1
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Zimmermann H. History of ectonucleotidases and their role in purinergic signaling. Biochem Pharmacol 2020; 187:114322. [PMID: 33161020 DOI: 10.1016/j.bcp.2020.114322] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/03/2020] [Accepted: 11/03/2020] [Indexed: 12/15/2022]
Abstract
Ectonucleotidases are key for purinergic signaling. They control the duration of activity of purinergic receptor agonists. At the same time, they produce hydrolysis products as additional ligands of purinergic receptors. Due to the considerable diversity of enzymes, purinergic receptor ligands and purinergic receptors, deciphering the impact of extracellular purinergic receptor control has become a challenge. The first group of enzymes described were the alkaline phosphatases - at the time not as nucleotide-metabolizing but as nonspecific phosphatases. Enzymes now referred to as nucleoside triphosphate diphosphohydrolases and ecto-5'-nucleotidase were the first and only nucleotide-specific ectonucleotidases identified. And they were the first group of enzymes related to purinergic signaling. Additional research brought to light a surprising number of ectoenzymes with broad substrate specificity, which can also hydrolyze nucleotides. This short overview traces the development of the field and briefly highlights important results and benefits for therapies of human diseases achieved within nearly a century of investigations.
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Affiliation(s)
- Herbert Zimmermann
- Goethe University, Institute of Cell Biology and Neuroscience, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany.
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2
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Synthesis and computational studies of highly selective inhibitors of human recombinant tissue non-specific alkaline phosphatase (h-TNAP): A therapeutic target against vascular calcification. Bioorg Chem 2020; 101:103999. [PMID: 32563966 DOI: 10.1016/j.bioorg.2020.103999] [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: 02/12/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 12/11/2022]
Abstract
In this study, we have discovered small druglike molecules as selective inhibitors of human tissue-nonspecific alkaline phosphatase (h-TNAP), an enzyme critical for the regulation of extracellular matrix calcification. The upregulation of h-TNAP is associated with various pathologies particularly the vascular calcification (VC). Selective inhibition of h-TNAP over h-NPP1 may serve as a useful therapeutic strategy against vascular calcification. A series of novel triazolyl pyrazole derivatives (10a-y) in which thiol bearing triazole moiety as the zinc binding functional group was introduced to a pyrazole based pharmacophore was synthesized and evaluated as potent and selective inhibitors of h-TNAP over h-NPP1. The biological screening against h-TNAP, h-IAP, h-NPP1 and h-NPP3 showed that many of the synthesized compounds are selective inhibitors of TNAP. Particularly, the compounds 10a-h, 10j, 10m-q, 10u, 10w and 10x displayed high potency and complete selectivity towards h-TNAP over h-NPP1. Compound 10q emerged as a highly potent inhibitor (IC50 = 0.16 µM or 160 nM) against h-TNAP with 127-fold increased inhibition compared to levamisole. On the other hand, compound 10e was found to be most selective inhibitor against the tested APs and NPPs (IC50 = 1.59 ± 0.36 µM). Binding sites architecture analysis, molecular-docking and molecular dynamics simulations (MDS), revealed the basis for h-TNAP and h-IAP ligand selectivity as well as selectivity towards h-TNAP over h-NPP1. These newly discovered inhibitors are believed to represent valuable lead structures to further streamline the generation of candidate compounds to target VC.
