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Liu H, Wang J, Yang S, Li Z, Song M, Zhang X, Crommen J, Jiang Z, Zhang T. A magnetic beads-based ligand fishing method for rapid discovery of monoterpene indoles as monoamine oxidase A inhibitors from Hunteria zeylanica. J Chromatogr A 2024; 1722:464896. [PMID: 38631224 DOI: 10.1016/j.chroma.2024.464896] [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: 02/23/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
In this study, a novel magnetic bead-based ligand fishing method was developed for rapid discovery of monoterpene indoles as monoamine oxidase A inhibitors from natural products. In order to improve the screening efficiency, two different magnetic beads, i.e. amine and carboxyl terminated magnetic beads, were comprehensively compared in terms of their ability to immobilize monoamine oxidase A (MAOA), biocatalytic activity and specific adsorption rates for affinity ligands. Carboxyl terminated magnetic beads performed better for MAOA immobilization and demonstrated superior performance in ligand fishing. The MAOA immobilized magnetic beads were applied to screen novel monoamine oxidase inhibitors in an alkaloid-rich plant, Hunteria zeylanica. Twelve MAOA affinity ligands were screened out, and ten of them were identified as monoterpene indole alkaloids by HPLC-Obitrap-MS/MS. Among them, six ligands, namely geissoschizol, vobasinol, yohimbol, dihydrocorynanthenol, eburnamine and (+)-isoeburnamine which exhibited inhibitory activity against MAOA with low IC50 values. To further explore their inhibitory mechanism, enzyme kinetic analysis and molecular docking studies were conducted.
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Affiliation(s)
- Huaixin Liu
- Institute of Pharmaceutical Analysis, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jincai Wang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Sirui Yang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Ziwei Li
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, NMPA Key Laboratory for Quality Evaluation of TCM, Jinan University, Guangzhou 510632, China
| | - Min Song
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, NMPA Key Laboratory for Quality Evaluation of TCM, Jinan University, Guangzhou 510632, China
| | - Xiaoqi Zhang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, NMPA Key Laboratory for Quality Evaluation of TCM, Jinan University, Guangzhou 510632, China
| | - Jacques Crommen
- Laboratory of Analytical Pharmaceutical Chemistry, Department of Pharmaceutical Sciences, CIRM, University of Liege, CHU B36, B-4000, Liege, Belgium
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China; State Key Laboratory of Bioactive Molecules and Druggability Assessment, NMPA Key Laboratory for Quality Evaluation of TCM, Jinan University, Guangzhou 510632, China.
| | - Tingting Zhang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
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Fan Y, Wang J, Jian J, Wen Y, Li J, Tian H, Crommen J, Bi W, Zhang T, Jiang Z. High-throughput discovery of highly selective reversible hMAO-B inhibitors based on at-line nanofractionation. Acta Pharm Sin B 2024; 14:1772-1786. [PMID: 38572096 PMCID: PMC10985270 DOI: 10.1016/j.apsb.2024.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/11/2024] [Accepted: 01/29/2024] [Indexed: 04/05/2024] Open
Abstract
Human monoamine oxidase B (hMAO-B) has emerged as a pivotal therapeutic target for Parkinson's disease. Due to adverse effects and shortage of commercial drugs, there is a need for novel, highly selective, and reversible hMAO-B inhibitors with good blood-brain barrier permeability. In this study, a high-throughput at-line nanofractionation screening platform was established with extracts from Chuanxiong Rhizoma, which resulted in the discovery of 75 active compounds, including phenolic acids, volatile oils, and phthalides, two of which were highly selective novel natural phthalide hMAO-B inhibitors that were potent, selective, reversible and had good blood‒brain permeability. Molecular docking and molecular dynamics simulations elucidated the inhibition mechanism. Sedanolide (IC50 = 103 nmol/L; SI = 645) and neocnidilide (IC50 = 131 nmol/L; SI = 207) demonstrated their excellent potential as hMAO-B inhibitors. They offset the limitations of deactivating enzymes associated with irreversible hMAO-B inhibitors such as rasagiline. In SH-SY5Y cell assays, sedanolide (EC50 = 0.962 μmol/L) and neocnidilide (EC50 = 1.161 μmol/L) exhibited significant neuroprotective effects, comparable to the positive drugs rasagiline (EC50 = 0.896 μmol/L) and safinamide (EC50 = 1.079 μmol/L). These findings underscore the potential of sedanolide as a novel natural hMAO-B inhibitor that warrants further development as a promising drug candidate.
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Affiliation(s)
- Yu Fan
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jincai Wang
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jingyi Jian
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
- KU Leuven-University of Leuven, Pharmaceutical Analysis, Department of Pharmaceutical and Pharmacological Sciences, Leuven 3000, Belgium
| | - Yalei Wen
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jiahao Li
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Hao Tian
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jacques Crommen
- Laboratory of Analytical Pharmaceutical Chemistry, Department of Pharmaceutical Sciences, CIRM, University of Liege, Liege B-4000, Belgium
| | - Wei Bi
- Department of Neurology, the First Affiliated Hospital of Jinan University/Clinical Neuroscience Institute, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Tingting Zhang
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China/College of Pharmacy, Jinan University, Guangzhou 510632, China
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Jin H, Cui D, Fan Y, Li G, Zhong Z, Wang Y. Recent advances in bioaffinity strategies for preclinical and clinical drug discovery: Screening natural products, small molecules and antibodies. Drug Discov Today 2024; 29:103885. [PMID: 38278476 DOI: 10.1016/j.drudis.2024.103885] [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: 11/19/2023] [Revised: 12/26/2023] [Accepted: 01/11/2024] [Indexed: 01/28/2024]
Abstract
Bioaffinity drug screening strategies have gained popularity in preclinical and clinical drug discovery for natural products, small molecules and antibodies owing to their superior selectivity, the large number of compounds to be screened and their ability to minimize the time and expenses of the drug discovery process. This paper provides a systematic summary of the principles of commonly used bioaffinity-based screening methods, elaborates on the success of bioaffinity in clinical drug development and summarizes the active compounds, preclinical drugs and marketed drugs obtained through affinity screening methods. Owing to the high demand for new drugs, bioaffinity-guided screening techniques will play a greater part in clinical drug development.
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Affiliation(s)
- Haochun Jin
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Dianxin Cui
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Yu Fan
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China
| | - Guodong Li
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China.
| | - Zhangfeng Zhong
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China.
| | - Yitao Wang
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China.
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Slagboom J, Lewis AH, Schouten WM, van Haperen R, Veltman M, Bittenbinder MA, Vonk FJ, Casewell NR, Grosveld F, Drabek D, Kool J. High throughput identification of human monoclonal antibodies and heavy-chain-only antibodies to treat snakebite. Toxicon X 2024; 21:100185. [PMID: 38425752 PMCID: PMC10901844 DOI: 10.1016/j.toxcx.2024.100185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 12/12/2023] [Accepted: 01/31/2024] [Indexed: 03/02/2024] Open
Abstract
Snakebite envenoming is a priority Neglected Tropical Disease that causes an estimated 81,000-135,000 fatalities each year. The development of a new generation of safer, affordable, and accessible antivenom therapies is urgently needed. With this goal in mind, rigorous characterisation of the specific toxins in snake venom is key to generating novel therapies for snakebite. Monoclonal antibodies directed against venom toxins are emerging as potentially strong candidates in the development of new snakebite diagnostics and treatment. Venoms comprise many different toxins of which several are responsible for their pathological effects. Due to the large variability of venoms within and between species, formulations of combinations of human antibodies are proposed as the next generation antivenoms. Here a high-throughput screening method employing antibody-based ligand fishing of venom toxins in 384 filter-well plate format has been developed to determine the antibody target/s The approach uses Protein G beads for antibody capture followed by exposure to a full venom or purified toxins to bind their respective ligand toxin(s). This is followed by a washing/centrifugation step to remove non-binding toxins and an in-well tryptic digest. Finally, peptides from each well are analysed by nanoLC-MS/MS and subsequent Mascot database searching to identify the bound toxin/s for each antibody under investigation. The approach was successfully validated to rapidly screen antibodies sourced from hybridomas, derived from venom-immunised mice expressing either regular human antibodies or heavy-chain-only human antibodies (HCAbs).
