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Phytoestrogen Coumestrol Selectively Inhibits Monoamine Oxidase-A and Amyloid β Self-Aggregation. Nutrients 2022; 14:nu14183822. [PMID: 36145197 PMCID: PMC9502896 DOI: 10.3390/nu14183822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/22/2022] Open
Abstract
Pueraria lobata leaves contain a variety of phytoestrogens, including flavonoids, isoflavonoids, and coumestan derivatives. In this study, we aimed to identify the active ingredients of P. lobata leaves and to elucidate their function in monoamine oxidase (MAO) activation and Aβ self-aggregation using in vitro and in silico approaches. To the best of our knowledge, this is the first study to elucidate coumestrol as a selective and competitive MAO-A inhibitor. We identified that coumestrol, a coumestan-derivative, exhibited a selective inhibitory effect against MAO-A (IC50 = 1.99 ± 0.68 µM), a key target protein for depression. In a kinetics analysis with 0.5 µg MAO-A, 40–160 µM substrate, and 25 °C reaction conditions, coumestrol acts as a competitive MAO-A inhibitor with an inhibition constant of 1.32 µM. During an in silico molecular docking analysis, coumestrol formed hydrogen bonds with FAD and pi–pi bonds with hydrophobic residues at the active site of the enzyme. Moreover, based on thioflavin-T-based fluorometric assays, we elucidated that coumestrol effectively prevented self-aggregation of amyloid beta (Aβ), which induces an inflammatory response in the central nervous system (CNS) and is a major cause of Alzheimer’s disease (AD). Therefore, coumestrol could be used as a CNS drug to prevent diseases such as depression and AD by the inhibition of MAO-A and Aβ self-aggregation.
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2
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Tarpley M, Oladapo HO, Strepay D, Caligan TB, Chdid L, Shehata H, Roques JR, Thomas R, Laudeman CP, Onyenwoke RU, Darr DB, Williams KP. Identification of harmine and β-carboline analogs from a high-throughput screen of an approved drug collection; profiling as differential inhibitors of DYRK1A and monoamine oxidase A and for in vitro and in vivo anti-cancer studies. Eur J Pharm Sci 2021; 162:105821. [PMID: 33781856 PMCID: PMC8404221 DOI: 10.1016/j.ejps.2021.105821] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/25/2021] [Accepted: 03/21/2021] [Indexed: 12/16/2022]
Abstract
DYRK1A (dual-specificity tyrosine phosphorylation-regulated kinase 1a) is highly expressed in glioma, an aggressive brain tumor, and has been proposed as a therapeutic target for cancer. In the current study, we have used an optimized and validated time-resolved fluorescence energy transfer (TR-FRET)-based DYRK1A assay for high-throughput screening (HTS) in 384-well format. A small-scale screen of the FDA-approved Prestwick drug collection identified the β-carboline, harmine, and four related analogs as DYRK1A inhibitors. Hits were confirmed by dose response and in an orthogonal DYRK1A assay. Harmine's potential therapeutic use has been hampered by its off-target activity for monoamine oxidase A (MAO-A) which impacts multiple nervous system targets. Selectivity profiling of harmine and a broader collection of analogs allowed us to map some divergent SAR (structure-activity relationships) for the DYRK1A and MAO-A activities. The panel of harmine analogs had varying activities in vitro in glioblastoma (GBM) cell lines when tested for anti-proliferative effects using a high content imaging assay. In particular, of the identified analogs, harmol was found to have the best selectivity for DYRK1A over MAO-A and, when tested in a glioma tumor xenograft model, harmol demonstrated a better therapeutic window compared to harmine.
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Affiliation(s)
- Michael Tarpley
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA
| | - Helen O Oladapo
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA; INBS PhD Program, North Carolina Central University, Durham, NC 27707, USA
| | - Dillon Strepay
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA
| | - Thomas B Caligan
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA
| | - Lhoucine Chdid
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA
| | - Hassan Shehata
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA; INBS PhD Program, North Carolina Central University, Durham, NC 27707, USA
| | - Jose R Roques
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27514, USA
| | - Rhashad Thomas
- Department of Pharmaceutical Sciences; North Carolina Central University, Durham, NC 27707, USA
| | - Christopher P Laudeman
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA
| | - Rob U Onyenwoke
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA; Department of Pharmaceutical Sciences; North Carolina Central University, Durham, NC 27707, USA
| | - David B Darr
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27514, USA
| | - Kevin P Williams
- Biomanufacturing Research Institute and Technology Enterprise, North Carolina Central University, Durham, NC 27707, USA; Department of Pharmaceutical Sciences; North Carolina Central University, Durham, NC 27707, USA.
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3
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Ma S, Chen G, Xu J, Liu Y, Li G, Chen T, Li Y, James TD. Current strategies for the development of fluorescence-based molecular probes for visualizing the enzymes and proteins associated with Alzheimer’s disease. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213553] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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4
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Love AC, Prescher JA. Seeing (and Using) the Light: Recent Developments in Bioluminescence Technology. Cell Chem Biol 2020; 27:904-920. [PMID: 32795417 PMCID: PMC7472846 DOI: 10.1016/j.chembiol.2020.07.022] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/10/2020] [Accepted: 07/24/2020] [Indexed: 02/08/2023]
Abstract
Bioluminescence has long been used to image biological processes in vivo. This technology features luciferase enzymes and luciferin small molecules that produce visible light. Bioluminescent photons can be detected in tissues and live organisms, enabling sensitive and noninvasive readouts on physiological function. Traditional applications have focused on tracking cells and gene expression patterns, but new probes are pushing the frontiers of what can be visualized. The past few years have also seen the merger of bioluminescence with optogenetic platforms. Luciferase-luciferin reactions can drive light-activatable proteins, ultimately triggering signal transduction and other downstream events. This review highlights these and other recent advances in bioluminescence technology, with an emphasis on tool development. We showcase how new luciferins and engineered luciferases are expanding the scope of optical imaging. We also highlight how bioluminescent systems are being leveraged not just for sensing-but also controlling-biological processes.
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Affiliation(s)
- Anna C Love
- Department of Chemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Jennifer A Prescher
- Department of Chemistry, University of California, Irvine, Irvine, CA 92697, USA; Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA; Department of Pharmaceutical Sciences, University of California, Irvine, Irvine, CA 92697, USA.
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5
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The Antiproliferative Effects of Flavonoid MAO Inhibitors on Prostate Cancer Cells. Molecules 2020; 25:molecules25092257. [PMID: 32403270 PMCID: PMC7249060 DOI: 10.3390/molecules25092257] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 04/30/2020] [Accepted: 05/07/2020] [Indexed: 01/23/2023] Open
Abstract
Prostate cancer (PCa) patients commonly experience clinical depression. Recent reports indicated that monoamine oxidase-A (MAO-A) levels elevate in PCa, and antidepressant MAO-Is show anti-PCa properties. In this work, we aimed to find potential drugs for PCa patients suffering from depression by establishing novel anti-PCa reversible monoamine oxidase-A inhibitors (MAO-AIs/RIMA); with an endeavor to understand their mechanism of action. In this investigation, twenty synthesized flavonoid derivatives, defined as KKR compounds were screened for their inhibitory potentials against human MAO-A and MAO-B isozymes. Meanwhile, the cytotoxic and antiproliferative effects were determined in three human PCa cell lines. MAO-A-kinetics, molecular docking, SAR, cell morphology, and cell migration were investigated for the most potent compounds. The screened KKRs inhibited MAO-A more potently than MAO-B, and non-toxically inhibited LNCaP cell proliferation more than the DU145 and PC3 cell lines, respectively. The results showed that the three top MAO-AI KKRs compounds (KKR11, KKR20, and KKR7 (IC50s 0.02-16 μM) overlapped with the top six antiproliferative KKRs against LNCaP (IC50s ~9.4 μM). While KKR21 (MAO-AI) and KKR2A (MAO-I) were ineffective against the PCa cells. Furthermore, KKR21 and KKR11 inhibited MAO-A competitively (Kis ≤ 7.4 nM). Molecular docking of the two compounds predicted shared hydrophobic and distinctive hydrophilic interactions-between the KKR molecule and MAO-A amino acid residues-to be responsible for their reversibility. The combined results and SAR observations indicated that the presence of specific active groups-such as chlorine and hydroxyl groups-are essential in certain MAO-AIs with anti-PCa effects. Additionally, MAO-A inhibition was found to be associated more with anti-PCa property than MAO-B. Distinctively, KKR11 [(E)-3-(3,4-dichlorophenyl)-1-(2-hydroxy-4,6-dimethoxyphenyl)prop-2-en-1-one] exhibited anti-metastatic effects on the DU145 cell line. The chlorine substitution groups might play vital roles in the KKR11 multiple actions. The obtained results indicated that the flavonoid derivative KKR11 could present a novel candidate for PCa patients with depression, through safe non-selective potent inhibition of MAOs.
