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Wang HP, Lin ZZ, Yin Q, Du J. Screening of GLP-1r agonists from natural products using affinity ultrafiltration screening coupled with UPLC-ESI-Orbitrap-MS technology: a case study of Panax ginseng. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024:1-13. [PMID: 39037429 DOI: 10.1080/10286020.2024.2378821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 07/07/2024] [Indexed: 07/23/2024]
Abstract
In our study, a method based on affinity ultrafiltration screening coupled with UPLC-ESI-Orbitrap-MS technology was established to select Glucagon-like peptide-1 receptor (GLP-1R) agonists from natural products, and as an example, the GLP-1R agonists from Panax ginseng was selected using our established method. As a result, total five GLP-1R agonists were selected from Panax ginseng for the first time. Our results indicated that activating GLP-1R to promote insulin secretion probably was another important hypoglycemia mechanism for ginsenosides in Panax ginseng, which had great influence on the study of the anti-diabetes effect of ginsenosides.
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Affiliation(s)
- Hong-Ping Wang
- Scientific Research Institute of Beijing Tongrentang Co., Ltd, Beijing 100011, China
| | - Zhao-Zhou Lin
- Beijing Zhongyan Tongrentang Pharmaceutical R & D Co., Ltd., National Engineering Research Center for R&D of TCM Multi-ingredient Drugs, Beijing 100079, China
| | - Qiong Yin
- Scientific Research Institute of Beijing Tongrentang Co., Ltd, Beijing 100011, China
| | - Jing Du
- Beijing Tongrentang Group, Beijing 100000, China
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2
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Wu T, Hou W, Li S, Liu C, Zhang Y. Integrated analysis and separation of 5-lipoxygenase inhibitors from triterpenes of Poria cocos using bioaffinity ultrafiltration UPLC-Q-Exactive, molecular docking and target-based multiple complex networks. Fitoterapia 2024; 175:105856. [PMID: 38354820 DOI: 10.1016/j.fitote.2024.105856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 01/31/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
Poria cocos (Schw.) Wolf (P. cocos) has been widely used as medical plant in East Asia with remarkable anti-Alzheimer's disease (anti-AD) activity. However, the underlying mechanisms are still confused. In this study, based on the β-Amyloid deposition hypothesis of AD, an integrated analysis was conducted to screen and separation 5-lipoxygenase (5-LOX) inhibitors from triterpenoids of P. cocos and investigate the anti-AD mechanisms, containing bioaffinity ultrafiltration UPLC-Q-Exactive, molecular docking, and multiple complex networks. Five triterpenoids were identified as potential 5-LOX inhibitors, including Tumulosic acid, Polyporenic acid C, 3-Epi-dehydrotumulosic acid, Pachymic acid and Dehydrotrametenolic acid. Five potential 5-LOX inhibitors were screened by ultrafiltration affinity assay in P. cocos. The molecular docking simulation results are consistent with the ultrafiltration experimental results, which further verifies the accuracy of the experiment. The commercial 5-LOX inhibitor that Zileuton was used as a positive control to evaluate the inhibitory effect of active ingredients on 5-LOX. Subsequently, the established separation method allowed the five active ingredients (Pachymic acid, 3-Epi-dehydrotumulosic acid, Dehydrotrametenolic acid, Tumulosic acid and Polyporenic acid C) with high purity to be isolated. Targeting network pharmacology analysis showed that five active ingredients correspond to a total of 286 targets. Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis found that target cells were mainly enriched in Pathways in cancer, Lipid and atherosclerosis. Our results indicate that P. cocos extract has the potential to be used in the prevention and treatment of neurodegenerative diseases. This will help elucidate the mechanisms of action of various medicinal plants at the molecular level and provide more opportunities for the discovery and development of new potential treatments from health food resources.
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Affiliation(s)
- Tong Wu
- Central Laboratory, Changchun Normal University, Changchun 130032, China
| | - Wanchao Hou
- College of Chemistry, Jilin University, Changchun 130021, Jilin, China
| | - Sainan Li
- Central Laboratory, Changchun Normal University, Changchun 130032, China.
