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Yue YN, Chai ZL, Zhang HW, Dong WK. A novel chemical probe based on the salamo-Co(II) complex for the highly selective fluorescence detection of tyrosine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 324:124956. [PMID: 39151398 DOI: 10.1016/j.saa.2024.124956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 07/28/2024] [Accepted: 08/09/2024] [Indexed: 08/19/2024]
Abstract
A new and rare Salamo-Co(II) complex probe L-Co2+ was designed and synthesised. The structure of the [Co3(L)2(μ-OAc)2(MeOH)2]⋅2H2O complex was obtained by X-ray diffraction experiments. Three Co(II) atoms are in a line in the complex, and all Co(II) atoms form a 6-coordinated octahedral configuration. The probe L-Co2+ selectively recognises tyrosine in DMF/H2O (8:2, v/v). Upon addition of tyrosine, the fluorescence intensity of L-Co2+ was enhanced in a short time. The probe showed high selectivity and sensitivity for tyrosine, detection limit is 4.27 × 10-8 M. The recognition mechanism of probe L-Co2+ for Tyr was inferred by FT-IR spectra, UV spectroscopy, ESI mass spectra and DFT calculations. Finally, due to the simplicity and specificity of the identification process, the probe was also subjected to a test paper experiment and a milk assay.
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Affiliation(s)
- Yong-Ning Yue
- College of Petroleum and Chemical Engineering, Longdong University, Qingyang, Gansu 745000, PR China.
| | - Zhi-Lei Chai
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, PR China
| | - Hai-Wei Zhang
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, PR China
| | - Wen-Kui Dong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, PR China.
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Darmawan YA, Goto T, Yanagishima T, Fuji T, Kudo T. Mid-Infrared Optical Force Chromatography of Microspheres Containing Siloxane Bonds. J Phys Chem Lett 2023; 14:7306-7312. [PMID: 37561048 DOI: 10.1021/acs.jpclett.3c01679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Recent interest in particle sorting using optical forces has grown due to its ability to separate micro- and nanomaterials based on their optical properties. Here, we present a mid-infrared optical force manipulation technique that enables precise sorting of microspheres based on their molecular vibrational properties using a mid-infrared quantum cascade laser. Utilizing the optical pushing force driven by a 9.3 μm mid-infrared evanescent field generated on a prism through total internal reflection, a variety of microspheres, including those composed of Si-O-Si bonds, can be separated in accordance with their absorbance values at 9.3 μm. The experimental results are in good agreement with the optical force calculations using finite-difference time-domain simulation. Thus, each microsphere's displacement and velocity can be predicted from the absorbance value; conversely, the optical properties (e.g., absorbance and complex refractive index in the mid-infrared region) of individual microspheres can be estimated by monitoring their velocity.
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Affiliation(s)
- Yoshua Albert Darmawan
- Laser Science Laboratory, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan
| | - Takuma Goto
- Laser Science Laboratory, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan
| | - Taiki Yanagishima
- Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Takao Fuji
- Laser Science Laboratory, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan
| | - Tetsuhiro Kudo
- Laser Science Laboratory, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan
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Zhang H, Wang J, Wang C. Multi-target bioactive compound screening from the infructescence of Platycarya strobilacea Sieb. et Zucc. by affinity chromatography using immobilized β 2 -adrenoceptor and muscarinic-3 acetylcholine receptor as the stationary phase. J Sep Sci 2023; 46:e2300129. [PMID: 37339788 DOI: 10.1002/jssc.202300129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/22/2023]
Abstract
As a main source for the recognition and identification of lead compounds, traditional Chinese medicine plays a pivotal role in preventing diseases for years. However, screening bioactive compounds from traditional Chinese medicine remains challenging because of the complexity of the systems and the occurrence of the synergic effect of the compounds. The infructescence of Platycarya strobilacea Sieb. et Zucc is prescribed for allergic rhinitis treatment with unknown bioactive compounds and unclear mechanisms. Herein, we immobilized the β2 -adrenoceptor and muscarine-3 acetylcholine receptor onto the silica gel surface to prepare the stationary phase in a covalent bond through one step. The feasibility of the columns was investigated by the chromatographic method. Ellagic acid and catechin were identified as the bioactive compounds targeting the receptors. The binding constants of ellagic acid were calculated to be (1.56 ± 0.23)×107 M-1 for muscarine-3 acetylcholine receptor and (2.93 ± 0.15)×107 M-1 for β2 -adrenoceptor by frontal analysis. While catechin can bind with muscarine-3 acetylcholine receptor with an affinity of (3.21 ± 0.05)×105 M-1 . Hydrogen bonds and van der Waals' force were the main driving forces for the two compounds with the receptors. The established method provides an alternative for multi-target bioactive compound screening in complex matrices.