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Affiliation(s)
- Julien Slagboom
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, the Netherlands
| | - Abigail H. Lewis
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, the Netherlands
| | - Wietse M. Schouten
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, the Netherlands
| | - Rien van Haperen
- Department of Cell Biology and Genetics, Faculty of Medicine, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
- Harbour BioMed, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
| | - Mieke Veltman
- Department of Cell Biology and Genetics, Faculty of Medicine, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
- Harbour BioMed, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
| | - Mátyás A. Bittenbinder
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, the Netherlands
- Naturalis Biodiversity Center, 2333 CR, Leiden, the Netherlands
| | - Freek J. Vonk
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, the Netherlands
- Naturalis Biodiversity Center, 2333 CR, Leiden, the Netherlands
| | - Nicholas R. Casewell
- Centre for Snakebite Research and Interventions, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK
| | - Frank Grosveld
- Department of Cell Biology and Genetics, Faculty of Medicine, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
- Harbour BioMed, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
| | - Dubravka Drabek
- Department of Cell Biology and Genetics, Faculty of Medicine, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
- Harbour BioMed, Erasmus Medical Center Rotterdam, 3000 DR, Rotterdam, the Netherlands
| | - Jeroen Kool
- Amsterdam Institute of Molecular and Life Sciences, Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, the Netherlands
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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: 0] [Impact Index Per Article: 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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Screening of xanthine oxidase inhibitory peptides by ligand fishing and molecular docking technology. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102152] [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]
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Qing LS, Wang TT, Luo HY, Du JL, Wang RY, Luo P. Microfluidic strategies for natural products in drug discovery: Current status and future perspectives. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Jian J, Yuan J, Fan Y, Wang J, Zhang T, Kool J, Jiang Z. High-Resolution Bioassay Profiling with Complemented Sensitivity and Resolution for Pancreatic Lipase Inhibitor Screening. Molecules 2022; 27:molecules27206923. [PMID: 36296516 PMCID: PMC9607159 DOI: 10.3390/molecules27206923] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
How to rapidly and accurately screen bioactive components from complex natural products remains a major challenge. In this study, a screening platform for pancreatic lipase (PL) inhibitors was established by combining magnetic beads-based ligand fishing and high-resolution bioassay profiling. This platform was well validated using a mixture of standard compounds, i.e., (-)- epigallocatechin gallate (EGCG), luteolin and schisandrin. The dose-effect relationship of high-resolution bioassay profiling was demonstrated by the standard mixture with different concentrations for each compound. The screening of PL inhibitors from green tea extract at the concentrations of 0.2, 0.5 and 1.0 mg/mL by independent high-resolution bioassay profiling was performed. After sample pre-treatment by ligand fishing, green tea extract at the concentration of 0.2 mg/mL was specifically enriched and simplified, and consequently screened through the high-resolution bioassay profiling. As a result, three PL inhibitors, i.e., EGCG, (-)-Gallocatechin gallate (GCG) and (-)-Epicatechin gallate (ECG), were rapidly identified from the complex matrix. The established platform proved to be capable of enriching affinity binders and eliminating nonbinders in sample pre-treatment by ligand fishing, which overcame the technical challenges of high-resolution bioassay profiling in the aspects of sensitivity and resolution. Meanwhile, the high-resolution bioassay profiling possesses the ability of direct bioactive assessment, parallel structural analysis and identification after separation. The established platform allowed more accurate and rapid screening of PL inhibitors, which greatly facilitated natural product-based drug screening.
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Affiliation(s)
- Jingyi Jian
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jiaming Yuan
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Yu Fan
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jincai Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Tingting Zhang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jeroen Kool
- Division of BioAnalytical Chemistry, Amsterdam Institute of Molecules, Medicines and Systems, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Zhengjin Jiang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
- Correspondence:
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Xu P, Wang X, Lin T, Shao Q, Peng J, Chu C, Tong S. A Strategy for Pinpointing Natural Bioactive Components Using Two-Dimensional Bioassay Profilings Combined with Comprehensive Two-Dimensional Countercurrent Chromatography × High-Performance Liquid Chromatography. Anal Chem 2022; 94:12715-12722. [PMID: 36076186 DOI: 10.1021/acs.analchem.2c02196] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Inspired by the interpretation of two-dimensional (2D) nuclear magnetic resonance spectra, an efficient strategy was proposed for pinpointing bioactive components from complex natural products. An off-line comprehensive countercurrent chromatography (CCC) × high-performance liquid chromatography (HPLC) was employed to achieve a 2D chemical chromatogram, and 2D bioassay profilings were obtained from bioassays of the eluent of the first dimension (1D) CCC and the eluent of the second dimension (2D) HPLC. Then 2D chemical chromatograms and 2D bioassay profilings were matched for pinpointing bioactive natural components from complex matrices. Thus, bioactive components in a complex matrix could be efficiently analyzed, separated, and bioactivity-determined. This experimental scheme was successfully demonstrated with a traditional medicinal herb Polygonum cuspidatum Sieb. et Zucc. The feasibility of this 2D strategy was verified with tyrosinase inhibition assay, α-glucosidase inhibition assay, DPPH radical scavenging assay, and ABTS•+ decolorization assay. Eight natural inhibitors were successfully pinpointed and identified from P. cuspidatum. Both pieceid-2″-O-gallate (10) and vanicoside B (20) were screened and identified as natural tyrosinase inhibitors for the first time. Meanwhile, vanicoside B (20) was also found as the strongest α-glucosidase inhibitor among all the isolated components. Most of the compounds exhibited much higher radical scavenging activities. Compared with traditional methodology based on one-dimensional chromatographic separation, the present 2D strategy would be more precise, efficient, and convenient to screen and separate bioactive compounds from complex matrices.