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Bazhin AA, Chambon M, Vesin J, Bortoli J, Collins JW, Turcatti G, Chou CJ, Goun EA. A Universal Assay for Aminopeptidase Activity and Its Application for Dipeptidyl Peptidase-4 Drug Discovery. Anal Chem 2018; 91:1098-1104. [PMID: 30511572 DOI: 10.1021/acs.analchem.8b04672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Aminopeptidases, such as dipeptidyl peptidase-4 (DPP-4, CD26), are potent therapeutic targets for pharmacological interventions because they play key roles in many important pathological pathways. To analyze aminopeptidase activity in vitro (including high-throughput screening [HTS]), in vivo, and ex vivo, we developed a highly sensitive and quantitative bioluminescence-based readout method. We successfully applied this method to screening drugs with potential DPP-4 inhibitory activity. Using this method, we found that cancer drug mitoxantrone possesses significant DPP-4 inhibitory activity both in vitro and in vivo. The pharmacophore of mitoxantrone was further investigated by testing a variety of its structural analogues.
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Affiliation(s)
| | | | | | | | | | | | - Chieh Jason Chou
- Microbiome and Metabolism , Nestlé Institute of Health Sciences SA , Lausanne 1015 , Switzerland
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Dhabal S, Das P, Biswas P, Kumari P, Yakubenko VP, Kundu S, Cathcart MK, Kundu M, Biswas K, Bhattacharjee A. Regulation of monoamine oxidase A (MAO-A) expression, activity, and function in IL-13-stimulated monocytes and A549 lung carcinoma cells. J Biol Chem 2018; 293:14040-14064. [PMID: 30021838 DOI: 10.1074/jbc.ra118.002321] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 07/06/2018] [Indexed: 11/06/2022] Open
Abstract
Monoamine oxidase A (MAO-A) is a mitochondrial flavoenzyme implicated in the pathogenesis of atherosclerosis and inflammation and also in many neurological disorders. MAO-A also has been reported as a potential therapeutic target in prostate cancer. However, the regulatory mechanisms controlling cytokine-induced MAO-A expression in immune or cancer cells remain to be identified. Here, we show that MAO-A expression is co-induced with 15-lipoxygenase (15-LO) in interleukin 13 (IL-13)-activated primary human monocytes and A549 non-small cell lung carcinoma cells. We present evidence that MAO-A gene expression and activity are regulated by signal transducer and activator of transcription 1, 3, and 6 (STAT1, STAT3, and STAT6), early growth response 1 (EGR1), and cAMP-responsive element-binding protein (CREB), the same transcription factors that control IL-13-dependent 15-LO expression. We further established that in both primary monocytes and in A549 cells, IL-13-stimulated MAO-A expression, activity, and function are directly governed by 15-LO. In contrast, IL-13-driven expression and activity of MAO-A was 15-LO-independent in U937 promonocytic cells. Furthermore, we demonstrate that the 15-LO-dependent transcriptional regulation of MAO-A in response to IL-13 stimulation in monocytes and in A549 cells is mediated by peroxisome proliferator-activated receptor γ (PPARγ) and that signal transducer and activator of transcription 6 (STAT6) plays a crucial role in facilitating the transcriptional activity of PPARγ. We further report that the IL-13-STAT6-15-LO-PPARγ axis is critical for MAO-A expression, activity, and function, including migration and reactive oxygen species generation. Altogether, these results have major implications for the resolution of inflammation and indicate that MAO-A may promote metastatic potential in lung cancer cells.
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Affiliation(s)
- Sukhamoy Dhabal
- From the Department of Biotechnology, National Institute of Technology-Durgapur, Mahatma Gandhi Avenue, Durgapur-713209, Burdwan, West Bengal, India
| | - Pradip Das
- From the Department of Biotechnology, National Institute of Technology-Durgapur, Mahatma Gandhi Avenue, Durgapur-713209, Burdwan, West Bengal, India
| | - Pritam Biswas
- From the Department of Biotechnology, National Institute of Technology-Durgapur, Mahatma Gandhi Avenue, Durgapur-713209, Burdwan, West Bengal, India
| | - Priyanka Kumari
- From the Department of Biotechnology, National Institute of Technology-Durgapur, Mahatma Gandhi Avenue, Durgapur-713209, Burdwan, West Bengal, India
| | - Valentin P Yakubenko
- the Department of Cell Biology, Lerner Research Institute, Cleveland Clinic, and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio 44195, and
| | - Suman Kundu
- the Department of Cell Biology, Lerner Research Institute, Cleveland Clinic, and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio 44195, and
| | - Martha K Cathcart
- the Department of Cell Biology, Lerner Research Institute, Cleveland Clinic, and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio 44195, and
| | - Manjari Kundu
- the Division of Molecular Medicine, Bose Institute, Kolkata 700054, West Bengal, India
| | - Kaushik Biswas
- the Division of Molecular Medicine, Bose Institute, Kolkata 700054, West Bengal, India
| | - Ashish Bhattacharjee
- From the Department of Biotechnology, National Institute of Technology-Durgapur, Mahatma Gandhi Avenue, Durgapur-713209, Burdwan, West Bengal, India,
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8
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Sharpe MA, Raghavan S, Baskin DS. PAM-OBG: A monoamine oxidase B specific prodrug that inhibits MGMT and generates DNA interstrand crosslinks, potentiating temozolomide and chemoradiation therapy in intracranial glioblastoma. Oncotarget 2018; 9:23923-23943. [PMID: 29844863 PMCID: PMC5963626 DOI: 10.18632/oncotarget.25246] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 04/08/2018] [Indexed: 12/31/2022] Open
Abstract
Via extensive analyses of genetic databases, we have characterized the DNA-repair capacity of glioblastoma with respect to patient survival. In addition to elevation of O6-methylguanine DNA methyltransferase (MGMT), down-regulation of three DNA repair pathways; canonical mismatch repair (MMR), Non-Homologous End-Joining (NHEJ), and Homologous Recombination (HR) are correlated with poor patient outcome. We have designed and tested both in vitro and in vivo, a monoamine oxidase B (MAOB) specific prodrug, PAM-OBG, that is converted by glioma MAOB into the MGMT inhibitor O6-benzylguanine (O6BG) and the DNA crosslinking agent acrolein. In cultured glioma cells, we show that PAM-OBG is converted to O6BG, inhibiting MGMT and sensitizing cells to DNA alkylating agents such as BCNU, CCNU, and Temozolomide (TMZ). In addition, we demonstrate that the acrolein generated is highly toxic in glioma treated with an inhibitor of Nucleotide Excision Repair (NER). In mouse intracranial models of primary human glioma, we show that PAM-OBG increases survival of mice treated with either BCNU or CCNU by a factor of six and that in a chemoradiation model utilizing six rounds of TMZ/2Gy radiation, pre-treatment with PAM-OBG more than doubled survival time.
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Affiliation(s)
- Martyn A Sharpe
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, TX 77030, Houston, USA
| | - Sudhir Raghavan
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, TX 77030, Houston, USA
| | - David S Baskin
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, TX 77030, Houston, USA
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9
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Mergemeier K, Lehr M. HPLC-UV assays for evaluation of inhibitors of mono and diamine oxidases using novel phenyltetrazolylalkanamine substrates. Anal Biochem 2018; 549:29-38. [PMID: 29550344 DOI: 10.1016/j.ab.2018.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/05/2018] [Accepted: 03/12/2018] [Indexed: 10/17/2022]
Abstract
Recently, we have described an HPLC-UV assay for the evaluation of inhibitors of plasma amine oxidase (PAO) using 6-(5-phenyl-2H-tetrazol-2-yl)hexan-1-amine (4) as a new type of substrate. Now we studied, whether this compound or homologues of it can also function as substrate for related amine oxidases, namely diamine oxidase (DAO), monoamine oxidase A (MAO A) and monoamine oxidase B (MAO B). Among these substances, 4 was converted by DAO with the highest rate. The best substrate for MAO A and B was 4-(5-phenyl-2H-tetrazol-2-yl)butan-1-amine (2). To validate the new assays, the inhibition values of known enzyme inhibitors were determined and the data were compared with those obtained with the substrate benzylamine, which is often used in amine oxidase assays. For the DAO inhibitor 2-(4-phenylphenyl)acetohydrazide an about 10fold lower IC50-value against DAO was obtained when benzylamine was applied instead of 4, indicating that 4 binds to the enzyme with higher affinity than benzylamine. The IC50-values of clorgiline and selegiline against MAO A and B, respectively, also decreased (two- and 30fold) replacing 2 by benzylamine. The discrepancies largely disappeared, when the enzymes were pre-incubated with the inhibitors for 15 min. This can be explained with the covalent inhibition mechanism of the inhibitors.
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Affiliation(s)
- Kira Mergemeier
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany
| | - Matthias Lehr
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany.