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Affiliation(s)
- HaoSen Zhang
- Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Key Laboratory, College of Chemistry and Materials Science, Northwest University, Xi'an, China
| | - Jing Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, College of Life Sciences, Northwest University, Xi'an, China
| | - Chaozhan Wang
- Synthetic and Natural Functional Molecule Chemistry of Ministry of Education Key Laboratory, College of Chemistry and Materials Science, Northwest University, Xi'an, China
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Oinam L, Hayashi R, Hiemori K, Kiyoi K, Sage-Ono K, Miura K, Ono M, Tateno H. Quantitative evaluation of glycan-binding specificity of recombinant concanavalin A produced in lettuce (Lactuca sativa). Biotechnol Bioeng 2022; 119:1781-1791. [PMID: 35394653 DOI: 10.1002/bit.28099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/25/2022] [Accepted: 03/31/2022] [Indexed: 11/10/2022]
Abstract
Concanavalin A (ConA), a mannose (Man)-specific leguminous lectin isolated from the jack bean (Canavalia ensiformis) seed extracts, was discovered over a century ago. Although ConA has been extensively applied in various life science research, recombinant mature ConA expression has not been fully established. Here, we aimed to produce recombinant ConA (rConA) in lettuce (Lactuca sativa) using an Agrobacterium tumefaciens-mediated transient expression system. rConA could be produced as a fully active form from soluble fractions of lettuce leaves and purified by affinity chromatography. From 12 g wet weight of lettuce leaves, 0.9 mg rConA could be purified. The glycan-binding properties of rConA were then compared with that of the native ConA isolated from jack bean using glycoconjugate microarray and frontal affinity chromatography. rConA demonstrated a glycan-binding specificity similar to nConA. Both molecules bound to N-glycans containing a terminal Man residue. Consistent with previous reports, terminal Manα1-6Man was found to be an essential unit for the high-affinity binding of rConA and nConA, while bisecting GlcNAc diminished the binding of rConA and nConA to Manα1-6Man-terminated N-glycans. These results demonstrate that the fully active rConA could be produced using the A. tumefaciens-mediated transient expression system and used as a recombinant substitute for nConA.
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Affiliation(s)
- Lalhaba Oinam
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
| | - Ryoma Hayashi
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Keiko Hiemori
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
| | - Kayo Kiyoi
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
| | - Kimiyo Sage-Ono
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kenji Miura
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Michiyuki Ono
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hiroaki Tateno
- Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan
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Wang L, Zhang W, Shao Y, Zhang D, Guo G, Wang X. Analytical methods for obtaining binding parameters of drug–protein interactions: A review. Anal Chim Acta 2022; 1219:340012. [DOI: 10.1016/j.aca.2022.340012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 11/30/2022]
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Guo R, Chen M, Ding Y, Yang P, Wang M, Zhang H, He Y, Ma H. Polysaccharides as Potential Anti-tumor Biomacromolecules —A Review. Front Nutr 2022; 9:838179. [PMID: 35295918 PMCID: PMC8919066 DOI: 10.3389/fnut.2022.838179] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/27/2022] [Indexed: 12/24/2022] Open
Abstract
Cancer, as one of the most life-threatening diseases, has attracted the attention of researchers to develop drugs with minimal side effects. The bioactive macromolecules, such as the polysaccharides, are considered the potential candidates against cancer due to their anti-tumor activities and non-toxic characteristics. The present review provides an overview on polysaccharides' extraction, isolation, purification, mechanisms for their anti-tumor activities, structure-activity relationships, absorption and metabolism of polysaccharides, and the applications of polysaccharides in anti-tumor therapy. Numerous research showed extraction methods of polysaccharides had a significant influence on their activities. Additionally, the anti-tumor activities of the polysaccharides are closely related to their structure, while molecular modification and high bioavailability may enhance the anti-tumor activity. Moreover, most of the polysaccharides exerted an anti-tumor activity mainly through the cell cycle arrest, anti-angiogenesis, apoptosis, and immunomodulation mechanisms. Also, recommendations were made to utilize the polysaccharides against cancer.
