1
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Hu W, Li J, Zhang X, Lv Y, Ye H, Li C, Liu E, Chu C. Integrating sodium cholate-modified MOF hybrid lipase and solubilization of hydrophobic candidates into a step for liganding fishing lipase inhibitors from Nelumbinis Folium. J Pharm Biomed Anal 2024; 251:116430. [PMID: 39197203 DOI: 10.1016/j.jpba.2024.116430] [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: 06/10/2024] [Revised: 08/08/2024] [Accepted: 08/18/2024] [Indexed: 09/01/2024]
Abstract
Enzyme immobilization by metal organic frameworks (MOFs) is an efficient way for screening active constituents in natural products. However, the enzyme's biocatalysis activity is usually decreased due to unfavorable conformational changes during the immobilization process. In this study, sodium cholate was firstly used as the modifier for zeolitic imidazolate framework-8 (ZIF-8) immobilized lipase to increase both the stability and activity. More importantly, with the help of solubilization of sodium cholate, a total of 3 flavonoids and 6 alkaloids candidate compounds were fished out. Their structures were identified and the enzyme inhibitory activities were verified. In addition, the binding information between the candidate compound and the enzyme was displayed by molecular docking. This study provides valuable information for the improvement of immobilized enzyme activity and functional active ingredients in complicated medicinal plant extracts.
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Affiliation(s)
- Wenxiang Hu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Jiayun Li
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Xindan Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Yangbin Lv
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Hongwei Ye
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Chenyue Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Ehu Liu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, PR China.
| | - Chu Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, PR China.
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2
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Liu X, Wu J, Yang S, Li L, Ji Y. Carboxy-Functionalized Covalent Organic Framework as a Carrier for Lipase Immobilization and Its Application in Inhibitors Screening. Appl Biochem Biotechnol 2024; 196:4024-4037. [PMID: 37819460 DOI: 10.1007/s12010-023-04725-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2023] [Indexed: 10/13/2023]
Abstract
Covalent organic frameworks (COFs) with large specific surface areas, high porosity, good stability, and designable structure are promising carriers for immobilized enzymes. It is important to explore lipase inhibitors from natural foods as lipase inhibitors are closely related to the treatment of obesity. In this work, a carboxyl functionalized covalent organic framework (TpBD-3COOH) was prepared by solvothermal method for covalent immobilization of porcine pancreatic lipase (PPL) and obtained the enzyme-decorated COF (PPL@COF). The immobilized lipase showed wider pH and temperature tolerance with the same optimal pH and temperature of 7.5 and 50 ℃ compared to free lipase. After 6 successive reuses, the PPL@COF maintained 53.0% of its original activity. Immobilized lipase also displayed enhanced storage stability (55.4% after 14 days at 4 ℃). When p-nitrophenyl acetate was applied as the substrate, the calculated Michaelis constant was 3.57 mM and the half maximal inhibitory concentration of orlistat was 3.20 μM. Finally, the PPL@COF was used for enzyme inhibitors screening from natural foods combined with UV spectrophotometry, and Hawthorn was screened for excellent lipase inhibitory activity.
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Affiliation(s)
- Xue Liu
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Jiaqi Wu
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Shan Yang
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Lingyu Li
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Yibing Ji
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China.
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China.
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3
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Li B, Jiao P, Tang C. Deep eutectic solvent extraction combined with magnetic bead ligand fishing for identification of α-glucosidase inhibitors from Pueraria lobata. J Sep Sci 2024; 47:e2300672. [PMID: 38135874 DOI: 10.1002/jssc.202300672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
In this study, a deep eutectic solvent (DES) extraction combined with a magnetic bead ligand affinity analytical method was developed and used for α-glucosidase inhibitor identification from Pueraria lobata. Several critical parameters affecting the analysis performance, including the type of DES, molar ratio, water amount, pH, salt concentration, and volume of DES, were investigated. The selected analytical sample preparation conditions were as follows. The composition of DES is choline chloride-1,4-butanediol (1:3), the water content is 40%, pH is 7.0 and the volume of extraction solution is 2 mL. The obtained sample extraction solution was analyzed directly using α-glucosidase immobilized magnetic beads (GMBs). Three α-glucosidase inhibitors in Pueraria lobata, including puerarin, daidzin, and daidzein, were identified. Luteolin was used as a positive control to evaluate the method's selectivity. Results showed it could selectively bond to the GMBs in the DES. As the affinity analysis was performed directly in a DES, the solution-removing process could be avoided. The intra-day and inter-day precisions of the method are 5.21% and 6.38%, respectively. The solvent amount was 1/50-1/2000 of that used in traditional methods.
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Affiliation(s)
- Bing Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, Department of Natural Medicine, School of Pharmacy, Tianjin Medical University, Tianjin, P. R. China
| | - Pan Jiao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, Department of Natural Medicine, School of Pharmacy, Tianjin Medical University, Tianjin, P. R. China
| | - Cheng Tang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, Department of Natural Medicine, School of Pharmacy, Tianjin Medical University, Tianjin, P. R. China
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4
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Guajardo N. Immobilization of Lipases Using Poly(vinyl) Alcohol. Polymers (Basel) 2023; 15:polym15092021. [PMID: 37177168 PMCID: PMC10181104 DOI: 10.3390/polym15092021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 04/22/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
Lipases are very versatile enzymes because they catalyze various hydrolysis and synthesis reactions in a chemo-, regio-, and stereoselective manner. From a practical point of view, immobilization allows the recovery and stabilization of the biocatalyst for its application in different types of bioreactors. Among the various support options for immobilizing lipases is polyvinyl alcohol (PVA), which, when functionalized or combined with other materials, provides different characteristics and properties to the biocatalyst. This review analyzes the multiple possibilities that PVA offers as a material to immobilize lipases when combined with alginate, chitosan, and hydroxypropylmethylcellulose (HPMC), incorporating magnetic properties together with the formation of fibers and microspheres. The articles analyzed in this review were selected using the Scopus database in a range of years from 1999 to 2023, finding a total of 42 articles. The need to expand knowledge in this area is due to the great versatility and scaling possibilities that PVA has as a support for lipase immobilization and its application in different bioreactor configurations.
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Affiliation(s)
- Nadia Guajardo
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Santiago 8940000, Chile
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5
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Bilal M, Rashid EU, Munawar J, Iqbal HMN, Cui J, Zdarta J, Ashraf SS, Jesionowski T. Magnetic metal-organic frameworks immobilized enzyme-based nano-biocatalytic systems for sustainable biotechnology. Int J Biol Macromol 2023; 237:123968. [PMID: 36906204 DOI: 10.1016/j.ijbiomac.2023.123968] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/21/2023] [Accepted: 03/04/2023] [Indexed: 03/11/2023]
Abstract
Nanobiocatalysts, in which enzyme molecules are integrated into/onto multifunctional materials, such as metal-organic frameworks (MOFs), have been fascinating and appeared as a new interface of nanobiocatalysis with multi-oriented applications. Among various nano-support matrices, functionalized MOFs with magnetic attributes have gained supreme interest as versatile nano-biocatalytic systems for organic bio-transformations. From the design (fabrication) to deployment (application), magnetic MOFs have manifested notable efficacy in manipulating the enzyme microenvironment for robust biocatalysis and thus assure requisite applications in several areas of enzyme engineering at large and nano-biocatalytic transformations, in particular. Magnetic MOFs-linked enzyme-based nano-biocatalytic systems offer chemo-regio- and stereo-selectivities, specificities, and resistivities under fine-tuned enzyme microenvironments. Considering the current sustainable bioprocesses demands and green chemistry needs, we reviewed synthesis chemistry and application prospects of magnetic MOFs-immobilized enzyme-based nano-biocatalytic systems for exploitability in different industrial and biotechnological sectors. More specifically, following a thorough introductory background, the first half of the review discusses various approaches to effectively developed magnetic MOFs. The second half mainly focuses on MOFs-assisted biocatalytic transformation applications, including biodegradation of phenolic compounds, removal of endocrine disrupting compounds, dye decolorization, green biosynthesis of sweeteners, biodiesel production, detection of herbicides and screening of ligands and inhibitors.