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3
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Iqbal J, Ejaz SA, Ibrar A, Umar MI, Lecka J, Sévigny J, Saeed A. Expanding the Alkaline Phosphatase Inhibition, Cytotoxic and Proapoptotic Profile of Biscoumarin‐Iminothiazole and Coumarin‐Triazolothiadiazine Conjugates. ChemistrySelect 2018. [DOI: 10.1002/slct.201801863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jamshed Iqbal
- Centre for Advanced Drug ResearchCOMSATS University IslamabadAbbottabad Campus Abbottabad-22060 Pakistan
| | - Syeda Abida Ejaz
- Centre for Advanced Drug ResearchCOMSATS University IslamabadAbbottabad Campus Abbottabad-22060 Pakistan
| | - Aliya Ibrar
- Department of ChemistryQuaid-i-Azam University Islamabad-45320 Pakistan
| | - Muhammad Ihtisham Umar
- Department of PharmacyCOMSATS University IslamabadLahore Campus Defence Road Lahore-54000 Pakistan
| | - Joanna Lecka
- Département de microbiologie-infectiologie et d'immunologieFaculté de MédecineUniversité Laval, Québec, QC G1 V 0 A6 Canada
- Centre de Recherche du CHU de Québec – Université LavalQuébec, QC G1 V 4G2 Canada
| | - Jean Sévigny
- Département de microbiologie-infectiologie et d'immunologieFaculté de MédecineUniversité Laval, Québec, QC G1 V 0 A6 Canada
- Centre de Recherche du CHU de Québec – Université LavalQuébec, QC G1 V 4G2 Canada
| | - Aamer Saeed
- Department of ChemistryQuaid-i-Azam University Islamabad-45320 Pakistan
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Bover J, Ureña P, Aguilar A, Mazzaferro S, Benito S, López-Báez V, Ramos A, daSilva I, Cozzolino M. Alkaline Phosphatases in the Complex Chronic Kidney Disease-Mineral and Bone Disorders. Calcif Tissue Int 2018; 103:111-124. [PMID: 29445837 DOI: 10.1007/s00223-018-0399-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 01/29/2018] [Indexed: 12/16/2022]
Abstract
Alkaline phosphatases (APs) remove the phosphate (dephosphorylation) needed in multiple metabolic processes (from many molecules such as proteins, nucleotides, or pyrophosphate). Therefore, APs are important for bone mineralization but paradoxically they can also be deleterious for other processes, such as vascular calcification and the increasingly known cross-talk between bone and vessels. A proper balance between beneficial and harmful activities is further complicated in the context of chronic kidney disease (CKD). In this narrative review, we will briefly update the complexity of the enzyme, including its different isoforms such as the bone-specific alkaline phosphatase or the most recently discovered B1x. We will also analyze the correlations and potential discrepancies with parathyroid hormone and bone turnover and, most importantly, the valuable recent associations of AP's with cardiovascular disease and/or vascular calcification, and survival. Finally, a basic knowledge of the synthetic and degradation pathways of APs promises to open new therapeutic strategies for the treatment of the CKD-Mineral and Bone Disorder (CKD-MBD) in the near future, as well as for other processes such as sepsis, acute kidney injury, inflammation, endothelial dysfunction, metabolic syndrome or, in diabetes, cardiovascular complications. However, no studies have been done using APs as a primary therapeutic target for clinical outcomes, and therefore, AP's levels cannot yet be used alone as an isolated primary target in the treatment of CKD-MBD. Nonetheless, its diagnostic and prognostic potential should be underlined.
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Affiliation(s)
- Jordi Bover
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350, Barcelona, Spain.
| | - Pablo Ureña
- Department of Nephrology and Dialysis, Clinique du Landy and Department of Renal Physiology, Necker Hospital, University of Paris Descartes, Paris, France
| | - Armando Aguilar
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350, Barcelona, Spain
| | - Sandro Mazzaferro
- Department of Cardiovascular, Respiratory, Nephrologic and Geriatric Sciences, Sapienza University of Rome, Rome, Italy
| | - Silvia Benito
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350, Barcelona, Spain
| | - Víctor López-Báez
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350, Barcelona, Spain
| | - Alejandra Ramos
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350, Barcelona, Spain
| | - Iara daSilva
- Department of Nephrology, Fundació Puigvert, IIB Sant Pau, RedinRen, C. Cartagena, Catalonia, 340-350, Barcelona, Spain
| | - Mario Cozzolino
- Laboratory of Experimental Nephrology, Renal Division,San Paolo Hospital, DiSS University of Milan, Milan, Italy
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Iqbal J, El-Gamal MI, Ejaz SA, Lecka J, Sévigny J, Oh CH. Tricyclic coumarin sulphonate derivatives with alkaline phosphatase inhibitory effects: in vitro and docking studies. J Enzyme Inhib Med Chem 2018; 33:479-484. [PMID: 29390901 PMCID: PMC6009858 DOI: 10.1080/14756366.2018.1428193] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Tissue-nonspecific alkaline phosphatase (TNAP) is an important isozyme of alkaline phosphatases, which plays different pivotal roles within the human body. Most importantly, it is responsible for maintaining the balanced ratio of phosphate and inorganic pyrophosphate, thus regulates the extracellular matrix calcification during bone formation and growth. The elevated level of TNAP has been linked to vascular calcification and end-stage renal diseases. Consequently, there is a need to search for highly potent and selective inhibitors of alkaline phosphatases (APs) for treatment of disorders associated with the over-expression of APs. Herein, a series of tricyclic coumarin sulphonate 1a-za with known antiproliferative activity, was evaluated for AP inhibition against human tissue nonspecific alkaline phosphatase (h-TNAP) and human intestinal alkaline phosphatase (h-IAP). The methylbenzenesulphonate derivative 1f (IC50 = 0.38 ± 0.01 μM) was found to be the most active h-TNAP inhibitor. Another 4-fluorobenzenesulphonate derivative 1i (IC50 = 0.45 ± 0.02 μM) was found as the strongest inhibitor of h-IAP. Some of the derivatives were also identified as highly selective inhibitors of APs. Detailed structure-activity relationship (SAR) was investigated to identify the functional groups responsible for the effective inhibition of AP isozymes. The study was also supported by the docking studies to rationalise the most possible binding site interactions of the identified inhibitors with the targeted enzymes.
