101
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Lin PC, Chen SH, Wang KY, Chen ML, Adak AK, Hwu JRR, Chen YJ, Lin CC. Fabrication of oriented antibody-conjugated magnetic nanoprobes and their immunoaffinity application. Anal Chem 2010; 81:8774-82. [PMID: 19874051 DOI: 10.1021/ac9012122] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In an attempt to fabricate highly active immunoprobes for serum biomarker detection, we report a simple and effective method for site-specific and self-oriented immobilization of antibodies on magnetic nanoparticles (MNPs). Through boronate formation, the carbohydrate moiety within the constant domain, Fc, of the antibody can be specifically and covalently linked to a boronic acid-functionalized MNP (BA@MNP) without hindering the antigen binding domain, Fab. The performance was evaluated by immunoaffinity extraction of multiple serum antigens. Compared with the random immobilization of antibody on a MNP, the antibody self-oriented immunoprobe provides long-term stability (>2 months) and 5-fold extraction efficiency. It also provides 5-fold improved sensitivity at a low nM range (0.4 nM), presumably through enhanced antibody@MNP activity. In addition, false-positive detections arising from nonspecific binding can be completely minimized by effective surface protection using concentration-dependent dextran blocking. Compared with conventional antibody site-specific immobilization through protein G, this new BA-mediated covalent antibody immobilization provides interference-free extraction resulting from noncovalent immobilization of antibody by protein G. The new immunoassay was applied in comparative profiling of serum amyloid P (SAP), serum amyloid A (SAA), and C-reactive protein (CRP) in human serum. Our triple immunoassay revealed a distinct pattern among normal patients, patients with cancer, and patients with cardiovascular disease. Using the previously reported quantization capability of the MALDI MS readout, we expect that this site-specific immunonanoprobe-based immunoassay can be highly active, rapid, and accurate in nanodiagnosis.
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Affiliation(s)
- Po-Chiao Lin
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan
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102
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Jin S, Zhu C, Cheng Y, Li M, Wang B. Synthesis and carbohydrate binding studies of fluorescent alpha-amidoboronic acids and the corresponding bisboronic acids. Bioorg Med Chem 2010; 18:1449-55. [PMID: 20129789 DOI: 10.1016/j.bmc.2010.01.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Revised: 01/06/2010] [Accepted: 01/07/2010] [Indexed: 01/19/2023]
Abstract
Fluorescent boronic acids are very useful for the design and synthesis of carbohydrate sensors. In an earlier communication, we first described the effort of developing water soluble fluorescent alpha-amidoboronic acids, which change fluorescence upon sugar binding. In this report, we describe a general method of functionalizing such boronic acids and their applications in the preparation of bis-alpha-amidoboronic acids with significantly enhanced binding for oligosaccharides as compared to their monoboronic acid counterparts. The advantages of good water solubility, easy modification to generate diversity, and modularity in synthesis will make alpha-amidoboronic acids very useful building blocks for future synthesis of boronic acid-based fluorescent sensors.
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Affiliation(s)
- Shan Jin
- Department of Chemistry, Georgia State University, Atlanta, GA 30302-4098, USA
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103
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Trippier PC, McGuigan C. Boronic acids in medicinal chemistry: anticancer, antibacterial and antiviral applications. MEDCHEMCOMM 2010. [DOI: 10.1039/c0md00119h] [Citation(s) in RCA: 218] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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104
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Trippier PC, McGuigan C, Balzarini J. Phenylboronic-Acid-Based Carbohydrate Binders as Antiviral Therapeutics: Monophenylboronic Acids. ACTA ACUST UNITED AC 2010; 20:249-57. [DOI: 10.3851/imp1632] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Background: The development of carbohydrate-binding agents as novel therapeutics for the inhibition of highly glycosylated enveloped viruses has generated much attention in recent literature. Possessing a potential dual mode of action by inhibiting virus entry and exposing the virion to neutralization by the host immune system upon the deletion of envelope glycans under drug pressure, these substances might provide a new direction in antiviral treatment. Phenylboronic acids are widely known to bind the cis-diol functionality of carbohydrate structures, thereby identifying themselves as potential lead structures. To date, few details have been disclosed of the structure–activity relationship of these substances in correlation to their antiviral activity. Methods: In this study, a compound library of a diverse range of ortho-, meta- and para- ring-substituted monophenylboronic acids and glutamine phenylboronic acid analogues was prepared, characterized and evaluated to probe antiviral activity versus a broad range of (enveloped) viruses. Results: The compounds described herein lack antiviral activity. They also did not show measurable binding to HIV type-1 (HIV-1) gp120, using surface plasmon resonance technology. However, of note is the general lack of toxicity, which suggests that further investigation of the compounds as potential therapeutics is needed. Conclusions: The monophenylboronic acids tested exhibited no antiviral activity as potential carbohydrate binders versus a broad range of enveloped and non-enveloped viruses. The compounds tested did not bind HIV-1 gp120, possibly because of their small size and lack of multivalency.
