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Park SJ, Kwak MK, Kang SO. Schiff bases of putrescine with methylglyoxal protect from cellular damage caused by accumulation of methylglyoxal and reactive oxygen species in Dictyostelium discoideum. Int J Biochem Cell Biol 2017; 86:54-66. [PMID: 28330789 DOI: 10.1016/j.biocel.2017.03.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/14/2017] [Accepted: 03/15/2017] [Indexed: 02/08/2023]
Abstract
Polyamines protect protein glycation in cells against the advanced glycation end product precursor methylglyoxal, which is inevitably produced during glycolysis, and the enzymes that detoxify this α-ketoaldehyde have been widely studied. Nonetheless, nonenzymatic methylglyoxal-scavenging molecules have not been sufficiently studied either in vitro or in vivo. Here, we hypothesized reciprocal regulation between polyamines and methylglyoxal modeled in Dictyostelium grown in a high-glucose medium. We based our hypothesis on the reaction between putrescine and methylglyoxal in putrescine-deficient (odc-) or putrescine-overexpressing (odcoe) cells. In these strains, growth and cell cycle were found to be dependent on cellular methylglyoxal and putrescine contents. The odc- cells showed growth defects and underwent G1 phase cell cycle arrest, which was efficiently reversed by exogenous putrescine. Cellular methylglyoxal, reactive oxygen species (ROS), and glutathione levels were remarkably changed in odcoe cells and odc̄ cells. These results revealed that putrescine may act as an intracellular scavenger of methylglyoxal and ROS. Herein, we observed interactions of putrescine and methylglyoxal via formation of a Schiff base complex, by UV-vis spectroscopy, and confirmed this adduct by liquid chromatography with mass spectrometry via electrospray ionization. Schiff bases were isolated, analyzed, and predicted to have molecular masses ranging from 124 to 130. We showed that cellular putrescine-methylglyoxal Schiff bases were downregulated in proportion to the levels of endogenous or exogenous putrescine and glutathione in the odc mutants. The putrescine-methylglyoxal Schiff base affected endogenous metabolite levels. This is the first report showing that cellular methylglyoxal functions as a signaling molecule through reciprocal interactions with polyamines by forming Schiff bases.
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Affiliation(s)
- Seong-Jun Park
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea
| | - Min-Kyu Kwak
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea.
| | - Sa-Ouk Kang
- Laboratory of Biophysics, School of Biological Sciences, and Institute of Microbiology, Seoul National University, Seoul 151-742, Republic of Korea.
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Tang B, Zhang JH, Zi M, Chen XX, Yuan LM. Solid-phase extraction with metal-organic frameworks for the analysis of chiral compounds. Chirality 2016; 28:778-783. [DOI: 10.1002/chir.22657] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bo Tang
- Department of Chemistry; Yunnan Normal University; Kunming People's Republic of China
| | - Jun-Hui Zhang
- Department of Chemistry; Yunnan Normal University; Kunming People's Republic of China
| | - Min Zi
- Department of Chemistry; Yunnan Normal University; Kunming People's Republic of China
| | - Xue-Xian Chen
- Department of Chemistry; Yunnan Normal University; Kunming People's Republic of China
| | - Li-Ming Yuan
- Department of Chemistry; Yunnan Normal University; Kunming People's Republic of China
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Yajima T, Tonoi T, Nagano H, Tomita Y, Mikami K. Direct Racemic Mixture Synthesis of Fluorinated Amino Acids by Perfluoroalkyl Radical Addition to Dehydroamino Acids Terminated by Asymmetric Protonation. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Tonoi T, Zhang W, Curran DP, Mikami K. Fluorous "racemic" mixture synthesis: polysaccharide-based chiral columns for simultaneous demix and enantioseparation of racemic fluorous tagged compounds. Chirality 2008; 20:597-603. [PMID: 18205199 DOI: 10.1002/chir.20487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The proof of concept experiments of fluorous "racemic" mixture synthesis (FRMS) is shown using polysaccharide-based chiral stationary phases. The mixture of racemic O-benzoylmandelate derivatives bearing different lengths of fluorous cleavable tags undergoes sequential reactions to provide individual derivatives as well as their enantiomers resolved on polysaccharide-based chiral HPLC columns (DAICEL CHIRALCEL and CHIRALPAK series).
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Affiliation(s)
- Takayuki Tonoi
- Department of Applied Chemistry, Tokyo Institute of Technology, Tokyo, Japan
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Tonoi T, Mikami K. Fluorous “Racemic” Mixture Synthesis: Simultaneous Strategy for Demixing and Enantioseparation of Racemic Fluorous-Tagged Products. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Caputo CA, Jones ND. Developments in asymmetric catalysis by metal complexes of chiral chelating nitrogen-donor ligands. Dalton Trans 2007:4627-40. [DOI: 10.1039/b709283k] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Directed Evolution of Enantioselective Enzymes as Catalysts for Organic Synthesis. ADVANCES IN CATALYSIS 2006. [DOI: 10.1016/s0360-0564(05)49001-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Xu L, Mikami K. Diastereo- and enantioselective syntheses of ansa-metallocenes from metal halide complexes with tropos biphenol and atropos binaphthol ethers. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.10.094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Affiliation(s)
- Manfred T Reetz
- Max-Planck-Institut für Kohlenforschung, Mülheim An Der Ruhr, Germany
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Mikami K, Yamanaka M. Symmetry breaking in asymmetric catalysis: racemic catalysis to autocatalysis. Chem Rev 2003; 103:3369-400. [PMID: 12914501 DOI: 10.1021/cr000260z] [Citation(s) in RCA: 189] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koichi Mikami
- Department of Applied Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552, Japan.