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Affiliation(s)
- Jamshed Iqbal
- a Centre for Advanced Drug Research , COMSATS Institute of Information Technology , Abbottabad , Pakistan
| | - Mohammed I El-Gamal
- b Department of Medicinal Chemistry, College of Pharmacy , University of Sharjah , Sharjah , United Arab Emirates.,c Sharjah Institute for Medical Research , University of Sharjah , Sharjah , United Arab Emirates.,d Department of Medicinal Chemistry , University of Mansoura , Mansoura , Egypt
| | - Syeda Abida Ejaz
- a Centre for Advanced Drug Research , COMSATS Institute of Information Technology , Abbottabad , Pakistan
| | - Joanna Lecka
- e Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine , Université Laval , Québec , Canada.,f Centre de Recherche du CHU de Québec , Université Laval , Québec , Canada
| | - Jean Sévigny
- e Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine , Université Laval , Québec , Canada.,f Centre de Recherche du CHU de Québec , Université Laval , Québec , Canada
| | - Chang-Hyun Oh
- g Center for Biomaterials , Korea Institute of Science and Technology , Seoul , Republic of Korea.,h Department of Biomolecular Science , University of Science and Technology , Daejeon , Republic of Korea
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Lim JCT, Yeong JPS, Lim CJ, Ong CCH, Wong SC, Chew VSP, Ahmed SS, Tan PH, Iqbal J. An automated staining protocol for seven-colour immunofluorescence of human tissue sections for diagnostic and prognostic use. Pathology 2018; 50:333-341. [PMID: 29429740 DOI: 10.1016/j.pathol.2017.11.087] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 02/06/2023]
Abstract
Multiplex immunofluorescence (mIF) allows simultaneous antibody-based detection and quantification of the expression of up to six markers, plus a nuclear counterstain, on a single tissue section. Recent studies have shown the potential for mIF to advance our understanding of complex disease processes, including cancer. It is important that the technique be standardised and validated to facilitate its transition into clinical use. Traditional approaches to mIF rely on manual processing of sections, which is time-consuming and a source of significant variation between samples/individuals. Here we determined if an automated diagnostic tissue stainer could be used for mIF incorporating tyramide signal amplification (TSA), and how the final image quality compared with sections stained semi-automatically or manually. Using tissue microarrays of fixed human breast tumour sections, we observed comparable antibody labelling between the diagnostic autostainer and manual technique. The diagnostic autostainer produced higher signal intensity with similar spectral unmixing efficiency. We also found that microwave treatment for antibody stripping during TSA labelling could be replaced by the heating option incorporated within the diagnostic-use autostainer. These data show that diagnostic autostainers used for traditional immunohistochemistry protocols can be readily adapted to achieve rapid preparation of high-quality sections using a TSA method for clinical mIF.
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Affiliation(s)
| | - Joe Poh Sheng Yeong
- Department of Anatomical Pathology, Singapore General Hospital, Singapore; Singapore Immunology Network, Agency of Science, Technology and Research, Singapore
| | - Chun Jye Lim
- SingHealth Translational Immunology and Inflammation Centre, Singapore
| | | | - Siew Cheng Wong
- Singapore Immunology Network, Agency of Science, Technology and Research, Singapore
| | | | | | - Puay Hoon Tan
- Division of Pathology, Singapore General Hospital, Singapore; Duke-NUS Medical School, Singapore
| | - Jabed Iqbal
- Department of Anatomical Pathology, Singapore General Hospital, Singapore; Duke-NUS Medical School, Singapore.