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Affiliation(s)
| | | | - Jan Balzarini
- Rega Institute for Medical Research, Leuven, Belgium
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105
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Peng Q, Chen F, Zhong Z, Zhuo R. Enhanced gene transfection capability of polyethylenimine by incorporating boronic acid groups. Chem Commun (Camb) 2010; 46:5888-90. [DOI: 10.1039/c0cc00877j] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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106
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Abstract
AbstractSilica surface was modified with phenylboronic acid derivatives. The structures of the functionalized supports were characterized by FT-IR spectroscopy, 13C CP/MAS NMR spectrometry, elemental and thermogravimetric analysis. The solid supports were effectively applied as artificial receptors for sugars in aqueous solutions. Alizarin Red S. (ARS) was used to detect colour change upon carbohydrate (sugar) binding. The association constants of the supports studied-ARS complex and the functionalized silica-sugar (glucose) complex were calculated. The parameters obtained were comparable with those for the phenylboronic acids used for the silica gel modification. The competitive binding of the functionalized silica surface with ARS and sugar were studied by UV/VIS measurements.
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107
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Huang X, Li S, Schultz J, Wang Q, Lin Q. A Capacitive MEMS Viscometric Sensor for Affinity Detection of Glucose. JOURNAL OF MICROELECTROMECHANICAL SYSTEMS : A JOINT IEEE AND ASME PUBLICATION ON MICROSTRUCTURES, MICROACTUATORS, MICROSENSORS, AND MICROSYSTEMS 2009; 18:1246-1254. [PMID: 24511213 PMCID: PMC3915933 DOI: 10.1109/jmems.2009.2034869] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This paper presents a capacitively based microelectromechanical systems affinity sensor for continuous glucose monitoring (CGM) applications. This sensor consists of a vibrating Parylene diaphragm, which is remotely driven by a magnetic field and situated inside a microchamber. A solution of poly(acrylamide-ran-3-acrylamidophenylboronic acid) (PAA-ran-PAAPBA), a biocompatible glucose-sensitive polymer, fills the microchamber, which is separated from its surroundings by a semipermeable membrane. Glucose permeates through the membrane and binds reversibly to the phenylboronic acid moiety of the polymer. This results in a viscosity change of the sensing solution, causing a detectable change in the Parylene diaphragm vibration which can be measured capacitively. Experimental results demonstrate that the device is capable of detecting glucose at physiologically relevant concentrations ranging from 30 to 360 mg/dL. The response time of the sensor to glucose concentration changes is approximately 1.5 min, which can be further improved with optimized device designs. Excellent reversibility and stability are observed in sensor responses, as highly desired for long-term CGM.
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Affiliation(s)
- Xian Huang
- Department of Mechanical Engineering, Columbia University, New York, NY 10027 USA
| | - Siqi Li
- Department of Chemistry and Biochemistry and Nanocenter, University of South Carolina, Columbia, SC 29208 USA
| | - Jerome Schultz
- Department of Bioengineering, University of California, Riverside, CA 92521 USA
| | - Qian Wang
- Department of Chemistry and Biochemistry and Nanocenter, University of South Carolina, Columbia, SC 29208 USA
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY 10027 USA
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108
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Boronate functionalized magnetic nanoparticles and off-line hyphenation with capillary electrophoresis for specific extraction and analysis of biomolecules containing cis-diols. J Chromatogr A 2009; 1216:7558-63. [DOI: 10.1016/j.chroma.2009.04.040] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 03/31/2009] [Accepted: 04/14/2009] [Indexed: 11/21/2022]
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109
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Huang X, Li S, Schultz JS, Wang Q, Lin Q. A MEMS affinity glucose sensor using a biocompatible glucose-responsive polymer. SENSORS AND ACTUATORS. B, CHEMICAL 2009; 140:603-609. [PMID: 24511207 PMCID: PMC3916006 DOI: 10.1016/j.snb.2009.04.065] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We present a MEMS affinity sensor that can potentially allow long-term continuous monitoring of glucose in subcutaneous tissue for diabetes management. The sensing principle is based on detection of viscosity changes due to affinity binding between glucose and poly(acrylamide-ran-3-acrylamidophenylboronic acid) (PAA-ran-PAAPBA), a biocompatible, glucose-specific polymer. The device uses a magnetically driven vibrating microcantilever as a sensing element, which is fabricated from Parylene and situated in a microchamber. A solution of PAA-ran-PAAPBA fills the microchamber, which is separated from the surroundings by a semi-permeable membrane. Glucose permeates through the membrane and binds reversibly to the phenylboronic acid moiety of the polymer. This results in a viscosity change of the sensing solution, which is obtained by measuring the damped cantilever vibration using an optical lever setup, allowing determination of the glucose concentration. Experimental results demonstrate that the device is capable of detecting glucose at physiologically relevant concentrations from 27 mg/dL to 324 mg/dL. The glucose response time constant of the sensor is approximately 3 min, which can be further improved with device design optimization. Excellent reversibility and stability are observed in sensor responses, as highly desired for long-term, stable continuous glucose monitoring.