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Affiliation(s)
- Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Ehsan Ullah Rashid
- Department of Chemistry, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Junaid Munawar
- College of Chemistry, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029, PR China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico
| | - Jiandong Cui
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China
| | - Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Syed Salman Ashraf
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi, P.O. Box 127788, United Arab Emirates; Center for Biotechnology (BTC), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Center for Catalysis and Separation (CeCaS), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Advanced Materials Chemistry Center (AMCC), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
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Guo S, Wang S, Meng J, Gu D, Yang Y. Immobilized enzyme for screening and identification of anti-diabetic components from natural products by ligand fishing. Crit Rev Biotechnol 2023; 43:242-257. [PMID: 35156475 DOI: 10.1080/07388551.2021.2025034] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Diabetes is a chronic metabolic disease caused by insufficient insulin secretion and insulin resistance. Natural product is one of the most important resources for anti-diabetic drug. However, due to the extremely complex composition, this research is facing great challenges. After the advent of ligand fishing technology based on enzyme immobilization, the efficiency of screening anti-diabetic components has been greatly improved. In order to provide critical knowledge for future research in this field, the application progress of immobilized enzyme in screening anti-diabetic components from complex natural extracts in recent years was reviewed comprehensively, including novel preparation technologies and strategies of immobilized enzyme and its outstanding application prospect in many aspects. The basic principles and preparation steps of immobilized enzyme were briefly described, including entrapment, physical adsorption, covalent binding, affinity immobilization, multienzyme system and carrier-free immobilization. New formatted immobilized enzymes with different carriers, hollow fibers, magnetic materials, microreactors, metal organic frameworks, etc., were widely used to screen anti-diabetic compositions from various natural products, such as Ginkgo biloba, Morus alba, lotus leaves, Pueraria lobata, Prunella vulgaris, and Magnolia cortex. Furthermore, the challenges and future prospects in this field were put forward in this review.
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Affiliation(s)
- Shuang Guo
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
| | - Shuai Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
| | - Jing Meng
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
| | - Dongyu Gu
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China.,College of Marine Science and Environment, Dalian Ocean University, Dalian, China
| | - Yi Yang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
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7
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Bai X, Fan W, Luo Y, Liu Y, Zhang Y, Liao X. Fast Screening of Protein Tyrosine Phosphatase 1B Inhibitor from Salvia miltiorrhiza Bge by Cell Display-Based Ligand Fishing. Molecules 2022; 27:molecules27227896. [PMID: 36431993 PMCID: PMC9693971 DOI: 10.3390/molecules27227896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022] Open
Abstract
Salvia miltiorrhiza Bge is a medicinal plant (Chinese name "Danshen") widely used for the treatment of hyperglycemia in traditional Chinese medicine. Protein tyrosine phosphatase 1B (PTP1B) has been recognized as a potential target for insulin sensitizing for the treatment of diabetes. In this work, PTP1B was displayed at the surface of E. coli cells (EC-PTP1B) to be used as a bait for fishing of the enzyme's inhibitors present in the aqueous extract of S. miltiorrhiza. Salvianolic acid B, a polyphenolic compound, was fished out by EC-PTP1B, which was found to inhibit PTP1B with an IC50 value of 23.35 µM. The inhibitory mechanism of salvianolic acid B was further investigated by enzyme kinetic experiments and molecular docking, indicating salvianolic acid B was a non-competitive inhibitor for PTP1B (with Ki and Kis values of 31.71 µM and 20.08 µM, respectively) and its binding energy was -7.89 kcal/mol. It is interesting that in the comparative work using a traditional ligand fishing bait of PTP1B-immobilized magnetic nanoparticles (MNPs-PTP1B), no ligands were extracted at all. This study not only discovered a new PTP1B inhibitor from S. miltiorrhiza which is significant to understand the chemical basis for the hypoglycemic activity of this plant, but also indicated the effectiveness of cell display-based ligand fishing in screening of active compounds from complex herbal extracts.
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Affiliation(s)
- Xiaolin Bai
- Chinese Academy of Sciences, Chengdu Institute of Biology, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenqin Fan
- Chinese Academy of Sciences, Chengdu Institute of Biology, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yingjie Luo
- Department of Molecular Science, The University of Western Australia, Perth, WA 6000, Australia
| | - Yipei Liu
- Polus International College, Chengdu 610103, China
| | - Yongmei Zhang
- Chinese Academy of Sciences, Chengdu Institute of Biology, Chengdu 610041, China
- Correspondence: (Y.Z.); (X.L.); Tel.: +86-28-82890756 (Y.Z.); +86-28-828290402 (X.L.)
| | - Xun Liao
- Chinese Academy of Sciences, Chengdu Institute of Biology, Chengdu 610041, China
- Correspondence: (Y.Z.); (X.L.); Tel.: +86-28-82890756 (Y.Z.); +86-28-828290402 (X.L.)
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8
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Zhao Y, Yuan L, Bai XL, Jiang XX, Zhang Y, Fang Q, Zhang Q, Liao X. Tyrosinase covalently immobilized on carboxyl functionalized magnetic nanoparticles for fishing of the enzyme's ligands from Prunellae Spica. J Sep Sci 2022; 45:3635-3645. [PMID: 35852941 DOI: 10.1002/jssc.202200303] [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: 04/13/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 11/06/2022]
Abstract
In this study, tyrosinase was immobilized on carboxyl functionalized silica-coated magnetic nanoparticles for the first time to be used for fishing of tyrosinase's ligands present in complex plant extract. The immobilized tyrosinase was characterized by transmission electron microscopy, vibrating sample magnetometry, Fourier transform infrared spectroscopy, thermo-gravimetric analyzer, and atomic force microscopy. The reusability and thermostability of the immobilized tyrosinase were found significantly superior to its free counterpart. Two tyrosinase's ligands, that is, caffeic acid (1) and rosmarinic acid (2), were fished out from extract of the traditional Chinese medicine Prunellae Spica by the immobilized tyrosinase. Compound 1 was found to be an activator of the enzyme with the half maximal effective concentration value of 0.27 ± 0.06 mM, while compound 2 was an inhibitor with the half maximal inhibitory concentration value of 0.14 ± 0.03 mM. Taking advantage of the convenience of magnetic separation and specific extraction ability of ligand fishing, the proposed method exhibited great potential for screening of bioactive compounds from complex matrices.
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Affiliation(s)
- Yan Zhao
- School of Science, Xihua University, Chengdu, P. R. China
| | - Li Yuan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xiao-Lin Bai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xin-Xin Jiang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Yi Zhang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Qiong Fang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Qin Zhang
- School of Science, Xihua University, Chengdu, P. R. China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China
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9
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Xu J, Cao P, Fan Z, Luo X, Yang G, Qu T, Gao J. Rapid Screening of Lipase Inhibitors in Scutellaria baicalensis by Using Porcine Pancreatic Lipase Immobilized on Magnetic Core–Shell Metal–Organic Frameworks. Molecules 2022; 27:molecules27113475. [PMID: 35684413 PMCID: PMC9182405 DOI: 10.3390/molecules27113475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/22/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
As for ligand fishing, the current immobilization approaches have some potential drawbacks such as the small protein loading capacity and difficult recycle process. The core–shell metal–organic frameworks composite (Fe3O4-COOH@UiO-66-NH2), which exhibited both magnetic characteristics and large specific surface area, was herein fabricated and used as magnetic support for the covalent immobilization of porcine pancreatic lipase (PPL). The resultant composite Fe3O4-COOH@UiO-66-NH2@PPL manifested a high loading capacity (247.8 mg/g) and relative activity recovery (101.5%). In addition, PPL exhibited enhanced tolerance to temperature and pH after immobilization. Then, the composite Fe3O4-COOH@UiO-66-NH2@PPL was incubated with the extract of Scutellaria baicalensis to fish out the ligands. Eight lipase inhibitors were obtained and identified by UPLC-Q-TOF-MS/MS. The feasibility of the method was further confirmed through an in vitro inhibitory assay and molecular docking. The proposed ligand fishing technique based on Fe3O4-COOH@UiO-66-NH2@PPL provided a feasible, selective, and effective platform for discovering enzyme inhibitors from natural products.