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7
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Farzi-Khajeh H, Safa KD, Dastmalchi S. Arsanilic acid modified superparamagnetic iron oxide nanoparticles for Purification of alkaline phosphatase from hen's egg yolk. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1061-1062:26-33. [DOI: 10.1016/j.jchromb.2017.06.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 06/24/2017] [Accepted: 06/27/2017] [Indexed: 11/28/2022]
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8
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Osteoconductive composite graft based on bacterial synthesized hydroxyapatite nanoparticles doped with different ions: From synthesis to in vivo studies. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1387-95. [PMID: 26956413 DOI: 10.1016/j.nano.2016.01.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/27/2016] [Accepted: 01/29/2016] [Indexed: 11/22/2022]
Abstract
To repair damaged bone tissues, osteoconductive bone graft substitutes are required for enhancement of the regenerative potential of osteoblast cells. Nanostructured hydroxyapatite is a bioactive ceramic used for bone tissue engineering purposes. In this study, carbonate hydroxyapatite (cHA) and zinc-magnesium substituted hydroxyapatite (Zn-Mg-HA) nanoparticles were synthesized via biomineralization method using Enterobacter aerogenes. The structural phase composition and the morphology of the samples were analyzed using appropriate powder characterization methods. Next, a composite graft was fabricated by using polyvinyl alcohol and both cHA and Zn-Mg-HA samples. In vivo osteogenic potential of the graft was then investigated in a rabbit tibial osteotomy model. Histological, radiological and morphological studies showed that the graft was mineralized by the newly formed bone tissue without signs of inflammation or infection after 4 weeks of implantation. These histomorphometric results suggest that the fabricated graft can function as a potent osteoconductive bone tissue substitute.
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9
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Yang Y, Su P, Zheng K, Wang T, Song J, Yang Y. A self-directed and reconstructible immobilization strategy: DNA directed immobilization of alkaline phosphatase for enzyme inhibition assays. RSC Adv 2016. [DOI: 10.1039/c6ra01621a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A DNA-directed immobilization technique is used to develop a common method for the reversible and self-directed immobilization of enzymes.
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Affiliation(s)
- Ye Yang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Ping Su
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Kangle Zheng
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Ting Wang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Jiayi Song
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yi Yang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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10
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Lee SY, Fiene A, Li W, Hanck T, Brylev KA, Fedorov VE, Lecka J, Haider A, Pietzsch HJ, Zimmermann H, Sévigny J, Kortz U, Stephan H, Müller CE. Polyoxometalates--potent and selective ecto-nucleotidase inhibitors. Biochem Pharmacol 2014; 93:171-81. [PMID: 25449596 DOI: 10.1016/j.bcp.2014.11.002] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/01/2014] [Accepted: 11/04/2014] [Indexed: 01/06/2023]
Abstract
Polyoxometalates (POMs) are inorganic cluster metal complexes that possess versatile biological activities, including antibacterial, anticancer, antidiabetic, and antiviral effects. Their mechanisms of action at the molecular level are largely unknown. However, it has been suggested that the inhibition of several enzyme families (e.g., phosphatases, protein kinases or ecto-nucleotidases) by POMs may contribute to their pharmacological properties. Ecto-nucleotidases are cell membrane-bound or secreted glycoproteins involved in the hydrolysis of extracellular nucleotides thereby regulating purinergic (and pyrimidinergic) signaling. They comprise four distinct families: ecto-nucleoside triphosphate diphosphohydrolases (NTPDases), ecto-nucleotide pyrophosphatases/phosphodiesterases (NPPs), alkaline phosphatases (APs) and ecto-5'-nucleotidase (eN). In the present study, we evaluated the inhibitory potency of a series of polyoxometalates as well as chalcogenide hexarhenium cluster complexes at a broad range of ecto-nucleotidases. [Co4(H2O)2(PW9O34)2](10-) (5, PSB-POM142) was discovered to be the most potent inhibitor of human NTPDase1 described so far (Ki: 3.88 nM). Other investigated POMs selectively inhibited human NPP1, [TiW11CoO40](8-) (4, PSB-POM141, Ki: 1.46 nM) and [NaSb9W21O86](18-) (6, PSB-POM143, Ki: 4.98 nM) representing the most potent and selective human NPP1 inhibitors described to date. [NaP5W30O110](14-) (8, PSB-POM144) strongly inhibited NTPDase1-3 and NPP1 and may therefore be used as a pan-inhibitor to block ATP hydrolysis. The polyoxoanionic compounds displayed a non-competitive mechanism of inhibition of NPPs and eN, but appeared to be competitive inhibitors of TNAP. Future in vivo studies with selected inhibitors identified in the current study are warranted.
