1
|
Wu YC, Zhang XW, Huang YC, Lu IC. Advancing carbohydrate quantification in MALDI mass spectrometry by the rapidly freeze-drying droplet (RFDD) method. Analyst 2024; 149:1766-1773. [PMID: 38372348 DOI: 10.1039/d3an02201c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Quantitative carbohydrate analysis faces challenges in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS), including insufficient sensitivity and inconsistent spatial distribution of ion intensity. This study introduces an innovative sample preparation approach, the Rapidly Freeze-Drying Droplet (RFDD) method, aimed at overcoming these challenges by enhancing the homogeneity of the sample morphology and signal intensity in MALDI. Compared to conventional preparation methods, the RFDD method reduces the laser energy threshold and demonstrates a remarkable increase in signal intensity for carbohydrates, facilitating the detection of high-molecular-weight polysaccharides (>10 kDa). The RFDD-prepared samples exhibit a uniformly distributed signal intensity that overcomes the 'sweet spot' issue in MALDI. The enhanced signal intensity and reproducibility lead to reliable quantitative analysis of carbohydrates, eliminating the need for expensive isotopic standards in each sample. A straightforward and accessible approach is presented for general laboratories, revolutionizing carbohydrate analysis in MALDI-MS.
Collapse
Affiliation(s)
- Yu-Cheng Wu
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan.
| | - Xin-Wen Zhang
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan.
| | - Yi-Ching Huang
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan.
| | - I-Chung Lu
- Department of Chemistry, National Chung Hsing University, Taichung City 40227, Taiwan.
| |
Collapse
|
2
|
Verbeke R, Nulens I, Thijs M, Lenaerts M, Bastin M, Van Goethem C, Koeckelberghs G, Vankelecom IF. Solutes in solvent resistant and solvent tolerant nanofiltration: How molecular interactions impact membrane rejection. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
|
3
|
Rajendiran V, El Rassi Z. Retention behaviors of pre-column derivatized mono-, di- and oligosaccharides in various modes of high performance liquid chromatography. J Chromatogr A 2022; 1682:463508. [PMID: 36155077 DOI: 10.1016/j.chroma.2022.463508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/11/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022]
Abstract
Three LC-based methods, including reversed-phase chromatography (RPC), ion-pair RPC and weak anion-exchange chromatography (WAX), were examined in the separations of precolumn derivatized mono- and oligosaccharides with the following three tagging agents: 1-naphthylamine (1-NA), 2-aminoanthracene (2-AA), and 3-amino-2,7-naphthalenedisulfonic acid (ANDSA). Due to differences in their charges and polarity, the three tagging agents imparted the sugar derivatives varying elution patterns in the three, just mentioned, chromatographic modes. While RPC yielded high resolution separations for 1-NA- and 2-AA-sugar derivatives, ion-pair RPC in the presence of the ion-pairing agent dodecyl trimethylammonium bromide (DTAB) in the mobile phase exhibited far more resolution and selectivity than WAX in the separation of ANDSA-sugar derivatives. This finding portrays the fact that an octadecyl column operating in ion-pair RPC mode can eliminate in most cases the need for an ion-exchange column for bioanalytical separations of ionic or ionizable species. Lastly, the characteristics of each chromatographic mode in the analysis of derivatized sugars are described using various mobile phase compositions.
Collapse
Affiliation(s)
- Vaithilingam Rajendiran
- Department of Chemistry, Oklahoma State University Stillwater, Stillwater, OK 74078-3071, United States
| | - Ziad El Rassi
- Department of Chemistry, Oklahoma State University Stillwater, Stillwater, OK 74078-3071, United States.
| |
Collapse
|
4
|
The structures and applications of microbial chondroitin AC lyase. World J Microbiol Biotechnol 2022; 38:199. [PMID: 35996038 DOI: 10.1007/s11274-022-03395-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/16/2022] [Indexed: 10/15/2022]
Abstract
As an important glycosaminoglycan hydrolase, chondroitin lyases can hydrolyze chondroitin sulfate (CS) and release disaccharides and oligosaccharides. They are further divided into chondroitin AC, ABC, and B lyases according to their spatial structure and substrate specificity. Chondroitin AC lyase can hydrolyze chondroitin sulfate A (CS-A), chondroitin sulfate C (CS-C), and hyaluronic acid (HA), making it an essential biocatalyst for the preparation of low molecular weight chondroitin sulfate, analysis of the structure of the chondroitin sulfate, treatment of spinal cord injury, and purification of heparin. This paper provides an overview of reported chondroitin AC lyases, including their properties and the challenges faced in industrial applications. Up to now, although many attempts have been adopted to improve the enzyme properties, the most important factors are still the low activity and stability. The relations between the stability of the enzyme and the spatial structure were also summarized and discussed. Also perspectives for remodeling the enzymes with protein engineering are included.
Collapse
|
5
|
Development and Validation of HPLC-DAD Method with Pre-Column PMP Derivatization for Monomeric Profile Analysis of Polysaccharides from Agro-Industrial Wastes. Polymers (Basel) 2022; 14:polym14030544. [PMID: 35160536 PMCID: PMC8838364 DOI: 10.3390/polym14030544] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/12/2022] [Accepted: 01/25/2022] [Indexed: 01/19/2023] Open
Abstract
The instrumental analysis of complex mixtures of sugars often requires derivatization to enhance the method’s selectivity and sensitivity. 1-Phenyl-3-methyl-5-pyrazolone (PMP) is a common sugar derivatization agent used in high-performance liquid chromatography (HPLC). Although many C18 column applications for PMP–sugar derivative analysis have been developed, their transferability is not straightforward due to variations in column chemistry and preparation technology. The aim of this study was to develop and validate an application for Zorbax Extend C18 columns for the analysis of 8 neutral and 2 acidic sugars commonly found in plant polysaccharides. The method was further compared to well-established alditol acetates and m-hydroxydiphenyl methods and employed for sugar profiling of selected agro-industrial wastes. The most influential separation factors were the mobile-phase pH and acetonitrile content, optimized at 8.0 and a 12–17% gradient, respectively. The method showed excellent linearity, repeatability and intermediate precision. High sensitivity was achieved, especially for neutral sugars, with an accuracy error range of 5–10% relative standard deviation. The sugar profiling results were highly correlated to the reference method for neutral sugars. The HPLC method was highly applicable for the evaluation of polysaccharides in selected wastes and showed advantages in terms of simplicity, accuracy in acidic sugar determination and suitability for their simultaneous analysis with neutral sugars.
Collapse
|
6
|
Abstract
Food carbohydrates are macronutrients that are found in fruits, grains, vegetables, and milk products. These organic compounds are present in foods in the form of sugars, starches, and fibers and are composed of carbon, hydrogen, and oxygen. These wide ranging macromolecules can be classified according to their chemical structure into three major groups: low molecular weight mono- and disaccharides, intermediate molecular weight oligosaccharides, and high molecular weight polysaccharides. Notably, the digestibility of specific carbohydrate components differ and nondigestible carbohydrates can reach the large intestine intact where they act as food sources for beneficial bacteria. In this review, we give an overview of advances made in food carbohydrate analysis. Overall, this review indicates the importance of carbohydrate analytical techniques in the quest to identify and isolate health-promoting carbohydrates to be used as additives in the functional foods industry.
Collapse
Affiliation(s)
- Leonie J Kiely
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Rita M Hickey
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.
| |
Collapse
|
7
|
van der Burg D, Josefsson L, Mikkonen S, Chotteau V, Emmer Å, Wätzig H, Sänger-van de Griend CE. Method development for mono- and disaccharides monitoring in cell culture medium by capillary and microchip electrophoresis. Electrophoresis 2021; 43:922-929. [PMID: 34510488 DOI: 10.1002/elps.202100213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/12/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022]
Abstract
The rapidly growing, competitive biopharmaceutical market requires tight bioprocess monitoring. An integrated, automated platform for the routine online/at-line monitoring of key factors in the cell culture medium could greatly improve process monitoring. Mono- and disaccharides, as the main energy and carbon source, are one of these key factors. A CE-LIF method was developed for the analysis of several mono- and disaccharides, considering requirements and restrictions for analysis in an integrated, automated monitoring platform, such as the possibility for miniaturization to microchip electrophoresis. Analysis was performed after fluorescent derivatization with 8-aminopyrene-1,3,6-trisulfonic acid. The derivatisation reaction and the separation BGE were optimized using design of experiments. The developed method is applicable to the complex matrix of cell culture medium and proved transferable to microchip electrophoresis.