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Affiliation(s)
| | | | | | | | | | | | - Jianping Gao
- Correspondence: Jianping Gao, E-mail: ; Tel.: +86-0351-398-5244
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10
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Yan TC, Cao J, Ye LH. Recent advances on discovery of enzyme inhibitors from natural products using bioactivity screening. J Sep Sci 2022; 45:2766-2787. [PMID: 35593478 DOI: 10.1002/jssc.202200084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/23/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022]
Abstract
The essence of enzymes is to keep the homeostasis and balance of human by catalyzing metabolic responses and modulating cell. Suppression of enzyme slows the progress of some diseases, making it a therapeutic target. Therefore, it is important to develop enzyme inhibitors by proper bioactivity screening strategies for the future treatment of some major diseases. In this review, we summarized the recent (2015-2020) applications of several screening strategies (electrophoretically mediated microanalysis, enzyme immobilization, affinity chromatography, and affinity ultrafiltration) in finding enzyme inhibitors from certain species of bioactive natural compounds of plant origin (flavonoids, alkaloids, phenolic acids, saponins, anthraquinones, coumarins). At the same time, the advantages and disadvantages of each strategy were also discussed, and the future possible development direction in enzyme inhibitor screening has prospected. To sum up, it is expected to help readers select suitable screening strategies for enzyme inhibitors and provide useful information for the study of the biological of specific kinds of natural products. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Tian-Ci Yan
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China
| | - Jun Cao
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China.,College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Li-Hong Ye
- Department of Traditional Chinese Medicine, Hangzhou Red Cross Hospital, Hangzhou, 310003, PR China
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11
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Characteristics of immobilized dye-decolorizing peroxidase from Bacillus amyloliquefaciens and application to the bioremediation of dyeing effluent. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Zhao Y, Hu JJ, Bai XL, Liu HP, Qi XW, Liao X. Fast screening of tyrosinase inhibitors from traditional Chinese medicinal plants by ligand fishing in combination with in situ fluorescent assay. Anal Bioanal Chem 2022; 414:2265-2273. [PMID: 34982177 DOI: 10.1007/s00216-021-03864-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/26/2021] [Accepted: 12/22/2021] [Indexed: 11/30/2022]
Abstract
A simple and rapid method for screening of tyrosinase (TYR) inhibitors present in traditional Chinese medicines (TCMs) was developed by combining ligand fishing and the fluorescent enzymatic assay based on dopamine-functionalized carbon quantum dots (CQDs-Dopa). Ligands of the enzyme present in the TCM extractions were firstly adsorbed on the enzyme-modified magnetic beads, and then the beads were magnetically separated and subjected directly to the CQDs-Dopa-based fluorescent assay. Finally, compounds were desorbed from the "active" beads and identified with ultra-performance liquid chromatography-triple quadrupole mass spectrometry. A known natural TYR inhibitor quercetin was selected to assess the feasibility and quantification performance of this method, and good linearity in the range of 0.01-0.16 mM (R2 = 0.992) with a low detection limit of 0.004 mM was obtained. This method was then applied to screen TYR inhibitors present in Scutellaria baicalensis and Sophora flavescens. Six TYR inhibitors including baicalin (1), baicalein (2), wogonin (3), oroxylin A (4), kurarinone (5), and sophoraflavanone G (6) were found, among which 1-4 were firstly discovered in this work. This is the first report on the in situ assessment of the target compounds obtained by ligand fishing in the form of a mixture, which exhibited the combined advantages of specific extraction ability of ligand fishing and the high sensitivity of CQDs-based fluorescent assay, showing great potential for fast screening of enzyme inhibitors from TCMs.
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Affiliation(s)
- Yan Zhao
- School of Science, Xihua University, Chengdu, 610039, China
| | - Jin-Jie Hu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Lin Bai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao-Peng Liu
- School of Science, Xihua University, Chengdu, 610039, China
| | - Xu-Wei Qi
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.
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13
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Xiong X, Nan Y, Yu H. Reliable screening of beta
2
‐adrenoceptor ligands from Rheum palmatum L extract using a paper‐based chromatographic column containing the immobilized receptor. SEPARATION SCIENCE PLUS 2022. [DOI: 10.1002/sscp.202100043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xunyu Xiong
- College of Chemistry and Chemical Engineering Xi'an Shiyou University Xi'an P. R. China
| | - Yefei Nan
- College of Chemistry and Chemical Engineering Xi'an Shiyou University Xi'an P. R. China
| | - Hongjiang Yu
- College of Chemistry and Chemical Engineering Xi'an Shiyou University Xi'an P. R. China
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14
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Liu J, Zhang HX, Shi YP. Lipase immobilization on magnetic cellulose microspheres for rapid screening inhibitors from traditional herbal medicines. Talanta 2021; 231:122374. [DOI: 10.1016/j.talanta.2021.122374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/22/2021] [Accepted: 03/27/2021] [Indexed: 12/30/2022]
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Immobilization of β-galactosidase by halloysite-adsorption and entrapment in a cellulose nanocrystals matrix. Biochim Biophys Acta Gen Subj 2021; 1865:129896. [PMID: 33774147 DOI: 10.1016/j.bbagen.2021.129896] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/01/2021] [Accepted: 03/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Immobilization allows easy recovery and reuse of enzymes in industrial processes. In addition, it may enhance enzyme stability, allowing prolonged use. A simple and novel method of immobilizing β-galactosidase is reported. Effects of immobilization on the enzyme characteristics are explained. β-Galactosidase is well established in dairy processing and has emerging applications in novel syntheses. METHODS β-Galactosidase was immobilized by physical adsorption on halloysite, an aluminosilicate nanomaterial. Optimal conditions for adsorption were identified. The optimally prepared halloysite-adsorbed enzyme was then entrapped in a porous matrix of nanocrystals of sulfated bacterial cellulose, to further enhance stability. RESULTS Under optimal conditions, 89.5% of the available protein was adsorbed per mg of halloysite. The most active and stable final immobilized biocatalyst had 1 part by mass of the enzyme-supporting halloysite particles mixed with 2 parts of cellulose nanocrystals. Immobilization raised the optimal pH of the catalyst to 7.5 (from 6.0 for the native enzyme) and temperature to 55 °C (40 °C for the native enzyme). During storage at 25 °C, the immobilized enzyme retained 75.8% of initial activity after 60 days compared to 29.2% retained by the free enzyme. CONCLUSION The immobilization method developed in this work enhanced enzyme stability during catalysis and storage. Up to 12 cycles of repeated use of the catalyst became feasible. GENERAL SIGNIFICANCE The simple and rapid immobilization strategy of this work is broadly applicable to enzymes used in diverse bioconversions.