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Affiliation(s)
- Sang-Yong Lee
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Amelie Fiene
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Wenjin Li
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Theodor Hanck
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany
| | - Konstantin A Brylev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russia Academy of Sciences, 3 Acad. Lavrentiev prospect, 630090 Novosibirsk, Russia; Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia
| | - Vladimir E Fedorov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russia Academy of Sciences, 3 Acad. Lavrentiev prospect, 630090 Novosibirsk, Russia; Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia
| | - Joanna Lecka
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Québec City, QC, Canada G1V 0A6; Centre de Recherche du CHU de Québec, Québec City, QC, Canada G1V 4G2
| | - Ali Haider
- School of Engineering and Science, Campus Ring 8, Jacobs University, 28759 Bremen, Germany
| | - Hans-Jürgen Pietzsch
- Institute of Radiopharmaceutical Cancer Research, Helmholtz Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Herbert Zimmermann
- Institute of Cell Biology and Neuroscience, Molecular and Cellular Neurobiology, Goethe University, 60438 Frankfurt am Main, Germany
| | - Jean Sévigny
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Québec City, QC, Canada G1V 0A6; Centre de Recherche du CHU de Québec, Québec City, QC, Canada G1V 4G2
| | - Ulrich Kortz
- School of Engineering and Science, Campus Ring 8, Jacobs University, 28759 Bremen, Germany
| | - Holger Stephan
- Institute of Radiopharmaceutical Cancer Research, Helmholtz Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Christa E Müller
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany.
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Bravo Y, Teriete P, Dhanya RP, Dahl R, Lee PS, Kiffer-Moreira T, Ganji SR, Sergienko E, Smith LH, Farquharson C, Millán JL, Cosford NDP. Design, synthesis and evaluation of benzoisothiazolones as selective inhibitors of PHOSPHO1. Bioorg Med Chem Lett 2014; 24:4308-11. [PMID: 25124115 DOI: 10.1016/j.bmcl.2014.07.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 07/04/2014] [Indexed: 11/19/2022]
Abstract
We report the discovery and characterization of a series of benzoisothiazolone inhibitors of PHOSPHO1, a newly identified soluble phosphatase implicated in skeletal mineralization and soft tissue ossification abnormalities. High-throughput screening (HTS) of a small molecule library led to the identification of benzoisothiazolones as potent and selective inhibitors of PHOSPHO1. Critical structural requirements for activity were determined, and the compounds were subsequently derivatized and measured for in vitro activity and ADME parameters including metabolic stability and permeability. On the basis of its overall profile the benzoisothiazolone analogue 2q was selected as MLPCN probe ML086.
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Affiliation(s)
- Yalda Bravo
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Peter Teriete
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Raveendra-Panickar Dhanya
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Russell Dahl
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Pooi San Lee
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Tina Kiffer-Moreira
- Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Santhi Reddy Ganji
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Eduard Sergienko
- Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Layton H Smith
- Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Colin Farquharson
- The Roslin Institute and R(D)SVS, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, Scotland, UK
| | - José Luis Millán
- Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Nicholas D P Cosford
- Cell Death and Survival Networks Research Program, NCI-Designated Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA; Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92037, USA.
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12
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Patent Highlights. Pharm Pat Anal 2014. [DOI: 10.4155/ppa.13.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A snapshot of recent key developments in the patent literature of relevance to the advancement of pharmaceutical and medical R&D
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13
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Ardecky RJ, Bobkova EV, Kiffer-Moreira T, Brown B, Ganji S, Zou J, Pass I, Narisawa S, Iano FG, Rosenstein C, Cheltsov A, Rascon J, Hedrick M, Gasior C, Forster A, Shi S, Dahl R, Vasile S, Su Y, Sergienko E, Chung TDY, Kaunitz J, Hoylaerts MF, Pinkerton AB, Millán JL. Identification of a selective inhibitor of murine intestinal alkaline phosphatase (ML260) by concurrent ultra-high throughput screening against human and mouse isozymes. Bioorg Med Chem Lett 2013; 24:1000-1004. [PMID: 24412070 DOI: 10.1016/j.bmcl.2013.12.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/06/2013] [Accepted: 12/10/2013] [Indexed: 12/31/2022]
Abstract
Alkaline phosphatase (AP) isozymes are present in a wide range of species from bacteria to man and are capable of dephosphorylation and transphosphorylation of a wide spectrum of substrates in vitro. In humans, four AP isozymes have been identified-one tissue-nonspecific (TNAP) and three tissue-specific-named according to the tissue of their predominant expression: intestinal (IAP), placental (PLAP) and germ cell (GCAP) APs. Modulation of activity of the different AP isozymes may have therapeutic implications in distinct diseases and cellular processes. For instance, changes in the level of IAP activity can affect gut mucosa tolerance to microbial invasion due to the ability of IAP to detoxify bacterial endotoxins, alter the absorption of fatty acids and affect ectopurinergic regulation of duodenal bicarbonate secretion. To identify isozyme selective modulators of the human and mouse IAPs, we developed a series of murine duodenal IAP (Akp3-encoded dIAP isozyme), human IAP (hIAP), PLAP, and TNAP assays. High throughput screening and subsequent SAR efforts generated a potent inhibitor of dIAP, ML260, with specificity for the Akp3-, compared to the Akp5- and Akp6-encoded mouse isozymes.
