cocci
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | - Gilberto Mosconi
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | - Aida Capone
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | - Irene Ricci
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | - Anna Maria Eleuteri
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
| | - Mauro Angeletti
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino 62032 Italy
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35
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Cocci P, Mosconi G, Arukwe A, Mozzicafreddo M, Angeletti M, Aretusi G, Palermo FA. Effects of Diisodecyl Phthalate on PPAR:RXR-Dependent Gene Expression Pathways in Sea Bream Hepatocytes. Chem Res Toxicol 2015; 28:935-47. [PMID: 25825955 DOI: 10.1021/tx500529x] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Evidence that endocrine-disrupting chemicals (EDCs) may target metabolic disturbances, beyond interference with the functions of the endocrine systems has recently accumulated. Among EDCs, phthalate plasticizers like the diisodecyl phthalate (DiDP) are commonly found contaminants of aquatic environments and have been suggested to function as obesogens by activating peroxisome proliferator activated receptors (PPARs), a subset of nuclear receptors (NRs) that act as metabolic sensors, playing pivotal roles in lipid homeostasis. However, little is known about the modulation of PPAR signaling pathways by DiDP in fish. In this study, we have first investigated the ligand binding efficiency of DiDP to the ligand binding domains of PPARs and retinoid-X-receptor-α (RXRα) proteins in fish using a molecular docking approach. Furthermore, in silico predictions were integrated by in vitro experiments to show possible dose-relationship effects of DiDP on PPAR:RXR-dependent gene expression pathways using sea bream hepatocytes. We observed that DiDP shows high binding efficiency with piscine PPARs demonstrating a greater preference for RXRα. Our studies also demonstrated the coordinate increased expression of PPARs and RXRα, as well as their downstream target genes in vitro. Principal component analysis (PCA) showed the strength of relationship between transcription of most genes involved in fatty acid metabolism and PPAR mRNA levels. In particular, fatty acid binding protein (FABP) was highly correlated to all PPARs. The results of this study suggest that DiDP can be considered an environmental stressor that activates PPAR:RXR signaling to promote long-term changes in lipid homeostasis leading to potential deleterious physiological consequences in teleost fish.
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Affiliation(s)
- Paolo Cocci
- †School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino (MC), Italy
| | - Gilberto Mosconi
- †School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino (MC), Italy
| | - Augustine Arukwe
- ‡Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, 7491 Trondheim, Norway
| | - Matteo Mozzicafreddo
- †School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino (MC), Italy
| | - Mauro Angeletti
- †School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino (MC), Italy
| | - Graziano Aretusi
- §Controllo Statistico, Pescara, Italy.,⊥Marine Protected Area Torre del Cerrano, 64025 Pineto (TE), Italy
| | - Francesco Alessandro Palermo
- †School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, I-62032 Camerino (MC), Italy
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36
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Renga B, Festa C, De Marino S, Di Micco S, D'Auria MV, Bifulco G, Fiorucci S, Zampella A. Molecular decodification of gymnemic acids from Gymnema sylvestre. Discovery of a new class of liver X receptor antagonists. Steroids 2015; 96:121-31. [PMID: 25668616 DOI: 10.1016/j.steroids.2015.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 12/19/2014] [Accepted: 01/29/2015] [Indexed: 12/19/2022]
Abstract
The individual chemical components of commercial extract of Gymnema sylvestre, a medicinal plant used in the traditional systems of the Indian medicine for its antidiabetic and hypolipidemic properties, were isolated and evaluated for their capability to act as modulators of nuclear and membrane receptors involved in glucose and lipid homeostasis. The study disclosed for the first time that individual gymnemic acids are potent and selective antagonists for the β isoform of LXR. Indeed the above activity was shared by the most abundant aglycone gymnemagenin (10) whereas gymnestrogenin (11) was endowed with a dual LXRα/β antagonistic profile. Deep pharmacological investigation demonstrated that gymnestrogenin, reducing the expression of SREBP1c and ABCA1 in vitro, is able to decrease lipid accumulation in HepG2 cells. The results of this study substantiate the use of G. sylvestre extract in LXR mediated dislypidemic diseases.
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Affiliation(s)
- Barbara Renga
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, P.zza L. Severi, 1-06132 Perugia, Italy
| | - Carmen Festa
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Simona De Marino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Simone Di Micco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (Salerno), Italy
| | - Maria Valeria D'Auria
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (Salerno), Italy
| | - Stefano Fiorucci
- Department of Surgery and Biomedical Sciences, Nuova Facoltà di Medicina, P.zza L. Severi, 1-06132 Perugia, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy.