Collapse
Affiliation(s)
- Debbie van der Burg
- Kantisto BV, Baarn, The Netherlands.,Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany
| | - Leila Josefsson
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Saara Mikkonen
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Véronique Chotteau
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Åsa Emmer
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Hermann Wätzig
- Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany
| | - Cari E Sänger-van de Griend
- Kantisto BV, Baarn, The Netherlands.,Department of Medicinal Chemistry, Faculty of Pharmacy, Uppsala University, Uppsala, Sweden
| |
Collapse
|
8
|
Guan P, Xie C, Li L, Fang X, Wu F, Hu JJ, Tang K. Structural resolution of disaccharides through halogen anion complexation using negative trapped ion mobility spectrometry. Talanta 2021; 230:122348. [PMID: 33934797 DOI: 10.1016/j.talanta.2021.122348] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/28/2021] [Accepted: 03/18/2021] [Indexed: 01/14/2023]
Abstract
Carbohydrates are an indispensable part of early life evolution. The determination of their structures is a key step to analyze their critical roles in biological systems. A variation of composition, glycosidic linkage, and (or) configuration between carbohydrate isomers induces structure diversity and brings challenges for their structural determination. Ion mobility spectrometry (IMS), an emerging gas-phase ion separation technology, has been considered as a promising tool for performing carbohydrate structure elucidation. In this work, eight disaccharides were analyzed by trapped ion mobility spectrometry-mass spectrometry (TIMS-MS) in the negative ion mode as the complexed form of [M + X]-, where M = disaccharide, and X = Cl, Br, and I. As compared to the positive ion analysis of the selected disaccharide in a sodiated form, a reversal charge state provided the ability to eliminate or even reverse the collision cross section (CCS) difference between disaccharide isomers. By the combination of TIMS analysis and the calculation of density functional theory, the only observed two conformers of ions [lactulose + I]- may result from different adduction sites for an iodide anion. Based on the comparison of different halogen adducts, the [M + I]- ion form exhibited more powerful ability for isomeric disaccharide differentiation with an average resolution (RP-P) of 1.17, which results in a 34.5% improvement as compared to the corresponding chloride adducts. This result indicates that the use of negative charge states, especially the complexation of an iodide anion, could be a supplemental strategy to commonly used positive ion analysis for carbohydrate separation.
Collapse
Affiliation(s)
- Pengfei Guan
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Chengyi Xie
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, PR China
| | - Lei Li
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Xiangyu Fang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Fangling Wu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China
| | - Jun Jack Hu
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China.
| | - Keqi Tang
- Zhejiang Provincial Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis, Institute of Mass Spectrometry, Ningbo University, Ningbo, 315211, PR China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, PR China.
| |
Collapse
|
9
|
Nicolardi S, Joseph AA, Zhu Q, Shen Z, Pardo-Vargas A, Chiodo F, Molinaro A, Silipo A, van der Burgt YEM, Yu B, Seeberger PH, Wuhrer M. Analysis of Synthetic Monodisperse Polysaccharides by Wide Mass Range Ultrahigh-Resolution MALDI Mass Spectrometry. Anal Chem 2021; 93:4666-4675. [PMID: 33667082 PMCID: PMC8034773 DOI: 10.1021/acs.analchem.1c00239] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/19/2021] [Indexed: 12/13/2022]
Abstract
Carbohydrates, such as oligo- and polysaccharides, are highly abundant biopolymers that are involved in numerous processes. The study of their structure and functions is commonly based on a material that is isolated from complex natural sources. However, a more precise analysis requires pure compounds with well-defined structures that can be obtained from chemical or enzymatic syntheses. Novel synthetic strategies have increased the accessibility of larger monodisperse polysaccharides, posing a challenge to the analytical methods used for their molecular characterization. Here, we present wide mass range ultrahigh-resolution matrix-assisted laser desorption/ionization (MALDI) Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) as a powerful platform for the analysis of synthetic oligo- and polysaccharides. Synthetic carbohydrates 16-, 64-, 100-, and 151-mers were mass analyzed and characterized by MALDI in-source decay FT-ICR MS. Detection of fragment ions generated from glycosidic bond cleavage (or cross-ring cleavage) provided information of the monosaccharide content and the linkage type, allowing for the corroboration of the carbohydrate compositions and structures.
Collapse
Affiliation(s)
- Simone Nicolardi
- Center
for Proteomics and Metabolomics, Leiden
University Medical Center, Leiden 2333 ZA, The Netherlands
| | - A. Abragam Joseph
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Qian Zhu
- State
Key Laboratory of Bioorganic and Natural Products Chemistry, Center
for Excellence in Molecular Synthesis, Shanghai Institute of Organic
Chemistry, University of Chinese Academy
of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zhengnan Shen
- School
of Physical Science and Technology, ShanghaiTech
University, 393 Huaxia Middle Road, Shanghai 201210, China
| | - Alonso Pardo-Vargas
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, 14476 Potsdam, Germany
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, Berlin 14195, Germany
| | - Fabrizio Chiodo
- Institute
of Biomolecular Chemistry (ICB), Italian
National Research Council (CNR), Via Campi Flegrei, 34, Pozzuoli, Napoli 80078, Italy
- Amsterdam
UMC-Locatie VUMC, Molecular Cell Biology and Immunology, De Boelelaan 1108, Amsterdam 1081 HZ, The Netherlands
| | - Antonio Molinaro
- Department
of Chemical Sciences, University of Naples
Federico II, Via Cintia 4, Napoli 80126, Italy
| | - Alba Silipo
- Department
of Chemical Sciences, University of Naples
Federico II, Via Cintia 4, Napoli 80126, Italy
| | - Yuri E. M. van der Burgt
- Center
for Proteomics and Metabolomics, Leiden
University Medical Center, Leiden 2333 ZA, The Netherlands
| | - Biao Yu
- State
Key Laboratory of Bioorganic and Natural Products Chemistry, Center
for Excellence in Molecular Synthesis, Shanghai Institute of Organic
Chemistry, University of Chinese Academy
of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School
of Chemistry and Materials Science, Hangzhou Institute for Advanced
Study, University of Chinese Academy of
Sciences, 1 Sub-lane
Xiangshan, Hangzhou 310024, China
| | - Peter H. Seeberger
- Department
of Biomolecular Systems, Max-Planck-Institute
of Colloids and Interfaces, 14476 Potsdam, Germany
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, Berlin 14195, Germany
| | - Manfred Wuhrer
- Center
for Proteomics and Metabolomics, Leiden
University Medical Center, Leiden 2333 ZA, The Netherlands
| |
Collapse
|
10
|
Jang S, Choi SS. Characterization of the fragmentation behaviors of protonated α-cyclodextrin generated by electrospray ionization. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e8967. [PMID: 33037719 DOI: 10.1002/rcm.8967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/02/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Electrospray ionization (ESI) of an aqueous solution of α-cyclodextrin (α-CD) gave a protonated molecule, [α-CD + H]+ . The fragmentation behavior of the protonated molecule, including direct decomposition and ring cleavage, was investigated by varying the source fragmentor voltage. The possible chemical structures of the product ions were also examined using electronic structure calculations. METHODS An aqueous α-CD solution was ionized by ESI and the source fragmentor voltage was varied to examine changes of the product ions depending on collision energy. The structures and energies of the precursor and product ions were obtained by electronic structure calculations using Spartan'10 and Gaussian09. RESULTS The major product ions were [M + H - 162m]+ (where m = 1-5), with the most abundant being [M + H - 162 × 4]+ . The product ions had two chemical structures of the cationic site in the ether linkage ([DPDn - OH]+ ) and in the terminal oxonium ion ([DPn - OH]+ ) formed by direct decomposition of [α-CD + H]+ and fragmentation of the open structure ([DP6 - OH]+ ), respectively. The [DP6 - OH]+ ion is more stable than the [α-CD + H]+ ion. CONCLUSIONS The fragmentation behavior of protonated α-CD was characterized by two pathways: direct decomposition of [α-CD + H]+ and decomposition of the [DP6 - OH]+ open structure. Differences in the relative abundances of product ions were explained by the different fragmentation pathways of [α-CD + H]+ and [DP6 - OH]+ .