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Affiliation(s)
- Ping Xu
- College of Pharmaceutical Science, Zhejiang University of Technology, 310032 Hangzhou, China
| | - Xiang Wang
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 210009 Nanjing, China
| | - Tingting Lin
- College of Pharmaceutical Science, Zhejiang University of Technology, 310032 Hangzhou, China
| | - Qingsong Shao
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, 311300 Hangzhou, China
| | - Jianyun Peng
- Department of Nephrology, The Sixth Affiliated Hospital of Wenzhou Medical University Lishui People's Hospital, 323000 Lishui, China
| | - Chu Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, 310032 Hangzhou, China
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, 310032 Hangzhou, China
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10
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Jiao P, Li B, Zhang F, Tang C. Chitosan-based matrix solid-phase dispersion extraction assisted cell membrane magnetic bead ligand-affinity assay for screening active compounds from Fructus Cnidii. J Sep Sci 2022; 45:3725-3734. [PMID: 35906749 DOI: 10.1002/jssc.202200286] [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: 04/07/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 11/09/2022]
Abstract
Cell membrane ligand-affinity assay is a useful tool for screening the active compounds from natural products. However, in traditional cell membrane ligand-affinity assays, natural products need to be refluxed, before being analyzed. This process consumes considerable time and energy and cannot be used for screening natural products that contain thermally unstable compounds. Therefore, an efficient analytical method is required. In this study, chitosan-based matrix solid-phase dispersion extraction was combined with cell membrane magnetic bead ligand-affinity assay to form a novel method for identifying the active compounds in Fructus Cnidii such as osthole and imperatorin. When compared with traditional cell membrane ligand-affinity assays, this assay requires less energy, extraction time (7 min), solvent volume (1.2 mL) and fewer natural products (40 mg). This indicates that the chitosan-based matrix solid-phase dispersion extraction assisted cell membrane magnetic beads ligand-affinity assay is an alternative analytical method for studying natural products. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Pan Jiao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Bing Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Fan Zhang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
| | - Cheng Tang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin, 300070, China
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11
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Li Q, Yin G, Wang J, Li L, Liang Q, Zhao X, Chen Y, Zheng X, Zhao X. An emerging paradigm to develop analytical methods based on immobilized transmembrane proteins and its applications in drug discovery. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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12
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Maitra U, Stephen C, Ciesla LM. Drug discovery from natural products - Old problems and novel solutions for the treatment of neurodegenerative diseases. J Pharm Biomed Anal 2022; 210:114553. [PMID: 34968995 PMCID: PMC8792363 DOI: 10.1016/j.jpba.2021.114553] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 12/12/2022]
Abstract
The use of natural products has been shown to be a fruitful approach in the discovery of novel pharmaceuticals. In fact, many currently approved drugs originated from compounds that were first identified in nature. Chemical diversity of natural compounds cannot be matched by man-made libraries of chemically synthesized molecules. Many natural compounds interact with and modulate regulatory protein targets and can be considered evolutionarily-optimized drug-like molecules. Despite this, many pharmaceutical companies have reduced or eliminated their natural product discovery programs in the last two decades. Screening natural products for pharmacologically active compounds is a challenging task that requires high resource commitment. Novel approaches at the early stage of the drug discovery pipeline are needed to allow for rapid screening and identification of the most promising molecules. Here, we review the possible evolutionary roots for drug-like characteristics of numerous natural compounds. Since many of these compounds target evolutionarily conserved cellular signaling pathways, we propose novel, early-stage drug discovery approaches to identify drug candidates that can be used for the potential prevention and treatment of neurodegenerative diseases. Invertebrate in vivo animal models of neurodegenerative diseases and innovative tools used within these models are proposed here as a screening funnel to identify new drug candidates and to shuttle these hits into further stages of the drug discovery pipeline.
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Affiliation(s)
- Urmila Maitra
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Cayman Stephen
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA
| | - Lukasz M Ciesla
- Department of Biological Sciences, The University of Alabama, Tuscaloosa, AL 35487, USA.
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13
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Zhang F, Jiang Y, Jiao P, Li S, Tang C. Ligand fishing via a monolithic column coated with white blood cell membranes: A useful technique for screening active compounds in Astractylodes lancea. J Chromatogr A 2021; 1656:462544. [PMID: 34543881 DOI: 10.1016/j.chroma.2021.462544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 01/02/2023]
Abstract
The cell membrane-coated monolithic column (CMMC) ligand fishing assay is an interesting approach set up for the study of natural products (NPs). NPs such as Atractylodes lancea contain many compounds. Traditional methods used to separate compounds and determine active compounds by pharmacological tests are time-consuming and inefficient. Therefore, an alternative method is required to determine active compounds in NPs. Here, white blood cells were broken, and the white blood cell membranes (WBCMs) were immobilized on the surface of a monolithic column to form a CMMC. The column was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and confocal laser scanning microscopy. Combined with gas chromatography/mass spectrometry (GC/MS), the CMMC was used to screen active compounds in Atractylodes lancea. Three potential active compounds including hinesol, β-eudesmol, and 4-phenylbenzaldehyde were discovered. A molecular docking assay demonstrated that these compounds could bind to MD-2 laid on WBCMs. In addition, antiinflammatory effects by the discovered compound in vitro were confirmed, and β-eudesmol showed a concentration-dependent inhibitory effect on the tumor necrosis factor (TNF)-α of a RAW264.7 cell (P < 0.05). The CMMC ligand fishing assay exhibits good selectivity, great speed effects and is a potentially reliable tool for drug discovery in NPs.
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Affiliation(s)
- Fan Zhang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Yuan Jiang
- Department of Pharmacy, Tianjin Union Medical Center, 130, Jieyuan Road, Hongqiao District, Tianjin 300121, China
| | - Pan Jiao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Shaoyong Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
| | - Cheng Tang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics, School of Pharmacy, Tianjin Medical University, Tianjin 300070, China.
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14
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Magnetic particles for enzyme immobilization: A versatile support for ligand screening. J Pharm Biomed Anal 2021; 204:114286. [PMID: 34358814 DOI: 10.1016/j.jpba.2021.114286] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/20/2021] [Accepted: 07/25/2021] [Indexed: 12/12/2022]
Abstract
Enzyme inhibitors represent a substantial fraction of all small molecules currently in clinical use. Therefore, the early stage of drug-discovery process and development efforts are focused on the identification of new enzyme inhibitors through screening assays. The use of immobilized enzymes on solid supports to probe ligand-enzyme interactions have been employed with success not only to identify and characterize but also to isolate new ligands from complex mixtures. Between the available solid supports, magnetic particles have emerged as a promising support for enzyme immobilization due to the high superficial area, easy separation from the reaction medium and versatility. Particularly, the ligand fishing assay has been employed as a very useful tool to rapidly isolate bioactive compounds from complex mixtures, and hence the use of magnetic particles for enzyme immobilization has been widespread. Thus, this review provides a critical overview of the screening assays using immobilized enzymes on magnetic particles between 2006 and 2021.
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15
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Yi Y, Hu J, Ding S, Mei J, Wang X, Zhang Y, Chen J, Ying G. A preparation strategy for protein-oriented immobilized silica magnetic beads with spy chemistry for ligand fishing. J Pharm Anal 2021; 12:415-423. [PMID: 35811616 PMCID: PMC9257657 DOI: 10.1016/j.jpha.2021.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/18/2021] [Accepted: 07/24/2021] [Indexed: 11/29/2022] Open
Abstract
Due to the complexity of bioactive ingredients in biological samples, the screening of target proteins is a complex process. Herein, a feasible strategy for directing protein immobilization on silica magnetic beads for ligand fishing based on SpyTag/SpyCatcher (ST/SC)-mediated anchoring is presented. Carboxyl functional groups on the surface of silica-coated magnetic beads (SMBs) were coupled with SC using the 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride/N-hydroxysulfosuccinimide method, named SC-SMBs. The green fluorescent protein (GFP), as the capturing protein model, was ST-labeled and anchored at a specific orientation onto the surface of SC-SMBs directly from relevant cell lysates via ST/SC self-ligation. The characteristics of the SC-SMBs were studied via electron microscopy, energy dispersive spectroscopy, and Fourier transform infrared spectroscopy. The spontaneity and site-specificity of this unique reaction were confirmed via electrophoresis and fluorescence analyses. Although the alkaline stability of ST-GFP-ligated SC-SMBs was not ideal, the formed isopeptide bond was unbreakable under acidic conditions (0.05 M glycine-HCl buffer, pH 1–6) for 2 h, under 20% ethanol solution within 7 days, and at most temperatures. We, therefore, present a simple and universal strategy for the preparation of diverse protein-functionalized SMBs for ligand fishing, prompting its usage on drug screening and target finding. A preparing strategy of protein immobilized magnetic beads for ligand fishing was established, based on Spy chemistry. The spontaneity and lysine-selectivity of the unique self-ligation reaction were investigated. The stability of the prepared beads under different temperatures, alkaline, acidic, and ethanol solutions was evaluated.