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Li Y, Wang L, Liu Z, Li C, Xu J, Gu Q, Xu J. Predicting selective liver X receptor β agonists using multiple machine learning methods. MOLECULAR BIOSYSTEMS 2015; 11:1241-50. [DOI: 10.1039/c4mb00718b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The classification models for predicting selective LXRβ agonists were firstly established using multiple machine learning methods. The top models can predict selective LXRβ agonists with chemical structure diversity.
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Affiliation(s)
- Yali Li
- Research Center for Drug Discovery & Institute of Human Virology
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
| | - Ling Wang
- School of Bioscience and Bioengineering
- South China University of Technology
- Guangzhou 510006
- China
| | - Zhihong Liu
- Research Center for Drug Discovery & Institute of Human Virology
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
| | - Chanjuan Li
- Research Center for Drug Discovery & Institute of Human Virology
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
| | - Jiake Xu
- Centre for Orthopaedic Research
- School of Surgery
- The University of Western Australia
- Perth
- Australia
| | - Qiong Gu
- Research Center for Drug Discovery & Institute of Human Virology
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
| | - Jun Xu
- Research Center for Drug Discovery & Institute of Human Virology
- School of Pharmaceutical Sciences
- Sun Yat-Sen University
- Guangzhou 510006
- China
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38
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Tice CM, Noto PB, Fan KY, Zhuang L, Lala DS, Singh SB. The Medicinal Chemistry of Liver X Receptor (LXR) Modulators. J Med Chem 2014; 57:7182-205. [PMID: 24832115 DOI: 10.1021/jm500442z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Colin M. Tice
- Vitae Pharmaceuticals Inc., 502 West Office Center Drive, Fort Washington, Pennsylvania 19034, United States
| | - Paul B. Noto
- Vitae Pharmaceuticals Inc., 502 West Office Center Drive, Fort Washington, Pennsylvania 19034, United States
| | - Kristi Yi Fan
- Vitae Pharmaceuticals Inc., 502 West Office Center Drive, Fort Washington, Pennsylvania 19034, United States
| | - Linghang Zhuang
- Vitae Pharmaceuticals Inc., 502 West Office Center Drive, Fort Washington, Pennsylvania 19034, United States
| | - Deepak S. Lala
- Vitae Pharmaceuticals Inc., 502 West Office Center Drive, Fort Washington, Pennsylvania 19034, United States
| | - Suresh B. Singh
- Vitae Pharmaceuticals Inc., 502 West Office Center Drive, Fort Washington, Pennsylvania 19034, United States
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39
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Yang C, Li Q, Li Y. Targeting nuclear receptors with marine natural products. Mar Drugs 2014; 12:601-35. [PMID: 24473166 PMCID: PMC3944506 DOI: 10.3390/md12020601] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/20/2013] [Accepted: 01/07/2014] [Indexed: 02/07/2023] Open
Abstract
Nuclear receptors (NRs) are important pharmaceutical targets because they are key regulators of many metabolic and inflammatory diseases, including diabetes, dyslipidemia, cirrhosis, and fibrosis. As ligands play a pivotal role in modulating nuclear receptor activity, the discovery of novel ligands for nuclear receptors represents an interesting and promising therapeutic approach. The search for novel NR agonists and antagonists with enhanced selectivities prompted the exploration of the extraordinary chemical diversity associated with natural products. Recent studies involving nuclear receptors have disclosed a number of natural products as nuclear receptor ligands, serving to re-emphasize the translational possibilities of natural products in drug discovery. In this review, the natural ligands of nuclear receptors will be described with an emphasis on their mechanisms of action and their therapeutic potentials, as well as on strategies to determine potential marine natural products as nuclear receptor modulators.
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Affiliation(s)
- Chunyan Yang
- State Key Laboratory of Cellular Stress Biology, Innovation Center of Cell Biology Research, School of Life Sciences, Xiamen University, Xiamen 361102, China.
| | - Qianrong Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center of Cell Biology Research, School of Life Sciences, Xiamen University, Xiamen 361102, China.
| | - Yong Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center of Cell Biology Research, School of Life Sciences, Xiamen University, Xiamen 361102, China.