Collapse
Affiliation(s)
- Soonmin Jang
- Department of Chemistry, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Sung-Seen Choi
- Department of Chemistry, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
| |
Collapse
|
11
|
Affiliation(s)
- Sunyoung Lee
- Division of Chemical and Biological Metrology Korea Research Institute of Standards and Science (KRISS) Deajeon 34113 Republic of Korea
| | - Ha‐Jeong Kwon
- Division of Chemical and Biological Metrology Korea Research Institute of Standards and Science (KRISS) Deajeon 34113 Republic of Korea
| |
Collapse
|
12
|
Martins MDF, Reis MS, Honório-Ferreira A, Gonçalves CA. Presence of N-acetylneuraminic acid in the lung during postnatal development. Eur J Histochem 2020; 64:3124. [PMID: 32378837 PMCID: PMC7212207 DOI: 10.4081/ejh.2020.3124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 04/18/2020] [Indexed: 12/17/2022] Open
Abstract
Sialic acids, particularly N-acetylneuraminic acid (Neu5Ac), are present as terminal components of rich and complex oligosaccharide chains, which are termed glycans, and are exhibited on the cell surfaces, especially on epithelial cells. Crucial in the 'social behavior' of the cell, sialic acids play vital roles in many physiological and pathological phenomena. The aim of the present study was to separate, identify, and quantify Neu5Ac in purified lung membranes from 4-, 14-, and 21-day-old animals, followed by the statistical analysis of these results with our previously reported data (0-day-old and adult results). Complementary, ultrastructural methodologies were used. The differences in the Neu5Ac values obtained across the examined postnatal-lung development relevant ages studied were found to be statistically significant. A substantial increase in the mean level of this compound was found during the period of 'bulk' alveolarization, which takes place from postnatal day 4 to 14 (P4-P14). The comparison of the mean levels of Neu5Ac, during microvascular maturation (mainly between P12 and P21), reveals that the difference, although statistically significant, is the least significant difference among all the pair-wise differences between the developmental stages. The presence of sub-terminal N-acetylgalactosamine (GalNAc)/Galactose (Gal) residues with terminal sialic acids on the bronchioloalveolar cell surfaces was confirmed using lung ultra-thin sections of adult and 0-day-old animals. These results showed that, although Neu5Ac levels increase throughout postnatal lung development, this sialic acid was substantially added to epithelial cell surfaces during the "bulk" alveolarization period, while its presence was less important during the microvascular maturation period. Bearing in mind that sialic acids are negatively charged and create charge repulsions between adjacent cells, we hypothesized that they can substantially contribute to postnatal alveolar formation and maturation.
Collapse
Affiliation(s)
- Maria de Fátima Martins
- Instituto de Histologia e Embriologia, Faculdade de Medicina, Universidade de Coimbra; Centro Hospitalar e Universitário de Coimbra.
| | - Marco S Reis
- Department of Chemical Engineering, University of Coimbra.
| | - Ana Honório-Ferreira
- Instituto de Histologia e Embriologia, Faculdade de Medicina, Universidade de Coimbra.
| | - Carlos Alberto Gonçalves
- Instituto de Histologia e Embriologia, Faculdade de Medicina, Universidade de Coimbra; Centro Hospitalar e Universitário de Coimbra.
| |
Collapse
|
13
|
Wang W, Chen F, Zheng F, Russell BT. Optimization of synthesis of carbohydrates and 1-phenyl-3-methyl-5-pyrazolone (PMP) by response surface methodology (RSM) for improved carbohydrate detection. Food Chem 2020; 309:125686. [DOI: 10.1016/j.foodchem.2019.125686] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 10/25/2022]
|
14
|
A simple and highly sensitive masking fluorescence detection system for capillary array electrophoresis and its application to food and medicine analysis. J Chromatogr A 2020; 1620:460968. [PMID: 32087880 DOI: 10.1016/j.chroma.2020.460968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/06/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023]
Abstract
A high sampling rate, good stability, high throughput masking fluorescence detection system with easy positioning of each channel for capillary array electrophoresis was prepared and studied. A special mask combined with convex lenses was designed to modulate signals, without using any extra device to position each channel. The signal of each channel was detected by a photomultiplier tube, classified and saved by software. The design was used to evidently reduce the rotational vibration of optical components and to stabilize the system, so a high sampling rate was obtained by increasing the DC motor speed. To improve the optical system, optical fibers instead of conventional bulky optical components were used to transmit optical signal and to collect fluorescences in multiple directions, which greatly raised the sensitivity. Other important parameters including sampling rate, rotating speed and driven voltage laser diode (LDs) have also been investigated. Under optimal conditions, the performance of the detection system was evaluated. This novel system had a well-designed structure, and allowed independent multiple capillary operations and easy microanalysis. Its limit of detection for rhodamine 6G was 2.0 × 10-2 µg/mL.
Collapse
|
15
|
Devlin A, Mycroft-West C, Procter P, Cooper L, Guimond S, Lima M, Yates E, Skidmore M. Tools for the Quality Control of Pharmaceutical Heparin. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E636. [PMID: 31557911 PMCID: PMC6843833 DOI: 10.3390/medicina55100636] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 09/02/2019] [Accepted: 09/04/2019] [Indexed: 11/25/2022]
Abstract
Heparin is a vital pharmaceutical anticoagulant drug and remains one of the few naturally sourced pharmaceutical agents used clinically. Heparin possesses a structural order with up to four levels of complexity. These levels are subject to change based on the animal or even tissue sources that they are extracted from, while higher levels are believed to be entirely dynamic and a product of their surrounding environments, including bound proteins and associated cations. In 2008, heparin sources were subject to a major contamination with a deadly compound-an over-sulphated chondroitin sulphate polysaccharide-that resulted in excess of 100 deaths within North America alone. In consideration of this, an arsenal of methods to screen for heparin contamination have been applied, based primarily on the detection of over-sulphated chondroitin sulphate. The targeted nature of these screening methods, for this specific contaminant, may leave contamination by other entities poorly protected against, but novel approaches, including library-based chemometric analysis in concert with a variety of spectroscopic methods, could be of great importance in combating future, potential threats.
Collapse
Affiliation(s)
- Anthony Devlin
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
| | - Courtney Mycroft-West
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
| | - Patricia Procter
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
| | - Lynsay Cooper
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
| | - Scott Guimond
- Institute for Science and Technology in Medicine, Keele University, Keele, Staffordshire ST5 5BG, UK.
- School of Biological Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK.
| | - Marcelo Lima
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
| | - Edwin Yates
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
- School of Biological Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK.
| | - Mark Skidmore
- Molecular & Structural Biosciences, School of Life Sciences, Keele University, Huxley Building, Keele, Staffordshire ST5 5BG, UK.
- Institute for Science and Technology in Medicine, Keele University, Keele, Staffordshire ST5 5BG, UK.
