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A Novel Method for Identifying Parkin Binding Agents in Complex Preparations of Herbal Medicines. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3260243. [PMID: 35087614 PMCID: PMC8789414 DOI: 10.1155/2022/3260243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/11/2021] [Accepted: 12/04/2021] [Indexed: 11/24/2022]
Abstract
Parkin is a crucial E3 ubiquitin ligase for initiating mitophagy through the PINK1/Parkin pathway. Regulating the expression and activity of parkin can remedy mitophagy and human disease. We developed an efficient method to isolate natural parkin ligands from herbal medicines by combining centrifugal ultrafiltration and liquid chromatography/mass spectrometry. The heterologous expression technology identified functionally active and pure parkin proteins. After evaluating the reliability of the method using DL-selenomethionine and DL-dithiothreitol as positive controls, this method was successfully applied to capture parkin ligands from Polygoni Cuspidati Rhizoma et Radix and Sophorae Flavescentis Radix. LC/MS identified seven novel parkin-targeting compounds, namely, 7,4′-dihydroxy-5-methoxy-8-(γ, γ-dimethylallyl)-flavanone, kushenol I, kurarinone, sophoraflavanone G, torachrysone-8-O-glucoside, apigenin, and emodin, supported by the molecular docking analysis. Five of the seven novel compounds (kushenol I, kurarinone, sophoraflavanone G, apigenin, and emodin) can activate parkin in in vitro autoubiquitination assays. Meanwhile, kushenol I and kurarinone had antisteatosis activity in fat emulsion-damaged human hepatocytes. These results confirmed the effectiveness of the method for identifying parkin ligands from complex preparations, useful to advance drug discovery from medicinal herbs.
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Zhao M, Yao L, Zhang X, Wang L, Tu P, Zeng K. Global identification of the cellular targets for a multi-molecule system by a photochemically-induced coupling reaction. Chem Commun (Camb) 2021; 57:3449-3452. [PMID: 33870345 DOI: 10.1039/d1cc00392e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Current target identification strategies mainly focus on single compounds. However, no practical experimental methodologies have been developed for multi-molecule systems. Herein, we established a cellular target identification technology for a multi-molecule system by preparing 4,4'-dihydroxybenzophenone (DHBP)-bound Fe3O4 nanoparticles (NPs) with photochemically induced crosslinking capacity. DHBP-bound NPs reacted with the chemicals from the medicinal plant extract as a multi-molecule system under ultraviolet radiation by forming carbon-carbon bonds, thus generating extract-crosslinked NPs for capturing target proteins from cell lysates. The technology, which is named the Zhao-Yao (ZY) strategy, may promote the comprehensive interpretation of the pharmacological mechanism of multi-molecule systems via the global identification of cellular targets.
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Affiliation(s)
- Meimei Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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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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Yang XX, Wei JD, Mu JK, Liu X, Dong JC, Zeng LX, Gu W, Li JP, Yu J. Integrated metabolomic profiling for analysis of antilipidemic effects of Polygonatum kingianum extract on dyslipidemia in rats. World J Gastroenterol 2018; 24:5505-5524. [PMID: 30622379 PMCID: PMC6319135 DOI: 10.3748/wjg.v24.i48.5505] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/31/2018] [Accepted: 11/16/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To identify the effects and mechanism of action of Polygonatum kingianum (P. kingianum) on dyslipidemia in rats using an integrated untargeted metabolomic method.
METHODS A rat model of dyslipidemia was induced with a high-fat diet (HFD) and rats were given P. kingianum [4 g/(kg•d)] intragastrically for 14 wk. Changes in serum and hepatic lipid parameters were evaluated. Metabolites in serum, urine and liver samples were profiled using ultra-high performance liquid chromatography/mass spectrometry followed by multivariate statistical analysis to identify potential biomarkers and metabolic pathways.