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun 130032, China.
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, Changchun 130032, China
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Wang W, Mei L, Yue H, Tao Y, Liu Z. Targeted isolation of cyclooxygenase-2 inhibitors from Saussurea obvallata using affinity ultrafiltration combined with preparative liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1217:123620. [PMID: 36773385 DOI: 10.1016/j.jchromb.2023.123620] [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: 11/25/2022] [Revised: 01/13/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023]
Abstract
Saussurea obvallata (S. obvallata) is widely used in Qinghai-Tibet Plateau with high medicinal and edible values of reducing inflammation. But, the individual components and mechanisms of action still ill-defined. In this work, an integrated method using affinity ultrafiltration combined with preparative liquid chromatography was developed to identify and separate cyclooxygenase-2 (COX-2) inhibitors from S. obvallata. The sample was pretreated using on-line medium pressure liquid chromatography to yield the active fraction. Then, the potential COX-2 ligands were screened out using affinity ultrafiltration from the targeted fraction and the identified compounds were isolated via preparative liquid chromatography. As a result, four main compounds, coniferin (1), syringin (2), roseoside (3) and grasshopper ketone (4) were targeted isolated with IC50 values of 12.34 ± 1.81, 4.04 ± 0.43, 13.91 ± 2.46 and 7.97 ± 1.21 µM, respectively. Results of this work demonstrated that the developed strategy was effective for the targeted separation of COX-2 inhibitors from natural product extracts.
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Affiliation(s)
- Weidong Wang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Lijuan Mei
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, CAS, Xining, China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, CAS, Xining, China
| | - Yanduo Tao
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, CAS, Xining, China.
| | - Zenggen Liu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, Hubei, China.
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4
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Wu T, Hou W, Liu C, Li S, Zhang Y. Efficient Combination of Complex Chromatography, Molecular Docking and Enzyme Kinetics for Exploration of Acetylcholinesterase Inhibitors from Poria cocos. Molecules 2023; 28:molecules28031228. [PMID: 36770895 PMCID: PMC9920314 DOI: 10.3390/molecules28031228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023] Open
Abstract
Poria cocos (P. cocos) is a traditional Chinese medicinal product with the same origin as medicine and food. It has diuretic, anti-inflammatory and liver protection properties, and has been widely used in a Chinese medicine in the treatment of Alzheimer's disease (AD). This study was conducted to explore the activity screening, isolation of acetylcholinesterase inhibitors (AChEIs), and in vitro inhibiting effect of P. cocos. The aim was to develop a new extraction process optimization method based on the Matlab genetic algorithm combined with a traditional orthogonal experiment. Moreover, bio-affinity ultrafiltration combined with molecular docking was used to screen and evaluate the activity of the AChEIs, which were subsequently isolated and purified using high-speed counter-current chromatography (HSCCC) and semi-preparative high-performance liquid chromatography (semi-preparative HPLC). The change in acetylcholinesterase (AChE) activity was tested using an enzymatic reaction kinetics experiment to reflect the inhibitory effect of active compounds on AChE and explore its mechanism of action. Five potential AChEIs were screened via bio-affinity ultrafiltration. Molecular docking results showed that they had good binding affinity for the active site of AChE. Meanwhile, the five active compounds had reversible inhibitory effects on AChE: Polyporenic acid C and Tumulosic acid were non-competitive inhibitors; 3-Epidehydrotumulosic acid was a mixed inhibitor; and Pachymic acid and Dehydrotrametenolic acid were competitive inhibitors. This study provided a basis for the comprehensive utilization of P. cocos and drug development for the treatment of AD.
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Affiliation(s)
- Tong Wu
- College of Pharmacy, Changchun University of Chinese Medicine, No. 1035 Jingyue Street, Nanguan District, Changchun 130117, China
| | - Wanchao Hou
- College of Pharmacy, Jilin University, No. 2699 Qianjin Road, Chaoyang District, Changchun 130012, China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
- Correspondence: (C.L.); (S.L.); Tel.: +86-431-86168777 (C.L.)
| | - Sainan Li
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
- Correspondence: (C.L.); (S.L.); Tel.: +86-431-86168777 (C.L.)