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Capturing Dioclea Reflexa Seed Bioactives on Halloysite Nanotubes and pH Dependent Release of Cargo against Breast (MCF-7) Cancers In Vitro. SEPARATIONS 2021. [DOI: 10.3390/separations8030026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this work, optimization parameters were developed to capture plant metabolites from Dioclea Reflexa (DR) seed ex-tracts onto halloysites nanotubes (HNTs). A one-step pool of the crude extracts at neutral pH from the HNT lumen failed to elicit a reduction in breast cancer, Michigan Cancer Foundation-7 (MCF-7) cell viability. However, the pH-dependent elution of metabolites revealed that the acidic pH samples exhibited profound antiproliferative effects on the cancer cells compared to the basic pH metabolites using both trypan blue dye exclusion assay and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) viability test. pH~5.2 samples demonstrated by half-maximal inhibitory concentration (IC50) of 0.8 mg and a cyclic voltammetry oxidation peak potential and current of 234 mV and 0.45 µA, respectively. This indicates that the cancer cells death could be attributed to membrane polarization/depolarization effects of the sample. Fluorescence-activated cell sorting (FACS) studies confirmed that the plant metabolites affected breast cancer apoptotic signaling pathways of cell death. The studies proved that plant metabolites could be captured using simplified screening procedures for rapid drug discovery purposes. Such procedures, however, would require the integration of affordable analytical tools to test and isolate individual metabolites. Our approach could be an important strategy to create a library and database of bioactive plant metabolites based on pH values.
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Lima RDCL, Böcker U, McDougall GJ, Allwood JW, Afseth NK, Wubshet SG. Magnetic ligand fishing using immobilized DPP-IV for identification of antidiabetic ligands in lingonberry extract. PLoS One 2021; 16:e0247329. [PMID: 33617581 PMCID: PMC7899330 DOI: 10.1371/journal.pone.0247329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/05/2021] [Indexed: 11/18/2022] Open
Abstract
In this work, a new magnetic ligand fishing probe for discovery of DPP-IV inhibitory ligands was developed and it was tested as a proof of concept on the fruit extract of Vaccinium vitis-idaea (lingonberry). The ligands were shown to have appreciable dipeptidyl peptidase IV (DPP-IV) inhibitory activity (IC50: 31.8 μg mL-1).) Inhibition of DPP-IV is a well-known therapeutic approach for management of type 2 diabetes (T2D). DPP-IV was successfully immobilized onto magnetic beads and was shown to retain its catalytic activity and selectivity over a model mixture. A total of four ligands were successfully fished out and identified as cyanidin-3-galactoside (2), cyanidin-3-arabinoside (3), proanthocynidin A (4), and 10-carboxyl-pyranopeonidin 3-O-(6″-O-p-coumaroyl)-glucoside (5) using HPLC/HRMS.
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Affiliation(s)
| | | | - Gordon J. McDougall
- Plant Biochemistry and Food Quality Group, Environmental and Biochemical Sciences Department, The James Hutton Institute, Invergowrie, Dundee, Scotland, United Kingdom
| | - J. William Allwood
- Plant Biochemistry and Food Quality Group, Environmental and Biochemical Sciences Department, The James Hutton Institute, Invergowrie, Dundee, Scotland, United Kingdom
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Zeng F, Wu W, Zhang Y, Pan X, Duan J. Rapid screening of lipase inhibitors in licorice extract by using porcine pancreatic lipase immobilized on Fe 3O 4 magnetic nanoparticles. Food Funct 2021; 12:5650-5657. [PMID: 34018495 DOI: 10.1039/d0fo03352a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chalcones, a class of natural lipase inhibitors, have received substantial attention from researchers in recent years. Although many kinds of chalcones are typically distributed in G. inflata, there is little literature about the anti-lipase activity of G. inflata extracts (GIEs). In the present study, a ligand fishing strategy for fast screening of lipase inhibitors from GIEs was thus proposed. Porcine pancreatic lipase (PPL) was firstly immobilized on carboxyl modified Fe3O4 magnetic nanoparticles (MNPs) to obtain PPL functionalized MNPs (PPL@MNPs), and then the PPL@MNPs were incubated with a bioactive fraction to fish out the ligands. Eight ligands were obtained and identified as one flavone together with seven chalcones. Licochalcone A, licochalcone D and licochalcone E inhibited pancreatic lipase (PL) with IC50 of 4.9, 3.2 and 5.8 μM, respectively. Meanwhile, investigation of the structure-activity relationship also revealed that isopentenyl and hydroxyl substituents at ring A were essential for the noncovalent inhibitory potency of the chalcones.
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Affiliation(s)
- Fei Zeng
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China. and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Wenxing Wu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China. and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Yiying Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China. and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Xin Pan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China. and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources and Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China. and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, PR China
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Pumchan A, Cheycharoen O, Unajak S, Prasittichai C. An oral biologics carrier from modified halloysite nanotubes. NEW J CHEM 2021. [DOI: 10.1039/d1nj00093d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we report the use of surface-modified halloysite as an effective oral vaccine carrier for Nile tilapia.
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Affiliation(s)
- Ansaya Pumchan
- Department of Biochemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
| | - Orrapa Cheycharoen
- Department of Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
| | - Sasimanas Unajak
- Department of Biochemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
| | - Chaiya Prasittichai
- Department of Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
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Yang H, Sun W, Ma P, Yao C, Fan Y, Li S, Yuan J, Zhang Z, Li X, Lin M, Hou Q. Multiple Components Rapidly Screened from Perilla Leaves Attenuate Asthma Airway Inflammation by Synergistic Targeting on Syk. J Inflamm Res 2020; 13:897-911. [PMID: 33223845 PMCID: PMC7671475 DOI: 10.2147/jir.s281393] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/16/2020] [Indexed: 12/17/2022] Open
Abstract
Background Perilla frutescens (L.) Britt., a classic medicinal plant, has been demonstrated to have anti-inflammatory and anti-allergic effects in asthma. Perilla leaves extract (PLE) exerted significant therapeutic effect against allergic asthma inflammation through Syk inhibition. But the active chemical ingredients from PLE are complex and unclear, it is difficult to fully elucidate its pharmacological mechanisms. Methods A method was established for rapid screening and characterization of active ingredients from PLE that targeted Syk, with which three potential active ingredients were identified. By using OVA-induced allergic asthma mouse model in vivo, OVA-induced human PBMCs inflammation model and DNP-IgE/BSA-induced RBL-2H3 cells model in vitro, the effects and mechanisms of PLE and its active components were evaluated. Results Using Syk-affinity screening method, roseoside (RosS), vicenin-2 (Vic-2) and rosmarinic acid (RosA) were identified from PLE. In vitro, PLE and its ingredients showed significant inhibitory activities against Syk, with their mixture (Mix, prepared by RosS, Vic-2 and RosA in accordance with their ratio in Syk-conjugated beads bound fraction) showing a stronger inhibitory activity. RosS, Vic-2 and RosA also showed significant effects on allergic asthma, and a synergistic effect of Mix was observed. Moreover, treatment with PLE, RosS, Vic-2, RosA, and Mix significantly inhibited the expression and phosphorylation of Syk, PKC, NF-κB p65, and cPLA2 in allergic mice lung tissue and in RBL-2H3 cells. Conclusion PLE may alleviate allergic airway inflammation partly through the multiple components synergistic targeting on Syk and its downstream inflammatory pathway.