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11
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Sharifian S, Homaei A, Hemmati R, B Luwor R, Khajeh K. The emerging use of bioluminescence in medical research. Biomed Pharmacother 2018; 101:74-86. [PMID: 29477474 DOI: 10.1016/j.biopha.2018.02.065] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 02/13/2018] [Accepted: 02/15/2018] [Indexed: 01/01/2023] Open
Abstract
Bioluminescence is the light produced by a living organism and is commonly emitted by sea life with Ca2+-regulated photoproteins being the most responsible for bioluminescence emission. Marine coelenterates provide important functions involved in essential purposes such as defense, feeding, and breeding. In this review, the main characteristics of marine photoproteins including aequorin, clytin, obelin, berovin, pholasin and symplectin from different marine organisms will be discussed. We will focused on the recent use of recombinant photoproteins in different biomedical research fields including the measurement of Ca2+ in different intracellular compartments of animal cells, as labels in the design and development of binding assays. This review will also outline how bioluminescent photoproteins have been used in a plethora of analytical methods including ultra-sensitive assays and in vivo imaging of cellular processes. Due to their unique properties including elective intracellular distribution, wide dynamic range, high signal-to-noise ratio and low Ca2+-buffering effect, recombinant photoproteins represent a promising future analytical tool in several in vitro and in vivo experiments.
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Affiliation(s)
- Sana Sharifian
- Department of Marine Biology, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran
| | - Ahmad Homaei
- Department of Biochemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas, Iran.
| | - Roohullah Hemmati
- Department of Biology, Faculty of Basic Sciences, Shahrekord University, Shahrekord, Iran
| | - Rodney B Luwor
- Department of Surgery, Level 5, Clinical Sciences Building, The University of Melbourne, The Royal Melbourne Hospital, Grattan Street, Parkville, VIC 3050, Australia
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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12
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Ramsay RR, Tipton KF. Assessment of Enzyme Inhibition: A Review with Examples from the Development of Monoamine Oxidase and Cholinesterase Inhibitory Drugs. Molecules 2017; 22:E1192. [PMID: 28714881 PMCID: PMC6152246 DOI: 10.3390/molecules22071192] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/10/2017] [Accepted: 07/11/2017] [Indexed: 11/16/2022] Open
Abstract
The actions of many drugs involve enzyme inhibition. This is exemplified by the inhibitors of monoamine oxidases (MAO) and the cholinsterases (ChE) that have been used for several pharmacological purposes. This review describes key principles and approaches for the reliable determination of enzyme activities and inhibition as well as some of the methods that are in current use for such studies with these two enzymes. Their applicability and potential pitfalls arising from their inappropriate use are discussed. Since inhibitor potency is frequently assessed in terms of the quantity necessary to give 50% inhibition (the IC50 value), the relationships between this and the mode of inhibition is also considered, in terms of the misleading information that it may provide. Incorporation of more than one functionality into the same molecule to give a multi-target-directed ligands (MTDLs) requires careful assessment to ensure that the specific target effects are not significantly altered and that the kinetic behavior remains as favourable with the MTDL as it does with the individual components. Such factors will be considered in terms of recently developed MTDLs that combine MAO and ChE inhibitory functions.
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Affiliation(s)
- Rona R Ramsay
- Biomedical Sciences Research Complex, University of St Andrews, St Andrews KY16 8QP, UK.
| | - Keith F Tipton
- School of Biochemistry and Immunology, Trinity College, Dublin 2, Ireland.
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Jung HA, Roy A, Jung JH, Choi JS. Evaluation of the inhibitory effects of eckol and dieckol isolated from edible brown alga Eisenia bicyclis on human monoamine oxidases A and B. Arch Pharm Res 2017; 40:480-491. [PMID: 28251489 DOI: 10.1007/s12272-017-0904-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 02/21/2017] [Indexed: 12/20/2022]
Abstract
Eckol and dieckol are important phlorotannins found in edible brown algae including Eisenia bicyclis, Ecklonia stolonifera, and others. Inhibition of monoamine oxidase (MAO) play an important role in the early management of Parkinson's disease (PD). The aim of this study was to determine the effectiveness of eckol and dieckol isolated from the methanolic extract of E. bicyclis against PD by the inhibition of human MAO-A and MAO-B (hMAO-A and hMAO-B). A sensitive enzyme-based chemiluminescent assay and kinetics methods were used to investigate enzyme inhibition and mode of inhibition. A molecular docking simulation was performed to clarify the binding characteristics of eckol and dieckol to hMAO-A and hMAO-B. The results suggested that methanolic extract of E. bicyclis and its isolated phlorotannins, eckol and dieckol, have potent inhibitory activity against hMAO-A and hMAO-B. The enzyme-based kinetics results demonstrated eckol mixed and non-competitive inhibition of hMAO-A and hMAO-B, respectively, while dieckol non-competitively inhibited both hMAOs. Molecular docking simulation predicted that eckol and dieckol exhibit higher binding affinity towards hMAO-A and hMAO-B through hydrogen bonding and hydrophobic interactions. These findings implicate eckol and dieckol as inhibitors of hMAOs that might be of potential value in the management of PD.
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Affiliation(s)
- Hyun Ah Jung
- Department of Food Science and Human Nutrition, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Anupom Roy
- Department of Food and Life Science, Pukyong National University, Busan, 608-737, Republic of Korea
| | - Jee H Jung
- College of Pharmacy, Pusan National University, Busan, 609-735, Republic of Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan, 608-737, Republic of Korea.
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14
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Zarmouh NO, Eyunni SK, Soliman KFA. The Benzopyrone Biochanin-A as a reversible, competitive, and selective monoamine oxidase B inhibitor. Altern Ther Health Med 2017; 17:34. [PMID: 28069007 PMCID: PMC5223566 DOI: 10.1186/s12906-016-1525-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 12/05/2016] [Indexed: 11/22/2022]
Abstract
Background Monoamine oxidase-B (MAO-B) inhibitors are widely used in the treatment of Parkinson’s disease. They increase vital monoamine neurotransmitters in the brain. However, there is a need for safer natural reversible MAO inhibitors with MAO-B selectivity. Our previous studies showed that Psoralea corylifolia seeds (PCS) extract contains compounds that inhibit monoamine oxidase-B. Methods In this study, six of PCS constituents sharing a benzopyrone structure were investigated. The compounds Biochanin-A (BIO-A), isopsoralen, 6-prenylnaringenin, neobavaisoflavone, psoralen, and psoralidin, were tested for their ability to inhibit recombinant human MAO-A and B (hMAO-A and hMAO-B) isozymes. The ability of these compounds to inhibit MAO-A and MAO-B were compared to that of PCS ethanolic extract (PCSEE) using spectrophotometric assays and confirmed by luminescence assays. The highly potent and selective MAO-B inhibitor, BIO-A, was further investigated for both isozymes reversibility and enzyme kinetics. Molecular docking studies were used to predict the bioactive conformation and molecular interactions of BIO-A with both isozymes. Results The data obtained indicate that benzopyrones inhibited hMAO-A and hMAO-B with different degrees as confirmed with the luminescence assay. BIO-A inhibited hMAO-B with high potency and selectivity in the present study (IC50 = 0.003 μg/mL) and showing 38-fold more selectivity than PCSEE (hMAO-B IC50 = 3.03 μg/mL, 17-fold selectivity) without affecting hydrogen peroxide. Furthermore, BIO-A reversibly and competitively inhibited both hMAOs with significantly lower inhibitory constant (Ki) in hMAO-B (3.8 nM) than hMAO-A (99.3 nM). Our docking studies indicated that the H-bonds and hydrophobic interactions at the human MAO-A and MAO-B active sites contributed to the reversibility and selectivity of BIO-A. Conclusions The data obtained indicate that BIO-A is a potent, reversible and selective MAO-B inhibitor and may be recommended for further investigation in its possible use in the therapeutic management of Parkinson’s and Alzheimer’s diseases.
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Umehara Y, Son A, Kondo T, Tanabe K. Dioxetane formation and chemiluminescent emission upon the combination of a vinylphenol derivative with naphthalene endoperoxide. RSC Adv 2017. [DOI: 10.1039/c6ra28079j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We designed a chemiluminescent system using nanoparticles.