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16
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Tigro H, Kronqvist N, Abelein A, Galan-Acosta L, Chen G, Landreh M, Lyashkov A, Aon MA, Ferrucci L, Shimmo R, Johansson J, Moaddel R. The synthesis and characterization of Bri2 BRICHOS coated magnetic particles and their application to protein fishing: Identification of novel binding proteins. J Pharm Biomed Anal 2021; 198:113996. [PMID: 33690096 PMCID: PMC10644258 DOI: 10.1016/j.jpba.2021.113996] [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] [Received: 01/19/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 10/22/2022]
Abstract
Human integral membrane protein 2B (ITM2B or Bri2) is a member of the BRICHOS family, proteins that efficiently prevent Aβ42 aggregation via a unique mechanism. The identification of novel Bri2 BRICHOS client proteins could help elucidate signaling pathways and determine novel targets to prevent or cure amyloid diseases. To identify Bri2 BRICHOS interacting partners, we carried out a 'protein fishing' experiment using recombinant human (rh) Bri2 BRICHOS-coated magnetic particles, which exhibit essentially identical ability to inhibit Aβ42 fibril formation as free rh Bri2 BRICHOS, in combination with proteomic analysis on homogenates of SH-SY5Y cells. We identified 70 proteins that had more significant interactions with rh Bri2 BRICHOS relative to the corresponding control particles. Three previously identified Bri2 BRICHOS interacting proteins were also identified in our 'fishing' experiments. The binding affinity of Glyceraldehyde 3-phosphate dehydrogenase (GAPDH), the top 'hit', was calculated and was identified as a strong interacting partner. Enrichment analysis of the retained proteins identified three biological pathways: Rho GTPase, heat stress response and pyruvate, cysteine and methionine metabolism.
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Affiliation(s)
- Helene Tigro
- School of Natural Sciences and Health, Tallinn University, Tallinn, Estonia
| | - Nina Kronqvist
- Department of Biosciences and Nutrition, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Axel Abelein
- Department of Biosciences and Nutrition, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Lorena Galan-Acosta
- Department of Biosciences and Nutrition, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Gefei Chen
- Department of Biosciences and Nutrition, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Michael Landreh
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solna, Sweden
| | - Alexey Lyashkov
- Biomedical Research Centre, National Institute on Aging, NIH, Baltimore, MD, 21224, United States
| | - Miguel A Aon
- Biomedical Research Centre, National Institute on Aging, NIH, Baltimore, MD, 21224, United States
| | - Luigi Ferrucci
- Biomedical Research Centre, National Institute on Aging, NIH, Baltimore, MD, 21224, United States
| | - Ruth Shimmo
- School of Natural Sciences and Health, Tallinn University, Tallinn, Estonia
| | - Jan Johansson
- Department of Biosciences and Nutrition, Karolinska Institutet, 14183, Huddinge, Sweden
| | - Ruin Moaddel
- Biomedical Research Centre, National Institute on Aging, NIH, Baltimore, MD, 21224, United States.
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17
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Lima JM, Leme GM, Costa EV, Cass QB. LC-HRMS and acetylcholinesterase affinity assay as a workflow for profiling alkaloids in Annona salzmannii extract. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1164:122493. [DOI: 10.1016/j.jchromb.2020.122493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 02/07/2023]
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18
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Hou X, Sun M, Bao T, Xie X, Wei F, Wang S. Recent advances in screening active components from natural products based on bioaffinity techniques. Acta Pharm Sin B 2020; 10:1800-1813. [PMID: 33163336 PMCID: PMC7606101 DOI: 10.1016/j.apsb.2020.04.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/19/2020] [Accepted: 03/31/2020] [Indexed: 02/08/2023] Open
Abstract
Natural products have provided numerous lead compounds for drug discovery. However, the traditional analytical methods cannot detect most of these active components, especially at their usual low concentrations, from complex natural products. Herein, we reviewed the recent technological advances (2015–2019) related to the separation and screening bioactive components from natural resources, especially the emerging screening methods based on the bioaffinity techniques, including biological chromatography, affinity electrophoresis, affinity mass spectroscopy, and the latest magnetic and optical methods. These screening methods are uniquely advanced compared to other traditional methods, and they can fish out the active components from complex natural products because of the affinity between target and components, without tedious separation works. Therefore, these new tools can reduce the time and cost of the drug discovery process and accelerate the development of more effective and better-targeted therapeutic agents.
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Key Words
- AAs, amaryllidaceous alkaloids
- ABCA1, ATP-binding cassette transporter A1
- ACE, affinity capillary electrophoresis
- APTES, 3-aminopropyl-triethoxysilane
- ASMS, affinity selection mass spectrometry
- Active components
- Bioaffinity techniques
- CMC, Cell membrane chromatography
- CMMCNTs, Cell membrane magnetic carbon nanotube
- CMSP, Cell membrane stationary phase
- CNT, carbon nanotubes
- ChE, cholesterol efflux
- EGFR, epidermal growth factor receptor
- FP, fluorescence polarization
- Fe3O4–NH2, aminated magnetic nanoparticles
- HCS, high content screen
- HTS, high throughout screen
- HUVEC, human umbilical vein endothelial cells
- IMER, immobilized enzyme microreactor
- MAO-B, monoamine oxidases B
- MNP, immobilized on nanoparticles
- MPTS, 3-mercaptopropyl-trimethoxysilane
- MS, mass spectrometry
- MSPE, magnetic solid-phase extraction
- Natural products
- PD, Parkinson's disease
- PMG, physcion-8-O-β-d-monoglucoside
- RGD, arginine-glycine-aspartic acid
- SPR, surface plasmon resonance
- STAT3, signal transducer and activator of transcription 3
- Screening
- TCMs, traditional Chinese medicines
- TYR, tyrosinase
- TYR-MNPs, tyrosinase-immobilized magnetic nanoparticles
- Topo I, topoisomerase I
- UF, affinity ultrafiltration
- XOD, xanthine oxidase
- α1A-AR, α1A-adrenergic receptor
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19
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de Lima JM, Furlani IL, da Silva LRG, Valverde AL, Cass QB. Micro- and nano-sized amine-terminated magnetic beads in a ligand fishing assay. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:4116-4122. [PMID: 32766628 DOI: 10.1039/d0ay01269f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Functionalized micro- and nano-sized magnetic beads (MBs) have been widely used as versatile supports for proteins, enzymes, and drugs. Immobilized protein on MB surfaces has been successfully applied for ligand fishing assays allowing for direct identification of active ligands from complex mixtures, such as natural products and synthetic libraries. MBs with different properties such as different core compositions, sizes, coatings, and surface modifications are available commercially. Studies have been conducted to understand the role of these properties for ligand fishing assays. Here we evaluated, for the first time, the effect of MB size on the ligand fishing assay for acetylcholinesterase from Electrophorus electricus (AChE). For this purpose, four commercially available amine-terminated magnetic particles with diameters ranging from 4.5 nm to 106 μm were evaluated to fish out galantamine, a well-known AChE inhibitor, from an aqueous solution. All MBs were efficient at using glutaraldehyde to covalently immobilize AChE. The particles with diameters of about 1 μm (small microparticles) presented a higher protein mass capacity per milligram of particle than did those with diameters of about 4.5 nm (nanoparticles) and those with diameters of about 106 μm (large microparticles). The influence of these supports on the produced AChE-MBs with regards to hydrolysis turnover and ligand fishing was evaluated and is fully discussed.