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40
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Raslan AA, Lee JH, Shin J, Shin YK, Sohn YC. Transcriptional activity and expression of liver X receptor in the ascidian Halocynthia roretzi. Zoolog Sci 2013; 30:731-41. [PMID: 24004079 DOI: 10.2108/zsj.30.731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Liver X receptors, LXRs, are ligand-activated transcription factors that belong to the group H nuclear receptor (NR) superfamily. In this study, an LXR (HrLXR) cDNA was cloned from the ascidian Halocynthia roretzi hepatopancreas and characterized to examine the functional conservation of ancestral LXRs in chordates. A phylogenetic analysis of HrLXR showed that it belongs to the tunicate (urochordate) LXR subgroup, which is distinct from vertebrate LXRs. Quantitative real-time PCR analysis revealed that HrLXR mRNA was expressed predominantly in the gills, and highly expressed in unfertilized eggs followed by decrease at later embryonic and larval stages. Unexpectedly, HrLXR was not activated by GW3965, whereas a synthetic ligand for a farnesoid X receptor, GW4064, activated HrLXR. This activation was abolished by the deletion of 51 amino acids from the N-terminus. In a mammalian two-hybrid system, HrLXR interacted with HrRXR in the presence of GW4064 or 9-cis retinoic acid. The injection of GW3965 and GW4064 in vivo increased the ATPbinding cassette sub-family G member 4 and HrLXR mRNA levels in the hepatopancreas and gills. These results suggest that the mRNA expression and transcriptional properties of HrLXR are different from those of vertebrate LXRs, although HrLXR is likely responsive to the related NR ligand, GW4064.
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Affiliation(s)
- Ahmed Ahmed Raslan
- 1 Department of Marine Molecular Biotechnology, Gangneung-Wonju National University, Gangneung 210-702, Republic of Korea
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41
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Allosteric Controls of Nuclear Receptor Function in the Regulation of Transcription. J Mol Biol 2013; 425:2317-29. [DOI: 10.1016/j.jmb.2013.03.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/07/2013] [Accepted: 03/07/2013] [Indexed: 11/23/2022]
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42
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Lin HR. Paeoniflorin acts as a liver X receptor agonist. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2013; 15:35-45. [PMID: 23281636 DOI: 10.1080/10286020.2012.742510] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Paeoniflorin is one of the active ingredients of Paeonia lactiflora Pall., a novel traditional herbal medicine exerting pharmacological effects including antihyperlipidemic, neuroprotective, and anti-hepatofibrosis effects. Liver X receptor (LXR) acts as a ligand-activated transcription factor to exhibit antihyperlipidemic and neuroprotective effects. In this study, the activity of paeoniflorin against LXR was evaluated by the mammalian one-hybrid and transient transfection reporter assays. The results showed that paeoniflorin transactivated GAL4, rat cholesterol 7 α-hydroxylase, phospholipid transfer protein, and ATP-binding cassette A1 gene promoters in dose-dependent manner. Furthermore, the docking study demonstrated that paeoniflorin resided in the LXR ligand-binding pocket in the similar manner as GSK 3987, a novel LXR agonist. These results indicated that paeoniflorin might exert pharmacological effects through LXR pathway.
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Affiliation(s)
- Hsiang-Ru Lin
- Department of Chemistry, College of Science, National Kaohsiung Normal University, Taiwan.
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43
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Aoyama A, Endo-Umeda K, Kishida K, Ohgane K, Noguchi-Yachide T, Aoyama H, Ishikawa M, Miyachi H, Makishima M, Hashimoto Y. Design, Synthesis, and Biological Evaluation of Novel Transrepression-Selective Liver X Receptor (LXR) Ligands with 5,11-Dihydro-5-methyl-11-methylene-6H-dibenz[b,e]azepin-6-one Skeleton. J Med Chem 2012; 55:7360-77. [DOI: 10.1021/jm3002394] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Atsushi Aoyama
- Institute of Molecular and Cellular
Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo
113-0032, Japan
| | - Kaori Endo-Umeda
- Nihon University
School of Medicine,
30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Kenji Kishida
- Graduate School of Medicine, Dentistry
and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-Naka,
Kita-ku, Okayama 700-8530, Japan
| | - Kenji Ohgane
- Institute of Molecular and Cellular
Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo
113-0032, Japan
| | - Tomomi Noguchi-Yachide
- Institute of Molecular and Cellular
Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo
113-0032, Japan
| | - Hiroshi Aoyama
- Tokyo University of Pharmacy
and Life Sciences, 1432-1 Horinouchi, Hachioji-City, Tokyo 192-0392,
Japan
| | - Minoru Ishikawa
- Institute of Molecular and Cellular
Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo
113-0032, Japan
| | - Hiroyuki Miyachi
- Graduate School of Medicine, Dentistry
and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-Naka,
Kita-ku, Okayama 700-8530, Japan
| | - Makoto Makishima
- Nihon University
School of Medicine,
30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Yuichi Hashimoto
- Institute of Molecular and Cellular
Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo
113-0032, Japan
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44