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Affiliation(s)
- Yui Umehara
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Aoi Son
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Teruyuki Kondo
- Department of Energy and Hydrocarbon Chemistry
- Graduate School of Engineering
- Kyoto University
- Nishikyo-ku
- Japan
| | - Kazuhito Tanabe
- Department of Chemistry and Biological Science
- College of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
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Sharpe MA, Baskin DS. Monoamine oxidase B levels are highly expressed in human gliomas and are correlated with the expression of HiF-1α and with transcription factors Sp1 and Sp3. Oncotarget 2016; 7:3379-93. [PMID: 26689994 PMCID: PMC4823113 DOI: 10.18632/oncotarget.6582] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/16/2015] [Indexed: 11/25/2022] Open
Abstract
Monoamine oxidases A and B (MAOA and MAOB) are highly expressed in many cancers. Here we investigated the level of MAOB in gliomas and confirmed its high expression. We found that MAOB levels correlated with tumor grade and hypoxia-inducible factor 1-alpha (HiF-1α) expression. HiF-1α was localized to the nuclei in high-grade gliomas, but it was primarily cytosolic in low-grade gliomas and normal human astrocytes. Expression of both glial fibrillary acidic protein (GFAP) and MAOB are correlated to HiF-1α expression levels. Levels of MAOB are correlated by the levels of transcription factor Sp3 in the majority of GBM examined, but this control of MAOB expression by Sp3 in low grade astrocytic gliomas is significantly different from control in the in the majority of glioblastomas. The current findings support previous suggestions that MAOB can be exploited for the killing of cancer cells. Selective cell toxicity can be achieved by designing non-toxic prodrugs that require MAOB for their catalytic conversion into mature cytotoxic chemotherapeutics.
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Affiliation(s)
- Martyn A Sharpe
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, Houston, TX 77030, USA
| | - David S Baskin
- Department of Neurosurgery, Kenneth R. Peak Brain and Pituitary Tumor Center, Houston Methodist Hospital, Houston, TX 77030, USA
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Armijos C, Gilardoni G, Amay L, Lozano A, Bracco F, Ramirez J, Bec N, Larroque C, Finzi PV, Vidari G. Phytochemical and ethnomedicinal study of Huperzia species used in the traditional medicine of Saraguros in Southern Ecuador; AChE and MAO inhibitory activity. JOURNAL OF ETHNOPHARMACOLOGY 2016; 193:546-554. [PMID: 27686269 DOI: 10.1016/j.jep.2016.09.049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/21/2016] [Accepted: 09/25/2016] [Indexed: 05/04/2023]
Abstract
ETHNOBOTANICAL AND ETHNOMEDICINAL RELEVANCE This study concerns seven Huperzia species (Lycopodiaceae), namely H. brevifolia, H. columnaris, H. compacta, H. crassa, H. espinosana, H. tetragona, H. weberbaueri, which are considered sacred plants by the Saraguro community, living in the Southern Andes of Ecuador; these plants are widely used in traditional medicine and ritual ceremonies. MATERIAL AND METHODS The plants were selected on the basis of written interviews with 10 visionary healers (yachak) (2 women, 8 men), indicated as the most credible by the Saraguro Healers Council. The Informant Consensus Factor (Fic) was determined. The first phytochemical study of the plants was performed by standard procedures, while the AChE and MAO-A inhibition by fractions enriched in high MW alkaloids, was measured in vitro. AIMS OF THE STUDY i) to investigate the uses of some Huperzia plants in healing and magical-religious practices of Saraguros; ii) to identify the main components of plant hydromethanolic extracts; iiì) to test the effects of alkaloidal fractions on the activity of two enzymes linked to mental health. RESULTS All the interviewed Saraguro yachak showed a high consensus about the uses of the seven Huperzia plants as purgatives and against supernatural diseases, such as the "espanto" (startle). In admixtures with other plants, some species also induce a state of trance or hallucinations in participants in magical-religious rituals. GC-MS of the volatile alkaloid fractions allowed the identification of some lycodine-type and lycopodine-type alkaloids (1-5) in H. compacta, H. columnaris, and H. tetragona. The flavones selgin) (6) and tricin (7) were isolated from H. brevifolia and H. espinosana. Tricin (7) was also detected in the other five species. The rare serratene triterpenes serratenediol (8) serratenediol-3-O-acetate (9), 21-episerratenediol (10), and 21-episerratenediol-3-O-acetate (11) were isolated from H. crassa. In addition, the presence of an unprecedented group of high molecular weight alkaloids has been determined. Alkaloid fractions of H. brevifolia, H. compacta, H. espinosana, and H. tetragona significantly inhibited AChE and MAO-A activities in vitro. CONCLUSIONS The first phytochemical and ethnopharmacological study of seven Huperzia plants, widely used by Saraguro healers, led to the identification of several alkaloids and triterpenoids with different remarkable biological activities. In addition, alkaloid fractions exhibited a significant AChE and MAO-A inhibitory activity. These results may support the use of these plants in brews prepared for inducing psychoactive effects in participants in magical-religious ceremonies. This study confirms the rich traditional medical knowledge of Saraguro healers which must be documented and preserved for future generations.
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Affiliation(s)
- Chabaco Armijos
- Universidad Técnica Particular de Loja, Departamento de Química, San Cayetano Alto, s/n. AP, 1101608 Loja, Ecuador.
| | - Gianluca Gilardoni
- Universidad Técnica Particular de Loja, Departamento de Química, San Cayetano Alto, s/n. AP, 1101608 Loja, Ecuador
| | - Luis Amay
- Universidad Técnica Particular de Loja, Departamento de Química, San Cayetano Alto, s/n. AP, 1101608 Loja, Ecuador
| | - Antonio Lozano
- Comunidad de Saraguro, Barrio Illincho, Saraguro, Ecuador
| | - Francesco Bracco
- Dipartimento di Scienze della terra e dell'ambiente, Università degli Studi di Pavia, Viale S. Epifanio 14, 27100 Pavia, Italy
| | - Jorge Ramirez
- Universidad Técnica Particular de Loja, Departamento de Química, San Cayetano Alto, s/n. AP, 1101608 Loja, Ecuador
| | - Nicole Bec
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, U1194, Montpellier F-34298, France; Institut régional du Cancer de Montpellier, Montpellier F-34298, France; Université de Montpellier, Montpellier F-34090, France
| | - Christian Larroque
- IRCM, Institut de Recherche en Cancérologie de Montpellier, INSERM, U1194, Montpellier F-34298, France; Institut régional du Cancer de Montpellier, Montpellier F-34298, France; Université de Montpellier, Montpellier F-34090, France
| | - Paola Vita Finzi
- Dipartimento di Chimica e Centro CEMEC, Università degli Studi di Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Giovanni Vidari
- Dipartimento di Chimica e Centro CEMEC, Università degli Studi di Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
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A spectrophotometric assay for monoamine oxidase activity with 2, 4-dinitrophenylhydrazine as a derivatized reagent. Anal Biochem 2016; 512:18-25. [DOI: 10.1016/j.ab.2016.06.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 06/08/2016] [Accepted: 06/20/2016] [Indexed: 11/20/2022]
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Zarmouh NO, Messeha SS, Elshami FM, Soliman KFA. Natural Products Screening for the Identification of Selective Monoamine Oxidase-B Inhibitors. ACTA ACUST UNITED AC 2016; 15. [PMID: 27341283 PMCID: PMC4898948 DOI: 10.9734/ejmp/2016/26453] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims Monoamine oxidase-B inhibitors (MAO-BIs) are used for the initial therapy of Parkinson’s disease. Also, MAO-BIs have shown to be effective neuroprotective agents in several neurodegenerative diseases. However, some concerns exist regarding the long-term use of these compounds. Meanwhile, natural compounds showed potential MAO-B selective inhibitions. To date, few selective natural MAO-BIs have been identified. Therefore, the current study is designed to identify plants with potent and specific MAO-B inhibition. Study Design In this work, we utilized high throughput screening to evaluate the different plants ethanolic extract for their effectiveness to inhibit recombinant human (h)MAO-A and hMAO-B and to determine the relative selectivity of the top MAO-BI. Methodology Recombinant human isozymes were verified by Western blotting, and the 155 plants were screened. A continuous fluorometric screening assay was performed followed by two separate hMAO-A and hMAO-B microtiter screenings and IC50 determinations for the top extracts. Results In the screened plants, 9% of the extracts showed more than 1.5-fold relative inhibition of hMAO-B (RIB) and another 9% showed more than 1.5-fold relative inhibition of hMAO-A. The top extracts with the most potent RIBs were Psoralea corylifolia seeds, Phellodendron amurense bark, Glycyrrhiza uralensis roots, and Ferula assafoetida roots, with the highest RIB of 5.9-fold. Furthermore, extensive maceration of the promising extracts led to increase inhibitory effects with a preserved RIB as confirmed with luminescence assay. The top four extracts hMAO-BIs were equally potent (IC50= 1.3 to 3.8 μg/mL) with highly significant relative selectivities to inhibit hMAO-B (4.1- to 13.4-fold). Conclusion The obtained results indicate that Psoralea corylifolia seeds, Ferula assafoetida, Glycyrrhiza uralensis roots, and Phellodendron amurense ethanolic extracts have selective inhibitions for human MAO-B. Investigating these plant extracts as natural resources for novel selective MAO-BIs may lead to the development of molecules that can be used in the therapeutic management of neurodegenerative diseases including Parkinson’s disease.