- School of Biological Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK.
| |
Collapse
|
16
|
YAMAMOTO S, HAYASHI Y, MATSUNAGA H, OKADA F, KINOSHITA M, SUZUKI S. Analysis of 2-Aminobenzoic Acid-Labeled Monosaccharides and Glycoprotein-Derived Oligosaccharides by Online Cleanup Liquid Chromatography in the Reversed-Phase and Hydrophilic Interaction Liquid Chromatography Modes. CHROMATOGRAPHY 2019. [DOI: 10.15583/jpchrom.2019.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Yuki HAYASHI
- Faculty of Pharmaceutical Sciences, Kindai University
| | | | - Fuka OKADA
- Faculty of Pharmaceutical Sciences, Kindai University
| | | | - Shigeo SUZUKI
- Faculty of Pharmaceutical Sciences, Kindai University
| |
Collapse
|
17
|
Abstract
A novel disposable electrochemical biosensor based on immobilized calf thymus double-stranded DNA (dsDNA) on the carbon-based screen-printed electrode (SPE) is developed for rapid biorecognition of carrageenan by using methylene blue (MB) redox indicator. The biosensor protocol for the detection of carrageenan is based on the concept of competitive binding of positively charged MB to the negatively charged dsDNA and carrageenan. The decrement in the MB cathodic peak current (ipc) signal as a result of the released MB from the immobilized dsDNA, and attracted to the carrageenan can be monitored via differential pulse voltammetry (DPV). The biosensor showed high sensitivity and selectivity to carrageenan at low concentration without interference from other polyanions such as alginate, gum arabic and starch. Calibration of the biosensor with carrageenan exhibited an excellent linear dependence from 1–10 mg L−1 (R2 = 0.98) with a detection limit of 0.08 mg L−1. The DNA-based carrageenan biosensor showed satisfactory reproducibility with 5.6–6.9% (n = 3) relative standard deviations (RSD), and possessing several advantages such as simplicity, fast and direct application to real sample analysis without any prior extensive sample treatments, particularly for seaweeds and food analyses.
Collapse
|
18
|
Duarte-Junior GF, Lobo-Júnior EO, Medeiros Junior Í, da Silva JAF, do Lago CL, Coltro WKT. Separation of carbohydrates on electrophoresis microchips with controlled electrolysis. Electrophoresis 2019; 40:693-698. [DOI: 10.1002/elps.201800354] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 01/05/2023]
Affiliation(s)
| | | | - Íris Medeiros Junior
- Petróleo Brasileiro S.A.; Centro de Pesquisas e Desenvolvimento Leopoldo Américo Miguez de Mello (CENPES); Rio de Janeiro/RJ Brasil
| | | | | | | |
Collapse
|
19
|
Wang CC, Wang YS. Effective analysis of degree of polymerization of polysialic acids in mass spectrometry by combining novel sample preparation and dynamic instrument optimization methods. Carbohydr Res 2019; 471:78-84. [PMID: 30508659 DOI: 10.1016/j.carres.2018.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/11/2018] [Accepted: 11/11/2018] [Indexed: 01/25/2023]
Abstract
This work demonstrates a mass spectrometry technique to improve data reliability when analyzing degree of polymerization (DP) of high-mass polysialic acids (PSAs). Matrix-assisted laser-desorption/ionization (MALDI) time-of-flight mass spectrometry is the technique of choice for analyzing large molecules due to its wide mass working range; however, the observed DP of PSAs using such an instrument is unreliable owing to sensitivity bias towards low-mass ions. A multi-layer MALDI sample preparation protocol is demonstrated in the current study to improve PSA sensitivity, and a dynamic instrument optimization method (DIOM) is employed to minimize detector saturation over a wide mass range. The DP information obtained in the DIOM combines a series of mass spectral data obtained with individually optimized instrument parameters to minimize the problem of sensitivity bias in respective mass ranges. The resultant mass spectra facilitate unambiguous determination of DP in the high-mass range due to significantly improved spectral quality. The main instrument parameters involved in the optimization process include extraction delay in MALDI ion source as well as the cutoff mass of the ion detector. In comparison to conventional methods, the DIOM doubles the maximum DP that can be unambiguously identified by mass spectrometry.
Collapse
Affiliation(s)
- Chia-Chen Wang
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, 112, Taiwan, ROC; Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 115, Taiwan, ROC
| | - Yi-Sheng Wang
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, 112, Taiwan, ROC; Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 115, Taiwan, ROC.
| |
Collapse
|
20
|
Lyu Q, Zhang K, Zhu Q, Li Z, Liu Y, Fitzek E, Yohe T, Zhao L, Li W, Liu T, Yin Y, Liu W. Structural and biochemical characterization of a multidomain alginate lyase reveals a novel role of CBM32 in CAZymes. Biochim Biophys Acta Gen Subj 2018; 1862:1862-1869. [DOI: 10.1016/j.bbagen.2018.05.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/29/2018] [Accepted: 05/31/2018] [Indexed: 01/27/2023]
|
21
|
Ou YM, Kuo SY, Lee H, Chang HT, Wang YS. An Efficient Sample Preparation Method to Enhance Carbohydrate Ion Signals in Matrix-assisted Laser Desorption/Ionization Mass Spectrometry. J Vis Exp 2018. [PMID: 30102274 DOI: 10.3791/57660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Sample preparation is a critical process in mass spectrometry (MS) analysis of carbohydrates. Although matrix-assisted laser desorption/ionization (MALDI) MS is the method of choice in carbohydrate analysis, poor ion signal and data reproducibility of carbohydrate samples continue to be severe problems. For quantitative analysis of carbohydrates, an effective analytical protocol providing superior data quality is necessary. This video demonstrates sample preparation protocols to improve signal intensity and minimize data variation of carbohydrates in MALDI-MS. After drying and crystallization of sample droplets, the crystal morphology is reformed by methanol before mass spectrometric analysis. The enhancement in carbohydrate signal is examined with MALDI imaging mass spectrometry (IMS). Experimental results show that crystal reformation adjusts crystalline structures and redistributes carbohydrate analytes. In comparison with the dried droplet preparation method in conventional MALDI-MS, reforming carbohydrate crystal morphologies with methanol shows significantly better signal intensity, ion image distribution, and data stability. Since the protocols demonstrated herein do not involve changes in sample composition, they are generally applicable to various carbohydrates and matrixes.
Collapse
Affiliation(s)
- Yu-Meng Ou
- Genomic Research Center, Academia Sinica; Department of Chemistry, National Taiwan University
| | | | - Hsun Lee
- Genomic Research Center, Academia Sinica
| | | | | |
Collapse
|
22
|
Haas M, Lamour S, Trapp O. Development of an advanced derivatization protocol for the unambiguous identification of monosaccharides in complex mixtures by gas and liquid chromatography. J Chromatogr A 2018; 1568:160-167. [PMID: 30122163 DOI: 10.1016/j.chroma.2018.07.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/23/2018] [Accepted: 07/04/2018] [Indexed: 11/16/2022]
Abstract
The separation and analysis of complex monosaccharide mixtures is highly challenging and requires typically carefully selected derivatization procedures to avoid changes in the sample composition. Here we present in a comparative study several single- and two-step derivatization approaches for LC and GC separations using a set of reference compounds ranging from C1 building block such as formaldehyde to C6 monosaccharides. Separation conditions have been optimized resulting in the simultaneous separation of 15 unbranched aldoses. By parallel derivatization using hydroxylamine hydrochloride (HACl)/ N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) and O-ethylhydroxylamine hydrochloride (EtOx)/ N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) and comparative GC measurements we developed a protocol for the unambiguous identification and separation of aldoses, ketoses, alditols and aldonic acids, which commonly occur in complex sugar mixtures as reaction by-products or decomposition products. In particular this procedure helps to deconvolute overlapping analytes and facilitates quantification. Additionally, the method presented here has been investigated in regard to storage life, detection limits, quantification and MS analysis. The broad applicability of this method to different sample matrices is shown for the analysis of food samples and complex aldol reaction mixtures in the formose reaction, which is of great relevance in the context of the origin of life.