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Affiliation(s)
- Rui Guo
- College of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Min Chen
- The Laboratory Animal Research Center, Jiangsu University, Zhenjiang, China
| | - Yangyang Ding
- The Laboratory Animal Research Center, Jiangsu University, Zhenjiang, China
| | - Pengyao Yang
- College of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Mengjiao Wang
- College of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Haihui Zhang
- College of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Yuanqing He
- College of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, China
- The Laboratory Animal Research Center, Jiangsu University, Zhenjiang, China
- *Correspondence: Yuanqing He
| | - Haile Ma
- College of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, China
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Hu D, Hirabayashi J. Transformation of Agrocybe cylindracea Galectin into αGalNAc-Specific Lectin. Methods Mol Biol 2022; 2442:233-245. [PMID: 35320530 DOI: 10.1007/978-1-0716-2055-7_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A multi-specific fungal galectin from the mushroom Agrocybe cylindracea (ACG) binds a broad range of β-galactosides, as well as their derivative GalNAcα1-3Gal. Site-directed mutagenesis of the hydrophilic residues His, Asn, Arg, and Glu, involved in carbohydrate recognition, abolished the binding affinity of the derived mutants to β-galactosides, whereas only N46A caused increased affinity to GalNAcα1-3Gal-containing oligosaccharides and loss of β-galactoside-binding activity. Detailed structural analysis revealed that Pro45, the preceding residue of Asn46 of the wild-type ACG, takes the cis imide conformation to tether Asn46 onto a loop region to make new hydrogen bonds with β-galactosides and to compensate for the lack of evolutionarily conserved Asn. In contrast, in the N46A mutant, Pro45 takes the more stable trans conformation, resulting in "switched" specificity to αGalNAc. Such an altered recognition system in the binding specificity of galectins can be observed in other lectin molecules not only in nature but will also be observed in those engineered in the future.
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Affiliation(s)
- Dan Hu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, People's Republic of China
| | - Jun Hirabayashi
- National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan.
- Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan.
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Gottardini A, Netter C, Dugas V, Demesmay C. Two Original Experimental Setups for Staircase Frontal Affinity Chromatography at the Miniaturized Scale. Anal Chem 2021; 93:16981-16986. [PMID: 34907771 DOI: 10.1021/acs.analchem.1c04772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Frontal affinity chromatography is a powerful, underappreciated technique for the qualitative (screening) and quantitative (Kd determination) evaluation of biological interactions. Its development has been previously hampered by its sample consumption, limited throughput, and lack of dedicated instrumentation especially at a miniaturized scale. This work describes two original experimental devices allowing nano-frontal affinity chromatography titrations (nano-FAC) to be automatically implemented in the time-saving staircase mode. The first nano-FAC system utilizes a capillary electrophoresis device (7100 CE Agilent system) in the pressurization mode with in situ UV detection. The second nano-FAC experimental setup implements a nano-LC device (Ultimate 3000 Thermo) modified with a 10-port valve equipped with two superloops (loop volume, 5 μL) operating alternatively and automatically in a single run. The benefits and drawbacks of each approach are exemplified using two model protein-ligand interactions (concanavalin A-mannose and concanavalin A-glucose). The two methods result in concordant dissociation constants (Kd) and number of active site (Bact) values, obtained in a fully automated manner, with low sample consumption and good throughput.