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Affiliation(s)
- Xian Huang
- Department of Mechanical Engineering, Columbia University, New York, NY, USA
| | - Siqi Li
- Department of Chemistry and Biochemistry and Nanocenter, University of South Carolina, Columbia, SC, USA
| | - Jerome S. Schultz
- Department of Bioengineering, University of California, Riverside, CA, USA
| | - Qian Wang
- Department of Chemistry and Biochemistry and Nanocenter, University of South Carolina, Columbia, SC, USA
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY, USA
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110
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Ni N, Choudhary G, Peng H, Li M, Chou HT, Lu CD, Gilbert ES, Wang B. Inhibition of Quorum Sensing inVibrio harveyiby Boronic Acids. Chem Biol Drug Des 2009; 74:51-6. [DOI: 10.1111/j.1747-0285.2009.00834.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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111
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Cao Z, Nandhikonda P, Heagy MD. Highly water-soluble monoboronic acid probes that show optical sensitivity to glucose based on 4-sulfo-1,8-naphthalic anhydride. J Org Chem 2009; 74:3544-6. [PMID: 19351178 PMCID: PMC2736147 DOI: 10.1021/jo9002008] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two highly water-soluble monoboronic acid probes that display the more desirable off-on fluorescence response were synthesized based on 4-sulfo-1,8-naphthalic anhydride and a remarkable sensitivity for glucose rather than fructose and galactose was also observed.
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Affiliation(s)
- Zhi Cao
- Department of Chemistry, New Mexico Institute of Mining & Technology, Socorro, New Mexico 87801
| | - Premchendar Nandhikonda
- Department of Chemistry, New Mexico Institute of Mining & Technology, Socorro, New Mexico 87801
| | - Michael D. Heagy
- Department of Chemistry, New Mexico Institute of Mining & Technology, Socorro, New Mexico 87801
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112
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Jin S, Zhu C, Li M, Wang B. Identification of the first fluorescent alpha-amidoboronic acids that change fluorescent properties upon sugar binding. Bioorg Med Chem Lett 2009; 19:1596-9. [PMID: 19243941 PMCID: PMC2684785 DOI: 10.1016/j.bmcl.2009.02.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2008] [Revised: 02/03/2009] [Accepted: 02/04/2009] [Indexed: 11/24/2022]
Abstract
The first amidoboronic acids were identified that show significant fluorescent property changes upon binding with various carbohydrates.
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Affiliation(s)
- Shan Jin
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4098, USA. Fax: +1 404-413-5543; Tel.: +1 404-413-5544; E-mail:
| | - Chunyuan Zhu
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4098, USA. Fax: +1 404-413-5543; Tel.: +1 404-413-5544; E-mail:
| | - Minyong Li
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4098, USA. Fax: +1 404-413-5543; Tel.: +1 404-413-5544; E-mail:
| | - Binghe Wang
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4098, USA. Fax: +1 404-413-5543; Tel.: +1 404-413-5544; E-mail:
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113
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Shimpuku C, Ozawa R, Sasaki A, Sato F, Hashimoto T, Yamauchi A, Suzuki I, Hayashita T. Selective glucose recognition by boronic acid azoprobe/gamma-cyclodextrin complexes in water. Chem Commun (Camb) 2009:1709-11. [PMID: 19294270 DOI: 10.1039/b819938h] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The phenylboronic acid azoprobe (BA-Azo)/gamma-cyclodextrin (gamma-CD) complex exhibits a selective response for D-glucose by forming a supramolecular 2:1 inclusion complex of the azoprobes with D-glucose inside the gamma-CD cavity.
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Affiliation(s)
- Chie Shimpuku
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan
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114
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Li S, Davis EN, Anderson J, Lin Q, Wang Q. Development of boronic acid grafted random copolymer sensing fluid for continuous glucose monitoring. Biomacromolecules 2009; 10:113-8. [PMID: 19067585 PMCID: PMC2633622 DOI: 10.1021/bm8009768] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have previously presented a microelectromechanical system (MEMS) based viscometric sensor for continuous glucose monitoring using protein Concanavalin A (Con A). To address its drawbacks, including immunotoxicity and instability issues, we have synthesized stable, biocompatible copolymers poly(acrylamide-ran-3-acrylamidophenylboronic acid) (PAA-ran-PAAPBA) for viscosity based glucose sensing. We found that PAA-ran-PAAPBA showed very high binding specificity to glucose. Several key factors such as polymer compositions, polymer molecular weights and polymer concentrations have been investigated to optimize viscometric responses. This polymer is able to detect glucose under physiological pH conditions in a reversible manner. Therefore, it has the potential to enable a highly reliable, continuous monitoring of glucose in subcutaneous tissue using the MEMS device.