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Affiliation(s)
- Najla O Zarmouh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida 32307, USA
| | - Samia S Messeha
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida 32307, USA
| | - Faisel M Elshami
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida 32307, USA
| | - Karam F A Soliman
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, Florida 32307, USA
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Evaluation of the Isoflavone Genistein as Reversible Human Monoamine Oxidase-A and -B Inhibitor. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:1423052. [PMID: 27118978 PMCID: PMC4826920 DOI: 10.1155/2016/1423052] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 11/29/2022]
Abstract
Monoamine oxidases inhibitors (MAOIs) are effective therapeutic drugs for managing Parkinson's disease (PD) and depression. However, their irreversibility may lead to rare but serious side effects. As finding safer and reversible MAOIs is our target, we characterized the recombinant human (h) MAO-A and MAO-B inhibition potentials of two common natural isoflavones, genistein (GST) and daidzein (DZ) using luminescence assay. The results obtained showed that DZ exhibits partial to no inhibition of the isozymes examined while GST inhibited hMAO-B (IC50 of 6.81 μM), and its hMAO-A inhibition was more potent than the standard deprenyl. Furthermore, the reversibility, mode of inhibition kinetics, and tyramine oxidation of GST were examined. GST was a time-independent reversible and competitive hMAO-A and hMAO-B inhibitor with a lower Ki of hMAO-B (1.45 μM) than hMAO-A (4.31 μM). GST also inhibited hMAO-B tyramine oxidation and hydrogen peroxide production more than hMAO-A. Docking studies conducted indicated that the GST reversibility and hMAO-B selectivity of inhibition may relate to C5-OH effects on its orientation and its interactions with the threonine 201 residue of the active site. It was concluded from this study that the natural product GST has competitive and reversible MAOs inhibitions and may be recommended for further investigations as a useful therapeutic agent for Parkinson's disease.
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Shen W, Yu J, Ge J, Zhang R, Cheng F, Li X, Fan Y, Yu S, Liu B, Zhu Q. Light-Up Probes Based on Fluorogens with Aggregation-Induced Emission Characteristics for Monoamine Oxidase-A Activity Study in Solution and in Living Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:927-935. [PMID: 26666866 DOI: 10.1021/acsami.5b10528] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Fluorogens with aggregation-induced emission (AIEgens) have emerged as a powerful and versatile platform for the development of novel biosensors. In this study, a series of water-soluble fluorescent probes based on tetraphenylethylene (TPE) were designed and synthesized for the detection of monoamine oxidases (MAOs) based on specific interactions between the probes and the proteins. Among the six probes developed, t-TPEM displays a significant fluorescence increase upon introduction of MAOs. Of particular significance is that the fluorescence of t-TPEM in the presence of MAO-A is 21-fold higher than other proteins including MAO-B. Lineweaver-Burk plots reveal that t-TPEM acts as an uncompetitive inhibitor of MAO-A with Ki = 17.1 μM, which confirms its good binding affinity toward MAO-A. Furthermore, a cell imaging experiment reveals that t-TPEM is able to selectively monitor the activity of MAO-A which is localized in mitochondria of MCF-7 cells.
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Affiliation(s)
- Wei Shen
- Department of General Surgery, Jinhua Central Hospital , Jinhua 321000, China
| | - Jiajun Yu
- Institute of Bioengineering, Zhejiang University of Technology , Chaowang Road 18, Hangzhou 310014, China
| | - Jingyan Ge
- Institute of Bioengineering, Zhejiang University of Technology , Chaowang Road 18, Hangzhou 310014, China
| | - Ruoyu Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Science Drive 4 117585, Singapore
| | - Feng Cheng
- Institute of Bioengineering, Zhejiang University of Technology , Chaowang Road 18, Hangzhou 310014, China
- Institute of Biotechnology, RWTH Aachen University , Worringerweg 3, 52074 Aachen, Germany
| | - Xuefeng Li
- Institute of Bioengineering, Zhejiang University of Technology , Chaowang Road 18, Hangzhou 310014, China
| | - Yong Fan
- Department of General Surgery, Jinhua Central Hospital , Jinhua 321000, China
| | - Shian Yu
- Department of General Surgery, Jinhua Central Hospital , Jinhua 321000, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Science Drive 4 117585, Singapore
| | - Qing Zhu
- Institute of Bioengineering, Zhejiang University of Technology , Chaowang Road 18, Hangzhou 310014, China
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Tomić M, Ignjatović Đ, Tovilović-Kovačević G, Krstić-Milošević D, Ranković S, Popović T, Glibetić M. Reduction of anxiety-like and depression-like behaviors in rats after one month of drinking Aronia melanocarpa berry juice. Food Funct 2016; 7:3111-20. [DOI: 10.1039/c6fo00321d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A month-long unlimited drinking of the diluted berry juice ofAronia melanocarpapromoted stimulant, anxiolytic-like and antidepressant-like effects in young male rats, which might ensue from the phenolic-induced central MAO inhibition.
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Affiliation(s)
- Mirko Tomić
- Department of Biochemistry
- Institute for Biological Research “S.Stanković”
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Đurđica Ignjatović
- Department of Biochemistry
- Institute for Biological Research “S.Stanković”
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Gordana Tovilović-Kovačević
- Department of Biochemistry
- Institute for Biological Research “S.Stanković”
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Dijana Krstić-Milošević
- Department of Biochemistry
- Institute for Biological Research “S.Stanković”
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Slavica Ranković
- Centre of Excellence in Nutrition and Metabolism
- Institute for Medical Research
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Tamara Popović
- Centre of Excellence in Nutrition and Metabolism
- Institute for Medical Research
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Marija Glibetić
- Centre of Excellence in Nutrition and Metabolism
- Institute for Medical Research
- University of Belgrade
- 11000 Belgrade
- Serbia
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Evaluation of the Inhibitory Effects of Bavachinin and Bavachin on Human Monoamine Oxidases A and B. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:852194. [PMID: 26557867 PMCID: PMC4629031 DOI: 10.1155/2015/852194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 09/08/2015] [Indexed: 11/17/2022]
Abstract
Monoamine oxidase B inhibitors (MAO-BIs) are used in the early management of Parkinson's disease (PD). Long-term suspected side effects of MAO-B classical inhibitors established the need for safer alternative therapeutic agents. In our study, the flavanone bavachinin (BNN) and its analog bavachin (BVN) found in the seeds of Psoralea corylifolia L. ethanolic extract (PCSEE) were investigated for their human MAO-A and MAO-B (hMAO-A and hMAO-B) inhibition. Both PCSEE and BNN effectively reduced hMAO-B activity more than hMAO-A while BVN had activating effects. BNN showed selective hMAO-B inhibition (IC50 ~ 8.82 μM) more than hMAO-A (IC502009;~ 189.28 μM). BNN in the crude extract was determined by HPLC, also validated by TLC showing a yield of 0.21% PCSEE dry weight. BNN competitively inhibited hMAO-A and hMAO-B, with a lower hMAO-B Ki than hMAO-A Ki by 10.33-fold, and reduced hMAO-B Km/Vmax efficiency ratio to be comparable to the standard selegiline. Molecular docking examination of BNN and BVN predicted an indirect role of BNN C7-methoxy group for its higher affinity, selectivity, and reversibility as an MAO-BI. These findings suggest that BNN, which is known to be a potent PPAR-γ agonist, is a selective and competitive hMAO-B inhibitor and could be used in the management of PD.
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Rojas RJ, Edmondson DE, Almos T, Scott R, Massari ME. Reversible and irreversible small molecule inhibitors of monoamine oxidase B (MAO-B) investigated by biophysical techniques. Bioorg Med Chem 2015; 23:770-8. [DOI: 10.1016/j.bmc.2014.12.063] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/15/2014] [Accepted: 12/24/2014] [Indexed: 11/28/2022]
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Carradori S, Petzer JP. Novel monoamine oxidase inhibitors: a patent review (2012 - 2014). Expert Opin Ther Pat 2014; 25:91-110. [PMID: 25399762 DOI: 10.1517/13543776.2014.982535] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Monoamine oxidase (MAO) inhibitors, despite the initial pharmacological interest, are used in clinic for their antidepressant effect and in the management of Parkinson symptoms, due to the established neuroprotective action. Efficacy and tolerability emerged from large-scale and randomized clinical trials. AREAS COVERED Thirty-six patents range from April 2012 to September 2014. The number of chemotypes with inhibitory effects on MAO is truly high (40 synthetic compounds, 22 natural products and 6 plant extracts reported and licensed), and the present review is comprehensive of all compounds, which have been patented for their relevance to clinical medicine in this period range (27 patents). Moreover, some of the collected patents deal with new formulations of compounds endowed with MAO inhibitory properties (two patents) and new therapeutic options/drug associations for already known MAO inhibitors (seven patents). EXPERT OPINION The patents reported in this review showed that the interest in this field is constant and mainly devoted to the study of selective MAO-B inhibitors, used as drugs for the treatment of neurological disorders. The development of novel human MAO inhibitors took advantage of the discovery of new therapeutic targets (cancer, hair loss, muscle dystrophies, cocaine addiction and inflammation), the recognized role of MAOs as molecular biomarkers and their activity in other tissues.