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Affiliation(s)
- Hui Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Wei Sun
- Beijing Friendship Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Pei Ma
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Chunsuo Yao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Yannan Fan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Shuyi Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Jiqiao Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Ziqian Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Xuyu Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Mingbao Lin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Qi Hou
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
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Zhao CP, Yin SJ, Chen GY, Wang Y, Chen H, Zhao J, Yang FQ. Adsorbed hollow fiber immobilized tyrosinase for the screening of enzyme inhibitors from Pueraria lobata extract. J Pharm Biomed Anal 2020; 193:113743. [PMID: 33221573 DOI: 10.1016/j.jpba.2020.113743] [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: 07/09/2020] [Revised: 09/23/2020] [Accepted: 10/27/2020] [Indexed: 10/23/2022]
Abstract
In this study, a method based on adsorbed hollow fiber immobilized tyrosinase (TYR) was developed to screening potential TYR inhibitors from Pueraria lobate extract. Kojic acid and ranitidine were used as positive and negative control to verify the reliability of the proposed method, respectively. Several significant parameters of the screening process, including the amount of P. lobata extract, adsorption time and incubation time, were optimized. After investigating the repeatability of the developed method, seven potential active compounds in P. lobata extract were successfully detected and their chemical structures were tentatively identified by liquid chromatography - mass spectrometry analysis. Furthermore, the inhibitory activity of four identified compounds on TYR was tested in vitro, and three of them, namely, puerarin, puerarin-6″-O-xyloside and puerarin apioside were verified to have good TYR inhibitory activity with IC50 value of 478.5, 513.8, and 877.3 μM, respectively. In addition, the molecular docking results indicated that these compounds could bind to the amino acid residues in TYR catalytic pocket. These results proved that the proposed method is a feasible approach for screening of TYR inhibitors from plant extract.
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Affiliation(s)
- Cong-Peng Zhao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Shi-Jun Yin
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Yuan Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Hua Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China.
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China.
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Mohammadi NS, Khiabani MS, Ghanbarzadeh B, Mokarram RR. Enhancement of biochemical aspects of lipase adsorbed on halloysite nanotubes and entrapped in a polyvinyl alcohol/alginate hydrogel: strategies to reuse the most stable lipase. World J Microbiol Biotechnol 2020; 36:45. [PMID: 32130535 DOI: 10.1007/s11274-020-02817-2] [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: 12/11/2019] [Accepted: 02/20/2020] [Indexed: 12/21/2022]
Abstract
Entrapment of halloysite nanotubes (HNTs) loaded with enzyme, into a polymer matrix (PVA/Alg), is a way to produce an environment surrounding the adsorbed enzyme molecules which improves the enzyme properties such as storage and operational stability. Hence, in this study, we optimised the factors affecting lipase adsorption onto halloysite nanotubes including halloysite amounts (5, 42.5 and 80 mg), lipase concentrations (30, 90 and 150 µg/ml), temperatures (5, 20 and 35 °C) and adsorption times (30, 165 and 300 min). The optimal conditions were determined as an halloysite amount of 50 to 80 mg, a lipase concentration of 30 to 57 μg/ml, an adsorption temperature of 20 °C and an adsorption time of 165 min, which resulted in a specific activity and adsorption efficiency of 15,000 (U/g protein) and 70%, respectively. Then, lipase adsorbed under optimal conditions was entrapped in a PVA/Alg hydrogel. The formation mechanism of immobilized lipase was investigated by FESEM and FTIR. Subsequent entrapment of adsorbed lipase improved the lipase storage and operational stability. Km, Vmax, Kcat and Kcat/Km values showed an increase in the entrapped HNT-lipase performance in comparison with the free and adsorbed lipase.
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Affiliation(s)
- Najmeh Sabahi Mohammadi
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran
| | - Mahmood Sowti Khiabani
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran.
| | - Babak Ghanbarzadeh
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran.,Department of Food Engineering, Faculty of Engineering, Near East University, Nicosia, Cyprus Mersin, Turkey
| | - Reza Rezaei Mokarram
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. Box 51666-16471, Tabriz, Iran
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“Recent advances on support materials for lipase immobilization and applicability as biocatalysts in inhibitors screening methods”-A review. Anal Chim Acta 2020; 1101:9-22. [DOI: 10.1016/j.aca.2019.11.073] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/29/2019] [Accepted: 11/30/2019] [Indexed: 01/01/2023]
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25
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An immobilization enzyme for screening lipase inhibitors from Tibetan medicines. J Chromatogr A 2020; 1615:460711. [DOI: 10.1016/j.chroma.2019.460711] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/14/2019] [Accepted: 11/14/2019] [Indexed: 01/08/2023]
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Chen X, Xue S, Lin Y, Luo J, Kong L. Immobilization of porcine pancreatic lipase onto a metal-organic framework, PPL@MOF: A new platform for efficient ligand discovery from natural herbs. Anal Chim Acta 2020; 1099:94-102. [DOI: 10.1016/j.aca.2019.11.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/12/2019] [Accepted: 11/17/2019] [Indexed: 10/25/2022]
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Tyrosinase-mediated dopamine polymerization modified magnetic alginate beads for dual-enzymes encapsulation: Preparation, performance and application. Colloids Surf B Biointerfaces 2020; 188:110800. [PMID: 31958620 DOI: 10.1016/j.colsurfb.2020.110800] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/24/2019] [Accepted: 01/13/2020] [Indexed: 01/05/2023]
Abstract
In this study, a simple and efficient method to obtain entrapment of mixtures of double enzymes is developed. As a proof of principle, double enzymes (tyrosinase (TYR) and β-glucosidase (β-Glu)) were co-immobilized in magnetic alginate-polydopamine (PDA) beads using in situ TYR-mediated dopamine polymerization and internal setting strategy-mediated magnetic alginate-PDA gelation. The leakage of enzymes from the magnetic alginate beads was significantly reduced by exploiting the double network cross-linking of alginate and PDA, which was induced by the d-(+)-Gluconic acid δ-lactone (GDL) and TYR, respectively. The physicochemical properties of the prepared magnetic alginate beads were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. After that, the enzymatic reaction conditions and the performance of the entrapped TYR and β-Glu, such as enzyme kinetics and inhibition kinetics, were investigated. The Michaelis-Menten constants (Km) of the entrapped TYR and β-Glu were determined as 2.72 and 3.45 mM, respectively. The half-maximal inhibitory concentrations (IC50) of kojic acid and castanospermine for the entrapped TYR and β-Glu were determined as 13.04 and 56.23 μM, respectively. Finally, the entrapped double enzymes magnetic alginate beads were successfully applied to evaluate the inhibitory potency of six kinds of tea polyphenols extracts. Black tea and white tea showed high inhibition activity against TYR were (36.14 ± 1.43)% and (36.76 ± 2.35)%, respectively, while the black tea and dark tea showed high inhibition activity against β-Glu were (37.89 ± 6.70)% and (21.28 ± 4.68)%, respectively.
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de Moraes MC, Cardoso CL, Cass QB. Solid-Supported Proteins in the Liquid Chromatography Domain to Probe Ligand-Target Interactions. Front Chem 2019; 7:752. [PMID: 31803714 PMCID: PMC6873629 DOI: 10.3389/fchem.2019.00752] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 10/21/2019] [Indexed: 12/11/2022] Open
Abstract
Ligand-target interactions play a central role in drug discovery processes because these interactions are crucial in biological systems. Small molecules-proteins interactions can regulate and modulate protein function and activity through conformational changes. Therefore, bioanalytical tools to screen new ligands have focused mainly on probing ligand-target interactions. These interactions have been evaluated by using solid-supported proteins, which provide advantages like increased protein stability and easier protein extraction from the reaction medium, which enables protein reuse. In some specific approaches, precisely in the ligand fishing assay, the bioanalytical method allows the ligands to be directly isolated from complex mixtures, including combinatorial libraries and natural products extracts without prior purification or fractionation steps. Most of these screening assays are based on liquid chromatography separation, and the binding events can be monitored through on-line or off-line methods. In the on-line approaches, solid supports containing the immobilized biological target are used as chromatographic columns most of the time. Several terms have been used to refer to such approaches, such as weak affinity chromatography, high-performance affinity chromatography, on-flow activity assays, and high-performance liquid affinity chromatography. On the other hand, in the off-line approaches, the binding event occurs outside the liquid chromatography system and may encompass affinity and activity-based assays in which the biological target is immobilized on magnetic particles or monolithic silica, among others. After the incubation step, the supernatant or the eluate from the binding assay is analyzed by liquid chromatography coupled to various detectors. Regardless of the selected bioanalytical approach, the use of solid supported proteins has significantly contributed to the development of automated and reliable screening methods that enable ligands to be isolated and characterized in complex matrixes without purification, thereby reducing costs and avoiding time-laborious steps. This review provides a critical overview of recently developed assays.