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11
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Gennari C, Piarulli U. Combinatorial libraries of chiral ligands for enantioselective catalysis. Chem Rev 2003; 103:3071-100. [PMID: 12914492 DOI: 10.1021/cr020058r] [Citation(s) in RCA: 237] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cesare Gennari
- Dipartimento di Chimica Organica e Industriale, Centro di Eccellenza C.I.S.I., Università di Milano, 20133 Milan, Italy.
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Walsh PJ, Lurain AE, Balsells J. Use of achiral and meso ligands to convey asymmetry in enantioselective catalysis. Chem Rev 2003; 103:3297-344. [PMID: 12914499 DOI: 10.1021/cr0000630] [Citation(s) in RCA: 173] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Patrick J Walsh
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104-6323, USA
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Nakamura Y, Takeuchi S, Okumura K, Ohgo Y, Matsuzawa H, Mikami K. Enantiomeric resolution of fluorous mixture by chiral CD columns: asymmetric reduction of a mixture of fluorous ketones. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01539-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Traverse JF, Snapper ML. High-throughput methods for the development of new catalytic asymmetric reactions. Drug Discov Today 2002; 7:1002-12. [PMID: 12546918 DOI: 10.1016/s1359-6446(02)02436-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chiral, single enantiomer pharmaceuticals have become increasingly more important. Therefore, research aimed at providing new methods for their selective preparation has taken on an even greater importance. One of the most efficient strategies for the synthesis of non-racemic, chiral molecules is asymmetric catalysis. There are many variables involved in the discovery of a new catalytic asymmetric transformation; hence, methods for the rapid screening of large numbers of catalysts have been developed. Herein, these techniques and strategies for the rapid discovery of novel asymmetric catalysts are reviewed.
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Affiliation(s)
- John F Traverse
- Department of Chemistry, Boston College, Eugene F. Merkert Chemistry Center, Room 125, 2609 Beacon Street, Chesnut Hill, MA 02467, USA
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Abstract
[reaction: see text] A new method is presented for the measurement of enantiomeric excess (ee) utilizing molecularly imprinted polymers (MIPs). The method is demonstrated to be accurate and rapid, as the ee values can be calculated from straightforward concentration measurements. The MIP-based assay can also be adapted to measure the ee of samples of differing initial concentrations.
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Affiliation(s)
- Yizhao Chen
- University of South Carolina, Department of Chemistry and Biochemistry, Columbia, South Carolina 29208, USA
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Driffield M, Bergström ET, Goodall DM, Klute AS, Smith DK. High-performance liquid chromatography applications of optical rotation detection with compensation for scattering and absorbance at the laser wavelength. J Chromatogr A 2001; 939:41-8. [PMID: 11806544 DOI: 10.1016/s0021-9673(01)01336-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Use of instrumentation developed to enable simultaneous monitoring of optical rotation (OR) and transmittance allows OR measurements to be made in the presence of high levels of absorbance, scattering or other effects that change the intensity of the plane-polarised light at the photodiode detector. This extends the application of OR detection to areas where it was previously difficult. Examples of the application of high-performance liquid chromatography (HPLC) with the improved OR detector include (i) the analytical scale separation of fructose and sucrose and (ii) the semi-preparative separation of enantiomers of warfarin and Trögers base. A signal-to-noise improvement of up to 150% is found when comparing signals with and without correction for transmittance changes. The improved OR detector has been used in series with a UV detector and the system shown to be suitable for on-line measurement of peak purity in separations using a chiral column under overload conditions.
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Affiliation(s)
- M Driffield
- Department of Chemistry, University of York, Heslington, UK
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Mikami K, Angelaud R, Ding K, Ishii A, Tanaka A, Sawada N, Kudo K, Senda M. Asymmetric activation of chiral alkoxyzinc catalysts by chiral nitrogen activators for dialkylzinc addition to aldehydes: super high-throughput screening of combinatorial libraries of chiral ligands and activators by HPLC-CD/UV and HPLC-OR/RIU systems. Chemistry 2001; 7:730-7. [PMID: 11261671 DOI: 10.1002/1521-3765(20010202)7:3<730::aid-chem730>3.0.co;2-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Asymmetric catalysts, prepared by chiral ligand exchange or chiral modification, can evolve further into highly activated catalysts through engineering with chiral activators. Two new methodologies for "super high-throughput screening" (SHTS) of chiral ligands and activators have been developed as a combination of HPLC-CD/UV (CD/ UV = circular dichroism/ultraviolet spectroscopy) or -OR/RIU (OR/RIU = optical rotation/refractive index unit) with a combinatorial chemistry (CC) factory. With these techniques, the % ee of the product is determined within minutes without separation of the enantiomeric products by using a nonchiral stationary phase. Therefore, those SHTS techniques combined with our 'asymmetric activation' concept can provide a powerful strategy for finding the best activated chiral catalyst.
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Affiliation(s)
- K Mikami
- Department of Chemical Technology, Faculty of Engineering, Tokyo Institute of Technology, Japan.
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