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115
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116
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117
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Ni N, Li M, Wang J, Wang B. Inhibitors and antagonists of bacterial quorum sensing. Med Res Rev 2009; 29:65-124. [DOI: 10.1002/med.20145] [Citation(s) in RCA: 158] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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118
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Jin S, Choudhary G, Cheng Y, Dai C, Li M, Wang B. Fluoride protects boronic acids in the copper(i)-mediated click reaction. Chem Commun (Camb) 2009:5251-3. [DOI: 10.1039/b909575f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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119
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Egawa Y, Gotoh R, Seki T, Anzai JI. Sugar response of boronic acid-substituted azobenzene dye-modified polymer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.05.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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120
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Levonis SM, Kiefel MJ, Houston TA. Boronolectin with divergent fluorescent response specific for free sialic acid. Chem Commun (Camb) 2009:2278-80. [DOI: 10.1039/b900836p] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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121
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Zhang S, Kang XN, Liu YK. Alteration of glycan structure in liver cancer. Shijie Huaren Xiaohua Zazhi 2008; 16:4071-4074. [DOI: 10.11569/wcjd.v16.i36.4071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Glycosylation is a common post-translational protein modification, and almost half of all proteins have been estimated to be glycosylated. Protein glycosylation produces lots of glycans and altered glycan structures are associated with physiological and pathological process, including malignant transformation and invasion. This review describes the structure and function of glycans and highlights changes in glycan structure associated with liver cancer.
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122
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Shen S, Zhang F, Zeng S, Zheng J. An approach based on liquid chromatography/electrospray ionization-mass spectrometry to detect diol metabolites as biomarkers of exposure to styrene and 1,3-butadiene. Anal Biochem 2008; 386:186-93. [PMID: 19111668 DOI: 10.1016/j.ab.2008.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 11/25/2008] [Accepted: 12/08/2008] [Indexed: 11/26/2022]
Abstract
Styrene and 1,3-butadiene are important intermediates used extensively in the plastics industry. They are metabolized mainly through cytochrome P450-mediated oxidation to the corresponding epoxides, which are subsequently converted to diols by epoxide hydrolase or through spontaneous hydration. The resulting styrene glycol and 3-butene-1,2-diol have been suggested as biomarkers of exposure to styrene and 1,3-butadiene, respectively. Unfortunately, poor ionization of the diols within electrospray mass spectrometers becomes an obstacle to the detection of the two diols by liquid chromatography/electrospray ionization-mass spectrometry (LC/ESI-MS). We developed an LC/ESI-MS approach to analyze styrene glycol and 3-butene-1,2-diol by means of derivatization with 2-bromopyridine-5-boronic acid (BPBA), which not only dramatically increases the sensitivity of diol detection but also facilitates the identification of the diols. The analytical approach developed was simple, quick, and convincing without the need for complicated chemical derivatization. To evaluate the feasibility of BPBA as a derivatizing reagent of diols, we investigated the impact of diol configuration on the affinity of a selection of diols to BPBA using the established LC/ESI-MS approach. We found that both cis and trans diols can be derivatized by BPBA. In conclusion, BPBA may be used as a general derivatizing reagent for the detection of vicinal diols by LC/MS.
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Affiliation(s)
- Shuijie Shen
- Department of Pharmaceutical Analysis and Drug Metabolism, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
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123
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Li S, Huang X, Davis EN, Lin Q, Wang Q. Development of novel glucose sensing fluids with potential application to microelectromechanical systems-based continuous glucose monitoring. J Diabetes Sci Technol 2008; 2:1066-74. [PMID: 19885295 PMCID: PMC2769820 DOI: 10.1177/193229680800200615] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND We have previously presented a microelectromechanical systems (MEMS) viscometric sensor for continuous glucose monitoring. The sensing fluid used therein was based on protein concanavalin A, which is known to have significant drawbacks, such as immunotoxicity and instability. To address this issue, a stable, biocompatible polymeric sensing fluid has been developed. METHODS In the polymeric sensing system, glucose reversibly formed strong ester bonds with the phenylboronic acid moiety on the poly(acrylamide-ran-3-acrylamidophenylboronic acid) (PAA-ran-PAAPBA) polymer backbone, resulting in cross-linking of the copolymers and an increase in the solution viscosity. The copolymers were synthesized via classic free radical copolymerization processes. The viscosity of the PAA-ran-PAAPBA, dissolved in phosphate-buffered saline buffer and in the presence of glucose at physiologically relevant concentrations, was measured by an Ubbelodhe viscometer and a prototype MEMS viscometric device. RESULTS Experimental results showed that the polymer molecular weight and composition depended on the solvent quantity, while the sensing fluid viscosity was determined by the polymer molecular weight and percentage composition of PAAPBA. The study of the temperature effect on viscosity showed that the polymer sensed glucose effectively under physiological conditions, although the high temperature lowered its sensitivity. Through proper adjustment of these parameters, a distinctive viscosity increase was observed when the glucose concentration increased from 0 to 450 mg/dl, which was detectable by our prototype MEMS device. CONCLUSIONS We have successfully developed a stable, biocompatible polymeric system for the sensitive detection of glucose. MEMS experiments demonstrated that the sensing fluid was able to sense glucose at different concentrations. This sensing system can potentially enable highly reliable, continuous monitoring of glucose in interstitial fluid from subcutaneous tissue.