Collapse
Affiliation(s)
- Maren Haas
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany; Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
| | - Saskia Lamour
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany; Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
| | - Oliver Trapp
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany; Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany.
| |
Collapse
|
23
|
Wang W, Chen F, Wang Y, Wang L, Fu H, Zheng F, Beecher L. Optimization of reactions between reducing sugars and 1-phenyl-3-methyl-5-pyrazolone (PMP) by response surface methodology. Food Chem 2018; 254:158-164. [DOI: 10.1016/j.foodchem.2018.02.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/29/2018] [Accepted: 02/01/2018] [Indexed: 11/29/2022]
|
24
|
Determination of 5-Hydroxymethylfurfural and Saccharides in Mead. KVASNY PRUMYSL 2018. [DOI: 10.18832/kp201807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Martano C, Ferretti F, Ghiani S, Buonsanti F, Bruno E, Lattuada L, Medana C. Development and validation of a new HPLC–MS method for meglumine impurity profiling. J Pharm Biomed Anal 2018; 149:517-524. [DOI: 10.1016/j.jpba.2017.11.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 11/11/2017] [Accepted: 11/13/2017] [Indexed: 10/18/2022]
|
26
|
Huang Y, Tang G, Zhang T, Fillet M, Crommen J, Jiang Z. Supercritical fluid chromatography in traditional Chinese medicine analysis. J Pharm Biomed Anal 2018; 147:65-80. [DOI: 10.1016/j.jpba.2017.08.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 02/08/2023]
|
27
|
Lee H, Lai YH, Ou YM, Tsao CW, Jheng YJ, Kuo SY, Chang HT, Wang YS. Enhancing carbohydrate ion yield by controlling crystalline structures in matrix-assisted laser desorption/ionization mass spectrometry. Anal Chim Acta 2017; 994:49-55. [PMID: 29126468 DOI: 10.1016/j.aca.2017.09.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 10/18/2022]
Abstract
Carbohydrate analysis is challenging due to lack of sensitive detection and efficient separation methods. Although matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) is a sensitive tool, the low ionization efficiency of carbohydrates makes mass analyses inefficient. This work systematically examines the correlation between MALDI-MS sensitivity and carbohydrate sample morphology. Depending on the properties of the matrix used, the morphology changes through sample recrystallization after drying or imposition of hydrodynamic flows during droplet drying. Observation shows that amorphous solids and finer crystals offer higher carbohydrate sensitivity and spatial homogeneity than larger crystals. Clear evidences of an inverse correlation between sensitivity and crystal size are obtained when various kinds of carbohydrates are mixed with different matrixes. Similar experiments on proteins and peptides showed a negative or negligible effect. The result serves as a general guideline for improving efficiency in routine carbohydrate analysis.
Collapse
Affiliation(s)
- Hsun Lee
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Yin-Hung Lai
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Yu-Meng Ou
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC; Chemistry Department, National Taiwan University, Taipei 106, Taiwan, ROC
| | - Chien-Wei Tsao
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan, ROC
| | - Ya-Jin Jheng
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Shu-Yun Kuo
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC
| | - Huan-Tsung Chang
- Chemistry Department, National Taiwan University, Taipei 106, Taiwan, ROC
| | - Yi-Sheng Wang
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan, ROC.
| |
Collapse
|
28
|
Calvano CD, Cataldi TRI, Kögel JF, Monopoli A, Palmisano F, Sundermeyer J. Structural Characterization of Neutral Saccharides by Negative Ion MALDI Mass Spectrometry Using a Superbasic Proton Sponge as Deprotonating Matrix. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:1666-1675. [PMID: 28466430 DOI: 10.1007/s13361-017-1679-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/22/2017] [Accepted: 03/29/2017] [Indexed: 05/22/2023]
Abstract
The superbasic proton sponge 1,8-bis(tripyrrolidinylphosphazenyl)naphthalene (TPPN) has been successfully employed for the structural characterization of neutral saccharides, cyclodextrins, and saccharide alditols by matrix assisted laser desorption/ionization tandem mass spectrometry (MALDI-MS/MS). Owing to its inherently high basicity, TPPN is capable of deprotonating neutral carbohydrates (M) providing an efficient and simple way to produce gas-phase [M - H]- ions. Highly informative negative ions MS/MS spectra showing several diagnostic fragment ions were obtained, mainly A-type cross-ring and C-type glycosidic cleavages. Indeed, cross-ring cleavages of monosaccharides with formation of 0,2A, 0,3A, 2,4A, 2,5A, 3,5A, and 0,3X product ions dominate the MS/MS spectra. A significant difference between reducing (e.g., lactose, maltose) and non-reducing disaccharides (e.g., sucrose, trehalose) was observed. Though disaccharides with the anomeric positions blocked give rise to deprotonated molecules, [M - H]-, at m/z 341.1, reducing ones exhibited a peak at m/z 340.1, most likely as radical anion, [M - H•- H]-•. The superiority of TPPN was clearly demonstrated by comparison with well recognized matrices, such as 2,5-dihydroxybenzoic acid and 2',4',6'-trihydroxyacetophenone (positive ion mode) and nor-harman (negative ion mode). MALDI MS/MS experiments on isotopically labeled sugars have greatly supported the interpretation of plausible fragmentation pathways. Graphical Abstract ᅟ.
Collapse
Affiliation(s)
- Cosima Damiana Calvano
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy.
- Centro di Ricerca Interdipartimentale SMART, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy.
| | - Tommaso R I Cataldi
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy
- Centro di Ricerca Interdipartimentale SMART, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy
| | - Julius F Kögel
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032, Marburg, Germany
- FB Biologie/Chemie, Universität Bremen, Leobener Str. im NW2, 28359, Bremen, Germany
| | - Antonio Monopoli
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy
| | - Francesco Palmisano
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy
- Centro di Ricerca Interdipartimentale SMART, Università degli Studi di Bari Aldo Moro, via Orabona 4, 70126, Bari, Italy
| | - Jorge Sundermeyer
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032, Marburg, Germany
| |
Collapse
|
29
|
Xia L, Liu L, Qu F, Kong R, Li G, You J. Optimization of Release Conditions for Acetylated Amino Sugars from Glycoprotein with the Aid of Experimental Design and Their Sensitive Determination with HPLC. Chromatographia 2017. [DOI: 10.1007/s10337-017-3285-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
30
|
A method for the analysis of sugars in biological systems using reductive amination in combination with hydrophilic interaction chromatography and high resolution mass spectrometry. Talanta 2017; 166:75-80. [DOI: 10.1016/j.talanta.2017.01.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 01/08/2017] [Accepted: 01/12/2017] [Indexed: 12/16/2022]
|
31
|
Brüggemann M, Hayeck N, Bonnineau C, Pesce S, Alpert PA, Perrier S, Zuth C, Hoffmann T, Chen J, George C. Interfacial photochemistry of biogenic surfactants: a major source of abiotic volatile organic compounds. Faraday Discuss 2017; 200:59-74. [DOI: 10.1039/c7fd00022g] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Films of biogenic compounds exposed to the atmosphere are ubiquitously found on the surfaces of cloud droplets, aerosol particles, buildings, plants, soils and the ocean. These air/water interfaces host countless amphiphilic compounds concentrated there with respect to in bulk water, leading to a unique chemical environment. Here, photochemical processes at the air/water interface of biofilm-containing solutions were studied, demonstrating abiotic VOC production from authentic biogenic surfactants under ambient conditions. Using a combination of online-APCI-HRMS and PTR-ToF-MS, unsaturated and functionalized VOCs were identified and quantified, giving emission fluxes comparable to previous field and laboratory observations. Interestingly, VOC fluxes increased with the decay of microbial cells in the samples, indicating that cell lysis due to cell death was the main source for surfactants and VOC production. In particular, irradiation of samples containing solely biofilm cells without matrix components exhibited the strongest VOC production upon irradiation. In agreement with previous studies, LC-MS measurements of the liquid phase suggested the presence of fatty acids and known photosensitizers, possibly inducing the observed VOC productionviaperoxy radical chemistry. Up to now, such VOC emissions were directly accounted to high biological activity in surface waters. However, the results obtained suggest that abiotic photochemistry can lead to similar emissions into the atmosphere, especially in less biologically-active regions. Furthermore, chamber experiments suggest that oxidation (O3/OH radicals) of the photochemically-produced VOCs leads to aerosol formation and growth, possibly affecting atmospheric chemistry and climate-related processes, such as cloud formation or the Earth’s radiation budget.