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Affiliation(s)
- Simone Carradori
- Sapienza University of Rome, Department of Drug Chemistry and Technologies , P.le A. Moro 5, 00185, Rome , Italy +39 06 49913149 ; +39 06 49913923 ;
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Hiasa M, Isoda Y, Kishimoto Y, Saitoh K, Kimura Y, Kanai M, Shibasaki M, Hatakeyama D, Kirino Y, Kuzuhara T. Inhibition of MAO-A and stimulation of behavioural activities in mice by the inactive prodrug form of the anti-influenza agent oseltamivir. Br J Pharmacol 2014; 169:115-29. [PMID: 23320399 PMCID: PMC3632243 DOI: 10.1111/bph.12102] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 12/14/2012] [Accepted: 12/29/2012] [Indexed: 01/10/2023] Open
Abstract
Background and Purpose Oseltamivir is the most widely prescribed anti-influenza medication. However, in rare instances, it has been reported to stimulate behavioural activities in adolescents. The goal of this study was to determine the molecular mechanism responsible for these behavioural activities. Experimental Approach We performed an in vitro assay of MAO-A, the enzyme responsible for neurotransmitter degradation, using either the active form – oseltamivir carboxylate (OC) or the inactive prodrug – oseltamivir ethyl ester (OEE). We also analysed the docking of MAO-A with OEE or OC in silico. Mouse behaviours after OEE or OC administration were monitored using automated video and computer analysis. Key Results OEE, but not OC, competitively and selectively inhibited human MAO-A. The estimated Ki value was comparable with the Km values of native substrates of MAO-A. Docking simulations in silico based on the tertiary structure of MAO-A suggested that OEE could fit into the inner pocket of the enzyme. Behavioural monitoring using automated video analysis further revealed that OEE, not OC, significantly enhanced spontaneous behavioural activities in mice, such as jumping, rearing, sniffing, turning and walking. Conclusions and Implications Our multilevel analyses suggested OEE to be the cause of the side effects associated with oseltamivir and revealed the molecular mechanism underlying the stimulated behaviours induced by oseltamivir in some circumstances.
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Affiliation(s)
- Miki Hiasa
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, Japan
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Vianello P, Botrugno OA, Cappa A, Ciossani G, Dessanti P, Mai A, Mattevi A, Meroni G, Minucci S, Thaler F, Tortorici M, Trifiró P, Valente S, Villa M, Varasi M, Mercurio C. Synthesis, biological activity and mechanistic insights of 1-substituted cyclopropylamine derivatives: a novel class of irreversible inhibitors of histone demethylase KDM1A. Eur J Med Chem 2014; 86:352-63. [PMID: 25173853 DOI: 10.1016/j.ejmech.2014.08.068] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 08/25/2014] [Accepted: 08/26/2014] [Indexed: 11/25/2022]
Abstract
Histone demethylase KDM1A (also known as LSD1) has become an attractive therapeutic target for the treatment of cancer as well as other disorders such as viral infections. We report on the synthesis of compounds derived from the expansion of tranylcypromine as a chemical scaffold for the design of novel demethylase inhibitors. These compounds, which are substituted on the cyclopropyl core moiety, were evaluated for their ability to inhibit KDM1A in vitro as well as to function in cells by modulating the expression of Gfi-1b, a well recognized KDM1A target gene. The molecules were all found to covalently inhibit KDM1A and to become increasingly selective against human monoamine oxidases MAO A and MAO B through the introduction of bulkier substituents on the cyclopropylamine ring. Structural and biochemical analysis of selected trans isomers showed that the two stereoisomers are endowed with similar inhibitory activities against KDM1A, but form different covalent adducts with the FAD co-enzyme.
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Affiliation(s)
- Paola Vianello
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy.
| | - Oronza A Botrugno
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Anna Cappa
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Giuseppe Ciossani
- Department of Biology and Biotechnology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Paola Dessanti
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Antonello Mai
- Pasteur Institute - Cenci Bolognetti Foundation, Department of Drug Chemistry and Technologies, University "La Sapienza", P.le A. Moro 5, 00185 Roma, Italy
| | - Andrea Mattevi
- Department of Biology and Biotechnology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy.
| | - Giuseppe Meroni
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Saverio Minucci
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy; Department of Biosciences, University of Milan, Via Celoria, 26, 20133 Milan, Italy
| | - Florian Thaler
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy.
| | - Marcello Tortorici
- Department of Biology and Biotechnology, University of Pavia, Via Ferrata 1, 27100 Pavia, Italy
| | - Paolo Trifiró
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Sergio Valente
- Pasteur Institute - Cenci Bolognetti Foundation, Department of Drug Chemistry and Technologies, University "La Sapienza", P.le A. Moro 5, 00185 Roma, Italy
| | - Manuela Villa
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Mario Varasi
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
| | - Ciro Mercurio
- Drug Discovery Unit, European Institute of Oncology, Via Adamello 16, 20139 Milan, Italy
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28
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Monoamine oxidase A and B substrates: probing the pathway for drug development. Future Med Chem 2014; 6:697-717. [DOI: 10.4155/fmc.14.23] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Drug-discovery and -development efforts focused on the MAOs have increased at an accelerated rate over the past decade. Since the first crystal structure of human MAO-B was solved in 2002, over 40 additional structures have been reported and have helped define new, or confirm speculative, binding modes of inhibitors. The detailed mechanism of the MAO-catalyzed oxidation of amine substrates has not been fully elucidated, but its significance is central in the development of new mechanism-based inactivators. Novel fungal MAO-N variants derived from directed evolution strategies are enabling the production of new chiral amine products. Robust assays have been established for measuring MAO status in tissue and cells, while improved MAO radioligands are being deployed for PET imaging studies. This review will attempt to highlight the more recent and salient aspects of MAO research in drug discovery and development, with emphasis on substrates 'probing the pathway'.
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29
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Santillo MF, Liu Y, Ferguson M, Vohra SN, Wiesenfeld PL. Inhibition of monoamine oxidase (MAO) by β-carbolines and their interactions in live neuronal (PC12) and liver (HuH-7 and MH1C1) cells. Toxicol In Vitro 2014; 28:403-10. [DOI: 10.1016/j.tiv.2013.12.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 12/06/2013] [Accepted: 12/17/2013] [Indexed: 11/15/2022]
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30
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Li X, Zhang H, Xie Y, Hu Y, Sun H, Zhu Q. Fluorescent probes for detecting monoamine oxidase activity and cell imaging. Org Biomol Chem 2014; 12:2033-6. [DOI: 10.1039/c3ob42326c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Moonrungsee N, Shimamura T, Kashiwagi T, Jakmunee J, Higuchi K, Ukeda H. An automated sequential injection spectrophotometric method for evaluation of tyramine oxidase inhibitory activity of some flavonoids. Talanta 2013; 122:257-63. [PMID: 24720993 DOI: 10.1016/j.talanta.2013.12.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 12/05/2013] [Accepted: 12/10/2013] [Indexed: 11/24/2022]
Abstract
An automated sequential injection (SI) spectrophotometric system has been developed for evaluation of tyramine oxidase (TOD) inhibitory activity. The method is based on the inhibition of TOD that catalyzes the oxidation of tyramine substrate to produce aldehyde and hydrogen peroxide (H₂O₂). The produced H₂O₂ reacts with vanillic acid and 4-aminoantipyrine (4-AA) in the presence of peroxidase (POD) to form a quinoneimine dye, the absorbance of which is measured of absorbance at wavelength of 490 nm. The decrease of the quinoneimine dye is related to an increase of TOD inhibitory activity. Under the optimum conditions: 1.0 mM tyramine, 8 U mL(-1) TOD, 1.0 mM vanillic acid, 1.0 mM 4-AA and delay time of 10 s, some flavonoid compounds were examined for the TOD inhibitory activity expressed as IC₅₀ value. It was found that flavonols (quercetin and myricetin) and flavans (epicatechin gallate (ECG) and epigallocatechin (EGC)) showed higher TOD inhibitory activity than flavones and flavanones. The results of IC₅₀ values obtained from the proposed method and a batch-wise method were not significantly different from each other. Moreover, the SI system enabled automation of the analysis, leading to more convenient, more sensitive and faster analysis than the batch-wise method. A precise timing of the system also improves precision and accuracy of the assay, especially when the measurement of absorbance at non-steady state condition is involved.