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Affiliation(s)
- Siqi Li
- University of South Carolina, Columbia, South Carolina
| | | | - Erin N. Davis
- University of South Carolina, Columbia, South Carolina
| | - Qiao Lin
- Columbia University, New York, New York
| | - Qian Wang
- University of South Carolina, Columbia, South Carolina
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124
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Chen ML, Adak A, Yeh NC, Yang WB, Chuang YJ, Wong CH, Hwang KC, Hwu JR, Hsieh SL, Lin CC. Fabrication of an Oriented Fc-Fused Lectin Microarray through Boronate Formation. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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125
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Chen ML, Adak A, Yeh NC, Yang WB, Chuang YJ, Wong CH, Hwang KC, Hwu JR, Hsieh SL, Lin CC. Fabrication of an Oriented Fc-Fused Lectin Microarray through Boronate Formation. Angew Chem Int Ed Engl 2008; 47:8627-30. [DOI: 10.1002/anie.200803377] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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126
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Li M, Lin N, Huang Z, Du L, Altier C, Fang H, Wang B. Selecting aptamers for a glycoprotein through the incorporation of the boronic acid moiety. J Am Chem Soc 2008; 130:12636-8. [PMID: 18763762 DOI: 10.1021/ja801510d] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first general method for the selection of boronic acid-based aptamers (boronolectins) that allows for glycan substructure focusing is described. Using fibrinogen as a model glycoprotein, we have selected boronic acid-modified DNA aptamers that have high affinities (low nM Kd) and the ability to recognize changes in the glycosylation site. The method developed should also be applicable to the development of aptamers for other glycoproducts, such as glycolipids and glycopeptides.
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Affiliation(s)
- Minyong Li
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, Georgia 30302-4098, USA
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127
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Jin S, Wang J, Li M, Wang B. Synthesis, evaluation, and computational studies of naphthalimide-based long-wavelength fluorescent boronic Acid reporters. Chemistry 2008; 14:2795-804. [PMID: 18228545 DOI: 10.1002/chem.200701785] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Boronic acids that change fluorescence properties upon sugar binding are very useful for the synthesis of carbohydrate sensors. Along this line, boronic acids that fluoresce beyond 500 nm are especially useful. A series of boronic acid fluorescent reporter compounds based on the 4-amino-1,8-naphthalimide structure have been synthesized (1a-d) and evaluated under near physiological conditions. These compounds showed good water solubility and significant changes in fluorescence properties after binding with sugars, with the emission wavelength being at around 570 nm. Analogues in this series with different substitutions showed similar properties. We have also examined the mechanism of the observed fluorescence changes for these compounds.
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Affiliation(s)
- Shan Jin
- Department of Chemistry and Center for Biotechnology and Drug Design, Gerogia State University, Atlanta, GA 30302-4089, USA
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128
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Jin S, Li M, Zhu C, Tran V, Wang B. Computer-Based De Novo Design, Synthesis, and Evaluation of Boronic Acid-Based Artificial Receptors for Selective Recognition of Dopamine. Chembiochem 2008; 9:1431-8. [DOI: 10.1002/cbic.200700663] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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129
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Modeling the excitation wavelengths (lambda(ex)) of boronic acids. J Mol Model 2008; 14:441-9. [PMID: 18351403 DOI: 10.1007/s00894-008-0293-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 02/18/2008] [Indexed: 10/22/2022]
Abstract
The quantitative structure-property relationship (QSPR) method was used to model the fluorescence excitation wavelengths (lambda(ex)) of 42 boronic acid-based fluorescent biosensors (30 in the training set and 12 in the test set). In this QSPR study, unsupervised forward selection (UFS), stepwise multiple linear regression (SMLR), partial least squares regression (PLS) and associative neural networks (ASNN) were employed to simulate linear and nonlinear models. All models were validated by a test set and Tropsha's validation model. The resulting ASNN nonlinear model demonstrates significant improvement on the predictive ability of the neural network compared to the SMLR and PLS linear models. The descriptors used in the models are discussed in detail. These QSPR models are useful tools for the prediction of fluorescence excitation wavelengths of arylboronic acids.
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130
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Zou Y, Broughton DL, Bicker KL, Thompson PR, Lavigne JJ. Peptide Borono Lectins (PBLs): A New Tool for Glycomics and Cancer Diagnostics. Chembiochem 2007; 8:2048-51. [DOI: 10.1002/cbic.200700221] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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131
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Akay S, Yang W, Wang J, Lin L, Wang B. Synthesis and Evaluation of Dual Wavelength Fluorescent Benzo[b]thiophene Boronic Acid Derivatives for Sugar Sensing. Chem Biol Drug Des 2007; 70:279-89. [PMID: 17868073 DOI: 10.1111/j.1747-0285.2007.00563.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cell surface glycoproteins have been known to play very important roles in various physiologic and pathologic processes. Small molecule compounds capable of carbohydrate recognition can be very useful for the development of sensing, diagnostic, and therapeutic agents. Along this line, we are interested in developing water-soluble fluorescent boronic acid compounds for carbohydrate recognition. As such, a series of benzo[b]thiophene boronic acid derivatives have been synthesized and their fluorescent properties analyzed at physiologic pH. Benzo[b]thiophene derivatives were found to be a new type of fluorescent reporter compounds capable of dual fluorescent emission under physiologic pH conditions. Compounds 1, 3, 4, 5, and 6 showed unusual emission wavelength shifts upon binding of sugars. These boronic acids will be useful tools for building glycoprotein biosensors for biologic applications.