Collapse
Affiliation(s)
| | - Nathalie Hayeck
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON
- Villeurbanne
| | - Chloé Bonnineau
- Irstea
- UR MALY
- Centre de Lyon-Villeurbanne
- F-69616 Villeurbanne
- France
| | - Stéphane Pesce
- Irstea
- UR MALY
- Centre de Lyon-Villeurbanne
- F-69616 Villeurbanne
- France
| | - Peter A. Alpert
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON
- Villeurbanne
| | | | - Christoph Zuth
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg-Universität
- 55128 Mainz
- Germany
| | - Thorsten Hoffmann
- Institute of Inorganic and Analytical Chemistry
- Johannes Gutenberg-Universität
- 55128 Mainz
- Germany
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Fudan Tyndall Centre
- Fudan University
- Shanghai 200433
- China
| | - Christian George
- Univ Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON
- Villeurbanne
| |
Collapse
|
32
|
Comparative analysis of INLIGHT™-labeled enzymatically depolymerized heparin by reverse-phase chromatography and high-performance mass spectrometry. Anal Bioanal Chem 2016; 409:499-509. [DOI: 10.1007/s00216-016-0055-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/16/2016] [Accepted: 10/24/2016] [Indexed: 12/19/2022]
|
33
|
Reversed-phase separation methods for glycan analysis. Anal Bioanal Chem 2016; 409:359-378. [PMID: 27888305 PMCID: PMC5203856 DOI: 10.1007/s00216-016-0073-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 10/26/2016] [Accepted: 10/31/2016] [Indexed: 12/21/2022]
Abstract
Reversed-phase chromatography is a method that is often used for glycan separation. For this, glycans are often derivatized with a hydrophobic tag to achieve retention on hydrophobic stationary phases. The separation and elution order of glycans in reversed-phase chromatography is highly dependent on the hydrophobicity of the tag and the contribution of the glycan itself to the retention. The contribution of the different monosaccharides to the retention strongly depends on the position and linkage, and isomer separation may be achieved. The influence of sialic acids and fucoses on the retention of glycans is still incompletely understood and deserves further study. Analysis of complex samples may come with incomplete separation of glycan species, thereby complicating reversed-phase chromatography with fluorescence or UV detection, whereas coupling with mass spectrometry detection allows the resolution of complex mixtures. Depending on the column properties, eluents, and run time, separation of isomeric and isobaric structures can be accomplished with reversed-phase chromatography. Alternatively, porous graphitized carbon chromatography and hydrophilic interaction liquid chromatography are also able to separate isomeric and isobaric structures, generally without the necessity of glycan labeling. Hydrophilic interaction liquid chromatography, porous graphitized carbon chromatography, and reversed-phase chromatography all serve different research purposes and thus can be used for different research questions. A great advantage of reversed-phase chromatography is its broad distribution as it is used in virtually every bioanalytical research laboratory, making it an attracting platform for glycan analysis. Glycan isomer separation by reversed phase liquid chromatography ![]()
Collapse
|
34
|
Purification, structural characterization and antiproliferative properties of chondroitin sulfate/dermatan sulfate from tunisian fish skins. Int J Biol Macromol 2016; 95:32-39. [PMID: 27840213 DOI: 10.1016/j.ijbiomac.2016.10.108] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/27/2016] [Accepted: 10/30/2016] [Indexed: 11/22/2022]
Abstract
Chondroitin sulfate/dermatan sulfate GAGs were extracted and purified from the skins of grey triggerfish (GTSG) and smooth hound (SHSG). The disaccharide composition produced by chondroitinase ABC treatment showed the presence of nonsulfated disaccharide, monosulfated disaccharides ΔDi6S and ΔDi4S, and disulfated disaccharides in different percentages. In particular, the nonsulfated disaccharide ΔDi0S of GTSG and SHSG were 3.5% and 5.5%, respectively, while monosulfated disaccharides ΔDi6S and ΔDi4S were evaluated to be 18.2%, 59% and 14.6%, 47.0%, respectively. Capillary elecrophoresis analysis of GTSG and SHSG contained 99.2% and 95.4% of chondroitin sulfate/dermatan sulfate, respectively. PAGE analysis showed a GTSG and SHSG having molecular masses with average values of 41.72KDa and 23.8KDa, respectively. HCT116 cell proliferation was inhibited (p<0.05) by 70.6% and 72.65% at 200μg/mL of GTSG and SHSG respectively. Both GTSG and SHSG demonstrated promising antiproliferative potential, which may be used as a novel, effective agent.
Collapse
|
35
|
Sydes D, Kler PA, Meyer H, Zipfl P, Lutz D, Huhn C. On-chip intermediate LED-IF-based detection for the control of electromigration in multichannel networks. Anal Bioanal Chem 2016; 408:8713-8725. [DOI: 10.1007/s00216-016-0033-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 10/08/2016] [Accepted: 10/13/2016] [Indexed: 11/30/2022]
|
36
|
Vojvodić A, Komes D, Vovk I, Belščak-Cvitanović A, Bušić A. Compositional evaluation of selected agro-industrial wastes as valuable sources for the recovery of complex carbohydrates. Food Res Int 2016; 89:565-573. [DOI: 10.1016/j.foodres.2016.07.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 07/22/2016] [Accepted: 07/28/2016] [Indexed: 11/25/2022]
|
37
|
Highly sensitive derivatization reagents possessing positively charged structures for the determination of oligosaccharides in glycoproteins by high-performance liquid chromatography electrospray ionization tandem mass spectrometry. J Chromatogr A 2016; 1465:79-89. [DOI: 10.1016/j.chroma.2016.08.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/10/2016] [Accepted: 08/18/2016] [Indexed: 11/16/2022]
|
38
|
Goetz S, Rejzek M, Nepogodiev SA, Field RA. The impact of aminopyrene trisulfonate (APTS) label in acceptor glycan substrates for profiling plant pectin β-galactosyltransferase activities. Carbohydr Res 2016; 433:97-105. [PMID: 27479753 PMCID: PMC5036537 DOI: 10.1016/j.carres.2016.07.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 07/14/2016] [Accepted: 07/16/2016] [Indexed: 12/23/2022]
Abstract
Aminopyrene trisulfonate (APTS)-labelled disaccharides are demonstrated to serve as readily accessible acceptor substrates for galactosyltransferase activities present in Arabidopsis microsome preparations. The reductive amination procedure used to install the fluorophore results in loss of the ring structure of the reducing terminal sugar unit, such that a single intact sugar ring is present, attached via an alditol tether to the aminopyrene fluorophore. The configuration of the alditol portion of the labelled acceptor, as well as the position of alditol galactosylation, substantially influence the ability of compounds to serve as Arabidopsis galactosyltransferase acceptor substrates. The APTS label exhibits an unexpected reaction-promoting effect that is not evident for structurally similar sulfonated aromatic fluorophores ANDS and ANTS. When APTS-labelled β-(1 → 4)-Gal3 was employed as an acceptor substrate with Arabidopsis microsomes, glycan extension generated β-(1 → 4)-galactan chains running to beyond 60 galactose residues. These studies demonstrate the potential of even very short glycan-APTS probes for assessing plant galactosyltransferase activities and the suitability CE-LIF for CAZyme profiling. APTS-labelled disaccharides serve as acceptor substrates for galactosyltransferases. Configuration of the alditol linker and site of glycosylation influence GalT turnover. APTS shows a reaction-promoting effect not evident for similar fluorophores. β-(1 → 4)-Gal3-APTS acceptor supports enzymatic extension to > 60 galactose residues Demonstrates the potential of glycan-APTS probes with CE-LIF for CAZyme profiling.
