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Dong C, Montes M, Al-Sawai WM. Xanthine oxidoreductase inhibition – A review of computational aspect. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2020. [DOI: 10.1142/s0219633620400088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Xanthine Oxidoreductase (XOR) exists in a variety of organisms from bacteria to humans and catalyzes the oxidation of hypoxanthine to xanthine and from xanthine to uric acid. Excessive uric acid could lead to gout and hyperuricemia. In this paper, we have reviewed the recent computational studies on xanthine oxidase inhibition. Computational methods, such as molecular dynamics (molecular mechanics), quantum mechanics, and quantum mechanics/molecular mechanics (QM/MM), have been employed to investigate the binding affinity of xanthine oxidase with synthesized and isolated nature inhibitors. The limitations of different computational methods for xanthine oxidase inhibition studies were also discussed. Implications of the computational approach could be used to help to understand the existing arguments on substrate/product orientation in xanthine oxidase inhibition, which allows designing new inhibitors with higher efficacy.
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Affiliation(s)
- Chao Dong
- Department of Chemistry, The University of Texas of the Permian Basin, Odessa, Texas 79762, USA
| | - Milka Montes
- Department of Chemistry, The University of Texas of the Permian Basin, Odessa, Texas 79762, USA
| | - Wael M. Al-Sawai
- Department of Mathematics & Physics, The University of Texas of the Permian Basin, Odessa, Texas 79762, USA
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52
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Otani N, Ouchi M, Kudo H, Tsuruoka S, Hisatome I, Anzai N. Recent approaches to gout drug discovery: an update. Expert Opin Drug Discov 2020; 15:943-954. [PMID: 32329387 DOI: 10.1080/17460441.2020.1755251] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Inflammation induced by urate deposition in joints causes gout. Healthy individuals maintain serum levels of urate by balancing urate production/excretion, whereas a production/excretion imbalance increases urate levels. Hyperuricemia is diagnosed when the serum urate level is continuously above 7 mg/dl as the solubility limit, and urate accumulates in the kidneys and joints. Because hyperuricemia increases the risk of gout, therapies aim to eliminate urate deposition to prevent gouty arthritis and kidney injury. AREAS COVERED This review discusses the mechanism underlying hyperuricemia with respect to urate production and urate transport, along with urate-lowering therapeutics, including urate synthesis inhibitors, uricolytic enzymes, and uricosuric agents. The authors asses published data on relevant commercial therapy development projects and clinical trials. EXPERT OPINION Available treatment options for hyperuricemia are limited. Allopurinol, a urate synthesis inhibitor, is generally administered at a reduced dosage to patients with renal impairment. Some URAT1 inhibitors have an unfavorable side effect profile. A promising strategy for treatment is the use of uricosuric agents that inhibit transporters (e.g. URAT1, URATv1/GLUT9, OAT10) which reabsorb urate from the urine.
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Affiliation(s)
- Naoyuki Otani
- Department of Clinical Pharmacology and Therapeutics, Oita University Faculty of Medicine , Oita, Japan
| | - Motoshi Ouchi
- Department of Pharmacology and Toxicology, Dokkyo Medical University School of Medicine , Tochigi, Japan
| | - Hideo Kudo
- Department of Clinical Pharmacology and Therapeutics, Oita University Faculty of Medicine , Oita, Japan
| | | | - Ichiro Hisatome
- Department of Genetic Medicine and Regenerative Therapeutics, Tottori University Graduate School of Medical Science , Tottori, Japan
| | - Naohiko Anzai
- Department of Pharmacology, Chiba University Graduate School of Medicine , Chiba, Japan
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53
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Terao M, Garattini E, Romão MJ, Leimkühler S. Evolution, expression, and substrate specificities of aldehyde oxidase enzymes in eukaryotes. J Biol Chem 2020; 295:5377-5389. [PMID: 32144208 PMCID: PMC7170512 DOI: 10.1074/jbc.rev119.007741] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Aldehyde oxidases (AOXs) are a small group of enzymes belonging to the larger family of molybdo-flavoenzymes, along with the well-characterized xanthine oxidoreductase. The two major types of reactions that are catalyzed by AOXs are the hydroxylation of heterocycles and the oxidation of aldehydes to their corresponding carboxylic acids. Different animal species have different complements of AOX genes. The two extremes are represented in humans and rodents; whereas the human genome contains a single active gene (AOX1), those of rodents, such as mice, are endowed with four genes (Aox1-4), clustering on the same chromosome, each encoding a functionally distinct AOX enzyme. It still remains enigmatic why some species have numerous AOX enzymes, whereas others harbor only one functional enzyme. At present, little is known about the physiological relevance of AOX enzymes in humans and their additional forms in other mammals. These enzymes are expressed in the liver and play an important role in the metabolisms of drugs and other xenobiotics. In this review, we discuss the expression, tissue-specific roles, and substrate specificities of the different mammalian AOX enzymes and highlight insights into their physiological roles.
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Affiliation(s)
- Mineko Terao
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, via La Masa 19, 20156 Milano, Italy
| | - Enrico Garattini
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, via La Masa 19, 20156 Milano, Italy
| | - Maria João Romão
- UCIBIO-Applied Biomolecular Sciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Silke Leimkühler
- Department of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany.
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54
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Kirk ML, Kc K. Molybdenum and Tungsten Cofactors and the Reactions They Catalyze. Met Ions Life Sci 2020; 20:/books/9783110589757/9783110589757-015/9783110589757-015.xml. [PMID: 32851830 PMCID: PMC8176780 DOI: 10.1515/9783110589757-015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The last 20 years have seen a dramatic increase in our mechanistic understanding of the reactions catalyzed by pyranopterin Mo and W enzymes. These enzymes possess a unique cofactor (Moco) that contains a novel ligand in bioinorganic chemistry, the pyranopterin ene-1,2-dithiolate. A synopsis of Moco biosynthesis and structure is presented, along with our current understanding of the role Moco plays in enzymatic catalysis. Oxygen atom transfer (OAT) reactivity is discussed in terms of breaking strong metal-oxo bonds and the mechanism of OAT catalyzed by enzymes of the sulfite oxidase (SO) family that possess dioxo Mo(VI) active sites. OAT reactivity is also discussed in members of the dimethyl sulfoxide (DMSO) reductase family, which possess des-oxo Mo(IV) sites. Finally, we reveal what is known about hydride transfer reactivity in xanthine oxidase (XO) family enzymes and the formate dehydrogenases. The formal hydride transfer reactivity catalyzed by xanthine oxidase family enzymes is complex and cleaves substrate C-H bonds using a mechanism that is distinct from monooxygenases. The chapter primarily highlights developments in the field that have occurred since ~2000, which have contributed to our collective structural and mechanistic understanding of the three canonical pyranopterin Mo enzymes families: XO, SO, and DMSO reductase.
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55
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Pluth MD, Tonzetich ZJ. Hydrosulfide complexes of the transition elements: diverse roles in bioinorganic, cluster, coordination, and organometallic chemistry. Chem Soc Rev 2020; 49:4070-4134. [DOI: 10.1039/c9cs00570f] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Molecules containing transition metal hydrosulfide linkages are diverse, spanning a variety of elements, coordination environments, and redox states, and carrying out multiple roles across several fields of chemistry.