RESULTS P. kingianum significantly inhibited the HFD-induced increase in total cholesterol and triglyceride in the liver and serum. P. kingianum also significantly regulated metabolites in the analyzed samples toward normal status. Nineteen, twenty-four and thirty-eight potential biomarkers were identified in serum, urine and liver samples, respectively. These biomarkers involved biosynthesis of phenylalanine, tyrosine, tryptophan, valine, leucine and isoleucine, along with metabolism of tryptophan, tyrosine, phenylalanine, starch, sucrose, glycerophospholipid, arachidonic acid, linoleic acid, nicotinate, nicotinamide and sphingolipid.
CONCLUSION P. kingianum alleviates HFD-induced dyslipidemia by regulating many endogenous metabolites in serum, urine and liver samples. Collectively, our findings suggest that P. kingianum may be a promising lipid regulator to treat dyslipidemia and associated diseases.
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Affiliation(s)
- Xing-Xin Yang
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Jia-Di Wei
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Jian-Kang Mu
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Xin Liu
- Beijing Entry-Exit Inspection and Quarantine Bureau, Beijing 100026, China
| | - Jin-Cai Dong
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Lin-Xi Zeng
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Wen Gu
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Jing-Ping Li
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
| | - Jie Yu
- College of Pharmaceutical Science, Yunnan University of Traditional Chinese Medicine, Kunming 650500, Yunnan Province, China
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Shi Y, Zheng C, Li J, Yang L, Wang Z, Wang R. Separation and Quantification of Four Main Chiral Glucosinolates in Radix Isatidis and Its Granules Using High-Performance Liquid Chromatography/Diode Array Detector Coupled with Circular Dichroism Detection. Molecules 2018; 23:molecules23061305. [PMID: 29844266 PMCID: PMC6100438 DOI: 10.3390/molecules23061305] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 11/16/2022] Open
Abstract
As chemical drugs, separation and quantification of the specific enantiomer from the chiral compounds in herbal medicines are becoming more important. To clarify the chemical characterization of chiral glucosinolates—the antiviral active ingredients of Radix Isatidis, an optimized efficient method of HPLC-UV-CD was developed to simultaneously separate and quantify the four main chiral glucosinolates: progoitrin, epiprogoitrin, and R,S-goitrin. The first step was to determine progoitrin, epiprogoitrin, and R,S-goitrin using HPLC-UV, and then determine the R-goitrin and S-goitrin by coupling with CD detection. Subsequently, through the linear relations between anisotropy factor (g factor) and the percent optical purity of R-goitrin, the contents of R-goitrin and S-goitrin from the R,S-goitrin mixture were calculated separately. Furthermore, the chemical composition features of the four chiral glucosinolates in 37 samples from crude drugs, decoction pieces, and granules of R. Isatidis were conducted. The total content of the four glucosinolates was obviously higher in crude drugs, and the variance character of each glucosinolate contents was different. In summary, the accurate measurement method reported here allows for better control of the internal quality of R. Isatidis and its granules and provides a powerful approach for the analysis of other chiral components in traditional Chinese medicines.
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Affiliation(s)
- Yanhong Shi
- The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Cheng Zheng
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jinhang Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Li Yang
- The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- Center for Chinese Medical Therapy and Systems Biology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Zhengtao Wang
- The MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Rui Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Wang Z, Hwang SH, Zuo G, Kim SB, Lim SS. An in vitro affinity-based method for studying herb–drug interactions for direct identification of cytochrome P450 1A2, 3A4, and 2C9 specific ligands from herbal extracts using ultrafiltration-high performance liquid chromatography. RSC Adv 2018; 8:8944-8949. [PMID: 35539875 PMCID: PMC9078662 DOI: 10.1039/c7ra12161j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 02/20/2018] [Indexed: 12/25/2022] Open
Abstract
The specific ligands in natural product extracts could be identified from a multi-target system by ultrafiltration-high performance liquid chromatography using competitive probes.