Collapse
Affiliation(s)
- Stephan Goetz
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Martin Rejzek
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Sergey A Nepogodiev
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Robert A Field
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK.
| |
Collapse
|
39
|
Yamamoto S, Kinoshita M, Suzuki S. Current landscape of protein glycosylation analysis and recent progress toward a novel paradigm of glycoscience research. J Pharm Biomed Anal 2016; 130:273-300. [PMID: 27461579 DOI: 10.1016/j.jpba.2016.07.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 07/09/2016] [Accepted: 07/09/2016] [Indexed: 12/25/2022]
Abstract
This review covers the basics and some applications of methodologies for the analysis of glycoprotein glycans. Analytical techniques used for glycoprotein glycans, including liquid chromatography (LC), capillary electrophoresis (CE), mass spectrometry (MS), and high-throughput analytical methods based on microfluidics, were described to supply the essentials about biopharmaceutical and biomarker glycoproteins. We will also describe the MS analysis of glycoproteins and glycopeptides as well as the chemical and enzymatic releasing methods of glycans from glycoproteins and the chemical reactions used for the derivatization of glycans. We hope the techniques have accommodated most of the requests from glycoproteomics researchers.
Collapse
Affiliation(s)
- Sachio Yamamoto
- Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka, 577-8502, Japan.
| | - Mitsuhiro Kinoshita
- Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
| | - Shigeo Suzuki
- Faculty of Pharmaceutical Sciences, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka, 577-8502, Japan
| |
Collapse
|
40
|
Qin Q, Wang B, Chang M, Zhou Z, Shi X, Xu G. Highly efficient solid-phase derivatization of sugar phosphates with titanium-immobilized hydrophilic polydopamine-coated silica. J Chromatogr A 2016; 1457:125-33. [PMID: 27371021 DOI: 10.1016/j.chroma.2016.06.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/11/2016] [Accepted: 06/15/2016] [Indexed: 10/21/2022]
Abstract
Sugar phosphates are a type of key metabolic intermediates of glycolysis, gluconeogenesis and pentose phosphate pathway, which can regulate tumor energetic metabolism. Due to their low endogenous concentrations, poor chromatographic retention properties as well as ionization suppression from complex matrix interference, the determination of sugar phosphates in biological samples is very difficult. In this study, titanium-immobilized hydrophilic polydopamine-coated silica microspheres (SiO2@PD-Ti(4+)) were synthesized for highly efficient solid-phase derivatization of sugar phosphates. Sugar phosphates were selectively captured onto the surface of the SiO2@PD-Ti(4+) microspheres by chelating with phosphate groups, and then reacted with 3-amino-9-ethylcarbazole via reductive amination based on solid-phase derivatization, which could not only increase the retention and resolution of sugar phosphates on reversed-phase liquid chromatography (RPLC), but also improve the mass spectrometry (MS) sensitivity of sugar phosphates. The adsorption capacity of SiO2@PD-Ti(4+) microspheres towards glucose-6-phosphate is 0.76mg/g, which is much larger than that of commercial TiO2. Compared with the traditional liquid-phase derivatization, the solid-phase derivatization based on the SiO2@PD-Ti(4+) microspheres displayed several superiorities including shorter derivatization time (within 10min), higher product purity and much lower limit of detection (up to 38pmol/L). In addition, good linearity (R(2)≥0.99), excellent recovery (80.6-118%) and high precision (RSDs with 2.8-7.8%) were obtained when the developed method was used for quantitative analysis of sugar phosphates. Finally, the SiO2@PD-Ti(4+) microspheres combined with RPLC-MS were successfully applied to the determination of sugar phosphates from hepatocarcinoma cell lines and could even detect the trace sugar phosphates in thousands of cells.
Collapse
Affiliation(s)
- Qian Qin
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bohong Wang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengmeng Chang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihui Zhou
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianzhe Shi
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Guowang Xu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| |
Collapse
|
41
|
Ozdemir A, Lin JL, Gillig KJ, Gulfen M, Chen CH. Analysis of Saccharides by the Addition of Amino Acids. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:1113-1121. [PMID: 26951558 DOI: 10.1007/s13361-016-1370-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/15/2016] [Accepted: 02/18/2016] [Indexed: 06/05/2023]
Abstract
In this work, we present the detection sensitivity improvement of electrospray ionization (ESI) mass spectrometry of neutral saccharides in a positive ion mode by the addition of various amino acids. Saccharides of a broad molecular weight range were chosen as the model compounds in the present study. Saccharides provide strong noncovalent interactions with amino acids, and the complex formation enhances the signal intensity and simplifies the mass spectra of saccharides. Polysaccharides provide a polymer-like ESI spectrum with a basic subunit difference between multiply charged chains. The protonated spectra of saccharides are not well identified because of different charge state distributions produced by the same molecules. Depending on the solvent used and other ions or molecules present in the solution, noncovalent interactions with saccharides may occur. These interactions are affected by the addition of amino acids. Amino acids with polar side groups show a strong tendency to interact with saccharides. In particular, serine shows a high tendency to interact with saccharides and significantly improves the detection sensitivity of saccharide compounds. Graphical Abstract ᅟ.
Collapse
Affiliation(s)
- Abdil Ozdemir
- Department of Chemistry, Faculty of Arts and Sciences, Sakarya University, 54187, Esentepe, Sakarya, Turkey
| | - Jung-Lee Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Kent J Gillig
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Mustafa Gulfen
- Department of Chemistry, Faculty of Arts and Sciences, Sakarya University, 54187, Esentepe, Sakarya, Turkey
| | | |
Collapse
|
42
|
Quantification of Lactulose and Epilactose in the Presence of Lactose in Milk using a dual HPLC analysis. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0405-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
43
|
Toppazzini M, Coslovi A, Rossi M, Flamigni A, Baiutti E, Campa C. Capillary Electrophoresis of Mono- and Oligosaccharides. Methods Mol Biol 2016; 1483:301-338. [PMID: 27645743 DOI: 10.1007/978-1-4939-6403-1_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This chapter reports an overview of the recent advances in the analysis of mono- and oligosaccharides by capillary electrophoresis (CE); furthermore, relevant reviews and research articles recently published in the field are tabulated. Additionally, pretreatments and procedures applied to uncharged and acidic carbohydrates (i.e., monosaccharides and lower oligosaccharides carrying carboxylate, sulfate, or phosphate groups) are described.Representative examples of such procedures are reported in detail, upon describing robust methodologies for the study of (1) neutral oligosaccharides derivatized by reductive amination and by formation of glycosylamines; (2) sialic acid derivatized with 2-aminoacridone, released from human serum immunoglobulin G; (3) anomeric couples of neutral glycosides separated using borate-based buffers; (4) unsaturated, underivatized oligosaccharides from lyase-treated alginate.