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Affiliation(s)
- Michael D. Pluth
- Department of Chemistry and Biochemistry
- Materials Science Institute
- Knight Campus for Accelerating Scientific Impact
- Institute of Molecular Biology
- University of Oregon
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56
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Tomovic K, Ilic BS, Smelcerovic Z, Miljkovic M, Yancheva D, Kojic M, Mavrova AT, Kocic G, Smelcerovic A. Benzimidazole-based dual dipeptidyl peptidase-4 and xanthine oxidase inhibitors. Chem Biol Interact 2020; 315:108873. [DOI: 10.1016/j.cbi.2019.108873] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 10/08/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022]
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57
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Kikiowo B, Ogunleye AJ, Inyang OK, Adelakun NS, Omotuyi OI, Metibemu DS, David TI, Oludoyi OO, Ijatuyi TT. Flavones scaffold of Chromolaena odorata as a potential xanthine oxidase inhibitor: Induced Fit Docking and ADME studies. ACTA ACUST UNITED AC 2019; 10:227-234. [PMID: 32983938 PMCID: PMC7502905 DOI: 10.34172/bi.2020.29] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/02/2019] [Accepted: 10/13/2019] [Indexed: 12/12/2022]
Abstract
Introduction: Gout is a type of painful inflammation initiated by the interactions between monosodium urate crystals and connective tissue. Xanthine oxidase (XO) catalyzes the oxidation of hypoxanthine to xanthine, then to uric acid. The primary treatments for gout include XO inhibitors. At present, allopurinol is the most used XO inhibitor for the treatment of gout. However, it can cause adverse effects commonly known as allopurinol hypersensitivity syndrome, thereby limiting its usage. Consequently, it is necessary to develop potent and less toxic inhibitors of XO. Chromolaena odorata is one of such plants under investigation for its diverse health benefits. Methods: Phytochemicals of C. odorata were screened against XO receptor, using molecular docking. The top five hit compounds of glide docking yield flavones scaffold which were subjected to induced fit docking (IFD) and absorption, distribution, metabolism, and excretion (ADME) studies. Results: The result showed that flavones scaffold of C. odorata can bind with higher affinity and lower free energy values when compared to that of the standard, allopurinol. The IFD scores of the flavones scaffold range from -1525.25 to -1527.99 kcal/mol. Conclusion: Our results have shown that flavones scaffold might have the potential to act as an effective drug candidate when compared to allopurinol in treating and/or preventing gout and some inflammatory condition.
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Affiliation(s)
- Babatomiwa Kikiowo
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Adewale Joseph Ogunleye
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Olumide Kayode Inyang
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Niyi Samuel Adelakun
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Olaposi Idowu Omotuyi
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Damilohun Samuel Metibemu
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Temitope Israel David
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Oluwatoyin Olajide Oludoyi
- Centre for Biocomputing and Drug Development, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria.,Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
| | - Taiwo Tolulope Ijatuyi
- Department of Biochemistry, Adekunle Ajasin University, Akungba Akoko, Ondo State, Nigeria
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58
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Zhang TJ, Zhang Y, Tu S, Wu YH, Zhang ZH, Meng FH. Design, synthesis and biological evaluation of N-(3-(1H-tetrazol-1-yl)phenyl)isonicotinamide derivatives as novel xanthine oxidase inhibitors. Eur J Med Chem 2019; 183:111717. [PMID: 31557611 DOI: 10.1016/j.ejmech.2019.111717] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/06/2019] [Accepted: 09/17/2019] [Indexed: 12/20/2022]
Abstract
In our previous study, we reported a series of N-phenylisonicotinamide derivatives as novel xanthine oxidase (XO) inhibitors and identified N-(3-cyano-4-((2-cyanobenzyl)oxy)phenyl)isonicotinamide (compound 1) as the most potent one with an IC50 value of 0.312 μM. To further optimize the structure and improve the potency, a structure-based drug design (SBDD) strategy was performed to construct the missing H-bond between the small molecule and the Asn768 residue of XO. We introduced a tetrazole moiety at the 3'-position of the phenyl to serve as an H-bond acceptor and obtained a series of N-(3-(1H-tetrazol-1-yl)phenyl)isonicotinamide derivatives (2a-t and 6-8). Besides, to investigate the influence of the amide-reversal, some N-(pyridin-4-yl)-3-(1H-tetrazol-1-yl)benzamide derivatives (3c, 3e, 3i, 3k and 3u) were also synthesized and evaluated. Biological evaluation and structure-activity relationship analysis demonstrated that the 3'-(1H-tetrazol-1-yl) moiety was an excellent fragment for the N-phenylisonicotinamide scaffold; a substituted benzyloxy, especially, an m-cyanobenzyloxy (e.g., 2s), linking at the 4'-position was welcome for the potency; and the amide-reversal could damage the potency, so maintenance of the N-phenylisonicotinamide scaffold was essential. In summary, starting from compound 1, the SBDD effort successfully identified a promising XO inhibitor 2s (IC50 = 0.031 μM), with a 10-fold gain in potency. Its potency was very close to the positive control topiroxostat (IC50 = 0.021 μM). A Lineweaver-Burk plot indicated that compound 2s acted as a mixed-type XO inhibitor. Molecular docking and molecular dynamics simulations revealed that the tetrazole moiety could occupy the Asn768-sub-pocket with N-4 atom accepting an H-bond from the Asn768 residue, as expected.
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Affiliation(s)
- Ting-Jian Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang, 110122, China
| | - Yi Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang, 110122, China
| | - Shun Tu
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang, 110122, China
| | - Yu-Hang Wu
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang, 110122, China
| | - Zhen-Hao Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang, 110122, China
| | - Fan-Hao Meng
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang, 110122, China.
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59
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Electrochemical investigation of the inhibition effect of carvacrol on xanthine oxidase activity merging with theoretical studies. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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60
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Malik N, Dhiman P, Khatkar A. Mechanistic approach towards interaction of newly synthesized Hesperidin derivatives against xanthine oxidase. Int J Biol Macromol 2019; 135:864-876. [DOI: 10.1016/j.ijbiomac.2019.04.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/26/2019] [Accepted: 04/03/2019] [Indexed: 12/21/2022]
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61
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Tang H, Zhao D. Studies of febuxostat analogues as xanthine oxidase inhibitors through 3D-QSAR, Topomer CoMFA and molecular modeling. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01726-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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62
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Wan Y, Wang F, Zou B, Shen Y, Li Y, Zhang A, Fu G. Molecular mechanism underlying the ability of caffeic acid to decrease uric acid levels in hyperuricemia rats. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.03.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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63
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Mota C, Esmaeeli M, Coelho C, Santos-Silva T, Wolff M, Foti A, Leimkühler S, Romão MJ. Human aldehyde oxidase (hAOX1): structure determination of the Moco-free form of the natural variant G1269R and biophysical studies of single nucleotide polymorphisms. FEBS Open Bio 2019; 9:925-934. [PMID: 30985987 PMCID: PMC6487702 DOI: 10.1002/2211-5463.12617] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 02/21/2019] [Indexed: 11/17/2022] Open
Abstract
Human aldehyde oxidase (hAOX1) is a molybdenum enzyme with high toxicological importance, but its physiological role is still unknown. hAOX1 metabolizes different classes of xenobiotics and is one of the main drug‐metabolizing enzymes in the liver, along with cytochrome P450. hAOX1 oxidizes and inactivates a large number of drug molecules and has been responsible for the failure of several phase I clinical trials. The interindividual variability of drug‐metabolizing enzymes caused by single nucleotide polymorphisms (SNPs) is highly relevant in pharmaceutical treatments. In this study, we present the crystal structure of the inactive variant G1269R, revealing the first structure of a molybdenum cofactor (Moco)‐free form of hAOX1. These data allowed to model, for the first time, the flexible Gate 1 that controls access to the active site. Furthermore, we inspected the thermostability of wild‐type hAOX1 and hAOX1 with various SNPs (L438V, R1231H, G1269R or S1271L) by CD spectroscopy and ThermoFAD, revealing that amino acid exchanges close to the Moco site can impact protein stability up to 10 °C. These results correlated with biochemical and structural data and enhance our understanding of hAOX1 and the effect of SNPs in the gene encoding this enzyme in the human population. Enzymes Aldehyde oxidase (EC1.2.3.1); xanthine dehydrogenase (EC1.17.1.4); xanthine oxidase (EC1.1.3.2). Databases Structural data are available in the Protein Data Bank under the accession number 6Q6Q.