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Affiliation(s)
- Andrea Gottardini
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 Rue de la Doua, F-69100 Villeurbanne, France
| | - Claude Netter
- Thermo Fisher Scientific, 16 Avenue du Québec, BP 30210, Villebon sur Yvette FR-91941, Courtabœuf Cedex, France
| | - Vincent Dugas
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 Rue de la Doua, F-69100 Villeurbanne, France
| | - Claire Demesmay
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 Rue de la Doua, F-69100 Villeurbanne, France
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BAI Y, FAN Y, GE G, WANG F. [Advances in chromatography in the study of drug-plasma protein interactions]. Se Pu 2021; 39:1077-1085. [PMID: 34505429 PMCID: PMC9404221 DOI: 10.3724/sp.j.1123.2021.06028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Indexed: 11/25/2022] Open
Abstract
After entering human blood circulation, small-molecule drugs interact extensively with various plasma proteins, such as human serum albumin and α1-acid glycoprotein. These interactions profoundly affect the distribution of drugs in vivo and the binding of drugs to targets, thus affecting the efficacy of drugs. In-depth investigation of drug-plasma protein interactions is of great significance for the optimization of drug properties, the development of new drugs, risk assessment, and combination therapy of drugs. Therefore, it is essential to develop highly efficient, sensitive, and accurate methods for elucidating drug-plasma protein interactions. Chromatography is a powerful tool with high throughput, high separation performance, and high sensitivity in the characterization of drug-protein interactions. High-performance affinity chromatography (HPAC) and capillary electrophoresis (CE) have been widely utilized in this field. These methods include the determination of the effects of the posttranslational modification of proteins on binding and the competitive binding of multiple drugs. In addition, various chromatographic methods are used to obtain interaction information such as the binding constant, binding-site number, and dissociation rate constant. In this review, the common strategies and recent advances in HPAC and CE in the study of drug-plasma protein interactions are briefly reviewed. The immobilization methods of proteins, the principles and applications of frontal analysis, zonal elution, ultrafast affinity extraction, peak profiling, and peak decay analysis are discussed for HPAC and affinity capillary electrophoresis (ACE) and capillary electrophoresis frontal analysis (CE-FA) for CE. HPAC relies on the fixation of proteins on the surfaces of chromatographic stationary phases by covalent linking or physical adsorption, followed by obtaining the drug-protein interaction information through a variety of chromatographic methods. In the frontal chromatography analysis, mobile phases with different concentrations of drugs are passed through the HPAC column to obtain different breakthrough times. The process can determine the number of drug binding sites and the binding constant of each site in the affinity protein with high accuracy. The zonal elution method can detect the drug binding sites on proteins using site-specific probes to determine whether there is competition between drugs and probes. The sample consumption and analysis time of the zonal elution method are much less than those in frontal chromatography analysis. The ultrafast affinity extraction method can inject complex samples, such as serum, into affinity columns to determine the free drug components. It can measure the combination and dissociation constants of drug-protein interactions by changing the chromatography flow rate. Peak profiling and peak decay analyses are both effective methods for investigating the dissociation of drugs and proteins. In CE analysis, the drug and protein samples are dissolved in an electrophoresis buffer, and their interactions are measured during electrophoresis with high accuracy and low sample consumption. However, the adsorption of proteins on the capillary wall can compromise CE performance. Common CE methods in drug-protein interaction analysis are ACE and CE-FA. ACE is usually performed by changing the effective mobility of drugs via the addition of different concentrations of proteins. This method has been widely used, and several variant techniques have been developed recently. CE-FA involves the sampling of a drug premixed at a known concentration with a target protein. Compared with other CE methods, CE-FA exhibits the unique advantages of high throughput, automatic online analysis, and the ability to determine high-order drug-protein interactions. Finally, the shortcomings of current chromatography methods are summarized, and the application prospects and development direction of chromatography technology in the field of drug-plasma protein interaction research are discussed.
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Ninagawa S. N-glycan Dependent Protein Quality Control System in the Endoplasmic Reticulum. TRENDS GLYCOSCI GLYC 2021. [DOI: 10.4052/tigg.2108.2e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Satoshi Ninagawa
- Department of Biophysics, Graduate School of Science, Kyoto University
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Ninagawa S. N-glycan Dependent Protein Quality Control System in the Endoplasmic Reticulum. TRENDS GLYCOSCI GLYC 2021. [DOI: 10.4052/tigg.2108.2j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Satoshi Ninagawa
- Department of Biophysics, Graduate School of Science, Kyoto University
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