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun 130032, China
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Rajput VS, Runthala A, Khan IA. Shikimate Kinase Inhibitors: An Update on Promising Strategy against Mycobacterium tuberculosis. Curr Drug Targets 2023; 24:388-405. [PMID: 36752299 DOI: 10.2174/1389450124666230208102645] [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: 07/04/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 02/09/2023]
Abstract
Humanity has been battling with tuberculosis (TB) for a long period, and despite the availability of drugs well-known to act against the deadly microbe, the menace is still very far from reaching its end. Moreover, problems related to TB chemotherapy, such as lengthy treatment periods leading to poor patient compliance, increasing drug resistance, and association with another deadlier disease HIV-AIDS, make the situation alarming, thereby pressing the need for the discovery of new potent drugs urgently. Therefore, a drug target that is essential for survival and exclusive to M. tuberculosis presents a promising platform to explore novel molecules against the microorganism for better pathogen clearance with minimal toxicity. The shikimate pathway that leads to the synthesis of essential aromatic amino acids is one such attractive target. Shikimate kinase, the fifth enzyme of this pathway, converts shikimate to shikimate-3-phosphate by using ATP as a cosubstrate. Targeting shikimate kinase could be an effective strategy in light of its essentiality and absence of any homologue in mammals. This review discusses different strategies adopted for discovering novel compounds or scaffolds targeting M. tuberculosis shikimate kinase (MtSK) in vitro. The application of substrate analogues, their structure, and ligand-based approach for screening a library of anti-mycobacterial compounds, marine-derived molecules, and commercially available libraries have yielded promising MtSK inhibitors exhibiting micro-molar activities. To develop these leads into future drugs with minimum off-target effects on the host microenvironment, the molecules need to be structurally optimized for improved activities against enzymes and whole-cell organisms.
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Affiliation(s)
- Vikrant Singh Rajput
- Department of Biomedical Engineering, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817, Ajmer, Rajasthan, India
| | - Ashish Runthala
- Department of Bio-Technology, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
| | - Inshad Ali Khan
- Department of Microbiology, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, 305817, Ajmer, Rajasthan, India
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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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Feng H, Chen G, Zhang Y, Guo M. Potential Multifunctional Bioactive Compounds from Dysosma versipellis Explored by Bioaffinity Ultrafiltration-HPLC/MS with Topo I, Topo II, COX-2 and ACE2. J Inflamm Res 2022; 15:4677-4692. [PMID: 35996684 PMCID: PMC9392260 DOI: 10.2147/jir.s371830] [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: 04/22/2022] [Accepted: 07/22/2022] [Indexed: 11/23/2022] Open
Abstract
Background Dysosma versipellis (D. versipellis) has been traditionally used as a folk medicine for ages. However, the specific phytochemicals responsible for their correlated anti-inflammatory, anti-proliferative and antiviral activities remain unknown. Purpose This study aimed to explore the specific active components in D. versipellis responsible for its potential anti-inflammatory, anti-proliferative, and antiviral effects, and further elucidate the corresponding mechanisms of action. Methods Bioaffinity ultrafiltration coupled to liquid chromatography–mass spectrometry (UF-LC/MS) was firstly hired to fast screen for the anti-inflammatory, anti-proliferative and antiviral compounds from rhizomes of D. versipellis, and then further validation was conducted using in vitro inhibition assays and molecular docking. Results A total of 12, 12, 9 and 12 phytochemicals with considerable affinities to Topo I, Topo II, COX-2 and ACE2 were fished out, respectively. The anti-proliferative assay in vitro indicated that podophyllotoxin and quercetin exhibited comparably strong inhibitory rates on A549 and HT-29 cells compared with 5-FU and etoposide. Meanwhile, kaempferol displayed prominent dose-dependent inhibition against COX-2 with IC50 value at 0.36 ± 0.02 μM lower than indomethacin at 0.73 ± 0.07 μM. Furthermore, quercetin exerted stronger inhibitory effect against ACE2 with IC50 value at 104.79 ± 8.26 μM comparable to quercetin 3-O-glucoside at 135.25 ± 6.54 μM. Conclusion We firstly showcased an experimental investigation on the correlations between bioactive phytochemicals of D. versipellis and their multiple drug targets reflecting its potential pharmacological activities, and further constructed a multi-target and multi-component network to decipher its empirical traditional applications. It could not only offer a reliable and valuable experimental basis to better comprehend the curative effects of D. versipellis but also provide more new insights and strategies for other traditional medicinal plants.