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Affiliation(s)
- Cristiano Mota
- UCIBIO, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Mariam Esmaeeli
- Department of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Catarina Coelho
- UCIBIO, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Teresa Santos-Silva
- UCIBIO, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - Martin Wolff
- Department of Physical Biochemistry, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Alessandro Foti
- Department of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Silke Leimkühler
- Department of Molecular Enzymology, Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Maria João Romão
- UCIBIO, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
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Luna G, Dolzhenko AV, Mancera RL. Inhibitors of Xanthine Oxidase: Scaffold Diversity and Structure-Based Drug Design. ChemMedChem 2019; 14:714-743. [PMID: 30740924 DOI: 10.1002/cmdc.201900034] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Indexed: 12/19/2022]
Abstract
Xanthine oxidase (XO) is the enzyme responsible for the catabolism of purines and their conversion into uric acid. XO is thus the target for the treatment of hyperuricemia and gout. For more than 50 years the only XO inhibitor drug available on the market was the purine analogue allopurinol. In the last decade there has been a resurgence in the search for new inhibitors of XO, as the activity of XO and hyperuricemia have also been associated with a variety of conditions such as diabetes, hypertension, and other cardiovascular diseases. In recent years the non-purine inhibitor febuxostat was approved in Europe and the USA for the treatment of hyperuricemia. This drug was followed by another XO inhibitor called topiroxostat. This review discusses the molecular structures and activities of the multiple classes of inhibitors that have been developed since the discovery of allopurinol, with a brief review of the molecular interactions between inhibitors and XO active site residues for the most important molecules. The challenges ahead for the discovery of new inhibitors of XO with novel chemical structures are discussed.
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Affiliation(s)
- Giuseppe Luna
- School of Pharmacy and Biomedical Sciences and Curtin Health Innovation Research Institute, Curtin University, GPO Box U1987, Perth, WA, 6845, Australia
| | - Anton V Dolzhenko
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor Darul Ehsan, 47500, Malaysia
| | - Ricardo L Mancera
- School of Pharmacy and Biomedical Sciences and Curtin Health Innovation Research Institute, Curtin University, GPO Box U1987, Perth, WA, 6845, Australia
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Tejero J, Shiva S, Gladwin MT. Sources of Vascular Nitric Oxide and Reactive Oxygen Species and Their Regulation. Physiol Rev 2019; 99:311-379. [PMID: 30379623 DOI: 10.1152/physrev.00036.2017] [Citation(s) in RCA: 280] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide (NO) is a small free radical with critical signaling roles in physiology and pathophysiology. The generation of sufficient NO levels to regulate the resistance of the blood vessels and hence the maintenance of adequate blood flow is critical to the healthy performance of the vasculature. A novel paradigm indicates that classical NO synthesis by dedicated NO synthases is supplemented by nitrite reduction pathways under hypoxia. At the same time, reactive oxygen species (ROS), which include superoxide and hydrogen peroxide, are produced in the vascular system for signaling purposes, as effectors of the immune response, or as byproducts of cellular metabolism. NO and ROS can be generated by distinct enzymes or by the same enzyme through alternate reduction and oxidation processes. The latter oxidoreductase systems include NO synthases, molybdopterin enzymes, and hemoglobins, which can form superoxide by reduction of molecular oxygen or NO by reduction of inorganic nitrite. Enzymatic uncoupling, changes in oxygen tension, and the concentration of coenzymes and reductants can modulate the NO/ROS production from these oxidoreductases and determine the redox balance in health and disease. The dysregulation of the mechanisms involved in the generation of NO and ROS is an important cause of cardiovascular disease and target for therapy. In this review we will present the biology of NO and ROS in the cardiovascular system, with special emphasis on their routes of formation and regulation, as well as the therapeutic challenges and opportunities for the management of NO and ROS in cardiovascular disease.
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Affiliation(s)
- Jesús Tejero
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Sruti Shiva
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Mark T Gladwin
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
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Deciphering the inhibition effect of thymoquinone on xanthine oxidase activity using differential pulse voltammetry in combination with theoretical studies. Enzyme Microb Technol 2019; 121:29-36. [DOI: 10.1016/j.enzmictec.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 02/07/2023]
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67
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Hosoya T, Ishikawa T, Ogawa Y, Sakamoto R, Ohashi T. Multicenter, Open-Label Study of Long-Term Topiroxostat (FYX-051) Administration in Japanese Hyperuricemic Patients with or Without Gout. Clin Drug Investig 2019; 38:1135-1143. [PMID: 30219951 PMCID: PMC6267543 DOI: 10.1007/s40261-018-0699-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Background and Objectives Topiroxostat—a novel selective xanthine oxidoreductase inhibitor—has been reported to reduce serum urate levels. The purpose of this study was to assess the efficacy and safety of long-term topiroxostat administration in Japanese hyperuricemic patients with or without gout. Methods This multicenter, open-label study evaluated the efficacy and safety of long-term twice-daily oral topiroxostat administration in patients with or without gout. The initial topiroxostat dosage was 40–80 mg/day, and the maintenance dosage was 120 mg/day, which was increased to 240 mg/day at 40 mg increments if the serum urate level exceeded 6.0 mg/dL. Results Serum urate level, which was the primary endpoint, decreased stably over time and showed significant reduction on the final visit (38.44% ± 13.34%) compared with that at the baseline. Both urinary albumin/creatinine ratio and mean blood pressure significantly improved. The overall incidence rate of adverse drug reactions to topiroxostat was 67.8%; on the final visit, the rate of adverse drug reactions was 66.7% with 120 mg/day, 72.2% with 160 mg/day, 53.8% with ≥ 200 mg/day, and 100% with the other dosages. On the final visit, the incidence of gouty arthritis, for which a causal relationship with topiroxostat could not be ruled out, was 4.1% overall, 4.8% with 120 mg/day, 0% with 160 mg/day, and 7.7% with ≥ 200 mg/day. Conclusions We verified the efficacy and safety of 58-week oral topiroxostat administration at stepwise increments to up to 240 mg/day. Study Registration JAPIC CTI-101068.
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Affiliation(s)
- Tatsuo Hosoya
- Department of Pathophysiology and Therapy in Chronic Kidney Disease, Jikei University School of Medicine, Tokyo, Japan
| | - Tomohiko Ishikawa
- Medical Affairs Department, Reliability and Quality Assurance Division, Fuji Yakuhin Co., Ltd., 4-383, Sakuragi-cho, Omiya-ku, Saitama-shi, Saitama, 330-9508, Japan.
| | - Yoshimi Ogawa
- Clinical Development Department, Sanwa Kagaku Kenkyusho Co., LTD., Aichi, Japan
| | - Ryusuke Sakamoto
- R&D Planning Department, Sanwa Kagaku Kenkyusho Co., LTD., Aichi, Japan
| | - Tetsuo Ohashi
- Medical R&D Division, Fuji Yakuhin Co., Ltd., Saitama, Japan
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Abstract
In classical medicinal chemistry, nitrile groups were commonly considered as bioisosteres of carbonyl, hydroxyl and carboxyl groups, as well as halogen atoms. However, there is a lack of in-depth understanding about the structural and energetic characteristics of nitrile groups in protein–ligand interactions. Here, we have surveyed the Protein Data Bank and ChEMBL databases with the goal of characterizing such protein–ligand interactions for nitrile-containing compounds. We discuss the versatile roles of nitrile groups in improving binding affinities, and give special attention to examples of displacing and mimicking binding-site waters by nitrile groups. We expect that this review article will further inspire medicinal chemists to exploit nitrile groups rationally in structure-based drug design.