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Affiliation(s)
- Senol Akay
- Department of Chemistry, Georgia State University, Atlanta, GA 30302-4098, USA
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132
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Akay S, Yang W, Wang J, Lin L, Wang B. Synthesis and Evaluation of Dual Wavelength Fluorescent Benzo[b]thiophene Boronic Acid Derivatives for Sugar Sensing. Chem Biol Drug Des 2007. [DOI: 10.1111/j.1399-3011.2007.00563.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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133
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Schneider HJ, Kato K, Strongin RM. Chemomechanical Polymers as Sensors and Actuators for Biological and Medicinal Applications. SENSORS 2007; 7:1578-1611. [PMID: 19606275 PMCID: PMC3814870 DOI: 10.3390/s7081578] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Changes in the chemical environment can trigger large motions in chemomechanical polymers. The unique feature of such intelligent materials, mostly in the form of hydrogels, is therefore, that they serve as sensors and actuators at the same time, and do not require any measuring devices, transducers or power supplies. Until recently the most often used of these materials responded to changes in pH. Chemists are now increasingly using supramolecular recognition sites in materials, which are covalently bound to the polymer backbone. This allows one to use a nearly unlimited variety of guest (or effector) compounds in the environment for a selective response by automatically triggered size changes. This is illustrated with non-covalent interactions of effectors comprising of metal ions, isomeric organic compounds, including enantiomers, nucleotides, aminoacids, and peptides. Two different effector molecules can induce motions as functions of their concentration, thus representing a logical AND gate. This concept is particularly fruitful with effector compounds such as peptides, which only trigger size changes if, e.g. copper ions are present in the surroundings. Another principle relies on the fast formation of covalent bonds between an effector and the chemomechanical polymer. The most promising application is the selective interaction of covalently fixed boronic acid residues with glucose, which renders itself not only for sensing, but eventually also for delivery of drugs such as insulin. The speed of the responses can significantly increase by increasing the surface to volume ratio of the polymer particles. Of particular interest is the sensitivity increase which can be reached by downsizing the particle volume.
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Affiliation(s)
- Hans-Jörg Schneider
- FR Organische Chemie der Universität des Saarlandes, D-66041 Saarbrücken, Germany
- Authors to whom correspondence should be addressed; E-mails: ;
| | - Kazuaki Kato
- FR Organische Chemie der Universität des Saarlandes, D-66041 Saarbrücken, Germany
- Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8562, Japan; E-mail:
| | - Robert M. Strongin
- Department of Chemistry, Portland State University, Portland, OR, 97201, USA
- Authors to whom correspondence should be addressed; E-mails: ;
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134
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Zheng SL, Lin N, Reid S, Wang B. Effect of extended conjugation with a phenylethynyl group on the fluorescent properties of water-soluble arylboronic acids. Tetrahedron 2007; 63:5427-5436. [PMID: 19568321 DOI: 10.1016/j.tet.2007.04.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Boronic acids that change fluorescent properties upon sugar binding are very important reporter units for the development of small molecule lectin mimics (boronolectins). Aimed at developing long wavelength fluorescent boronic acid reporter compounds, we have designed and synthesized a series of boronic acid analogs 2a-d with an extended π conjugation. Such designs are based on earlier fluorescent boronic acids that change fluorescent properties upon sugar binding. Compared with the corresponding parent chromophores, these new compounds with extended conjugations show longer excitation and emission wavelengths as designed. The patterns of fluorescent changes for the new compounds are also different from that of the corresponding parent compounds.
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Affiliation(s)
- Shi-Long Zheng
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4098, USA
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135
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Wang J, Jin S, Akay S, Wang B. Design and Synthesis of Long-Wavelength Fluorescent Boronic Acid Reporter Compounds. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700008] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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136
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Tan W, Zhang D, Zhu D. 4-N-Methyl-N′-(2-dihydroxyboryl-benzyl)amino benzonitrile and its boronate analogue sensing saccharides and fluoride ion. Bioorg Med Chem Lett 2007; 17:2629-33. [PMID: 17303415 DOI: 10.1016/j.bmcl.2007.01.099] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2006] [Accepted: 01/30/2007] [Indexed: 11/25/2022]
Abstract
DMABN (4-N,N-dimethylaminobenzonitrile) derivatives 1 and 2 were designed as new ratiometric fluorescent sensors for saccharides and fluoride ion (F(-)), respectively, based on the TICT (twisted intramolecular charge transfer) mechanism.