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Affiliation(s)
- Juliana Maria de Lima
- Separare, Departamento de Química, Universidade Federal de São Carlos, São Carlos, Brazil.
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20
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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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21
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Pang J, Xiao Q, Yan H, Cao Y, Miao J, Wang S, Li X, Li H, Cheng Z. Bovine Lactoferrin Quantification in Dairy Products by a Simple Immunoaffinity Magnetic Purification Method Coupled with High-Performance Liquid Chromatography with Fluorescence Detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:892-898. [PMID: 31891506 DOI: 10.1021/acs.jafc.9b06043] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study described a simple, specific, and sensitive method using immunoaffinity magnetic purification coupled with high-performance liquid chromatography-fluorescence (HPLC-FL) detection for determination of bovine lactoferrin (bLf) in dairy products. BLf was selectively extracted from dairy products using immunoaffinity beads and then detected by HPLC-FL with its intrinsic fluorescence. During the analysis, standard solutions of bLf were pretreated with Tween 20, an anti-adsorptive agent, for blocking the nonspecific binding of bLf to polypropylene tubes. The calibration curve was linear over the range of 0.8-30 μg mL-1. The validated method was successfully applied to measure bLf at the intact level in dairy products.
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Affiliation(s)
- Jingjing Pang
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Qianqian Xiao
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Han Yan
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Yanqiu Cao
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Junjie Miao
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Simin Wang
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Xinfei Li
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Hao Li
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
| | - Zhongzhe Cheng
- School of Pharmacy , Weifang Medical University , 7166 Baotong West Street , Weifang , Shandong 261053 , China
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22
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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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23
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Screening and analysis of cyclooxygenase-2 inhibitors from the complex matrix: A case study to illustrate the important effect of immobilized enzyme activity in magnetic ligand fishing. J Pharm Biomed Anal 2019; 175:112795. [PMID: 31387029 DOI: 10.1016/j.jpba.2019.112795] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 07/06/2019] [Accepted: 07/29/2019] [Indexed: 11/24/2022]
Abstract
Magnetic ligand fishing is one of the most widely used methods to screen and separate potentially bioactive compounds from complex mixtures. However, it is poorly understood the ambiguous relations between immobilized enzyme activity and fishing results (accuracy and sensitivity). Therefore, to investigate the underlying relationship of them, we fabricated the immobilized enzyme with different activities by introducing a novel support material, nickel ions (Ni2+) functionalized magnetic mesoporous silica microspheres (MMSM@PDA-Ni2+). It possesses a higher activity than the previous report because of site-directed immobilization. Then, the immobilized COX-2 with different activities were prepared using different immobilization methods, including Ni2+ affinity-oriented immobilization, polydopamine (PDA) covalent immobilization, and conventional glutaraldehyde (GA) covalent immobilization. A standard mixture (COX-2 inhibitors and noninhibitors) and green tea extract were used to compare and evaluate the fishing results systematically. It displayed the fished inhibitors were dramatically reduced with the decreased activity of immobilized COX-2, indicating that immobilized enzyme activity played a critical role in a reliable magnetic ligand fishing analysis. This development questions some of the previous studies aimed at rapid screening bioactive compounds in natural products and opens new possibilities for accurate and sensitive magnetic ligand fishing analysis. Also, the introduced novel materials with mild immobilization strategy preserve enzyme activity and spatial conformational, therefore, provides a valuable tool in future applications.
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24
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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: 9] [Impact Index Per Article: 1.8] [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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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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Fei F, Sun H, Cheng X, Liu J, Wang J, Li Q, Zhang Y. Rapid screening and identification of bioactive compounds specifically binding to beta 2-adrenoceptor from San-ao decoction using affinity magnetic fine particles coupled with high-performance liquid chromatography-mass spectrometry. Chin Med 2018; 13:49. [PMID: 30258489 PMCID: PMC6154427 DOI: 10.1186/s13020-018-0207-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/20/2018] [Indexed: 01/24/2023] Open
Abstract
Background San-ao decoction (SAD) has been widely used in Chinese medicine against respiratory diseases, such as asthma and rhinallergosis. The bioactive compounds for such pharmacological action remain unknown. Methods We developed a methodology to isolate the bioactive compounds of SAD. The assay involved the immobilization of beta 2-adrenoceptor (β 2-AR) onto magnetic fine particles, the capture of target compounds by the immobilized receptor, the identification of the receptor bound compounds by reversed-phase high-performance liquid chromatography coupled with tandem mass spectrometry. Results Vicenin, shaftoside, isoshaftoside, liquiritin apioside and isoliquiritin apioside were identified as β 2-AR ligands in SAD extract. The binding of these compounds to β 2-AR occurred on serine169, serine170 and phenylalanine256 of the receptor. Conclusions The developed methodology has high stability and specificity for recognizing and isolating target compounds. It is an alternative method for rapidly screening bioactive compounds of immobilized receptor from Chinese prescriptions.
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Affiliation(s)
- Fuhuan Fei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
| | - Huanmei Sun
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
| | - Xixi Cheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
| | - Jiajun Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
| | - Jing Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
| | - Qian Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
| | - Yajun Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069 China
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Rapid ligand fishing for identification of acetylcholinesterase-binding peptides in snake venom reveals new properties of dendrotoxins. Toxicon 2018; 152:1-8. [DOI: 10.1016/j.toxicon.2018.06.080] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/16/2018] [Accepted: 06/25/2018] [Indexed: 11/23/2022]
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Zhao YM, Wang LH, Luo SF, Wang QQ, Moaddel R, Zhang TT, Jiang ZJ. Magnetic beads-based neuraminidase enzyme microreactor as a drug discovery tool for screening inhibitors from compound libraries and fishing ligands from natural products. J Chromatogr A 2018; 1568:123-130. [PMID: 30005943 DOI: 10.1016/j.chroma.2018.07.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/30/2018] [Accepted: 07/05/2018] [Indexed: 12/13/2022]
Abstract
Neuraminidase (NA) is a glycoside hydrolase that has been proposed as a potential therapeutic target for influenza. Thus, the identification of compounds that modulate NA activity could be of great therapeutic importance. The aim of this study is to develop a drug discovery tool for the identification of novel modulators of NA from both compound libraries and natural plant extracts. NA was immobilized onto the surface of magnetic beads and the inherent catalytic activity of NA-functionalized magnetic beads was characterized. Based on the enzymatic activity (hydrolysis ratio), the inhibitory activities of 12 compounds from plant secondary metabolites were screened, and the desired anti-NA activities of flavonoids were certified. Ligand fishing with the immobilized enzyme was optimized using an artificial test mixture consisting of oseltamivir, lycorine and matrine prior to carrying out the proof-of-concept experiment with the crude extract of Flos Lonicerae. The combination of ligand fishing and HPLC-MS/MS identified luteolin-7-O-β-D-glucoside, luteolin, 3,5-di-O-caffeoylquinic acid and 3,4-di-O-caffeoylquinic acid as neuraminidase inhibitory ligands in Flos Lonicerae. This is the first report on the use of neuraminidase functionalized magnetic beads for the identification of active ligands from a botanical matrix, and it sets the basis for the de novo identification of NA modulators from complex biological mixtures.