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69
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Maia LB, Moura JJG. Putting xanthine oxidoreductase and aldehyde oxidase on the NO metabolism map: Nitrite reduction by molybdoenzymes. Redox Biol 2018; 19:274-289. [PMID: 30196191 PMCID: PMC6129670 DOI: 10.1016/j.redox.2018.08.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 08/23/2018] [Accepted: 08/28/2018] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide radical (NO) is a signaling molecule involved in several physiological and pathological processes and a new nitrate-nitrite-NO pathway has emerged as a physiological alternative to the "classic" pathway of NO formation from L-arginine. Since the late 1990s, it has become clear that nitrite can be reduced back to NO under hypoxic/anoxic conditions and exert a significant cytoprotective action in vivo under challenging conditions. To reduce nitrite to NO, mammalian cells can use different metalloproteins that are present in cells to perform other functions, including several heme proteins and molybdoenzymes, comprising what we denominated as the "non-dedicated nitrite reductases". Herein, we will review the current knowledge on two of those "non-dedicated nitrite reductases", the molybdoenzymes xanthine oxidoreductase and aldehyde oxidase, discussing the in vitro and in vivo studies to provide the current picture of the role of these enzymes on the NO metabolism in humans.
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Affiliation(s)
- Luisa B Maia
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - José J G Moura
- LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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70
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Mota C, Coelho C, Leimkühler S, Garattini E, Terao M, Santos-Silva T, Romão MJ. Critical overview on the structure and metabolism of human aldehyde oxidase and its role in pharmacokinetics. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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71
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Computational exploration of reactive fragment for mechanism-based inhibition of xanthine oxidase. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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72
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Peng J, Li Y, Zhou Y, Zhang L, Liu X, Zuo Z. Pharmacophore modeling, molecular docking and molecular dynamics studies on natural products database to discover novel skeleton as non-purine xanthine oxidase inhibitors. J Recept Signal Transduct Res 2018; 38:246-255. [PMID: 29843539 DOI: 10.1080/10799893.2018.1476544] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Jiale Peng
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
| | - Yaping Li
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
| | - Yeheng Zhou
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
| | - Li Zhang
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
| | - Xingyong Liu
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
| | - Zhili Zuo
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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73
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Tang HJ, Li W, Zhou M, Peng LY, Wang JX, Li JH, Chen J. Design, synthesis and biological evaluation of novel xanthine oxidase inhibitors bearing a 2-arylbenzo[b]furan scaffold. Eur J Med Chem 2018; 151:849-860. [DOI: 10.1016/j.ejmech.2018.01.096] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 01/25/2018] [Accepted: 01/30/2018] [Indexed: 02/04/2023]
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74
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Li M, Yu Y, Liu J, Chen Z, Cao S. Investigation of the interaction between benzaldehyde thiosemicarbazone compounds and xanthine oxidase. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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75
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Nishiwaki K, Ohigashi K, Deguchi T, Murata K, Nakamura S, Matsuda H, Nakanishi I. Structure-Activity Relationships and Docking Studies of Hydroxychavicol and Its Analogs as Xanthine Oxidase Inhibitors. Chem Pharm Bull (Tokyo) 2018; 66:741-747. [PMID: 29695658 DOI: 10.1248/cpb.c18-00197] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hydroxychavicol (HC), which is obtained from the leaves of Piper betle LINN. (Piperaceae), inhibits xanthine oxidase (XO) with an IC50 value of 16.7 µM, making it more potent than the clinically used allopurinol (IC50=30.7 µM). Herein, a structure-activity relationship analysis of the polar part analogs of HC was conducted and an inhibitor was discovered with a potency 13 times that of HC. Kinetic studies have revealed that HC and its active analog inhibit XO in an uncompetitive manner. The binding structure prediction of these inhibitor molecules to the XO complex with xanthine suggested that both compounds (HC and its analog) could simultaneously form hydrogen bonds with xanthine and XO.
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Affiliation(s)
- Keiji Nishiwaki
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
| | - Kanae Ohigashi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
| | - Takahiro Deguchi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
| | - Kazuya Murata
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
| | - Shinya Nakamura
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
| | - Hideaki Matsuda
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
| | - Isao Nakanishi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Kindai University
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Meng X, Mao Z, Li X, Zhong D, Li M, Jia Y, Wei J, Yang B, Zhou H. Baicalein decreases uric acid and prevents hyperuricemic nephropathy in mice. Oncotarget 2018; 8:40305-40317. [PMID: 28445133 PMCID: PMC5522264 DOI: 10.18632/oncotarget.16928] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 03/24/2017] [Indexed: 12/28/2022] Open
Abstract
Baicalein, a natural flavonoid, is structurally advantageous for binding to xanthine oxidoreductase. In our study, molecular docking analysis and Surface Plasmon Resonance revealed a direct interaction between baicalein and xanthine oxidoreductase. Moreover, 50 mg/kg/d baicalein treatment significantly suppressed the viability of xanthine oxidoreductase in hyperuricemia mouse model. The data showed that baicalein remarkably prevented renal dysfunction, ameliorated kidney fibrosis, alleviated epithelial-mesenchymal transition and oxidative stress in hyperuricemia mice. Thus, we concluded that baicalein executed a kidney-protection action in hyperuricemia and therefore may be used as a therapeutic alternative for hyperuricemic nephropathy.