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Affiliation(s)
- Marcela Cristina de Moraes
- Laboratório SINCROMA, Instituto de Química, Departamento de Química Orgânica, Universidade Federal Fluminense, Niterói, Brazil
| | - Carmen Lucia Cardoso
- Grupo de Cromatografia de Bioafinidade e Produtos Naturais, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Quezia Bezerra Cass
- Separare, Departamento de Química, Universidade Federal de São Carlos, São Carlos, Brazil
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Petersen MJ, de Cássia Lemos Lima R, Kjaerulff L, Staerk D. Immobilized α-amylase magnetic beads for ligand fishing: Proof of concept and identification of α-amylase inhibitors in Ginkgo biloba. PHYTOCHEMISTRY 2019; 164:94-101. [PMID: 31103779 DOI: 10.1016/j.phytochem.2019.04.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Diabetes mellitus is a widespread metabolic disorder that affects millions of people around the world. The disease is a major burden on both economic and social levels, and there is a need for improved drugs with fewer side effects in the management of the disease. Current methods for isolation of anti-diabetic lead compounds from complex mixtures suffer from low resolution and sensitivity, and there is a need for improved alternatives. In this work, magnetic ligand fishing combined with high-performance liquid chromatography - photodiode-array detection - high-resolution mass spectrometry - solid-phase extraction - nuclear magnetic resonance spectroscopy (HPLC-PDA-HRMS-SPE-NMR) was developed and validated, with the aim of accelerating discovery of natural products targeting α-amylase. The enzyme was successfully immobilized onto magnetic beads and retained its catalytic activity for a period of 75 days, and the specificity of this method was successfully validated by testing the N-terminus coupled α-amylase immobilized magnetic beads on an artificial mixture. A proof of concept experiment, using a crude ethyl acetate extract of Ginkgo biloba leaves, proved that it was possible to fish out four α-amylase ligands. HPLC-PDA-HRMS-SPE-NMR analysis confirmed the presence of bilobetin, isoginkgetin, ginkgetin and sciadopitysin in the solutions resulting from α-amylase ligand fishing with Ginkgo biloba. IC50 curves revealed a reversed relationship between concentration of sciadopitysin and inhibition of α-amylase activity, suggesting that this compound activated the enzyme instead of inhibiting it.
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Affiliation(s)
- Malene J Petersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Rita de Cássia Lemos Lima
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Louise Kjaerulff
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
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Gianni E, Avgoustakis K, Pšenička M, Pospíšil M, Papoulis D. Halloysite nanotubes as carriers for irinotecan: Synthesis and characterization by experimental and molecular simulation methods. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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31
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Zhang H, Wu ZY, Yang YY, Yang FQ, Li SP. Recent applications of immobilized biomaterials in herbal analysis. J Chromatogr A 2019; 1603:216-230. [PMID: 31277949 DOI: 10.1016/j.chroma.2019.06.059] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/22/2019] [Accepted: 06/27/2019] [Indexed: 12/17/2022]
Abstract
Immobilization of biomaterials developed rapidly due to the great promise in improving their stability, activity and even selectivity. In this review, the immobilization strategies of biomaterials, including physical adsorption, encapsulation, covalent attachment, cross-linking and affinity linkage, were briefly introduced. Then, the major emphasis was focused on the reported various types of immobilized biomaterials, including proteins, enzymes, cell membrane and artificial membrane, living cells, carbohydrates and bacteria, used in the herbal analysis for bioactive compound screening, drug-target interaction evaluation and chiral separation. In addition, a series of carrier materials applied in biomaterials immobilization, such as magnetic nanoparticles, metal-organic frameworks, silica capillary column, cellulose filter paper, cell membrane chromatography, immobilized artificial membrane chromatography and hollow fiber, were also discussed. Perspectives on further applications of immobilized biomaterials in herbal analysis were finally presented.
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Affiliation(s)
- Hao Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China
| | - Zhao-Yu Wu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China
| | - Yi-Yao Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, PR China.
| | - Shao-Ping Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, PR China.
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32
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Zhang Y, Wang Q, Liu R, Zhou H, Crommen J, Moaddel R, Jiang Z, Zhang T. Rapid screening and identification of monoamine oxidase-A inhibitors from Corydalis Rhizome using enzyme-immobilized magnetic beads based method. J Chromatogr A 2019; 1592:1-8. [DOI: 10.1016/j.chroma.2019.01.062] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/19/2019] [Accepted: 01/23/2019] [Indexed: 01/27/2023]
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33
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Xu L, Tang C, Li X, Li X, Yang H, Mao R, He J, Li W, Liu J, Li Y, Shi S, Xiao X, Wang X. Ligand fishing with cellular membrane-coated cellulose filter paper: a new method for screening of potential active compounds from natural products. Anal Bioanal Chem 2019; 411:1989-2000. [PMID: 30798339 DOI: 10.1007/s00216-019-01662-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/25/2019] [Accepted: 02/01/2019] [Indexed: 01/24/2023]
Abstract
Ligand fishing is a widely used approach for screening active compounds from natural products. Recently, cell membrane (CM) as affinity ligand has been applied in ligand fishing, including cell membrane chromatography (CMC) and CM-coated magnetic bead. However, these methods possess many weaknesses, including complicated preparation processes and time-consuming operation. In this study, cheap and easily available cellulose filter paper (CFP) was selected as carrier of CM and used to fabricate a novel CM-coated CFP (CMCFP) for the first time. The type of CFP was optimized according to the amount of immobilized protein, and the immobilization of CM onto CFP by the insertion and self-fusion process was verified by confocal imaging. The CMCFP exhibited good selectivity and stability and was used for fishing potentially active compounds from extracts of Angelica dahurica. Three potentially active compounds, including bergapten, pabulenol, and imperatorin, were fished out and identified. The traditional Chinese medicine systems pharmacology database and analysis platform was used to build an active compound-target protein network, and accordingly, the gamma-aminobutyric acid receptor subunit alpha-1 (GABRA1) was deduced as potential target of CM for the active compounds of Angelica dahurica. Molecular docking was performed to evaluate the interaction between active compounds and GABRA1, and bergapten was speculated as a new potentially active compound. Compared with other methods, the fishing assay based on CMCFP was more effective, simpler, and cheaper.
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Affiliation(s)
- Liang Xu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China.,Tianjin Medical College, Tianjin, 300222, China
| | - Cheng Tang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China
| | - Xin Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China
| | - Xiaofan Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China
| | - Huiping Yang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China
| | - Ruizhi Mao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China.,People's Hospital of Tongliangqu, Chongqing, 402560, China
| | - Jiahui He
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, 61 Yuquan Road, Nankai District, Tianjin, 300193, China.,Acchrom Technologies Co., Lid., Beijing, 100020, China
| | - Wanqing Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China
| | - Jiyang Liu
- Tianjin Medical College, Tianjin, 300222, China
| | - Yalong Li
- Tianjin Medical College, Tianjin, 300222, China
| | - Shuobo Shi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Chaoyang District, Beijing, 100029, China
| | - Xuefeng Xiao
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, 61 Yuquan Road, Nankai District, Tianjin, 300193, China.
| | - Xianhua Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnosis, School of Pharmacy, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300072, China.