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Affiliation(s)
- Yu-Mei Zhao
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Lv-Huan Wang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Si-Fan Luo
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Qi-Qin Wang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China; Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, Jinan University, Guangzhou 510632, China
| | - Ruin Moaddel
- Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, MD, 21224, United States
| | - Ting-Ting Zhang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China.
| | - Zheng-Jin Jiang
- Institute of Pharmaceutical Analysis, College of Pharmacy, Jinan University, Guangzhou, Guangdong, 510632, China; Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, Jinan University, Guangzhou 510632, China.
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Ligand Fishing with Cellular Membrane-Coated Magnetic Beads: A New Method for the Screening of Potentially Active Compounds from Natural Products. Chromatographia 2017. [DOI: 10.1007/s10337-017-3370-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Xi HD, Zheng H, Guo W, Gañán-Calvo AM, Ai Y, Tsao CW, Zhou J, Li W, Huang Y, Nguyen NT, Tan SH. Active droplet sorting in microfluidics: a review. LAB ON A CHIP 2017; 17:751-771. [PMID: 28197601 DOI: 10.1039/c6lc01435f] [Citation(s) in RCA: 174] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The ability to manipulate and sort droplets is a fundamental issue in droplet-based microfluidics. Various lab-on-a-chip applications can only be realized if droplets are systematically categorized and sorted. These micron-sized droplets act as ideal reactors which compartmentalize different biological and chemical reagents. Array processing of these droplets hinges on the competence of the sorting and integration into the fluidic system. Recent technological advances only allow droplets to be actively sorted at the rate of kilohertz or less. In this review, we present state-of-the-art technologies which are implemented to efficiently sort droplets. We classify the concepts according to the type of energy implemented into the system. We also discuss various key issues and provide insights into various systems.
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Affiliation(s)
- Heng-Dong Xi
- School of Aeronautics, Northwestern Polytechnical University, 127 West Youyi Rd., Xi'an, Shaanxi, China
| | - Hao Zheng
- School of Aeronautics, Northwestern Polytechnical University, 127 West Youyi Rd., Xi'an, Shaanxi, China
| | - Wei Guo
- School of Aeronautics, Northwestern Polytechnical University, 127 West Youyi Rd., Xi'an, Shaanxi, China and Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia.
| | - Alfonso M Gañán-Calvo
- Depto. de Ingeniería Aeroespacial y Mecánica de Fluidos, Universidad de Sevilla, E-41092 Sevilla, Spain
| | - Ye Ai
- Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore
| | - Chia-Wen Tsao
- Department of Mechanical Engineering, National Central University, No. 300, Zhongda Rd, Taoyuan, Taiwan
| | - Jun Zhou
- School of Information and Communication Technology, Griffith University, Nathan, QLD 4111, Australia
| | - Weihua Li
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Yanyi Huang
- Biodynamic Optical Imaging Center, Peking University, Beijing 100871, China
| | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia.
| | - Say Hwa Tan
- Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road, Brisbane, QLD 4111, Australia.
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31
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Sikora A, Chełminiak-Dudkiewicz D, Siódmiak T, Tarczykowska A, Sroka WD, Ziegler-Borowska M, Marszałł MP. Enantioselective acetylation of ( R , S )-atenolol: The use of Candida rugosa lipases immobilized onto magnetic chitosan nanoparticles in enzyme-catalyzed biotransformation. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.09.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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32
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Cieśla Ł, Moaddel R. Comparison of analytical techniques for the identification of bioactive compounds from natural products. Nat Prod Rep 2016; 33:1131-45. [PMID: 27367973 PMCID: PMC5042860 DOI: 10.1039/c6np00016a] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Covering: 2000 to 2016Natural product extracts are a rich source of bioactive compounds. As a result, the screening of natural products for the identification of novel biologically active metabolites has been an essential part of several drug discovery programs. It is estimated that more than 70% of all drugs approved from 1981 and 2006, were either derived from or structurally similar to nature based compounds indicating the necessity for the development of a rapid method for the identification of novel compounds from plant extracts. The screening of biological matrices for the identification of novel modulators is nevertheless still challenging. In this review we discuss current techniques in phytochemical analysis and the identification of biologically active components.
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Affiliation(s)
- Łukasz Cieśla
- Laboratory of Clinical Investigation, Biomedical Research Center, 8C232, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, Maryland 21224, USA.
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Marszałł MP, Sroka WD, Sikora A, Chełminiak D, Ziegler-Borowska M, Siódmiak T, Moaddel R. Ligand fishing using new chitosan based functionalized Androgen Receptor magnetic particles. J Pharm Biomed Anal 2016; 127:129-35. [PMID: 27156644 DOI: 10.1016/j.jpba.2016.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/17/2016] [Accepted: 04/12/2016] [Indexed: 01/12/2023]
Abstract
Superparamagnetic nanoparticles with chemically modified chitosan has been proposed as a potential support for the immobilization of the androgen receptor (AR). The study involved comparison of different AR carriers like commercially available magnetic beads coated with silica (BcMag) and chitosan coated nanoparticles with different amount of amino groups. The immobilization was carried out through covalent immobilization of the AR through the terminal amino group or through available carboxylic acids. The initial characterization of the AR coated magnetic beads was carried out with dihydrotestosterone, a known AR ligand. Subsequently, chitosan modified nanporticles with long-distanced primary amino groups (Fe3O4CS-(NH2)3) (upto 8.34mM/g) were used for further study to isolate known AR ligands (bicalutamide, flutamide, hydroxyflutamide and levonogestrel) from a mixture of tested compounds in ammonium acetate buffer [10mM, pH 7.4]. The results showed that the selected nanoparticles are a promising semi-quantitative tool for the identification of high affinity compounds to AR and might be of special importance in the identification of novel agonists or antiandrogens.
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Affiliation(s)
- Michał Piotr Marszałł
- Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Department of Medicinal Chemistry, ul. Jurasza 2, 85-089 Bydgoszcz, Poland.
| | - Wiktor Dariusz Sroka
- Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Department of Medicinal Chemistry, ul. Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Adam Sikora
- Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Department of Medicinal Chemistry, ul. Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Dorota Chełminiak
- Nicolaus Copernicus University in Torun, Faculty of Chemistry Gagarina 7, 87-100 Torun, Poland
| | - Marta Ziegler-Borowska
- Nicolaus Copernicus University in Torun, Faculty of Chemistry Gagarina 7, 87-100 Torun, Poland
| | - Tomasz Siódmiak
- Nicolaus Copernicus University in Torun, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Department of Medicinal Chemistry, ul. Jurasza 2, 85-089 Bydgoszcz, Poland
| | - Ruin Moaddel
- Laboratory of Clinical Investigation, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD, USA
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34
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Preparation and characterization of micro-cell membrane chromatographic column with silica-based porous layer open tubular capillary as cellular membrane carrier. Anal Bioanal Chem 2016; 408:2441-8. [DOI: 10.1007/s00216-016-9339-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/08/2016] [Accepted: 01/14/2016] [Indexed: 10/22/2022]
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35
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Qing LS, Xue Y, Ding LS, Liu YM, Liang J, Liao X. A Rapid Study of Botanical Drug–Drug Interaction with Protein by Re-ligand Fishing using Human Serum Albumin–Functionalized Magnetic Nanoparticles. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A great many active constituents of botanical drugs bind to human serum albumin (HSA) reversibly with a dynamic balance between the free- and bound-forms in blood. The curative or side effect of a drug depends on its free-form level, which is always influenced by other drugs, combined dosed or multi-constituents of botanical drugs. This paper presented a rapid and convenient methodology to investigate the drug-drug interactions with HSA. The interaction of two steroidal saponins, dioscin and pseudo-protodioscin, from a botanical drug was studied for their equilibrium time and equilibrium amount by re-ligand fishing using HSA functionalized magnetic nanoparticles. A clear competitive situation was obtained by this method. The equilibrium was reached soon about 15 s at a ratio of 0.44: 1. Furthermore, the interaction of pseudo-protodioscin to total steroidal saponins from DAXXK was also studied. The operation procedures of this method were faster and more convenient compared with other methods reported.