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Affiliation(s)
- Nuntaporn Moonrungsee
- Department of Chemistry and Center of Excellence for Innovation in Chemisry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Tomoko Shimamura
- Faculty of Agriculture, Kochi University, Monobe B-200, Nankoku 783-8502, Japan
| | - Takehiro Kashiwagi
- Faculty of Agriculture, Kochi University, Monobe B-200, Nankoku 783-8502, Japan
| | - Jaroon Jakmunee
- Department of Chemistry and Center of Excellence for Innovation in Chemisry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Keiro Higuchi
- FIA Instruments Division, Ogawa and Co., Ltd., 3-1-25-501, Hio-cho, Nada-ku, Kobe-shi, Hyogo 657-0029, Japan
| | - Hiroyuki Ukeda
- Faculty of Agriculture, Kochi University, Monobe B-200, Nankoku 783-8502, Japan
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32
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A bioluminescence assay for aldehyde dehydrogenase activity. Anal Biochem 2013; 434:226-32. [DOI: 10.1016/j.ab.2012.11.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 11/12/2012] [Accepted: 11/22/2012] [Indexed: 01/16/2023]
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33
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Van de Bittner GC, Bertozzi CR, Chang CJ. Strategy for dual-analyte luciferin imaging: in vivo bioluminescence detection of hydrogen peroxide and caspase activity in a murine model of acute inflammation. J Am Chem Soc 2013; 135:1783-95. [PMID: 23347279 PMCID: PMC3583381 DOI: 10.1021/ja309078t] [Citation(s) in RCA: 221] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In vivo molecular imaging holds promise for understanding the underlying mechanisms of health, injury, aging, and disease, as it can detect distinct biochemical processes such as enzymatic activity, reactive small-molecule fluxes, or post-translational modifications. Current imaging techniques often detect only a single biochemical process, but, within whole organisms, multiple types of biochemical events contribute to physiological and pathological phenotypes. In this report, we present a general strategy for dual-analyte detection in living animals that employs in situ formation of firefly luciferin from two complementary caged precursors that can be unmasked by different biochemical processes. To establish this approach, we have developed Peroxy Caged Luciferin-2 (PCL-2), a H(2)O(2)-responsive boronic acid probe that releases 6-hydroxy-2-cyanobenzothiazole (HCBT) upon reacting with this reactive oxygen species, as well as a peptide-based probe, z-Ile-Glu-ThrAsp-D-Cys (IETDC), which releases D-cysteine in the presence of active caspase 8. Once released, HCBT and D-cysteine form firefly luciferin in situ, giving rise to a bioluminescent signal if and only if both chemical triggers proceed. This system thus constitutes an AND-type molecular logic gate that reports on the simultaneous presence of H(2)O(2) and caspase 8 activity. Using these probes, chemoselective imaging of either H(2)O(2) or caspase 8 activity was performed in vitro and in vivo. Moreover, concomitant use of PCL-2 and IETDC in vivo establishes a concurrent increase in both H(2)O(2) and caspase 8 activity during acute inflammation in living mice. Taken together, this method offers a potentially powerful new chemical tool for studying simultaneous oxidative stress and inflammation processes in living animals during injury, aging, and disease, as well as a versatile approach for concurrent monitoring of multiple analytes using luciferin-based bioluminescence imaging technologies.
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Affiliation(s)
| | - Carolyn R. Bertozzi
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, United States
| | - Christopher J. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, United States
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34
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Xiang Y, He B, Li X, Zhu Q. The design and synthesis of novel “turn-on” fluorescent probes to visualize monoamine oxidase-B in living cells. RSC Adv 2013. [DOI: 10.1039/c3ra22789h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Li J, Chen L, Du L, Li M. Cage the firefly luciferin! – a strategy for developing bioluminescent probes. Chem Soc Rev 2013; 42:662-76. [DOI: 10.1039/c2cs35249d] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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36
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Bhattacharjee A, Shukla M, Yakubenko VP, Mulya A, Kundu S, Cathcart MK. IL-4 and IL-13 employ discrete signaling pathways for target gene expression in alternatively activated monocytes/macrophages. Free Radic Biol Med 2013; 54:1-16. [PMID: 23124025 PMCID: PMC3534796 DOI: 10.1016/j.freeradbiomed.2012.10.553] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 10/06/2012] [Accepted: 10/24/2012] [Indexed: 12/12/2022]
Abstract
Monocytes/macrophages are innate immune cells that play a crucial role in the resolution of inflammation. In the presence of the Th2 cytokines interleukin-4 (IL-4) and interleukin-13 (IL-13), they display an anti-inflammatory profile and this activation pathway is known as alternative activation. In this study we compare and differentiate pathways mediated by IL-4 and IL-13 activation of human monocytes/macrophages. Here we report differential regulation of IL-4 and IL-13 signaling in monocytes/macrophages starting from IL-4/IL-13 cytokine receptors to Jak/Stat-mediated signaling pathways that ultimately control expression of several inflammatory genes. Our data demonstrate that although the receptor-associated tyrosine kinases Jak2 and Tyk2 are activated after the recruitment of IL-13 to its receptor (containing IL-4Rα and IL-13Rα1), IL-4 stimulates Jak1 activation. We further show that Jak2 is upstream of Stat3 activation and Tyk2 controls Stat1 and Stat6 activation in response to IL-13 stimulation. In contrast, Jak1 regulates Stat3 and Stat6 activation in IL-4-induced monocytes. Our results further reveal that although IL-13 utilizes both IL-4Rα/Jak2/Stat3 and IL-13Rα1/Tyk2/Stat1/Stat6 signaling pathways, IL-4 can use only the IL-4Rα/Jak1/Stat3/Stat6 cascade to regulate the expression of some critical inflammatory genes, including 15-lipoxygenase, monoamine oxidase A (MAO-A), and the scavenger receptor CD36. Moreover, we demonstrate here that IL-13 and IL-4 can uniquely affect the expression of particular genes such as dual-specificity phosphatase 1 and tissue inhibitor of metalloprotease-3 and do so through different Jaks. As evidence of differential regulation of gene function by IL-4 and IL-13, we further report that MAO-A-mediated reactive oxygen species generation is influenced by different Jaks. Collectively, these results have major implications for understanding the mechanism and function of alternatively activated monocytes/macrophages by IL-4 and IL-13 and add novel insights into the pathogenesis and potential treatment of various inflammatory diseases.
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Affiliation(s)
- Ashish Bhattacharjee
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio 44195
| | - Meenakshi Shukla
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio 44195
| | - Valentin P. Yakubenko
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio 44195
| | - Anny Mulya
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio 44195
| | - Suman Kundu
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio 44195
| | - Martha K. Cathcart
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic and Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio 44195
- Corresponding author. Mailing address: Department of Cell Biology, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195. Phone: (216) 444-5222. Fax: (216) 444-9404.
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37
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Ueki R, Yamaguchi K, Nonaka H, Sando S. 1H NMR Probe for in Situ Monitoring of Dopamine Metabolism and Its Application to Inhibitor Screening. J Am Chem Soc 2012; 134:12398-401. [DOI: 10.1021/ja305051u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryosuke Ueki
- INAMORI Frontier
Research Center, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka,
819-0395, Japan
| | - Koya Yamaguchi
- INAMORI Frontier
Research Center, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka,
819-0395, Japan
| | - Hiroshi Nonaka
- INAMORI Frontier
Research Center, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka,
819-0395, Japan
| | - Shinsuke Sando
- INAMORI Frontier
Research Center, Kyushu University, 744
Motooka, Nishi-ku, Fukuoka,
819-0395, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama,
332-0012, Japan
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38
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Long S, Chen L, Xiang Y, Song M, Zheng Y, Zhu Q. An activity-based fluorogenic probe for sensitive and selective monoamine oxidase-B detection. Chem Commun (Camb) 2012; 48:7164-6. [DOI: 10.1039/c2cc33089j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Reniers J, Meinguet C, Moineaux L, Masereel B, Vincent S, Frederick R, Wouters J. Synthesis and inhibition study of monoamine oxidase, indoleamine 2,3-dioxygenase and tryptophan 2,3-dioxygenase by 3,8-substituted 5H-indeno[1,2-c]pyridazin-5-one derivatives. Eur J Med Chem 2011; 46:6104-11. [DOI: 10.1016/j.ejmech.2011.09.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 09/16/2011] [Accepted: 09/22/2011] [Indexed: 10/16/2022]
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40
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Peet GW, Lukas S, Hill-Drzewi M, Martin L, Rybina IV, Roma T, Shoultz A, Zhu X, Cazacu D, Kronkaitis A, Baptiste A, Raudenbush BC, August EM, Modis LK. Bioluminescent Method for Assaying Multiple Semicarbazide-Sensitive Amine Oxidase (SSAO) Family Members in Both 96- and 384-Well Formats. ACTA ACUST UNITED AC 2011; 16:1106-11. [DOI: 10.1177/1087057111414897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Vascular adhesion protein–1 (VAP-1), also known as semicarbazide-sensitive amine oxidase (SSAO) or copper-containing amine oxidase (AOC3, EC 1.4.3.6), catalyzes oxidative deamination of primary amines. One endogenous substrate has recently been described (Siglec 10), and although its mechanism of action in vivo is not completely understood, it is suggested to play a role in immune cell trafficking, making it a target of interest for autoimmune and inflammatory diseases. Much of the enzymology performed around this target has been conducted with absorbance, fluorescent, or radiometric formats that can have some limitations for high-throughput screening and subsequent compound profiling. The authors present the use of a bioluminescent assay, originally developed for monoamine oxidase enzymes, in a high-throughput format. It can be used for related SSAOs such as AOC1 given their substrate similarity with VAP-1. The authors also demonstrate that it is compatible with different sources of VAP-1, both purified recombinant and VAP-1 overexpressed on live cells.