Collapse
Affiliation(s)
- Mila Toppazzini
- GSK Vaccines, Manufacturing Science & Technology Bellaria di Rosia, Sovicille (Siena), Italy
| | - Anna Coslovi
- GSK Vaccines, Manufacturing Science & Technology Bellaria di Rosia, Sovicille (Siena), Italy
| | - Marco Rossi
- Bracco Imaging SpA-CRB Trieste, AREA Science Park, Trieste, Italy
| | - Anna Flamigni
- Bracco Imaging SpA-CRB Trieste, AREA Science Park, Trieste, Italy
| | - Edi Baiutti
- Bracco Imaging SpA-CRB Trieste, AREA Science Park, Trieste, Italy
| | - Cristiana Campa
- GSK Vaccines, Manufacturing Science & Technology Bellaria di Rosia, Sovicille (Siena), Italy.
| |
Collapse
|
44
|
A sensitive and efficient method for determination of N-acetylhexosamines and N-acetylneuraminic acid in breast milk and milk-based products by high-performance liquid chromatography via UV detection and mass spectrometry identification. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1011:14-23. [PMID: 26751589 DOI: 10.1016/j.jchromb.2015.12.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 11/18/2015] [Accepted: 12/17/2015] [Indexed: 01/15/2023]
Abstract
A sensitive and efficient method of high performance liquid chromatography using 1-(2-naphthyl)-3-methyl-5-pyrazolone (NMP) as pre-column derivatization reagent coupled with UV detection (HPLC-UV) and online mass spectrometry identification was established for determination of the most common N-Acetylhexosamines (N-acetyl-d-glucosamine (GlcNAc) and N-acetyl-d-galactosamine (GalNAc)) and N-acetylneuraminic acid (Neu5Ac). In order to obtain the highest liberation level of the three monosaccharides without destruction of Neu5Ac or conversion of GlcNAc/GalNAc to GlcN/GalN in the hydrolysis procedure, the pivotal parameters affecting the liberation of N-acetylhexosamines/Neu5Ac from sample were investigated with response surface methodology (RSM). Under the optimized condition, maximum yield was obtained. The effects of key parameters on derivatization, separation and detection were also investigated. At optimized conditions, three monosaccharides were labeled fast and entirely, and all derivatives exhibited a good baseline resolution and high detection sensitivity. The developed method was linear over the calibration range 0.25-12μM, with R(2)>0.9991. The detection limits of the method were between 0.48 and 2.01pmol. Intra- and inter-day precisions for the three monosaccharides (GlcNAc, GalNAc and Neu5Ac) were found to be in the range of 3.07-4.02% and 3.69-4.67%, respectively. Individual monosaccharide recovery from spiked milk was in the range of 81%-97%. The sensitivity of the method, the facility of the derivatization procedure and the reliability of the hydrolysis conditions suggest the proposed method has a high potential for utilization in routine trace N-acetylhexosamines and Neu5Ac analysis in biological samples.
Collapse
|
45
|
Ultrasensitive electrochemical biosensor based on reduced graphene oxide-tetraethylene pentamine-BMIMPF6 hybrids for the detection of α2,6-sialylated glycans in human serum. Biosens Bioelectron 2015; 74:953-9. [DOI: 10.1016/j.bios.2015.07.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 07/26/2015] [Accepted: 07/30/2015] [Indexed: 01/24/2023]
|
46
|
Yang S, Rubin A, Eshghi ST, Zhang H. Chemoenzymatic method for glycomics: Isolation, identification, and quantitation. Proteomics 2015; 16:241-56. [PMID: 26390280 DOI: 10.1002/pmic.201500266] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/15/2015] [Accepted: 09/15/2015] [Indexed: 01/03/2023]
Abstract
Over the past decade, considerable progress has been made with respect to the analytical methods for analysis of glycans from biological sources. Regardless of the specific methods that are used, glycan analysis includes isolation, identification, and quantitation. Derivatization is indispensable to increase their identification. Derivatization of glycans can be performed by permethylation or carbodiimide coupling/esterification. By introducing a fluorophore or chromophore at their reducing end, glycans can be separated by electrophoresis or chromatography. The fluorogenically labeled glycans can be quantitated using fluorescent detection. The recently developed approaches using solid-phase such as glycoprotein immobilization for glycan extraction and on-tissue glycan mass spectrometry imaging demonstrate advantages over methods performed in solution. Derivatization of sialic acids is favorably implemented on the solid support using carbodiimide coupling, and the released glycans can be further modified at the reducing end or permethylated for quantitative analysis. In this review, methods for glycan isolation, identification, and quantitation are discussed.
Collapse
Affiliation(s)
- Shuang Yang
- Department of Pathology, Johns Hopkins University, Baltimore, USA
| | - Abigail Rubin
- Department of Pathology, Johns Hopkins University, Baltimore, USA
| | | | - Hui Zhang
- Department of Pathology, Johns Hopkins University, Baltimore, USA
| |
Collapse
|
47
|
Orthogonal Technologies for NISTmAb N-Glycan Structure Elucidation and Quantitation. ACTA ACUST UNITED AC 2015. [DOI: 10.1021/bk-2015-1201.ch004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
|
48
|
Water revealed as molecular mirror when measuring low concentrations of sugar with near infrared light. Anal Chim Acta 2015; 896:52-62. [DOI: 10.1016/j.aca.2015.09.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/25/2015] [Accepted: 09/06/2015] [Indexed: 11/16/2022]
|
49
|
A Simple Analytical Method for High-Throughput Screening of Major Sugars from Soybean by Normal-Phase HPLC with Evaporative Light Scattering Detection. ACTA ACUST UNITED AC 2015. [DOI: 10.1155/2015/757649] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This paper presents a simple analytical method for determining sugars in soybean (Glycine max (L.) Merr.) tissues. Sample preparation was modified from several early published methods. High-performance liquid chromatography (HPLC) equipped with an evaporative light scattering detector (ELSD) was used to separate, identify, and quantify seven sugars, including glucose, galactose, fructose, sucrose, melibiose, raffinose, and stachyose. Two mobile phases were programed into a gradient elution. Mobile phase A is pure water and mobile phase B is a mixture of acetonitrile and acetone 75 : 25 (v/v). Total chromatographic retention time is less than 20 minutes. This method has been validated for detection limit, calibration range, and intraday and interday repeatability. This method has been used analyzing more than 5000 soybean samples in the experiments studying natural genetic variation of sugar contents and components in soybean seeds and other tissues.
Collapse
|
50
|
Shou M, Terashima H, Aizawa SI, Taga A, Yamamoto A, Kodama S. Simultaneous Enantioseparation of Aldohexoses and Aldopentoses Derivatized With L-Tryptophanamide by Reversed Phase HPLC Using Butylboronic Acid as a Complexation Reagent of Monosaccharides. Chirality 2015; 27:417-21. [PMID: 25994510 DOI: 10.1002/chir.22456] [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: 03/12/2015] [Revised: 03/30/2015] [Accepted: 04/03/2015] [Indexed: 12/24/2022]
Abstract
Three aldohexoses, glucose, galactose, and mannose, and three aldopentoses, arabinose, xylose, and ribose, were derivatized with L-tryptophanamide (L-TrpNH2 ) under alkaline conditions. Using a basic mobile phase (pH 9.2), the three aldohexoses or the three aldopentoses were simultaneously enantioseparated, respectively, but all the six monosaccharides could not be simultaneously enantioseparated. A large amount of nonreacted L-TrpNH2 was detected after the derivatized monosaccharides. In order to widen the separation window, a large portion of nonreacted L-TrpNH2 could be eliminated by liquid-liquid extraction with ethylacetate, and elution order of the derivatized monosaccharides and nonreacted L-TrpNH2 was found to be reversed using a neutral mobile phase. All of the six monosaccharides were simultaneously enantioseparated by reversed phase high-performance liquid chromatography (HPLC) using InertSustainSwift C18 column (4.6 mm i.d. × 150 mm) and a mobile phase containing 180 mM phosphate buffer (pH 7.6), 1.5 mM butylboronic acid, and 5% acetonitrile at 40 °C. Nomenclature of D and L for monosaccharides is based on the configurations of the asymmetric C4 center for aldopentoses and C5 center for aldohexoses. It was found that the enantiomer elution order of these six monosaccharides and fucose in the proposed method conformed to be the absolute configuration of the C2 center.
Collapse
Affiliation(s)
- Mirei Shou
- School of Science, Tokai University, Kanagawa, Japan
| | | | - Sen-Ichi Aizawa
- Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
| | - Atsushi Taga
- Faculty of Pharmacy, Kinki University, Higashi-Osaka, Japan
| | - Atsushi Yamamoto
- Department of Biological Chemistry, College of Bioscience and Biotechnology, Chubu University, Aichi, Japan
| | - Shuji Kodama
- School of Science, Tokai University, Kanagawa, Japan
| |
Collapse
|