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Structural basis for a molecular allosteric control mechanism of cofactor binding to nuclear receptors. Proc Natl Acad Sci U S A 2012; 109:E588-94. [PMID: 22355136 DOI: 10.1073/pnas.1118192109] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Transcription regulation by steroid hormones, vitamin derivatives, and metabolites is mediated by nuclear receptors (NRs), which play an important role in ligand-dependent gene expression and human health. NRs function as homodimers or heterodimers and are involved in a combinatorial, coordinated and sequentially orchestrated exchange between coregulators (corepressors, coactivators). The architecture of DNA-bound functional dimers positions the coregulators proteins. We previously demonstrated that retinoic acid (RAR-RXR) and vitamin D3 receptors (VDR-RXR) heterodimers recruit only one coactivator molecule asymmetrically without steric hindrance for the binding of a second cofactor. We now address the problem of homodimers for which the presence of two identical targets enhances the functional importance of the mode of binding. Using structural and biophysical methods and RAR as a model, we could dissect the molecular mechanism of coactivator recruitment to homodimers. Our study reveals an allosteric mechanism whereby binding of a coactivator promotes formation of nonsymmetrical RAR homodimers with a 21 stoichiometry. Ligand conformation and the cofactor binding site of the unbound receptor are affected through the dimer interface. A similar control mechanism is observed with estrogen receptor (ER) thus validating the negative cooperativity model for an established functional homodimer. Correlation with published data on other NRs confirms the general character of this regulatory pathway.
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45
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Dawson MI, Xia Z. The retinoid X receptors and their ligands. Biochim Biophys Acta Mol Cell Biol Lipids 2011; 1821:21-56. [PMID: 22020178 DOI: 10.1016/j.bbalip.2011.09.014] [Citation(s) in RCA: 258] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Revised: 08/23/2011] [Accepted: 09/23/2011] [Indexed: 12/12/2022]
Abstract
This chapter presents an overview of the current status of studies on the structural and molecular biology of the retinoid X receptor subtypes α, β, and γ (RXRs, NR2B1-3), their nuclear and cytoplasmic functions, post-transcriptional processing, and recently reported ligands. Points of interest are the different changes in the ligand-binding pocket induced by variously shaped agonists, the communication of the ligand-bound pocket with the coactivator binding surface and the heterodimerization interface, and recently identified ligands that are natural products, those that function as environmental toxins or drugs that had been originally designed to interact with other targets, as well as those that were deliberately designed as RXR-selective transcriptional agonists, synergists, or antagonists. Of these synthetic ligands, the general trend in design appears to be away from fully aromatic rigid structures to those containing partial elements of the flexible tetraene side chain of 9-cis-retinoic acid. This article is part of a Special Issue entitled Advances in High Density Lipoprotein Formation and Metabolism: A Tribute to John F. Oram (1945-2010).
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Affiliation(s)
- Marcia I Dawson
- Cancer Center, Sanford-Burn Medical Research Institute, 10901 North Torrey Pines Rd., La Jolla, CA 93207, USA.
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46
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Uitdehaag JCM, Zaman GJR. A theoretical entropy score as a single value to express inhibitor selectivity. BMC Bioinformatics 2011; 12:94. [PMID: 21486481 PMCID: PMC3100252 DOI: 10.1186/1471-2105-12-94] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Accepted: 04/12/2011] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Designing maximally selective ligands that act on individual targets is the dominant paradigm in drug discovery. Poor selectivity can underlie toxicity and side effects in the clinic, and for this reason compound selectivity is increasingly monitored from very early on in the drug discovery process. To make sense of large amounts of profiling data, and to determine when a compound is sufficiently selective, there is a need for a proper quantitative measure of selectivity. RESULTS Here we propose a new theoretical entropy score that can be calculated from a set of IC(50) data. In contrast to previous measures such as the 'selectivity score', Gini score, or partition index, the entropy score is non-arbitary, fully exploits IC(50) data, and is not dependent on a reference enzyme. In addition, the entropy score gives the most robust values with data from different sources, because it is less sensitive to errors. We apply the new score to kinase and nuclear receptor profiling data, and to high-throughput screening data. In addition, through analyzing profiles of clinical compounds, we show quantitatively that a more selective kinase inhibitor is not necessarily more drug-like. CONCLUSIONS For quantifying selectivity from panel profiling, a theoretical entropy score is the best method. It is valuable for studying the molecular mechanisms of selectivity, and to steer compound progression in drug discovery programs.
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Affiliation(s)
- Joost C M Uitdehaag
- Merck Research Laboratories, Department of Molecular Pharmacology, Oss, The Netherlands.
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