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Affiliation(s)
- Xiaolu Meng
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, P.R. China
| | - Zhuo Mao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P.R. China
| | - Xin Li
- Drug Clinical Trial Institution, The Affiliated Hospital of Qingdao University, Qingdao, 266003, P.R. China
| | - Dandan Zhong
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, P.R. China
| | - Min Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, P.R. China
| | - Yingli Jia
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, P.R. China
| | - Jing Wei
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, P.R. China
| | - Baoxue Yang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, P.R. China
| | - Hong Zhou
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, P.R. China
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77
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Nile SH, Keum YS, Nile AS, Kwon YD, Kim DH. Potential cow milk xanthine oxidase inhibitory and antioxidant activity of selected phenolic acid derivatives. J Biochem Mol Toxicol 2017; 32. [DOI: 10.1002/jbt.22005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/21/2017] [Accepted: 09/26/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Shivraj Hariram Nile
- Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; Seoul 05029 Republic of Korea
- Department of Crop Science, Sanghuh College of Life Sciences; Konkuk University; Seoul 05029 Republic of Korea
| | - Young Soo Keum
- Department of Crop Science, Sanghuh College of Life Sciences; Konkuk University; Seoul 05029 Republic of Korea
| | - Arti Shivraj Nile
- Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; Seoul 05029 Republic of Korea
| | - Young Deuk Kwon
- Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; Seoul 05029 Republic of Korea
| | - Doo Hwan Kim
- Department of Bioresources and Food Science, College of Life and Environmental Sciences; Konkuk University; Seoul 05029 Republic of Korea
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78
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Zhang TJ, Li SY, Zhang Y, Wu QX, Meng FH. Design, synthesis, and biological evaluation of 5-(4-(pyridin-4-yl)-1H
-1,2,3-triazol-1-yl)benzonitrile derivatives as xanthine oxidase inhibitors. Chem Biol Drug Des 2017; 91:526-533. [DOI: 10.1111/cbdd.13114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/15/2017] [Accepted: 09/16/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Ting-jian Zhang
- School of Pharmacy; China Medical University; Shenyang China
| | - Song-ye Li
- School of Pharmacy; China Medical University; Shenyang China
| | - Yi Zhang
- School of Pharmacy; China Medical University; Shenyang China
| | - Qing-xia Wu
- School of Pharmacy; China Medical University; Shenyang China
| | - Fan-hao Meng
- School of Pharmacy; China Medical University; Shenyang China
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79
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Yang J, Dong C, Kirk ML. Xanthine oxidase-product complexes probe the importance of substrate/product orientation along the reaction coordinate. Dalton Trans 2017; 46:13242-13250. [PMID: 28696463 PMCID: PMC5634921 DOI: 10.1039/c7dt01728f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A combination of reaction coordinate computations, resonance Raman spectroscopy, spectroscopic computations, and hydrogen bonding investigations have been used to understand the importance of substrate orientation along the xanthine oxidase reaction coordinate. Specifically, 4-thiolumazine and 2,4-dithiolumazine have been used as reducing substrates for xanthine oxidase to form stable enzyme-product charge transfer complexes suitable for spectroscopic study. Laser excitation into the near-infrared molybdenum-to-product charge transfer band produces rR enhancement patterns in the high frequency in-plane stretching region that directly probe the nature of this MLCT transition and provide insight into the effects of electron redistribution along the reaction coordinate between the transition state and the stable enzyme-product intermediate, including the role of the covalent Mo-O-C linkage in facilitating this process. The results clearly show that specific Mo-substrate orientations allow for enhanced electronic coupling and facilitate strong hydrogen bonding interactions with amino acid residues in the substrate binding pocket.
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Affiliation(s)
- Jing Yang
- Department of Chemistry and Chemical Biology, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, NM87131-0001, USA.
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80
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Ohata K, Kamijo-Ikemori A, Sugaya T, Hibi C, Nakamura T, Murase T, Oikawa T, Hoshino S, Katayama K, Asano J, Kimura K, Shibagaki Y. Renoprotective effect of the xanthine oxidoreductase inhibitor Topiroxostat under decreased angiotensin II type 1 a receptor expression. Eur J Pharmacol 2017; 815:88-97. [PMID: 28888756 DOI: 10.1016/j.ejphar.2017.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 09/02/2017] [Accepted: 09/04/2017] [Indexed: 01/13/2023]
Abstract
The aim of this study was to confirm the renoprotective effect of xanthine oxidoreductase (XOR) inhibitor, topiroxostat, compared with another XOR inhibitor, febuxostat, under decreased angiotensin II type 1a (AT1a) receptor expression in the model of renal injury caused by adenine. To evaluate the degree of tubular damage using urinary liver-type fatty acid-binding protein (L-FABP) under decreased AT1a expression, we used AT1a receptor knockdown hetero and human L-FABP chromosomal transgenic (Tg) mice (AT1a+/-L-FABP+/-). Male AT1a+/-L-FABP+/- mice were divided into two groups: the adenine diet group (n = 40) was given a diet containing only 0.2% w/w adenine, and the normal diet group (n = 5) was given a normal diet. When renal dysfunction was confirmed in the adenine diet group 4 weeks after starting the diet, the adenine diet group was further divided into five groups. The adenine diet group (n = 8) was continuously given only the adenine diet. Each group receiving high-dose (3mg/kg) or low-dose (1mg/kg) topiroxostat (Topiroxostat-H group, n = 8, Topiroxostat-L group, n = 8) or febuxostat (Febuxostat-H group, n = 8, Febuxostat-L group, n = 8) was given the adenine diet including the drug for another 4 weeks. The levels of renal XOR, renal dysfunction, urinary L-FABP, tubulointerstitial damage, hypoxia, and oxidative stress were decreased or attenuated after treatment with topiroxostat or febuxostat compared with the adenine diet group. Furthermore, antioxidant capacity was maintained owing to these treatments. In conclusion, topiroxostat and febuxostat attenuated renal damage under decreased AT1a expression in the adenine-induced renal injury model.
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Affiliation(s)
- Keiichi Ohata
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan; CMIC Holdings Company, Limited, Tokyo, Japan
| | - Atsuko Kamijo-Ikemori
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan; Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan.
| | - Takeshi Sugaya
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan; CMIC Holdings Company, Limited, Tokyo, Japan
| | - Chihiro Hibi
- Biopharmaceutical Study Group, Pharmaceutical Research Laboratories, Sanwa Kagaku Kenkyusho Company, Limited, Mie, Japan
| | - Takashi Nakamura
- Biopharmaceutical Study Group, Pharmaceutical Research Laboratories, Sanwa Kagaku Kenkyusho Company, Limited, Mie, Japan
| | - Takayo Murase
- Radioisotope and Chemical Analysis Center, Laboratory Management Department, Sanwa Kagaku Kenkyusho Company, Limited, Mie, Japan
| | | | - Seiko Hoshino
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Kimie Katayama
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Junko Asano
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | | | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
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81
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Kumar R, Joshi G, Kler H, Kalra S, Kaur M, Arya R. Toward an Understanding of Structural Insights of Xanthine and Aldehyde Oxidases: An Overview of their Inhibitors and Role in Various Diseases. Med Res Rev 2017; 38:1073-1125. [DOI: 10.1002/med.21457] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/05/2017] [Accepted: 06/13/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Raj Kumar
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Gaurav Joshi
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Harveen Kler
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Sourav Kalra
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
- Centre for Human Genetics and Molecular Medicine
| | - Manpreet Kaur
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Ramandeep Arya
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
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82
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Kato S, Kato M, Kusano T, Nishino T. New Strategy That Delays Progression of Amyotrophic Lateral Sclerosis in G1H-G93A Transgenic Mice: Oral Administration of Xanthine Oxidoreductase Inhibitors That Are Not Substrates for the Purine Salvage Pathway. J Neuropathol Exp Neurol 2017; 75:1124-1144. [PMID: 27815397 DOI: 10.1093/jnen/nlw088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS), Lou Gehrig's disease, is a progressive fatal neurodegenerative disease that involves both upper and lower motor neurons. We orally administered 4 xanthine oxidoreductase (XOR) inhibitors to G1H-G93A mice carrying 25 transgene copy numbers of human mutant G93A superoxide dismutase 1, from 80 days of age. Three nonpurine-analogue inhibitors (TEI-6720: Febuxostat, Y-700 and FYX-051), but not allopurinol with a purine analogue ring (pyrazolo pyrimidine ring), significantly delayed disease onset, prolonged survival and the duration of disease stages, improved clinical signs, and alleviated weight loss. Exercise testing (extension reflex, inclined plane, footprint, rotarod, and beam balance tests) showed significantly improved motor function in the G1H-G93A mice treated with these 3 inhibitors. Significant amelioration of disease was seen even when TEI-6720 or Y-700 was administered after the appearance of early signs. Histopathological evaluation in the late stage revealed that G1H-G93A mice treated with TEI-6720 had well-preserved motor neurons and fewer inclusion bodies, compared with mice treated with placebo or with allopurinol. Our results indicate that these 3 nonpurine-analogue XOR inhibitors might increase the supply of high-energy compounds via the purine salvage pathway, thereby protecting motor neurons against death. This strategy may be applicable for oral therapy of ALS patients.