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Affiliation(s)
- Zhiqiang Wang
- College of Public Health
- Hebei University
- Baoding
- China
- Department of Food Science and Nutrition
| | - Seung Hwan Hwang
- Department of Food Science and Nutrition
- Hallym University
- Chuncheon
- Republic of Korea
| | - Guanglei Zuo
- Department of Food Science and Nutrition
- Hallym University
- Chuncheon
- Republic of Korea
| | - Set Byeol Kim
- Department of Food Science and Nutrition
- Hallym University
- Chuncheon
- Republic of Korea
| | - Soon Sung Lim
- Department of Food Science and Nutrition
- Hallym University
- Chuncheon
- Republic of Korea
- Institute of Korea Nutrition
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Rapid Screening of Active Components with an Osteoclastic Inhibitory Effect in Herba epimedii Using Quantitative Pattern-Activity Relationships Based on Joint-Action Models. Molecules 2017; 22:molecules22101767. [PMID: 29048399 PMCID: PMC6151442 DOI: 10.3390/molecules22101767] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 10/14/2017] [Accepted: 10/16/2017] [Indexed: 12/21/2022] Open
Abstract
Screening of bioactive components is important for modernization and quality control of herbal medicines, while the traditional bioassay-guided phytochemical approach is time-consuming and laborious. The presented study proposes a strategy for rapid screening of active components from herbal medicines. As a case study, the quantitative pattern–activity relationship (QPAR) between compounds and the osteoclastic inhibitory effect of Herba epimedii, a widely used herbal medicine in China, were investigated based on joint models. For model construction, standard mixtures data showed that the joint-action models are better than the partial least-squares (PLS) model. Then, the Good2bad value, which could reflect components’ importance based on Monte Carlo sampling, was coupled with the joint-action models for screening of active components. A compound (baohuoside I) and a component composed of compounds with retention times in the 6.9–7.9 min range were selected by our method. Their inhibition rates were higher than icariin, the key bioactive compound in Herba epimedii, which could inhibit osteoclast differentiation and bone resorption in a previous study. Meanwhile, the half-maximal effective concentration, namely, EC50 value of the selected component was 7.54 μg/mL, much smaller than that of baohuoside I—77 μg/mL—which indicated that there is synergistic action between compounds in the selected component. The results clearly show our proposed method is simple and effective in screening the most-bioactive components and compounds, as well as drug-lead components, from herbal medicines.
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Zhou Y. The recent development and applications of fluidic channels by 3D printing. J Biomed Sci 2017; 24:80. [PMID: 29047370 PMCID: PMC5646158 DOI: 10.1186/s12929-017-0384-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 09/17/2017] [Indexed: 01/09/2023] Open
Abstract
The technology of “Lab-on-a-Chip” allows the synthesis and analysis of chemicals and biological substance within a portable or handheld device. The 3D printed structures enable precise control of various geometries. The combination of these two technologies in recent years makes a significant progress. The current approaches of 3D printing, such as stereolithography, polyjet, and fused deposition modeling, are introduced. Their manufacture specifications, such as surface roughness, resolution, replication fidelity, cost, and fabrication time, are compared with each other. Finally, novel application of 3D printed channel in biology are reviewed, including pathogenic bacteria detection using magnetic nanoparticle clusters in a helical microchannel, cell stimulation by 3D chemical gradients, perfused functional vascular channels, 3D tissue construct, organ-on-a-chip, and miniaturized fluidic “reactionware” devices for chemical syntheses. Overall, the 3D printed fluidic chip is becoming a powerful tool in the both medical and chemical industries.
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Affiliation(s)
- Yufeng Zhou
- Singapore Centre for 3D Printing (SC3DP), School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore.
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Ye H, Huang L, Li W, Zhang Y, Zhao L, Xin Q, Wang S, Lin L, Ding X. Protein adsorption and desorption behavior of a pH-responsive membrane based on ethylene vinyl alcohol copolymer. RSC Adv 2017. [DOI: 10.1039/c7ra03206d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The pH-responsive protein adsorption and desorption of a poly(DMAEMA)-grafted EVAL membrane was observed.
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Affiliation(s)
- Hui Ye
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Lilan Huang
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Wenrui Li
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - YuZhong Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Lizhi Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Qingping Xin
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Shaofei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Ligang Lin
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
| | - Xiaoli Ding
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- China
- School of Materials Science and Engineering
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