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34
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Fu Y, Luo J, Qin J, Yang M. Screening techniques for the identification of bioactive compounds in natural products. J Pharm Biomed Anal 2019; 168:189-200. [PMID: 30825802 DOI: 10.1016/j.jpba.2019.02.027] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 01/06/2023]
Abstract
Natural products (NPs) have a long history of clinical use and are rich source of bioactive compounds. The development of tools and techniques for identifying and analyzing NP bioactive compounds to ensure their quality and discover new drugs is thus very important and still in demand. Screening techniques have proven highly useful for screening and analyzing active components in complex mixtures, which rely on cell culture, dialysis, ultrafiltration, chromatographic methods and target molecule immobilization, using biological targets to identify the active compounds. The recent progress in biological screening techniques in the field of natural products is reviewed here. This includes a review on the strategy and application of the screening methods, their detailed description and discussion of their existing limitations of the different models along with prospective in future development of screening techniques.
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Affiliation(s)
- Yanwei Fu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China
| | - Jiaoyang Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China
| | - Jiaan Qin
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China
| | - Meihua Yang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100193, China.
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35
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Liu T, Liu R, Zhu L, Zou X, Guan H, Xu Z. Development of a UHPLC-MS method for inhibitor screening against α-L-1,3-fucosidase. Anal Bioanal Chem 2019; 411:1467-1477. [PMID: 30706074 DOI: 10.1007/s00216-019-01575-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/27/2018] [Accepted: 01/04/2019] [Indexed: 10/27/2022]
Abstract
α-L-Fucosidase (AFU) is a promising therapeutic target for the treatment of inflammation, cancer, cystic fibrosis, and fucosidosis. Some of the existing analytical methods for the assessment of AFU activity are lacking in sensitivity and selectivity, since most of them are based on spectrofluorimetric methods. More recently, mass spectrometry (MS) has evolved as a key technology for enzyme assays and inhibitor screening as it enables accurate monitoring of the conversion of substrate to product in enzymatic reactions. In this study, UHPLC-MS has been utilized to develop a simple, sensitive, and accurate assay for enzyme kinetics and inhibition studies of AFU3, a member of the AFU family. A reported method for analyzing saccharide involving a porous graphitic carbon column, combined with reduction by NaBH4/CH3OH, was used to improve sensitivity. The conversion of saccharide into alditol could reach nearly 100% in the NaBH4 reduction reaction. In addition, the bioanalytical quantitative screening method was validated according to US-FDA guidance, including selectivity, linearity, precision, accuracy, stability, and matrix effect. The developed method displayed a good accuracy, high sensitivity (LOD = 0.05 mg L-1), and good reproducibility (RSD < 15%). The assay accurately measured an IC50 value of 0.40 μM for the known AFU inhibitor, deoxyfuconojirimycin, which was consistent with results reported in the literature. Further validation of the assay was achieved through the determination of a high Z'-factor value of 0.89. The assay was applied to screen a marine-derived chemical library against AFU3, which revealed two marine-oriented pyrimidine alkaloids as potential AFU3 inhibitors. Graphical abstract.
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Affiliation(s)
- Tangrong Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, Shandong, China
| | - Ruonan Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, Shandong, China
| | - Li Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, Shandong, China
| | - Xuan Zou
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, Shandong, China
| | - Huashi Guan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, Shandong, China.,Marine Biomedical Research Institute of Qingdao, Qingdao, 266071, Shandong, China
| | - Zhe Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, Shandong, China. .,Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, Shandong, China. .,Marine Biomedical Research Institute of Qingdao, Qingdao, 266071, Shandong, China.
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36
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Guo J, Lin H, Wang J, Lin Y, Zhang T, Jiang Z. Recent advances in bio-affinity chromatography for screening bioactive compounds from natural products. J Pharm Biomed Anal 2019; 165:182-197. [DOI: 10.1016/j.jpba.2018.12.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 12/01/2018] [Accepted: 12/07/2018] [Indexed: 01/02/2023]
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37
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Zhang L, Tang W, Ma T, Zhou L, Hui C, Wang X, Wang P, Zhang C, Chen C. Laccase-immobilized tannic acid-mediated surface modification of halloysite nanotubes for efficient bisphenol-A degradation. RSC Adv 2019; 9:38935-38942. [PMID: 35540689 PMCID: PMC9075946 DOI: 10.1039/c9ra06171a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 11/02/2019] [Indexed: 11/21/2022] Open
Abstract
Halloysite nanotubes (HNTs) have been pursued as promising carriers for enzyme immobilization, but the lack of functional groups severely limits their applications. Herein, we reported a simple tannic acid (TA)-mediated surface modification strategy for the fabrication of HNT-based efficient enzyme immobilization supports. Particularly, TA was first self-polymerized and deposited onto the surface of HNTs to form a thin active film via a mussel-inspired method, and the model enzyme laccase was directly conjugated via the Michael addition and/or Schiff base condensation between quinone groups on poly(tannic acid) layer surfaces and exposed amine groups on laccase surfaces. Under the optimum conditions, this newly fabricated support retained good enzyme-loading and activity recovery properties with 197.9 mg protein per gram of support and 55.4% of activity recovery being achieved. In addition, this immobilized laccase was less influenced by pH, temperature, and inhibitor changes and exhibited higher storage stability than free laccases as more than 70% of initial activity was retained by the immobilized laccase, while less than 30% was retained for free laccase after one-month storage at 4 °C. Finally, a higher bisphenol-A (BPA) removal efficiency and more reuse cycles were demonstrated for immobilized laccases. As a result, this TA-mediated surface modification is a simple and green method for biological macromolecule immobilization on HNTs in one step. We report a simple tannic acid (TA)-mediated surface modification strategy for the fabrication of HNT-based efficient enzyme immobilization supports.![]()
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Affiliation(s)
- Liting Zhang
- Zhejiang Province Key Laboratory of Recycling and Eco-treatment of Waste Biomass
- Zhejiang University of Science and Technology
- Hangzhou
- China
- State Key Laboratory of Bioreactor Engineering
| | - Wen Tang
- State Key Laboratory of Bioreactor Engineering
- New World Institute of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
- People's Republic of China
| | - Tonghao Ma
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- School of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
| | - Lina Zhou
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- School of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
| | - Chenggong Hui
- Zhejiang Province Key Laboratory of Recycling and Eco-treatment of Waste Biomass
- Zhejiang University of Science and Technology
- Hangzhou
- China
| | - Xiaoli Wang
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- School of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
| | - Ping Wang
- Department of Bioproducts and Biosystems Engineering
- University of Minnesota
- St Paul
- USA
| | - Changai Zhang
- Zhejiang Province Key Laboratory of Recycling and Eco-treatment of Waste Biomass
- Zhejiang University of Science and Technology
- Hangzhou
- China
| | - Chao Chen
- State Key Laboratory of Bioreactor Engineering
- Biomedical Nanotechnology Center
- School of Biotechnology
- East China University of Science and Technology
- Shanghai 200237
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38
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Preparation and characterization of porous starch reinforced with halloysite nanotube by solvent exchange method. Int J Biol Macromol 2018; 123:682-690. [PMID: 30447374 DOI: 10.1016/j.ijbiomac.2018.11.095] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 10/19/2018] [Accepted: 11/11/2018] [Indexed: 12/18/2022]
Abstract
The aim of this study was to improvement of adsorption capacity of porous starch (PS) by incorporation of halloysite nanotube (HNT). PS/HNT carrier was synthesized through the solvent exchange method. Various fabrication approaches for PS were introduced and different ethanol ratio (40, 60, 80, 100%), HNT concentration (0, 0.1, 0.2, 0.3, 0.4 and 0.5 mg/mL) and drying method (oven, freeze dryer and microwave) were applied. The results indicated that high ratio of ethanol created larger pores and also the best results were obtained from freeze-dried samples (p < 0.05). Incorporation of HNT could further improve the adsorption capacity. However, the best oil and water adsorption capacity were related to PS alone. The nitrogen adsorption-desorption measurement and scanning electron microscopy elucidated the porous structure of samples. The experimental data were fitted successfully by the Langmuir model rather than Freundlich isotherm. Also PS/HNT had higher apparent density and more negative zeta potential rather than PS. However, the DSC results showed the similar thermal patterns for PS and PS/HNT.