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Affiliation(s)
- Shinsuke Kato
- From the Division of Neuropathology (SK) and the Division of Molecular Pathology (MK), Department of Pathology, Tottori University Faculty of Medicine, Yonago, Japan; and the Department of Biochemistry and Molecular Biology (TK, TN), Nippon Medical School, Tokyo, Japan
| | - Masako Kato
- From the Division of Neuropathology (SK) and the Division of Molecular Pathology (MK), Department of Pathology, Tottori University Faculty of Medicine, Yonago, Japan; and the Department of Biochemistry and Molecular Biology (TK, TN), Nippon Medical School, Tokyo, Japan
| | - Teruo Kusano
- From the Division of Neuropathology (SK) and the Division of Molecular Pathology (MK), Department of Pathology, Tottori University Faculty of Medicine, Yonago, Japan; and the Department of Biochemistry and Molecular Biology (TK, TN), Nippon Medical School, Tokyo, Japan
| | - Takeshi Nishino
- From the Division of Neuropathology (SK) and the Division of Molecular Pathology (MK), Department of Pathology, Tottori University Faculty of Medicine, Yonago, Japan; and the Department of Biochemistry and Molecular Biology (TK, TN), Nippon Medical School, Tokyo, Japan
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83
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Xanthine oxidase inhibitors beyond allopurinol and febuxostat; an overview and selection of potential leads based on in silico calculated physico-chemical properties, predicted pharmacokinetics and toxicity. Eur J Med Chem 2017; 135:491-516. [PMID: 28478180 DOI: 10.1016/j.ejmech.2017.04.031] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/28/2017] [Accepted: 04/12/2017] [Indexed: 02/06/2023]
Abstract
Xanthine oxidase (XO), a versatile metalloflavoprotein enzyme, catalyzes the oxidative hydroxylation of hypoxanthine and xanthine to uric acid in purine catabolism while simultaneously producing reactive oxygen species. Both lead to the gout-causing hyperuricemia and oxidative damage of the tissues where overactivity of XO is present. Over the past years, significant progress and efforts towards the discovery and development of new XO inhibitors have been made and we believe that not only experts in the field, but also general readership would benefit from a review that addresses this topic. Accordingly, the aim of this article was to overview and select the most potent recently reported XO inhibitors and to compare their structures, mechanisms of action, potency and effectiveness of their inhibitory activity, in silico calculated physico-chemical properties as well as predicted pharmacokinetics and toxicity. Derivatives of imidazole, 1,3-thiazole and pyrimidine proved to be more potent than febuxostat while also displaying/possessing favorable predicted physico-chemical, pharmacokinetic and toxicological properties. Although being structurally similar to febuxostat, these optimized inhibitors bear some structural freshness and could be adopted as hits for hit-to-lead development and further evaluation by in vivo studies towards novel drug candidates, and represent valuable model structures for design of novel XO inhibitors.
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84
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Reschke S, Mebs S, Sigfridsson-Clauss KGV, Kositzki R, Leimkühler S, Haumann M. Protonation and Sulfido versus Oxo Ligation Changes at the Molybdenum Cofactor in Xanthine Dehydrogenase (XDH) Variants Studied by X-ray Absorption Spectroscopy. Inorg Chem 2017; 56:2165-2176. [DOI: 10.1021/acs.inorgchem.6b02846] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Stefan Reschke
- Institut für
Biochemie und Biologie, Molekulare Enzymologie, Universität Potsdam, 14476 Potsdam, Germany
| | - Stefan Mebs
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
| | | | - Ramona Kositzki
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
| | - Silke Leimkühler
- Institut für
Biochemie und Biologie, Molekulare Enzymologie, Universität Potsdam, 14476 Potsdam, Germany
| | - Michael Haumann
- Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany
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85
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Maia LB, Moura I, Moura JJ. EPR Spectroscopy on Mononuclear Molybdenum-Containing Enzymes. FUTURE DIRECTIONS IN METALLOPROTEIN AND METALLOENZYME RESEARCH 2017. [DOI: 10.1007/978-3-319-59100-1_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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86
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Bayle EA. Modeling the transition state structure to probe a reaction mechanism on the oxidation of quinoline by quinoline 2-oxidoreductase. Chem Cent J 2016; 10:70. [PMID: 27942266 PMCID: PMC5123400 DOI: 10.1186/s13065-016-0219-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 11/10/2016] [Indexed: 11/10/2022] Open
Abstract
Background Quinoline 2-oxidoreductase (Qor) is a member of molybdenum hydroxylase which catalyzes the oxidation of quinoline (2, 3 benzopyridine) to 1-hydro-2-oxoquinoline. Qor has biological and medicinal significances. Qor is known to metabolize drugs produced from quinoline for the treatment of malaria, arthritis, and lupus for many years. However, the mechanistic action by which Qor oxidizes quinoline has not been investigated either experimentally or theoretically. Purpose of the study The present study was intended to determine the interaction site of quinoline, predict the transition state structure, and probe a plausible mechanistic route for the oxidative hydroxylation of quinoline in the reductive half-reaction active site of Qor. Results Density functional theory calculations have been carried out in order to understand the events taking place during the oxidative hydroxylation of quinoline in the reductive half-reaction active site of Qor. The most electropositivity and the lowest percentage contribution to the HOMO are shown at C2 of quinoline compared to the other carbon atoms. The transition state structure of quinoline bound to the active site has been confirmed by one imaginary negative frequency of −104.500/s and −1.2365899E+06 transition state energies. The Muliken atomic charges, the bond distances, and the bond order profiles were determined to characterize the transition state structure and the reaction mechanism. Conclusion The results have shown that C2 is the preferred locus of interaction of quinoline to interact with the active site of Qor. The transition state structure of quinoline bound to the active site has been confirmed by one imaginary negative frequency. Moreover, the presence of partial negative charges on hydrogen at the transitions state suggested hydride transfer. Similarly, results obtained from total energy, iconicity and molecular orbital analyses supported a concerted reaction mechanism.
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Affiliation(s)
- Enyew A Bayle
- Department of Chemistry, College of Natural and Computational Science, Haramaya University, Harar, Ethiopia
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87
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Hosoya T, Sasaki T, Ohashi T. Clinical efficacy and safety of topiroxostat in Japanese hyperuricemic patients with or without gout: a randomized, double-blinded, controlled phase 2b study. Clin Rheumatol 2016; 36:649-656. [PMID: 27832384 PMCID: PMC5323498 DOI: 10.1007/s10067-016-3474-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 10/27/2016] [Accepted: 10/27/2016] [Indexed: 11/03/2022]
Abstract
Topiroxostat, a selective xanthine oxidoreductase inhibitor, is used in Japan for the treatment of hyperuricemic patients with or without gout. In terms of the effectiveness of topiroxostat in lowering serum urate levels, the dose-response relationship has been evaluated; however, it remains to be verified. A randomized, multi-center, double-blinded study of topiroxostat was performed for Japanese hyperuricemic patients with or without gout. During the 16-week study, 157 Japanese hyperuricemic patients with or without gout were randomly assigned to receive a placebo, topiroxostat at 120 or 160 mg/day, or allopurinol at 200 mg/day. The primary endpoint of this study was to determine the lowering rate of serum uric acid levels compared to those of baseline at the end of administration. A dose-response relationship (regarding decreases in the serum urate levels) was confirmed for the placebo and topiroxostat at 120 and at 160 mg/day. Moreover, at the end of administration, the lowering rate of serum urate levels was determined to be -44.8% in the topiroxostat 160-mg/day group. No significant difference in the incidence of adverse events was observed among all groups, including the allopurinol group. The serum urate-lowering effect of topiroxostat was found to have a dose-response relationship in Japanese hyperuricemic patients with or without gout.