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Affiliation(s)
- Huixia Feng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Yongli Zhang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
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8
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Hu ZZ, Sha XM, Zhang L, Zha MJ, Tu ZC. From Fish Scale Gelatin to Tyrosinase Inhibitor: A Novel Peptides Screening Approach Application. Front Nutr 2022; 9:853442. [PMID: 35369091 PMCID: PMC8973439 DOI: 10.3389/fnut.2022.853442] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
Bioaffinity ultrafiltration combined with LC-Orbitrap-MS/MS was applied for the first time to achieve rapid screening and identification of tyrosinase inhibitory peptides (TYIPs) from grass carp scale gelatin hydrolysates. The binding mode of TYIPs with tyrosinase was investigated by molecular docking technology. The whitening effect of TYIPs was further studied by evaluating the tyrosinase activity and melanin content in mouse B16F10 cells. Four new TYIPs were screened from hydrolysates, among which DLGFLARGF showed the strongest tyrosinase inhibition with an IC50 value of 3.09 mM. Molecular docking showed that hydrogen bonds were the main driving force in the interaction between the peptide DLGFLARGF and tyrosinase. The addition of DLGFLARGF significantly inhibited the tyrosinase activity and melanin production of B16F10 melanoma cells. These results suggest that DLGFLARGF is a promising skin whitening agent for the treatment of potential pigment-related diseases.
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Affiliation(s)
- Zi-Zi Hu
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering & College of Life Science, Jiangxi Normal University, Nanchang, China
| | - Xiao-Mei Sha
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering & College of Life Science, Jiangxi Normal University, Nanchang, China
- *Correspondence: Xiao-Mei Sha
| | - Lu Zhang
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering & College of Life Science, Jiangxi Normal University, Nanchang, China
| | - Min-Jun Zha
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering & College of Life Science, Jiangxi Normal University, Nanchang, China
| | - Zong-Cai Tu
- National R&D Center for Freshwater Fish Processing, College of Chemistry and Chemical Engineering & College of Life Science, Jiangxi Normal University, Nanchang, China
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
- Zong-Cai Tu
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9
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Hu Q, Chen M, Yan M, Wang P, Lei H, Xue H, Ma Q. Comprehensive analysis of Sini decoction and investigation of acid-base self-assembled complexes using cold spray ionization mass spectrometry. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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10
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Feng H, Chen G, Zhang Y, Guo M. Exploring Multifunctional Bioactive Components from Podophyllum sinense Using Multi-Target Ultrafiltration. Front Pharmacol 2021; 12:749189. [PMID: 34759823 PMCID: PMC8573357 DOI: 10.3389/fphar.2021.749189] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/20/2021] [Indexed: 12/18/2022] Open
Abstract
Podophyllum sinense (P. sinense) has been used as a traditional herbal medicine for ages due to its extensive pharmaceutical activities, including antiproliferative, anti-inflammatory, antiviral, insecticidal effects, etc. Nevertheless, the specific bioactive constituents responsible for its antiproliferative, anti-inflammatory, and antiviral activities remain elusive, owing to its complicated and diversified chemical components. In order to explore these specific bioactive components and their potential interaction targets, affinity ultrafiltration with multiple drug targets coupled with high performance liquid chromatography/mass spectrometry (UF–HPLC/MS) strategy was developed to rapidly screen out and identify bioactive compounds against four well-known drug targets that are correlated to the application