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39
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Jiang J, Yu Y, Wang L, Li J, Ling J, Li Y, Duan G. Enzyme immobilized on polyamidoamine-coated magnetic microspheres for α-glucosidase inhibitors screening from Radix Paeoniae Rubra extracts accompanied with molecular modeling. Talanta 2018; 195:127-136. [PMID: 30625522 DOI: 10.1016/j.talanta.2018.11.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/29/2018] [Accepted: 11/04/2018] [Indexed: 11/25/2022]
Abstract
In this study, a method for direct screening and identification of α-glucosidase inhibitors (AGIs) from extracts of natural products was established based on polyamidoamine (PAMAM) coated magnetic microspheres. A facile route to synthesize the magnetic PAMAM was employed and α-glucosidase was successfully covalently attached to its surface through cross linking of glutaraldehyde. Using the enzyme-loaded magnetic microspheres, potential inhibitors were fished out from crude extracts directly, followed by structure confirmation. The inhibitory activities of the screened components were further investigated by the enzyme-loaded magnetic microspheres. The Fe3O4 @PAMAM@α-Glu microspheres displayed favorable dispersibility, fast magnetic separation, large enzyme binding amount (42.9 μg•mg-1) and high enzyme activity. Moreover, the α-glucosidase on the surface of PAMAM coating maintained high storage stability and remarkable reusability. Taking advantage of specific interaction of the α-glucosidase with AGIs, the materials could selectively capture a known AGI (+)-catechin under the interference of an inactive compound salicylic acid, with a binding capacity as high as 15.4%. Additionally, using the Fe3O4 @PAMAM@α-Glu microspheres in the inhibition assay, the enzymatic reaction could be stopped by magnetic separation instead of the traditional addition of Na2CO3 solution, which not only eliminated the disturbance of termination reagent to the results, but also reused the immobilized α-glucosidase. The screening and inhibitory activity verification of potential ligands in Radix Paeoniae Rubra ("Chi-shao" in Chinese) extracts were achieved by using Fe3O4 @PAMAM@α-Glu microspheres, demonstrating practical applicability of our method. Therefore, the magnetic PAMAM-based screening approach could be a feasible and alternative strategy for discovering enzyme inhibitors from natural product extracts.
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Affiliation(s)
- Jiebing Jiang
- Fudan University Affiliated Pudong Medical Center & Pharmaceutical Analysis Department, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yingjia Yu
- Fudan University Affiliated Pudong Medical Center & Pharmaceutical Analysis Department, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Liping Wang
- Jing'an District Central Hospital, Fudan University, 259 Xikang Road, Shanghai 200040, China
| | - Jiajia Li
- Fudan University Affiliated Pudong Medical Center & Pharmaceutical Analysis Department, School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jin Ling
- Department of Biochemical Drugs and Biological Products, Shanghai Institute for Food and Drug Control, No.1500 Zhangheng Road, Pudong New District, Shanghai 201203, China
| | - Yan Li
- Fudan University Affiliated Pudong Medical Center & Pharmaceutical Analysis Department, School of Pharmacy, Fudan University, Shanghai 201203, China.
| | - Gengli Duan
- Fudan University Affiliated Pudong Medical Center & Pharmaceutical Analysis Department, School of Pharmacy, Fudan University, Shanghai 201203, China.
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40
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Wang L, Zhao Y, Zhang Y, Zhang T, Kool J, Somsen GW, Wang Q, Jiang Z. Online screening of acetylcholinesterase inhibitors in natural products using monolith-based immobilized capillary enzyme reactors combined with liquid chromatography-mass spectrometry. J Chromatogr A 2018; 1563:135-143. [DOI: 10.1016/j.chroma.2018.05.069] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/26/2018] [Accepted: 05/29/2018] [Indexed: 12/18/2022]
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41
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Wu SQ, Song HP, Li B, Liu RZ, Yang H, He L, Li P. A fast and accurate method for the identification of peroxidase inhibitors from Radix Salvia Miltiorrhizae by on-flow biochemical assay coupled with LC/Q-TOF-MS: comparison with ultrafiltration-based affinity selection. Anal Bioanal Chem 2018; 410:4311-4322. [DOI: 10.1007/s00216-018-1081-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 03/21/2018] [Accepted: 04/12/2018] [Indexed: 01/07/2023]
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42
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Bu Y, Hu Q, Xu K, Xie X, Wang S. Improved cell membrane bioaffinity sample pretreatment technique with enhanced stability for screening of potential allergenic components from traditional Chinese medicine injections. J Mater Chem B 2018; 6:624-633. [DOI: 10.1039/c7tb02768k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aiming at improving reliability in conventional cell membrane chromatography, an improved bioaffinity sample pretreatment technique with enhanced stability was developed to fast screen and extract potential allergenic components from traditional Chinese medicine injections.
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Affiliation(s)
- Yusi Bu
- School of Pharmacy
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710061
- China
| | - Qi Hu
- School of Pharmacy
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710061
- China
| | - Ke Xu
- School of Pharmacy
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710061
- China
| | - Xiaoyu Xie
- School of Pharmacy
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710061
- China
| | - Sicen Wang
- School of Pharmacy
- Health Science Center
- Xi’an Jiaotong University
- Xi’an 710061
- China
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43
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44
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Zhuo R, Liu H, Liu N, Wang Y. Ligand Fishing: A Remarkable Strategy for Discovering Bioactive Compounds from Complex Mixture of Natural Products. Molecules 2016; 21:molecules21111516. [PMID: 27845727 PMCID: PMC6274472 DOI: 10.3390/molecules21111516] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/01/2016] [Accepted: 11/06/2016] [Indexed: 12/16/2022] Open
Abstract
Identification of active compounds from natural products is a critical and challenging task in drug discovery pipelines. Besides commonly used bio-guided screening approaches, affinity selection strategy coupled with liquid chromatography or mass spectrometry, known as ligand fishing, has been gaining increasing interest from researchers. In this review, we summarized this emerging strategy and categorized those methods as off-line or on-line mode according to their features. The separation principles of ligand fishing were introduced based on distinct analytical techniques, including biochromatography, capillary electrophoresis, ultrafiltration, equilibrium dialysis, microdialysis, and magnetic beads. The applications of ligand fishing approaches in the discovery of lead compounds were reviewed. Most of ligand fishing methods display specificity, high efficiency, and require less sample pretreatment, which makes them especially suitable for screening active compounds from complex mixtures of natural products. We also summarized the applications of ligand fishing in the modernization of Traditional Chinese Medicine (TCM), and propose some perspectives of this remarkable technique.
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Affiliation(s)
- Rongjie Zhuo
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Hao Liu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Ningning Liu
- TCM Research Center, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
| | - Yi Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
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45
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Zeng Q, Jia YW, Xu PL, Xiao MW, Liu YM, Peng SL, Liao X. Quick and selective extraction ofZ-ligustilide fromAngelica sinensisusing magnetic multiwalled carbon nanotubes. J Sep Sci 2015; 38:4269-75. [DOI: 10.1002/jssc.201500862] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 09/14/2015] [Accepted: 10/12/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Qiong Zeng
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
- Shanghai Institute of Technology; Shanghai China
| | - Yan-Wei Jia
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
- Shanghai Institute of Technology; Shanghai China
| | - Pei-Li Xu
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
- Department of Chemistry and Biochemistry; Jackson State University; Jackson MS USA
| | - Meng-Wei Xiao
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
- Shanghai Institute of Technology; Shanghai China
| | - Yi-Ming Liu
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
- University of Chinese Academy of Sciences; Beijing China
| | - Shu-Lin Peng
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
| | - Xun Liao
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu China
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