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Affiliation(s)
- Tatsuo Hosoya
- Department of Pathophysiology and Therapy in Chronic Kidney Disease, Jikei University School of Medicine, Tokyo, Japan
| | - Tomomitsu Sasaki
- Development Department, Medical R&D Division, Fuji Yakuhin Co., Ltd., 4-383, Sakuragi-cho, Omiya-ku, Saitama-shi, Saitama, 330-9508, Japan.
| | - Tetsuo Ohashi
- Development Department, Medical R&D Division, Fuji Yakuhin Co., Ltd., 4-383, Sakuragi-cho, Omiya-ku, Saitama-shi, Saitama, 330-9508, Japan
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88
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Song H, Wang H, Liang J, Qian C, Wu S, Xu W, Wu B, Liu X, Li P, Yang H. Integration of Multiple Analytical and Computational Tools for the Discovery of High‐Potency Enzyme Inhibitors from Herbal Medicines. ChemMedChem 2016; 11:2588-2597. [DOI: 10.1002/cmdc.201600489] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Hui‐Peng Song
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Hong Wang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Jin‐Xiu Liang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Cheng Qian
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Si‐Qi Wu
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Wen‐Jun Xu
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Bin Wu
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Xin‐Guang Liu
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Ping Li
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
| | - Hua Yang
- State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China
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89
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Tang HJ, Zhang XW, Yang L, Li W, Li JH, Wang JX, Chen J. Synthesis and evaluation of xanthine oxidase inhibitory and antioxidant activities of 2-arylbenzo[ b ]furan derivatives based on salvianolic acid C. Eur J Med Chem 2016; 124:637-648. [DOI: 10.1016/j.ejmech.2016.08.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 01/04/2023]
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90
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Kamijo-Ikemori A, Sugaya T, Hibi C, Nakamura T, Murase T, Oikawa T, Hoshino S, Hisamichi M, Hirata K, Kimura K, Shibagaki Y. Renoprotective effect of the xanthine oxidoreductase inhibitor topiroxostat on adenine-induced renal injury. Am J Physiol Renal Physiol 2016; 310:F1366-76. [DOI: 10.1152/ajprenal.00517.2015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 03/28/2016] [Indexed: 02/07/2023] Open
Abstract
The aim of the present study was to reveal the effect of a xanthine oxidoreductase (XOR) inhibitor, topiroxostat (Top), compared with another inhibitor, febuxostat (Feb), in an adenine-induced renal injury model. We used human liver-type fatty acid-binding protein (L-FABP) chromosomal transgenic mice, and urinary L-FABP, a biomarker of tubulointerstitial damage, was used to evaluate tubulointerstitial damage. Male transgenic mice ( n = 24) were fed a 0.2% (wt/wt) adenine-containing diet. Two weeks after the start of this diet, renal dysfunction was confirmed, and the mice were divided into the following four groups: the adenine group was given only the diet containing adenine, and the Feb, high-dose Top (Top-H), and low-dose Top (Top-L) groups were given diets containing Feb (3 mg/kg), Top-H (3 mg/kg), and Top-L (1 mg/kg) in addition to adenine for another 2 wk. After withdrawal of the adenine diet, each medication was continued for 2 wk. Serum creatinine levels, the degree of macrophage infiltration, tubulointerstitial damage, renal fibrosis, urinary 15-F2t-isoprostane levels, and renal XOR activity were significantly attenuated in the kidneys of the Feb, Top-L, and Top-H groups compared with the adenine group. Serum creatinine levels in the Top-L and Top-H groups as well as renal XOR in the Top-H group were significantly lower than those in the Feb group. Urinary excretion of L-FABP in both the Top-H and Top-L groups was significantly lower than in the adenine and Feb groups. In conclusion, Top attenuated renal damage in an adenine-induced renal injury model.
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Affiliation(s)
- Atsuko Kamijo-Ikemori
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Takeshi Sugaya
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
- CMIC Holdings Company, Limited, Tokyo, Japan; and
| | - Chihiro Hibi
- Biopharmaceutical Study Group, Pharmaceutical Research Laboratories, Sanwa Kagaku Kenkyusho Company, Limited, Mie, Japan
| | - Takashi Nakamura
- Biopharmaceutical Study Group, Pharmaceutical Research Laboratories, Sanwa Kagaku Kenkyusho Company, Limited, Mie, Japan
| | - Takayo Murase
- Radioisotope and Chemical Analysis Center, Laboratory Management Department, Sanwa Kagaku Kenkyusho Company, Limited, Mie, Japan
| | | | - Seiko Hoshino
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Mikako Hisamichi
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Kazuaki Hirata
- Department of Anatomy, St. Marianna University School of Medicine, Kanagawa, Japan
| | | | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan
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91
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Effects of topiroxostat and febuxostat on urinary albumin excretion and plasma xanthine oxidoreductase activity in db/db mice. Eur J Pharmacol 2016; 780:224-31. [DOI: 10.1016/j.ejphar.2016.03.055] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 03/24/2016] [Accepted: 03/29/2016] [Indexed: 01/08/2023]
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92
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Integrated multi-omics analyses reveal the biochemical mechanisms and phylogenetic relevance of anaerobic androgen biodegradation in the environment. ISME JOURNAL 2016; 10:1967-83. [PMID: 26872041 DOI: 10.1038/ismej.2015.255] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 11/30/2015] [Accepted: 12/04/2015] [Indexed: 02/03/2023]
Abstract
Steroid hormones, such as androgens, are common surface-water contaminants. However, literature on the ecophysiological relevance of steroid-degrading organisms in the environment, particularly in anoxic ecosystems, is extremely limited. We previously reported that Steroidobacter denitrificans anaerobically degrades androgens through the 2,3-seco pathway. In this study, the genome of Sdo. denitrificans was completely sequenced. Transcriptomic data revealed gene clusters that were distinctly expressed during anaerobic growth on testosterone. We isolated and characterized the bifunctional 1-testosterone hydratase/dehydrogenase, which is essential for anaerobic degradation of steroid A-ring. Because of apparent substrate preference of this molybdoenzyme, corresponding genes, along with the signature metabolites of the 2,3-seco pathway, were used as biomarkers to investigate androgen biodegradation in the largest sewage treatment plant in Taipei, Taiwan. Androgen metabolite analysis indicated that denitrifying bacteria in anoxic sewage use the 2,3-seco pathway to degrade androgens. Metagenomic analysis and PCR-based functional assays showed androgen degradation in anoxic sewage by Thauera spp. through the action of 1-testosterone hydratase/dehydrogenase. Our integrative 'omics' approach can be used for culture-independent investigations of the microbial degradation of structurally complex compounds where isotope-labeled substrates are not easily available.