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Affiliation(s)
| | - Susan Lukas
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
| | | | - Leslie Martin
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
| | | | - Teresa Roma
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
| | - Alycia Shoultz
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
| | - Xiang Zhu
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
| | - Daniela Cazacu
- Boehringer Ingelheim Pharmaceuticals, Ridgefield, CT, USA
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41
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Abstract
One of the main reasons for drug failures in clinical development, or postmarket launch, is lacking or compromised safety margins at therapeutic doses. Organ toxicity with poorly defined mechanisms and adverse drug reactions associated with on- and off-target effects are the major contributors to safety-related shortfalls of many clinical drug candidates. Therefore, to avoid high attrition rates in clinical trials, it is imperative to test compounds for potential adverse reactions during early drug discovery. Beyond a small number of targets associated with clinically acknowledged adverse drug reactions, there is little consensus on other targets that are important to consider at an early stage for in vitro safety pharmacology assessment. We consider here a limited number of safety-related targets, from different target families, which were selected as part of in vitro safety pharmacology profiling panels integrated in the drug-development process at Novartis. The best way to assess these targets, using a biochemical or a functional readout, is discussed. In particular, the importance of using cell-based profiling assays for the characterization of an agonist action at some GPCRs is highlighted. A careful design of in vitro safety pharmacology profiling panels allows better prediction of potential adverse effects of new chemical entities early in the drug-discovery process. This contributes to the selection of the best candidate for clinical development and, ultimately, should contribute to a decreased attrition rate.
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42
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Reniers J, Robert S, Frederick R, Masereel B, Vincent S, Wouters J. Synthesis and evaluation of β-carboline derivatives as potential monoamine oxidase inhibitors. Bioorg Med Chem 2011; 19:134-44. [DOI: 10.1016/j.bmc.2010.11.041] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 11/17/2010] [Accepted: 11/18/2010] [Indexed: 10/18/2022]
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43
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Razgulin A, Ma N, Rao J. Strategies for in vivo imaging of enzyme activity: an overview and recent advances. Chem Soc Rev 2011; 40:4186-216. [DOI: 10.1039/c1cs15035a] [Citation(s) in RCA: 226] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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44
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Inouye S. Firefly luciferase: an adenylate-forming enzyme for multicatalytic functions. Cell Mol Life Sci 2010; 67:387-404. [PMID: 19859663 PMCID: PMC11115821 DOI: 10.1007/s00018-009-0170-8] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Revised: 09/24/2009] [Accepted: 10/02/2009] [Indexed: 01/28/2023]
Abstract
Firefly luciferase is a member of the acyl-adenylate/thioester-forming superfamily of enzymes and catalyzes the oxidation of firefly luciferin with molecular oxygen to emit light. Knowledge of the luminescence mechanism catalyzed by firefly luciferase has been gathered, leading to the discovery of a novel catalytic function of luciferase. Recently, we demonstrated that firefly luciferase has a catalytic function of fatty acyl-CoA synthesis from fatty acids in the presence of ATP, Mg(2+) and coenzyme A. Based on identification of fatty acyl-CoA genes in firefly, Drosophila, and non-luminous click beetles, we then proposed that the evolutionary origin of firefly luciferase is a fatty acyl-CoA synthetase in insects. Further, we succeeded in converting the fatty acyl-CoA synthetase of non-luminous insects into functional luciferase showing luminescence activity by site-directed mutagenesis.
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Affiliation(s)
- Satoshi Inouye
- Yokohama Research Center, Chisso Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama 236-8605, Japan.
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45
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Rowe L, Dikici E, Daunert S. Engineering bioluminescent proteins: expanding their analytical potential. Anal Chem 2010; 81:8662-8. [PMID: 19725502 DOI: 10.1021/ac9007286] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bioluminescent proteins are used in a plethora of analytical methods, from ultrasensitive assay development to the in vivo imaging of cellular processes. This article reviews the most pertinent current bioluminescent-protein-based technologies and suggests the future direction of this vein of research. (To listen to a podcast about this feature, please go to the Analytical Chemistry multimedia page at pubs.acs.org/page/ancham/audio/index.html .).
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46
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Gregory KJ, Sun Y. Reduction of sample evaporation in small volume microplate luminescence assays. Anal Biochem 2009; 387:321-3. [DOI: 10.1016/j.ab.2009.01.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Revised: 01/19/2009] [Accepted: 01/22/2009] [Indexed: 11/17/2022]
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47
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Wigdal SS, Anderson JL, Vidugiris GJ, Shultz J, Wood KV, Fan F. A novel bioluminescent protease assay using engineered firefly luciferase. CURRENT CHEMICAL GENOMICS 2008; 2:16-28. [PMID: 20161840 PMCID: PMC2803436 DOI: 10.2174/1875397300802010016] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 08/20/2008] [Accepted: 08/23/2008] [Indexed: 11/22/2022]
Abstract
Proteases play important roles in a variety of disease processes. Understanding their biological functions underpins the efforts of drug discovery. We have developed a bioluminescent protease assay using a circularly permuted form of firefly luciferase, wherein the native enzyme termini were joined by a peptide containing a protease site of interest. Protease cleavage of these mutant luciferases greatly activates the enzyme, typically over 100 fold. The mutant luciferase substrates are easily generated by molecular cloning and cell-free translation reactions and thus the protease substrates do not need to be chemically synthesized or purchased. The assay has broad applicability using a variety of proteases and their cognate sites and can sensitively detect protease activity. In this report we further demonstrate its utility for the evaluation of protease recognition sequence specificity and subsequent establishment of an optimized assay for the identification and characterization of protease inhibitors using high throughput screening.
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Affiliation(s)
- Susan S Wigdal
- Promega Corporation, 2800 Woods Hollow Road, Madison, WI 53711, USA
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48
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Shan L, Zhang R, Zhang W, Lee E, Sridhar R, Snyderwine EG, Wang PC. Image-based evaluation of the molecular events underlying HC11 mammary epithelial cell differentiation. Anal Biochem 2008; 382:122-8. [PMID: 18722992 DOI: 10.1016/j.ab.2008.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2008] [Accepted: 08/01/2008] [Indexed: 01/27/2023]
Abstract
We have developed an image-based technique for signal pathway analysis, target validation, and compound screening related to mammary epithelial cell differentiation. This technique used the advantages of optical imaging and the HC11-Lux model system. The HC11-Lux cell line is a subclone of HC11 mammary epithelial cells transfected stably with a luciferase construct of the beta-casein gene promoter (p-344/-1betac-Lux). The promoter activity was imaged optically in real time following lactogenic induction. The imaging signal intensity was closely correlated with that measured using a luminometer following protein extraction (R=0.99, P<0.0001) and consistent with the messenger RNA (mRNA) level of the endogenous beta -casein gene. Using this technique, we examined the roles of JAK2/Stat5A, Raf-1/MEK/MAKP, and PI3K/Akt signal pathways with respect to differentiation. The imaging studies showed that treatment of the cells with epidermal growth factor (EGF), AG490 (JAK2-specific inhibitor), and LY294002 (PI3K-specific inhibitor) blocked lactogenic differentiation in a dose-dependent manner. PD98059 (MEK-specific inhibitor) could reverse EGF-mediated differentiation arrest. These results indicate that these pathways are essential in cell differentiation. This simple, sensitive, and reproducible technique permits visualization and real-time evaluation of the molecular events related to milk protein production. It can be adopted for high-throughput screening of small molecules for their effects on mammary epithelial cell growth, differentiation, and carcinogenesis.
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Affiliation(s)
- Liang Shan
- Department of Radiology, Howard University, Washington, DC 20060, USA
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Ke S, Li Z, Qian X. 1,3,4-Oxadiazole-3(2H)-carboxamide derivatives as potential novel class of monoamine oxidase (MAO) inhibitors: Synthesis, evaluation, and role of urea moiety. Bioorg Med Chem 2008; 16:7565-72. [DOI: 10.1016/j.bmc.2008.07.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 07/13/2008] [Accepted: 07/15/2008] [Indexed: 10/21/2022]
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Lu YY, Wang YG, Dai B, Dai YQ, Wang Z, Fu ZW, Zhu Q. A novel fluorogenic probe for monoamine oxidase assays. CHINESE CHEM LETT 2008. [DOI: 10.1016/j.cclet.2008.05.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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