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Affiliation(s)
| | | | | | - Brock Brown
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Santhi Ganji
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Jiwen Zou
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Ian Pass
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Sonoko Narisawa
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | | | | | - Anton Cheltsov
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Justin Rascon
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Michael Hedrick
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Carlton Gasior
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Anita Forster
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Shenghua Shi
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Russell Dahl
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | | | - Ying Su
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | | | | | | | - Marc F Hoylaerts
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium
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14
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Debray J, Chang L, Marquès S, Pellet-Rostaing S, Le Duy D, Mebarek S, Buchet R, Magne D, Popowycz F, Lemaire M. Inhibitors of tissue-nonspecific alkaline phosphatase: Design, synthesis, kinetics, biomineralization and cellular tests. Bioorg Med Chem 2013; 21:7981-7. [DOI: 10.1016/j.bmc.2013.09.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/16/2013] [Accepted: 09/20/2013] [Indexed: 12/11/2022]
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15
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Wang S, Su P, Huang J, Wu J, Yang Y. Magnetic nanoparticles coated with immobilized alkaline phosphatase for enzymolysis and enzyme inhibition assays. J Mater Chem B 2013; 1:1749-1754. [DOI: 10.1039/c3tb00562c] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Sergienko EA, Sun Q, Ma CT. A method for direct assessment of tissue-nonspecific alkaline phosphatase (TNAP) inhibitors in blood samples. Methods Mol Biol 2013; 1053:103-113. [PMID: 23860649 DOI: 10.1007/978-1-62703-562-0_6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Tissue nonspecific alkaline phosphatase (TNAP) is one of four human alkaline phosphatases (AP), a family of exocytic enzymes that catalyze hydrolysis of phospho-monoesters in bone, liver, kidney, and various other tissues. Overexpression of TNAP gives rise to excessive bone and soft tissue mineralization, including blood vessel calcification. Our prior screening campaigns have found several leads against this attractive therapeutic target using in vitro assay with a recombinant enzyme; these compounds were further optimized using medicinal chemistry approaches. To prioritize compounds for their use in animal models, we have designed and developed a biomarker assay for in situ detection of TNAP activity within human and mouse blood samples at physiological pH. This assay is suitable for screening compounds in 1,536-well plates using blood plasma from different mammalian species. The user may choose from two different substrates based on the need for greater assay simplicity or sensitivity.
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Affiliation(s)
- Eduard A Sergienko
- Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
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17
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Kiffer-Moreira T, Yadav MC, Zhu D, Narisawa S, Sheen C, Stec B, Cosford ND, Dahl R, Farquharson C, Hoylaerts MF, MacRae VE, Millán JL. Pharmacological inhibition of PHOSPHO1 suppresses vascular smooth muscle cell calcification. J Bone Miner Res 2013; 28:81-91. [PMID: 22887744 PMCID: PMC3562655 DOI: 10.1002/jbmr.1733] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 07/20/2012] [Accepted: 07/30/2012] [Indexed: 11/09/2022]
Abstract
Medial vascular calcification (MVC) is common in patients with chronic kidney disease, obesity, and aging. MVC is an actively regulated process that resembles skeletal mineralization, resulting from chondro-osteogenic transformation of vascular smooth muscle cells (VSMCs). Here, we used mineralizing murine VSMCs to study the expression of PHOSPHO1, a phosphatase that participates in the first step of matrix vesicles-mediated initiation of mineralization during endochondral ossification. Wild-type (WT) VSMCs cultured under calcifying conditions exhibited increased Phospho1 gene expression and Phospho1(-/-) VSMCs failed to mineralize in vitro. Using natural PHOSPHO1 substrates, potent and specific inhibitors of PHOSPHO1 were identified via high-throughput screening and mechanistic analysis and two of these inhibitors, designated MLS-0390838 and MLS-0263839, were selected for further analysis. Their effectiveness in preventing VSMC calcification by targeting PHOSPHO1 function was assessed, alone and in combination with a potent tissue-nonspecific alkaline phosphatase (TNAP) inhibitor MLS-0038949. PHOSPHO1 inhibition by MLS-0263839 in mineralizing WT cells (cultured with added inorganic phosphate) reduced calcification in culture to 41.8% ± 2.0% of control. Combined inhibition of PHOSPHO1 by MLS-0263839 and TNAP by MLS-0038949 significantly reduced calcification to 20.9% ± 0.74% of control. Furthermore, the dual inhibition strategy affected the expression of several mineralization-related enzymes while increasing expression of the smooth muscle cell marker Acta2. We conclude that PHOSPHO1 plays a critical role in VSMC mineralization and that "phosphatase inhibition" may be a useful therapeutic strategy to reduce MVC.