of P. sinense as a traditional medicine, namely, Topo I, Topo II, COX-2, and ACE2. As a result, 7, 10, 6, and 7 phytochemicals were screened out as the potential Topo I, Topo II, COX-2, and ACE2 ligands, respectively. Further confirmation of these potential bioactive components with antiproliferative and COX-2 inhibitory assays in vitro was also implemented. Herein, diphyllin and podophyllotoxin with higher EF values demonstrated higher inhibitory rates against A549 and HT-29 cells as compared with those of 5-FU and etoposide. The IC50 values of diphyllin were calculated at 6.46 ± 1.79 and 30.73 ± 0.56 μM on A549 and HT-29 cells, respectively. Moreover, diphyllin exhibited good COX-2 inhibitory activity with the IC50 value at 1.29 ± 0.14 μM, whereas indomethacin was 1.22 ± 0.08 μM. In addition, those representative constituents with good affinity on Topo I, Topo II, COX-2, or ACE2, such as diphyllin, podophyllotoxin, and diphyllin O-glucoside, were further validated with molecular docking analysis. Above all, the integrated method of UF–HPLC/MS with multiple drug targets rapidly singled out multi-target bioactive components and partly elucidated their action mechanisms regarding its multiple pharmacological effects from P. sinense, which could provide valuable information about its further development for the new multi-target drug discovery from natural medicines.
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Affiliation(s)
- Huixia Feng
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Yongli Zhang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China.,Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
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11
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Chen G, Seukep AJ, Guo M. Recent Advances in Molecular Docking for the Research and Discovery of Potential Marine Drugs. Mar Drugs 2020; 18:md18110545. [PMID: 33143025 PMCID: PMC7692358 DOI: 10.3390/md18110545] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/28/2022] Open
Abstract
Marine drugs have long been used and exhibit unique advantages in clinical practices. Among the marine drugs that have been approved by the Food and Drug Administration (FDA), the protein–ligand interactions, such as cytarabine–DNA polymerase, vidarabine–adenylyl cyclase, and eribulin–tubulin complexes, are the important mechanisms of action for their efficacy. However, the complex and multi-targeted components in marine medicinal resources, their bio-active chemical basis, and mechanisms of action have posed huge challenges in the discovery and development of marine drugs so far, which need to be systematically investigated in-depth. Molecular docking could effectively predict the binding mode and binding energy of the protein–ligand complexes and has become a major method of computer-aided drug design (CADD), hence this powerful tool has been widely used in many aspects of the research on marine drugs. This review introduces the basic principles and software of the molecular docking and further summarizes the applications of this method in marine drug discovery and design, including the early virtual screening in the drug discovery stage, drug target discovery, potential mechanisms of action, and the prediction of drug metabolism. In addition, this review would also discuss and prospect the problems of molecular docking, in order to provide more theoretical basis for clinical practices and new marine drug research and development.
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Affiliation(s)
- Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement & Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (G.C.); (A.J.S.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
| | - Armel Jackson Seukep
- Key Laboratory of Plant Germplasm Enhancement & Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (G.C.); (A.J.S.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Buea, P.O. Box 63 Buea, Cameroon
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement & Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; (G.C.); (A.J.S.)