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Affiliation(s)
- Lin-Sen Qing
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China, 610041
| | - Ying Xue
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China, 610041
| | - Li-Sheng Ding
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China, 610041
| | - Yi-Ming Liu
- Jackson State University, Mississippi, USA, 39217
| | - Jian Liang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China, 610041
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China, 610041
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36
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Vanzolini KL, Vieira LCC, Corrêa AG, Moaddel R, Cass QB. Acetylcholinesterase immobilized on modified magnetic beads as a tool for screening a compound library. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1562-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Fabrication of enzyme-immobilized halloysite nanotubes for affinity enrichment of lipase inhibitors from complex mixtures. J Chromatogr A 2015; 1392:20-7. [PMID: 25798866 DOI: 10.1016/j.chroma.2015.03.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/28/2015] [Accepted: 03/02/2015] [Indexed: 11/23/2022]
Abstract
Lipase is the key enzyme for catalyzing triglyceride hydrolysis in vivo, and lipase inhibitors have been used in the management of obesity. We present the first report on the use of lipase-adsorbed halloysite nanotubes as an efficient medium for the selective enrichment of lipase inhibitors from natural products. A simple and rapid approach was proposed to fabricate lipase-adsorbed nanotubes through electrostatic interaction. Results showed that more than 85% lipase was adsorbed into nanotubes in 90 min, and approximately 80% of the catalytic activity was maintained compared with free lipase. The specificity and reproducibility of the proposed approach were validated by screening a known lipase inhibitor (i.e., orlistat) from a mixture that contains active and inactive compounds. Moreover, we applied this approach with high performance liquid chromatography-mass spectrometry technique to screen lipase inhibitors from the Magnoliae cortex extract, a medicinal plant used for treating obesity. Two novel biphenyl-type natural lipase inhibitors magnotriol A and magnaldehyde B were identified, and their IC50 values were determined as 213.03 and 96.96 μM, respectively. The ligand-enzyme interactions of magnaldehyde B were further investigated by molecular docking. Our findings proved that enzyme-adsorbed nanotube could be used as a feasible and selective affinity medium for the rapid screening of enzyme inhibitors from complex mixtures.
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de Moraes MC, Santos JB, Dos Anjos DM, Rangel LP, Vieira TCRG, Moaddel R, da Silva JL. Prion protein-coated magnetic beads: synthesis, characterization and development of a new ligands screening method. J Chromatogr A 2014; 1379:1-8. [PMID: 25576041 DOI: 10.1016/j.chroma.2014.12.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 12/01/2014] [Accepted: 12/03/2014] [Indexed: 01/17/2023]
Abstract
Prion diseases are characterized by protein aggregation and neurodegeneration. Conversion of the native prion protein (PrP(C)) into the abnormal scrapie PrP isoform (PrP(Sc)), which undergoes aggregation and can eventually form amyloid fibrils, is a critical step leading to the characteristic path morphological hallmark of these diseases. However, the mechanism of conversion remains unclear. It is known that ligands can act as cofactors or inhibitors in the conversion mechanism of PrP(C) into PrP(Sc). Within this context, herein, we describe the immobilization of PrP(C) onto the surface of magnetic beads and the morphological characterization of PrP(C)-coated beads by fluorescence confocal microscopy. PrP(C)-coated magnetic beads were used to identify ligands from a mixture of compounds, which were monitored by UHPLC-ESI-MS/MS. This affinity-based method allowed the isolation of the anti-prion compound quinacrine, an inhibitor of PrP aggregation. The results indicate that this approach can be applied to not only "fish" for anti-prion compounds from complex matrixes, but also to screening for and identify possible cellular cofactors involved in the deflagration of prion diseases.
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Affiliation(s)
- Marcela Cristina de Moraes
- Universidade Federal Fluminense, Instituto de Química, Departamento de Química Orgânica, 24210-141 Niterói, RJ, Brazil; Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica, 21941-902 Rio de Janeiro, RJ, Brazil.
| | - Juliana Bosco Santos
- Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Daniel Meira Dos Anjos
- Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Luciana Pereira Rangel
- Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, 21941-902 Rio de Janeiro, RJ, Brazil; Universidade Federal do Rio de Janeiro, Faculdade de Farmácia, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Tuane Cristine Ramos Gonçalves Vieira
- Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica, 21941-902 Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, 21941-902 Rio de Janeiro, RJ, Brazil
| | - Ruin Moaddel
- Biomedical Research Center, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Jerson Lima da Silva
- Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica, 21941-902 Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, 21941-902 Rio de Janeiro, RJ, Brazil
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Deng X, Shi S, Li S, Yang T. Magnetic ligand fishing combination with high-performance liquid chromatography–diode array detector–mass spectrometry to screen and characterize cyclooxygenase-2 inhibitors from green tea. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 973C:55-60. [DOI: 10.1016/j.jchromb.2014.10.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 09/18/2014] [Accepted: 10/08/2014] [Indexed: 11/27/2022]
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40
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Zhu YT, Jia YW, Liu YM, Liang J, Ding LS, Liao X. Lipase ligands in Nelumbo nucifera leaves and study of their binding mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:10679-10686. [PMID: 25328123 DOI: 10.1021/jf503687e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Lotus (Nelumbo nucifera) leaves have been widely used in weight-loss foods to prevent obesity in China. In this work, a facile procedure based on ligand fishing was developed to isolate and identify lipase inhibitors present in lotus leaves. Highly stable and active lipase-Fe3O4 superparamagnetic nanoparticle conjugates (LMNPs) were prepared and used as baits. Two flavonoids in lotus leaf extract were found to bind to the baits and were identified as quercetin-3-O-β-d-arabinopyranosyl-(1→2)- β-d-galactopyranoside (1) and quercetin-3-O-β-d-glucuronide (4) based on electrospray ionization-mass spectrometric analyses. Their 50% inhibitory concentrations on lipase (IC50) were 52.9 ± 3.2 and 17.1 ± 1.5 μg/mL, respectively. In addition, they were found to significantly quench the fluorescence of lipase, suggesting their strong affinities with this enzyme, which was further evidenced by molecular docking. Ligand fishing based on LMNPs shows great power for fast screening and identification of lipase inhibitors present in edible and medicinal plants.