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93
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Archaeal Mo-Containing Glyceraldehyde Oxidoreductase Isozymes Exhibit Diverse Substrate Specificities through Unique Subunit Assemblies. PLoS One 2016; 11:e0147333. [PMID: 26808202 PMCID: PMC4726530 DOI: 10.1371/journal.pone.0147333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 01/01/2016] [Indexed: 11/19/2022] Open
Abstract
Archaea use glycolytic pathways distinct from those found in bacteria and eukaryotes, where unique enzymes catalyze each reaction step. In this study, we isolated three isozymes of glyceraldehyde oxidoreductase (GAOR1, GAOR2 and GAOR3) from the thermoacidophilic archaeon Sulfolobus tokodaii. GAOR1-3 belong to the xanthine oxidoreductase superfamily, and are composed of a molybdo-pyranopterin subunit (L), a flavin subunit (M), and an iron-sulfur subunit (S), forming an LMS hetero-trimer unit. We found that GAOR1 is a tetramer of the STK17810/STK17830/STK17820 hetero-trimer, GAOR2 is a dimer of the STK23390/STK05620/STK05610 hetero-trimer, and GAOR3 is the STK24840/STK05620/STK05610 hetero-trimer. GAOR1-3 exhibited diverse substrate specificities for their electron donors and acceptors, due to their different L-subunits, and probably participate in the non-phosphorylative Entner-Doudoroff glycolytic pathway. We determined the crystal structure of GAOR2, as the first three-dimensional structure of an archaeal molybdenum-containing hydroxylase, to obtain structural insights into their substrate specificities and subunit assemblies. The gene arrangement and the crystal structure suggested that the M/S-complex serves as a structural scaffold for the binding of the L-subunit, to construct the three enzymes with different specificities. Collectively, our findings illustrate a novel principle of a prokaryotic multicomponent isozyme system.
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94
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Qi DQ, Yu CM, You JZ, Yang GH, Wang XJ, Zhang YP. Synthesis, Crystal Structures, Fluorescence and Xanthine Oxidase Inhibitory of Sulfur-Containing Pyrazole Derivatives Incorporated with Oxadiazole and Triazole. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1085047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- De-Qiang Qi
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang, PR China
- School of Science and Technology, Zhejiang International Studies University, Hangzhou, Zhejiang, PR China
| | - Chuan-Ming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang, PR China
| | - Jin-Zong You
- School of Science and Technology, Zhejiang International Studies University, Hangzhou, Zhejiang, PR China
| | - Guang-Hui Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang, PR China
| | - Xue-Jie Wang
- School of Science and Technology, Zhejiang International Studies University, Hangzhou, Zhejiang, PR China
| | - Yi-Ping Zhang
- School of Science and Technology, Zhejiang International Studies University, Hangzhou, Zhejiang, PR China
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95
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Tang H, Yang L, Li W, Li J, Chen J. Exploring the interaction between Salvia miltiorrhiza and xanthine oxidase: insights from computational analysis and experimental studies combined with enzyme channel blocking. RSC Adv 2016. [DOI: 10.1039/c6ra24396g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
An integrated approach was used to explore the interaction between Salvia miltiorrhiza and xanthine oxidase combined with enzyme channel blocking.
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Affiliation(s)
- Hongjin Tang
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Lin Yang
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Wei Li
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Jiahuang Li
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Jun Chen
- State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
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96
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Mirzaei S, Taherpour AA, Mohamadi S. Mechanistic study of allopurinol oxidation using aldehyde oxidase, xanthine oxidase and cytochrome P450 enzymes. RSC Adv 2016. [DOI: 10.1039/c6ra19197e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The oxidation reaction of allopurinol to its active metabolite (oxypurinol) is investigated using the AO and P450 enzymes. To the contrary of AO (and XO), the P450 enzyme can metabolize the allopurinol with a not self-inhibitory mechanism.
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Affiliation(s)
- Saber Mirzaei
- Department of Organic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
- Iran
| | - Avat Arman Taherpour
- Department of Organic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
- Iran
| | - Shahryar Mohamadi
- Department of Organic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
- Iran
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97
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Lin S, Zhang G, Liao Y, Pan J, Gong D. Dietary Flavonoids as Xanthine Oxidase Inhibitors: Structure-Affinity and Structure-Activity Relationships. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:7784-7794. [PMID: 26285120 DOI: 10.1021/acs.jafc.5b03386] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The flavonoid family has been reported to possess a high potential for inhibition of xanthine oxidase (XO). This study concerned the structural aspects of inhibitory activities and binding affinities of flavonoids as XO inhibitors. The result indicated that the hydrophobic interaction was important in the binding of flavonoids to XO, and the XO inhibitory ability increased generally with increasing affinities within the class of flavones and flavonols. The planar structure and the C2═C3 double bonds of flavonoids were advantageous for binding to XO and for XO inhibition. Both the hydroxylation on ring B and the substitution at C3 were unfavorable for XO inhibition more profoundly than their XO affinity. The methylation greatly reduced the inhibition (0.75-3.07 times) but hardly affected the affinity. The bulky sugar substitutions of flavonoids decreased the inhibition (1.69-1.99 times) and lowered the affinities (4.20-9.22 times) to different degrees depending on the conjunction site.
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Affiliation(s)
- Suyun Lin
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Yijing Liao
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Junhui Pan
- State Key Laboratory of Food Science and Technology, Nanchang University , 235 Nanjing East Road, Nanchang 330047, China
| | - Deming Gong
- School of Biological Sciences, The University of Auckland , Auckland 1142, New Zealand
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98
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Structural insights into xenobiotic and inhibitor binding to human aldehyde oxidase. Nat Chem Biol 2015; 11:779-83. [DOI: 10.1038/nchembio.1895] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 07/13/2015] [Indexed: 12/20/2022]
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99
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Sun ZG, Zhou XJ, Zhu ML, Ding WZ, Li Z, Zhu HL. Synthesis and Biological Evaluation of Novel Aryl-2H-pyrazole Derivatives as Potent Non-purine Xanthine Oxidase Inhibitors. Chem Pharm Bull (Tokyo) 2015; 63:603-7. [PMID: 26040271 DOI: 10.1248/cpb.c15-00282] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of aryl-2H-pyrazole derivatives were synthesized and evaluated for inhibitory activity against xanthine oxidase in vitro as potent xanthine oxidase inhibitors. Among them, 2 aryl-2H-pyrazole derivatives showed significant inhibitory activities against xanthine oxidase. Compound 19 emerged as the most potent xanthine oxidase inhibitor (IC50=9.8 µM) in comparison with allopurinol (IC50=9.5 µM). The docking study revealed that compound 19 might have strong interactions with the active site of xanthine oxidase. This compound is thus a new candidate for further development for the treatment of gout.
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Affiliation(s)
- Zhi-Gang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University
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100
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Interspecies differences in the metabolism of methotrexate: An insight into the active site differences between human and rabbit aldehyde oxidase. Biochem Pharmacol 2015; 96:288-95. [PMID: 26032640 DOI: 10.1016/j.bcp.2015.05.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/21/2015] [Indexed: 12/27/2022]
Abstract
Several drug compounds have failed in clinical trials due to extensive biotransformation by aldehyde oxidase (AOX) (EC 1.2.3.1). One of the main reasons is the difficulty in scaling clearance for drugs metabolised by AOX, from preclinical species to human. Using methotrexate as a probe substrate, we evaluated AOX metabolism in liver cytosol from human and commonly used laboratory species namely guinea pig, monkey, rat and rabbit. We found that the metabolism of methotrexate in rabbit liver cytosol was several orders of magnitude higher than any of the other species tested. The results of protein quantitation revealed that the amount of AOX1 in human liver was similar to rabbit liver. To understand if the observed differences in activity were due to structural differences, we modelled rabbit AOX1 using the previously generated human AOX1 homology model. Molecular docking of methotrexate into the active site of the enzyme led to the identification of important residues that could potentially be involved in substrate binding and account for the observed differences. In order to study the impact of these residue changes on enzyme activity, we used site directed mutagenesis to construct mutant AOX1 cDNAs by substituting nucleotides of human AOX1 with relevant ones of rabbit AOX1. AOX1 mutant proteins were expressed in Escherichia coli. Differences in the kinetic properties of these mutants have been presented in this study.
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