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
- Innovation Academy for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai 201203, China
- Correspondence: ; Tel.: +86-27-8770-0850
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12
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Chang N, Gao J, Niu L, Hou Y, Wang X, Jiang M, Bai G. Integrated artificial neural network analysis and functional cell based affinity mass spectrometry for screening a bifunctional activator of Ca2+ and β2AR in aconite. J Pharm Biomed Anal 2020; 190:113506. [DOI: 10.1016/j.jpba.2020.113506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 12/20/2022]
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13
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Liu C, Hou W, Li S, Tsao R. Extraction and isolation of acetylcholinesterase inhibitors from Citrus limon peel using an in vitro method. J Sep Sci 2020; 43:1531-1543. [PMID: 31999045 DOI: 10.1002/jssc.201901252] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/11/2020] [Accepted: 01/25/2020] [Indexed: 02/06/2023]
Abstract
A simple and efficient ultrafiltration-liquid chromatography-mass spectrometry-based method was developed for the rapid screening and identification of ligands from Citrus limon peel, which are suitable acetylcholinesterase inhibitors. Subsequently, the anti-Alzheimer's activity of these compounds was assessed using a PC12 cell model. Six major compounds, viz. neoeriocitrin, isonaringin, naringin, hesperidin, neohesperidin, and limonin, were identified as potent acetylcholinesterase inhibitors. A continuous and efficient online method, which involved the use of a microwave-assisted extraction device, solvent concentration tank, and centrifugal partition chromatography column, was developed for the scale-up of these compounds, and the obtained compounds presented high purity. Next, their bioactivity was evaluated using a PC12 cell model. This novel approach, which was based on ultrafiltration-liquid chromatography-mass spectrometry, microwave-assisted extraction online coupled with solvent concentration tank, and centrifugal partition chromatography along with in vitro evaluation, could represent a powerful tool for the screening and extraction of acetylcholinesterase inhibitors from complex matrices, and could be a useful platform for the large-scale production of bioactive and nutraceutical ingredients.
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Affiliation(s)
- Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Wanchao Hou
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Sainan Li
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Rong Tsao
- Guelph Research and Development Center, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada
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14
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Chen G, Fan M, Liu Y, Sun B, Liu M, Wu J, Li N, Guo M. Advances in MS Based Strategies for Probing Ligand-Target Interactions: Focus on Soft Ionization Mass Spectrometric Techniques. Front Chem 2019; 7:703. [PMID: 31709232 PMCID: PMC6819514 DOI: 10.3389/fchem.2019.00703] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022] Open
Abstract
The non-covalent interactions between small drug molecules and disease-related proteins (ligand-target interactions) mediate various pharmacological processes in the treatment of different diseases. The development of the analytical methods to assess those interactions, including binding sites, binding energies, stoichiometry and association-dissociation constants, could assist in clarifying the mechanisms of action, precise treatment of targeted diseases as well as the targeted drug discovery. For the last decades, mass spectrometry (MS) has been recognized as a powerful tool to study the non-covalent interactions of the ligand-target complexes with the characteristics of high sensitivity, high-resolution, and high-throughput. Soft ionization mass spectrometry, especially the electrospray mass spectrometry (ESI-MS) and matrix assisted laser desorption ionization mass spectrometry (MALDI-MS), could achieve the complete transformation of the target analytes into the gas phase, and subsequent detection of the small drug molecules and disease-related protein complexes, and has exerted great advantages for studying the drug ligands-protein targets interactions, even in case of identifying active components as drug ligands from crude extracts of medicinal plants. Despite of other analytical techniques for this purpose, such as the NMR and X-ray crystallography, this review highlights the principles, research hotspots and recent applications of the soft ionization mass spectrometry and its hyphenated techniques, including hydrogen-deuterium exchange mass spectrometry (HDX-MS), chemical cross-linking mass spectrometry (CX-MS), and ion mobility spectrometry mass spectrometry (IMS-MS), in the study of the non-covalent interactions between small drug molecules and disease-related proteins.