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Affiliation(s)
- Tina Kiffer-Moreira
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
| | - Manisha C Yadav
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
| | - Dongxing Zhu
- The Roslin Institute, The University of Edinburgh, Easter Bush, Roslin, Midlothian, EH25 9RG, Scotland, UK
| | - Sonoko Narisawa
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
| | - Campbell Sheen
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
| | - Boguslaw Stec
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
| | - Nicholas D. Cosford
- Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Russell Dahl
- Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | - Colin Farquharson
- The Roslin Institute, The University of Edinburgh, Easter Bush, Roslin, Midlothian, EH25 9RG, Scotland, UK
| | - Marc. F. Hoylaerts
- Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium
| | - Vicky E. MacRae
- The Roslin Institute, The University of Edinburgh, Easter Bush, Roslin, Midlothian, EH25 9RG, Scotland, UK
| | - José Luis Millán
- Sanford Children’s Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
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18
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Bobkova EV, Kiffer-Moreira T, Sergienko EA. Modulators of intestinal alkaline phosphatase. Methods Mol Biol 2013; 1053:135-144. [PMID: 23860652 DOI: 10.1007/978-1-62703-562-0_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Small molecule modulators of phosphatases can lead to clinically useful drugs and serve as invaluable tools to study functional roles of various phosphatases in vivo. Here, we describe lead discovery strategies for identification of inhibitors and activators of intestinal alkaline phosphatases. To identify isozyme-selective inhibitors and activators of the human and mouse intestinal alkaline phosphatases, ultrahigh throughput chemiluminescent assays, utilizing CDP-Star as a substrate, were developed for murine intestinal alkaline phosphatase (mIAP), human intestinal alkaline phosphatase (hIAP), human placental alkaline phosphatase (PLAP), and human tissue-nonspecific alkaline phosphatase (TNAP) isozymes. Using these 1,536-well assays, concurrent HTS screens of the MLSMR library of 323,000 compounds were conducted for human and mouse IAP isozymes monitoring both inhibition and activation. This parallel screening approach led to identification of a novel inhibitory scaffold selective for murine intestinal alkaline phosphatase. SAR efforts based on parallel testing of analogs against different AP isozymes generated a potent inhibitor of the murine IAP with IC50 of 540 nM, at least 65-fold selectivity against human TNAP, and >185 selectivity against human PLAP.
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Affiliation(s)
- Ekaterina V Bobkova
- Conrad Prebys Center for Chemical Genomics, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
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Millán JL, Plotkin H. Hypophosphatasia - pathophysiology and treatment. ACTUALIZACIONES EN OSTEOLOGIA 2012; 8:164-182. [PMID: 25254037 PMCID: PMC4171060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hypophosphatasia (HPP) is the inborn-error-of-metabolism caused by loss-of-function mutation(s) in the gene that encodes the tissue-nonspecific isozyme of alkaline phosphatase (TNAP). The disease has been classified according to patient age when the first signs and symptoms manifest; i.e., perinatal, infantile, childhood, adult HPP. Other types include odonto HPP and perinatal benign. Babies with the perinatal/infantile forms of HPP often die with severe rickets and respiratory insufficiency and sometimes hypercalcemia and vitamin B6-responsive seizures. The primary biochemical defect in HPP is a deficiency of TNAP activity that leads to elevated circulating levels of substrates, in particular inorganic pyrophosphate (PPi), a potent calcification inhibitor. To-date, the management of HPP has been essentially symptomatic or orthopedic. However, enzyme replacement therapy with mineral-targeting TNAP (sALP-FcD10, also known as ENB-0040 or asfotase alfa) has shown promising results in a mouse model of HPP (Alpl-/- mice). Administration of mineral-targeting TNAP from birth increased survival and prevented the seizures, rickets, as well as all the tooth abnormalities, including dentin, acellular cementum, and enamel defects in this model of severe HPP. Clinical trials using mineral-targeting TNAP in children 3 years of age or younger with life-threatening HPP was associated with healing of the skeletal manifestations of HPP as well as improved respiratory and motor function. Improvement is still being observed in the patients receiving continued asfotase alfa therapy, with more than 3 years of treatment in some children. Enzyme replacement therapy with asfotase alfa has to-date been successful in patients with life-threatening HPP.