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Affiliation(s)
- Wei Tan
- Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
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137
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Zhang Y, Li M, Chandrasekaran S, Gao X, Fang X, Lee HW, Hardcastle K, Yang J, Wang B. A unique quinolineboronic acid-based supramolecular structure that relies on double intermolecular B-N bonds for self-assembly in solid state and in solution. Tetrahedron 2007; 63:3287-3292. [PMID: 18414645 PMCID: PMC1950139 DOI: 10.1016/j.tet.2007.02.04] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
The boronic acid functional group plays very important roles in sugar recognition, catalysis, organic synthesis, and supramolecular assembly. Therefore, understanding the unique properties of this functional group is very important. 8-Quinolineboronic acid (8-QBA) is found to be capable of self-assembling in solid state through a unique intermolecular B-N bond mechanism reinforced by intermolecular boronic anhydride formation, π-π stacking, and hydrogen bond formation. NMR NOE and diffusion studies indicate that intermolecular B-N interaction also exists in solution with 8-QBA. In contrast, a positional isomer of 8-QBA, 5-quinolineboronic acid (5-QBA) showed very different behaviors in crystal packing and in solution and therefore different supramolecular network. Understanding the structural features of this unique 8-QBA assembly could be very helpful for the future design of new sugar sensors, molecular catalysts, and supramolecular assemblies.
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Affiliation(s)
- Yanling Zhang
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
| | - Minyong Li
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
| | - Sekar Chandrasekaran
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
| | - Xingming Gao
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
| | - Xikui Fang
- X-ray Crystallography Center, Department of Chemistry, Emory University, Atlanta, GA 30322
| | - Hsiau-Wei Lee
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
| | - Kenneth Hardcastle
- X-ray Crystallography Center, Department of Chemistry, Emory University, Atlanta, GA 30322
| | - Jenny Yang
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
| | - Binghe Wang
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089
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138
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Zhang Y, Li M, Chandrasekaran S, Gao X, Fang X, Lee HW, Hardcastle K, Yang J, Wang B. A unique quinolineboronic acid-based supramolecular structure that relies on double intermolecular B–N bonds for self-assembly in solid state and in solution. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.02.042] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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139
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Sørensen MD, Martins R, Hindsgaul O. Assessing the Terminal Glycosylation of a Glycoprotein by the Naked Eye. Angew Chem Int Ed Engl 2007; 46:2403-7. [PMID: 17328026 DOI: 10.1002/anie.200604936] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mads D Sørensen
- Carlsberg Laboratory, Gamle Carlsberg Vej 10, 2500 Copenhagen-Valby, Denmark
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140
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Sørensen M, Martins R, Hindsgaul O. Assessing the Terminal Glycosylation of a Glycoprotein by the Naked Eye. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604936] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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141
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Lin N, Yan J, Huang Z, Altier C, Li M, Carrasco N, Suyemoto M, Johnston L, Wang S, Wang Q, Fang H, Caton-Williams J, Wang B. Design and synthesis of boronic-acid-labeled thymidine triphosphate for incorporation into DNA. Nucleic Acids Res 2007; 35:1222-9. [PMID: 17267413 PMCID: PMC1851626 DOI: 10.1093/nar/gkl1091] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
The boronic acid moiety is a versatile functional group useful in carbohydrate recognition, glycoprotein pull-down, inhibition of hydrolytic enzymes and boron neutron capture therapy. The incorporation of the boronic-acid group into DNA could lead to molecules of various biological functions. We have successfully synthesized a boronic acid-labeled thymidine triphosphate (B-TTP) linked through a 14-atom tether and effectively incorporated it into DNA by enzymatic polymerization. The synthesis was achieved using the Huisgen cycloaddition as the key reaction. We have demonstrated that DNA polymerase can effectively recognize the boronic acid-labeled DNA as the template for DNA polymerization, that allows PCR amplification of boronic acid-labeled DNA. DNA polymerase recognitions of the B-TTP as a substrate and the boronic acid-labeled DNA as a template are critical issues for the development of DNA-based lectin mimics via in vitro selection.
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Affiliation(s)
- Na Lin
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Jun Yan
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Zhen Huang
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Craig Altier
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Minyong Li
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Nicolas Carrasco
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Mitsu Suyemoto
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Lynette Johnston
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Siming Wang
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Qian Wang
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Hao Fang
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Julianne Caton-Williams
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
| | - Binghe Wang
- Department of Chemistry and Center for Biotechnology and Drug Design, Campus Box 4098, Georgia State University, Atlanta, GA 30302-4098, USA, College of Veterinary Medicine, North Carolina State University, 4700 Hillsborough St., Raleigh, NC 27606, USA and Department of Chemistry and Biochemistry, 631 Sumter St. University of South Carolina, Columbia, SC 29202, USA
- *To whom correspondence should be addressed. Tel: +1 404 651 0289; Fax: +1 404 654 5827;
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142
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Petasis NA. Expanding Roles for Organoboron Compounds – Versatile and Valuable Molecules for Synthetic, Biological and Medicinal Chemistry. Aust J Chem 2007. [DOI: 10.1071/ch07360] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The present essay offers an overview of the latest developments in the chemistry of organoboron compounds. The unique structural characteristics and the versatile reactivity profile of organoboron compounds continue to expand their roles in several areas of chemistry. A growing number of boron-mediated reactions have become vital tools for synthetic chemistry, particularly in asymmetric synthesis, metal-catalyzed processes, acid catalysis, and multicomponent reactions. As a result, boronic acids and related molecules have now evolved as major players in synthetic and medicinal chemistry. Moreover, their remnant electrophilic reactivity, even under physiological conditions, has allowed their incorporation in a growing number of bioactive molecules, including bortezomib, a clinically approved anticancer agent. Finally, the sensitive and selective binding of boronic acids to diols and carbohydrates has led to the development of a growing number of novel chemosensors for the detection, quantification, and imaging of glucose and other carbohydrates. There is no doubt that the chemistry of organoboron compounds will continue to expand into new discoveries and new applications in several fields of science.