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Affiliation(s)
- Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China
| | - Minxia Fan
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China
- Graduate University of Chinese Academy of Sciences, Beijing, China
| | - Ye Liu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China
| | - Baoqing Sun
- State Key Laboratory of Respiratory Disease, National Clinical Center for Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Meixian Liu
- State Key Laboratory for Quality Research of Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Jianlin Wu
- State Key Laboratory for Quality Research of Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Na Li
- State Key Laboratory for Quality Research of Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, China
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15
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Chen GL, Fan MX, Wu JL, Li N, Guo MQ. Antioxidant and anti-inflammatory properties of flavonoids from lotus plumule. Food Chem 2019; 277:706-712. [DOI: 10.1016/j.foodchem.2018.11.040] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 11/06/2018] [Accepted: 11/07/2018] [Indexed: 12/31/2022]
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16
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Chen G, Huang BX, Guo M. Current advances in screening for bioactive components from medicinal plants by affinity ultrafiltration mass spectrometry. PHYTOCHEMICAL ANALYSIS : PCA 2018; 29:375-386. [PMID: 29785715 DOI: 10.1002/pca.2769] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/08/2018] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Medicinal plants have played an important role in maintaining human health for thousands of years. However, the interactions between the active components in medicinal plants and some certain biological targets during a disease are still unclear in most cases. OBJECTIVE To conduct the high-throughput screening for small active molecules that can interact with biological targets, which is of great theoretical significance and practical value. METHODOLOGY The ultrafiltration mass spectrometry (UF-LC/MS) is a powerful bio-analytical method by combining affinity ultrafiltration and liquid chromatography-mass spectrometry (LC/MS), which could rapidly screen and identify small active molecules that bind to biological targets of interest at the same time. Compared with other analytical methods, affinity UF-LC/MS has the characteristics of fast, sensitive and high throughput, and is especially suitable for the complicated extracts of medicinal plants. RESULTS In this review, the basic principle, characteristics and some most recent challenges in UF-LC/MS have been demonstrated. Meanwhile, the progress and applications of affinity UF-LC/MS in the discovery of the active components from natural medicinal plants and the interactions between small molecules and biological target proteins are also briefly summarised. In addition, the future directions for UF-LC/MS are also prospected. CONCLUSION Affinity UF-LC/MS is a powerful tool in studies on the interactions between small active molecules and biological protein targets, especially in the high-throughput screening of active components from the natural medicinal plants.
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Affiliation(s)
- Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, 430074, Wuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, 430074, Wuhan, China
| | - Bill X Huang
- Laboratory of Molecular Signaling, National Institute of Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland, USA
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, 430074, Wuhan, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, 430074, Wuhan, China
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17
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Schoenenberger B, Wszolek A, Meier R, Brundiek H, Obkircher M, Wohlgemuth R. Recombinant AroL-Catalyzed Phosphorylation for the Efficient Synthesis of Shikimic Acid 3-Phosphate. Biotechnol J 2018; 13:e1700529. [PMID: 29697210 DOI: 10.1002/biot.201700529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 04/03/2018] [Indexed: 01/01/2023]
Abstract
Shikimic acid 3-phosphate, as a central metabolite of the shikimate pathway, is of high interest as enzyme substrate for 5-enolpyruvoyl-shikimate 3-phosphate synthase, a drug target in infectious diseases and a prime enzyme target for the herbicide glyphosate. As the important substrate shikimic acid 3-phosphate is only accessible via a chemical multi-step route, a new straightforward preparative one-step enzymatic phosphorylation of shikimate using a stable recombinant shikimate kinase has been developed for the selective phosphorylation of shikimate in the 3-position. Highly active shikimate kinase is produced by straightforward expression of a synthetic aroL gene in Escherichia coli. The time course of the shikimate kinase-catalyzed phosphorylation is investigated by 1 H- and 31 P-NMR, using the phosphoenolpyruvate/pyruvate kinase system for the regeneration of the ATP cofactor. This enables the development of a quantitative biocatalytic 3-phosphorylation of shikimic acid. After a standard workup procedure, a good yield of shikimic acid 3-phosphate, with high HPLC- and NMR purity, is obtained. This efficient biocatalytic synthesis of shikimic acid 3-phosphate is superior to any other method and has been successfully scaled up to multi-gram scale.