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Affiliation(s)
- José Luis Millán
- Sanford Children's Health Research center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
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20
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Iqbal J. An enzyme immobilized microassay in capillary electrophoresis for characterization and inhibition studies of alkaline phosphatases. Anal Biochem 2011; 414:226-31. [PMID: 21439261 DOI: 10.1016/j.ab.2011.03.021] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 03/17/2011] [Accepted: 03/18/2011] [Indexed: 10/18/2022]
Abstract
A simple and fast dynamically coated capillary electrophoretic method was developed for the characterization and inhibition studies of alkaline phosphatases(EC 3.1.3.1). An inside capillary enzymatic reaction was performed, and hydrolysis of the substrate 4-nitrophenylphosphate to 4-nitrophenol was measured. Fused-silica capillary surface was dynamically modified with polycationic polybrene coating. By reversal of the electroosmotic flow (EOF), analysis time was reduced up to 3 min as the anionic analytes were migrated in the same direction as the EOF. Furthermore, the sensitivity of the method was increased using electroinjection through high-field amplified injection. The baseline separation of 4-nitrophenylphosphate and 4-nitrophenol was achieved by employing 50 mM sodium phosphate as the running buffer (pH 8.5), 0.0025% polybrene, and a constant voltage of -15 kV, and the products were detected at 322 nm. Under the optimized conditions, a good separation with high efficiency was achieved. The new method was applied to study enzyme kinetics and inhibitor screening. K(m) and K(i) values obtained with the new CE method were compared well with the standard spectrophotometric method. Dynamic coating of fused-silica capillary gave fast and reproducible separation of substrate and product. The method can be easily optimized for inhibition studies of other isozymes.
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Affiliation(s)
- Jamshed Iqbal
- Department of Pharmaceutical Sciences, COMSATS Institute of Information Technology, Abbottabad, Pakistan.
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21
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Qian Y, Shi J, Chen Y, Lou L, Cui X, Cao R, Li P, Tang J. Characterization of phosphate solubilizing bacteria in sediments from a shallow eutrophic lake and a wetland: isolation, molecular identification and phosphorus release ability determination. Molecules 2010; 15:8518-33. [PMID: 21102378 PMCID: PMC6259162 DOI: 10.3390/molecules15118518] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2010] [Revised: 11/16/2010] [Accepted: 11/17/2010] [Indexed: 11/16/2022] Open
Abstract
The transformation of phosphorus (P) is a major factor of lake eutrophication, and phosphate releasing bacteria play an important role in the release process. Experiments were conducted to investigate P content and characterize phosphate solubilizing bacterial composition at the molecular level in a shallow eutrophic lake and a wetland. Results showed that P concentrations were relatively high and derived from agricultural runoff and domestic or industrial pollution. Enumeration and molecular identification of these strains indicated that these bacterial groups were abundant in the ecosystem and various kinds of bacteria participated in the phosphorus release process. Twelve phosphate solubilizing bacteria, including eight organic P-solubilizing bacteria (OPBs) and four inorganic P-solubilizing bacteria (IPBs), which belonged to three different families, were isolated and identified. Cupriavidus basilensis was found for the first time to have the ability to mineralize organic P (OP). Laboratory tests on P release ability revealed that IPBs were more effective at releasing P than OPBs. The most efficient IPB strain could accumulate over 170 mg·L-1 orthophosphate, while the equivalent OPB strain only liberated less than 4 mg·L-1 orthophosphate in liquid culture. The results obtained from this investigation should help clarify the roles of microorganisms in aquatic systems and the mechanisms of eutrophication.
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Affiliation(s)
| | - Jiyan Shi
- Author to whom correspondence should be addressed; E-Mail:
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