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Affiliation(s)
- Yuan-Ting Zhu
- Chengdu Institute of Biology, Chinese Academy of Sciences , Chengdu 610041, China
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Li Y, Chen Y, Xiao C, Chen D, Xiao Y, Mei Z. Rapid screening and identification of α-amylase inhibitors from Garcinia xanthochymus using enzyme-immobilized magnetic nanoparticles coupled with HPLC and MS. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 960:166-73. [PMID: 24814002 DOI: 10.1016/j.jchromb.2014.04.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/18/2014] [Accepted: 04/22/2014] [Indexed: 12/30/2022]
Abstract
α-Amylase inhibitors play an important role in management of diabetes and obesity. In order to rapidly discover potent α-amylase inhibitors from medicinal plants, a ligands-screening method based on enzyme-immobilized magnetic nanoparticles integrated with HPLC was developed. Amine-terminated magnetic nanoparticles were prepared for the immobilization of α-amylase. Based on the affinity theory, the α-amylase-coated magnetic nanoparticles were employed to fish out the ligands from the extracts of Garcinia xanthochymus, and the elutes were examined by HPLC. As a result, three ligands were screened out. Isolation and identification were carried out subsequently. By analyzing the UV, MS and NMR spectra, they were identified as three biflavonoids including GB2a glucoside (2), GB2a (3) and fukugetin (4). The IC50 values of the three compounds were also determined. The results suggest the proposed approach is efficient and accurate, and has great potential in rapid discovery of drug candidates from medical plants.
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Affiliation(s)
- Yunfang Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China; College of Pharmacy, South Central University for Nationalities, Wuhan 430074, China
| | - Yu Chen
- College of Chemistry and Material Sciences, South Central University for Nationalities, Wuhan 430074, China
| | - Chuying Xiao
- College of Pharmacy, South Central University for Nationalities, Wuhan 430074, China
| | - Dan Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Yuxiu Xiao
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), and School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| | - Zhinan Mei
- College of Pharmacy, South Central University for Nationalities, Wuhan 430074, China.
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42
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Purification of nucleic acids using isotachophoresis. J Chromatogr A 2014; 1335:105-20. [DOI: 10.1016/j.chroma.2013.12.027] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/04/2013] [Accepted: 12/07/2013] [Indexed: 12/30/2022]
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43
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de Moraes MC, Vanzolini KL, Cardoso CL, Cass QB. New trends in LC protein ligand screening. J Pharm Biomed Anal 2014; 87:155-66. [DOI: 10.1016/j.jpba.2013.07.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 07/11/2013] [Accepted: 07/12/2013] [Indexed: 10/26/2022]
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44
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Vanzolini KL, Jiang Z, Zhang X, Vieira LCC, Corrêa AG, Cardoso CL, Cass QB, Moaddel R. Acetylcholinesterase immobilized capillary reactors coupled to protein coated magnetic beads: a new tool for plant extract ligand screening. Talanta 2013; 116:647-52. [PMID: 24148457 PMCID: PMC3826612 DOI: 10.1016/j.talanta.2013.07.046] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/19/2013] [Accepted: 07/22/2013] [Indexed: 10/26/2022]
Abstract
The use of immobilized capillary enzyme reactors (ICERs) and enzymes coated to magnetic beads ((NT or CT)-MB) for ligand screening has been adopted as a new technique of high throughput screening (HTS). In this work the selected target was the enzyme acetylcholinesterase (AChE), which acts on the central nervous system and is a validated target for the treatment of Alzheimer's disease, as well as for new insecticides. A new approach for the screening of plant extracts was developed based on the ligand fishing experiments and zonal chromatography. For that, the magnetic beads were used for the ligand fishing experiments and capillary bioreactors for the activity assays. The latter was employed also under non-linear conditions to determine the affinity constants of known ligands, for the first time, as well as for the active fished ligand.
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Affiliation(s)
- Kenia Lourenço Vanzolini
- Departamento de Química, Universidade Federal de São Carlos, caixa postal 676, São Carlos 13565-905, Brazil
- Biomedical Research Center, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
| | - Zhengjin Jiang
- Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, Jinan University, Guangzhou 510632, China
| | - Xiaoqi Zhang
- Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, Jinan University, Guangzhou 510632, China
| | | | - Arlene Gonçalvez Corrêa
- Departamento de Química, Universidade Federal de São Carlos, caixa postal 676, São Carlos 13565-905, Brazil
| | - Carmen Lucia Cardoso
- Departamento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901 SP, Brazil
| | - Quezia Bezerra Cass
- Departamento de Química, Universidade Federal de São Carlos, caixa postal 676, São Carlos 13565-905, Brazil
| | - Ruin Moaddel
- Biomedical Research Center, National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, USA
- Department of Pharmacy and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine & New Drug Research, Jinan University, Guangzhou 510632, China
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45
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Accuracy assessment on the analysis of unbound drug in plasma by comparing traditional centrifugal ultrafiltration with hollow fiber centrifugal ultrafiltration and application in pharmacokinetic study. J Chromatogr A 2013; 1318:265-9. [DOI: 10.1016/j.chroma.2013.09.078] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 09/10/2013] [Accepted: 09/25/2013] [Indexed: 01/03/2023]
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46
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Lipase-immobilized magnetic chitosan nanoparticles for kinetic resolution of (R,S)-ibuprofen. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.04.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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47
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Separation and purification of bovine serum albumin binders from Fructus polygoni orientalis using off-line two-dimensional complexation high-speed counter-current chromatography target-guided by ligand fishing. J Chromatogr A 2013; 1304:183-93. [DOI: 10.1016/j.chroma.2013.07.043] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 06/22/2013] [Accepted: 07/10/2013] [Indexed: 12/21/2022]
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48
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Immobilized magnetic beads based multi-target affinity selection coupled with high performance liquid chromatography-mass spectrometry for screening anti-diabetic compounds from a Chinese medicine "Tang-Zhi-Qing". J Pharm Biomed Anal 2013; 78-79:190-201. [PMID: 23501439 DOI: 10.1016/j.jpba.2013.02.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2012] [Revised: 02/16/2013] [Accepted: 02/19/2013] [Indexed: 11/21/2022]
Abstract
We developed an approach for screening bioactive compounds from botanical drug using multiple target-immobilized magnetic beads coupled with high performance liquid chromatography-mass spectrometry. This novel approach was called magnetic beads based multi-target affinity selection-mass spectrometry (MT-ASMS). It can enrich and identify different types of ligands from mixture extracts. Multiple targets (maltase, invertase, lipase) were immobilized on the magnetic beads by covalent linkage using 1-(3-dimethyl-aminopropyl)-3-ethyl-carbodiimide (EDC) and N-hydroxysuccinimide (NHS) as reaction reagents, respectively. The properties of enzyme conjugated magnetic beads were characterized using transmission electron microscopy, X-ray diffractometer and vibration sample magnetometer. Several factors including pH, ion strength, incubation time and temperature were optimized using three known ligands (caffeic acid, ferulic acid, and hesperidin). The established MT-ASMS approach was applied to screening for ligands from a Chinese medicine "Tang-Zhi-Qing", which was used to treat type II diabetes in China. Seven bound compounds were identified via liquid chromatography-mass spectrometry (LC/MS). Five active compounds including 2,3,4,6-tetra-O-galloyl-D-glucose, 1,2,3,4-tetra-O-galloyl-D-glucose, 1,2,3,4,6-penta-O-galloyl-d-glucose, quercetin-3-O-β-D-glucuronide and quercetin-3-O-β-D-glucoside were identified and their activities were validated by conventional inhibitory assay. Our findings suggested that the proposed approach is efficient in screening compounds with multiple activities from extracts of botanical drugs.
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49
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Dai H, Zhu J, Yang Z, Li J, Jiao X, Hu X, Wang J. A paramagnetic microspheres based automation-friendly rapid chemiluminescent immunoassay method for sensitive detection of chicken interferon-γ. Chem Commun (Camb) 2013; 49:1708-10. [DOI: 10.1039/c3cc38040h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Immobilization of Candida rugosa lipase onto magnetic beads for kinetic resolution of (R,S)-ibuprofen. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.03.027] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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