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143
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Tan W, Zhang D, Wang Z, Liu C, Zhu D. 4-(N,N-Dimethylamine)benzonitrile (DMABN) derivatives with boronic acid and boronate groups: new fluorescent sensors for saccharides and fluoride ion. ACTA ACUST UNITED AC 2007. [DOI: 10.1039/b618183j] [Citation(s) in RCA: 51] [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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144
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Houston TA, Levonis SM, Kiefel MJ. Tapping into Boron/?-Hydroxycarboxylic Acid Interactions in Sensing and Catalysis. Aust J Chem 2007. [DOI: 10.1071/ch07222] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Whereas interaction of boron acids (boric and boronic) with diols and neutral sugar ligands has received much global research attention in recent years, the binding of simple α-hydroxycarboxylic and sugar acids by boron has received less attention. Applications of boron-based fluorescent sensors and chemoselective catalysts targeting this functional motif have appeared only in the past 5 years. The present synopsis will focus on rapid developments that have occurred in both areas during this half decade.
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145
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Duggan PJ, Offermann DA. The Preparation of Solid-Supported Peptide Boronic Acids Derived from 4-Borono-L-phenylalanine and their Affinity for Alizarin. Aust J Chem 2007. [DOI: 10.1071/ch07143] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A library of solid-supported pentapeptide diboronic acids, a ‘lysine series’ and an ‘arginine series’, has been efficiently prepared using N-Fmoc-4-pinacolatoborono-l-phenylalanine and standard solid phase peptide synthesis methods. A technique for measuring the affinity of the chromophoric diol, alizarin, to the solid-supported peptide boronic acids has been developed. Considerable variation in alizarin binding strengths, both within and between arginine and lysine series was observed, with association constants in the range 200–1100 M–1 being recorded. The selective binding characteristics of these boronic acid–peptide hybrids suggest their potential use in carbohydrate sensors and cell-specific diagnostics and therapeutics.
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146
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Wang J, Jin S, Lin N, Wang B. Fluorescent indolylboronic acids that are useful reporters for the synthesis of boronolectins. Chem Biol Drug Des 2006; 67:137-44. [PMID: 16492161 DOI: 10.1111/j.1747-0285.2005.00338.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Lectins are known to regulate a wide variety of biological processes. Therefore, small molecule mimics of lectins have the potential to be used as novel diagnostic and therapeutic agents. In our combinatorial search for lectin mimics, we are in need a large number of boronic acids that change fluorescent properties upon carbohydrate binding. Along this line, a series of indolylboronic acids have been found to show significant fluorescent property changes upon binding with carbohydrates in 0.1 M phosphate buffer at physiological pH. These boronic acids will be very useful for the synthesis of lectin mimics for biological applications.
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Affiliation(s)
- Junfeng Wang
- Department of Chemistry, Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4098, USA
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147
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Zhang Y, Gao X, Hardcastle K, Wang B. Water-soluble fluorescent boronic acid compounds for saccharide sensing: substituent effects on their fluorescence properties. Chemistry 2006; 12:1377-84. [PMID: 16294348 DOI: 10.1002/chem.200500982] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Four new naphthalene-based boronic acid compounds (1-4) were synthesized. The effect of various carbohydrates on their fluorescence properties has been studied in aqueous phosphate buffer at pH 7.4. Different substitutions on the aniline group of the naphthalene ring resulted in significant differences in fluorescence properties for these four compounds. Compound 1 shows ratiometric fluorescence changes upon addition of a sugar. Compounds 2 and 3 do not show ratiometric fluorescence changes but show very large fluorescence intensity changes (about 70-fold fluorescence intensity increase). In addition to the quantifiable fluorescence property changes upon sugar addition, the fluorescence color changes of 1-3 are also visible to the naked eye. However, amidation of the aniline nitrogen atom significantly diminishes the fluorescence intensity of compound 4. The crystal structure of one boronic acid provided some insight into the structural features that are important for the fluorescence properties of these compounds.
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Affiliation(s)
- Yanling Zhang
- Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30302-4089, USA
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148
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Zheng SL, Reid S, Lin N, Wang B. Microwave-assisted synthesis of ethynylarylboronates for the construction of boronic acid-based fluorescent sensors for carbohydrates. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.02.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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149
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Kaur G, Fang H, Gao X, Li H, Wang B. Substituent effect on anthracene-based bisboronic acid glucose sensors. Tetrahedron 2006. [DOI: 10.1016/j.tet.2005.12.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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150
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