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Affiliation(s)
| | - Agata Wszolek
- Enzymicals, Walther-Rathenau-Strasse 49a, 17489, Greifswald, Germany
| | - Roland Meier
- Sigma-Aldrich, Member of Merck Group, Industriestrasse 25, CH-9470, Buchs, Switzerland
| | - Henrike Brundiek
- Enzymicals, Walther-Rathenau-Strasse 49a, 17489, Greifswald, Germany
| | - Markus Obkircher
- Sigma-Aldrich, Member of Merck Group, Industriestrasse 25, CH-9470, Buchs, Switzerland
| | - Roland Wohlgemuth
- Sigma-Aldrich, Member of Merck Group, Industriestrasse 25, CH-9470, Buchs, Switzerland
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18
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Qin S, Meng M, Yang D, Bai W, Lu Y, Peng Y, Song G, Wu Y, Zhou Q, Zhao S, Huang X, McCorvy JD, Cai X, Dai A, Roth BL, Hanson MA, Liu ZJ, Wang MW, Stevens RC, Shui W. High-throughput identification of G protein-coupled receptor modulators through affinity mass spectrometry screening. Chem Sci 2018; 9:3192-3199. [PMID: 29732102 PMCID: PMC5916221 DOI: 10.1039/c7sc04698g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 02/19/2018] [Indexed: 12/24/2022] Open
Abstract
High-throughput identification of GPCR modulators through affinity MS screening.
G protein-coupled receptors (GPCRs) represent the largest class of cell surface proteins and thus constitute an important family of therapeutic targets. Therefore, significant effort has been put towards the identification of novel ligands that can modulate the activity of a GPCR target with high efficacy and selectivity. However, due to limitations inherent to the most common techniques for GPCR ligand discovery, there is a pressing need for more efficient and effective ligand screening methods especially for the identification of potential allosteric modulators. Here we present a high-throughput, label-free and unbiased screening approach for the identification of small molecule ligands towards GPCR targets based on affinity mass spectrometry. This new approach features the usage of target-expressing cell membranes rather than purified proteins for ligand screening and allows the detection of both orthosteric and allosteric ligands targeting specific GPCRs. Screening a small compound library with this approach led to the rapid discovery of an antagonist for the 5-HT receptor and four positive allosteric modulators for GLP-1 receptor that were not previously reported.
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Affiliation(s)
- Shanshan Qin
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China .
| | - Mengmeng Meng
- College of Pharmacy , Nankai University , 300071 , Tianjin , China
| | - Dehua Yang
- The National Center for Drug Screening , The CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 201203 , Shanghai , China .
| | - Wenwen Bai
- College of Pharmacy , Nankai University , 300071 , Tianjin , China
| | - Yan Lu
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China . .,School of Life Science and Technology , ShanghaiTech University , 201202 , Shanghai , China
| | - Yao Peng
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China .
| | - Gaojie Song
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China .
| | - Yiran Wu
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China .
| | - Qingtong Zhou
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China .
| | - Suwen Zhao
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China . .,School of Life Science and Technology , ShanghaiTech University , 201202 , Shanghai , China
| | - Xiping Huang
- Department of Pharmacology , Chapel Hill School of Medicine , University of North Carolina , NC 27599 Chapel Hill , USA
| | - John D McCorvy
- Department of Pharmacology , Chapel Hill School of Medicine , University of North Carolina , NC 27599 Chapel Hill , USA
| | - Xiaoqing Cai
- The National Center for Drug Screening , The CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 201203 , Shanghai , China .
| | - Antao Dai
- The National Center for Drug Screening , The CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 201203 , Shanghai , China .
| | - Bryan L Roth
- Department of Pharmacology , Chapel Hill School of Medicine , University of North Carolina , NC 27599 Chapel Hill , USA
| | | | - Zhi-Jie Liu
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China . .,School of Life Science and Technology , ShanghaiTech University , 201202 , Shanghai , China
| | - Ming-Wei Wang
- The National Center for Drug Screening , The CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica , Chinese Academy of Sciences , 201203 , Shanghai , China . .,School of Life Science and Technology , ShanghaiTech University , 201202 , Shanghai , China.,School of Pharmacy , Fudan University , 201203 , Shanghai , China
| | - Raymond C Stevens
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China . .,School of Life Science and Technology , ShanghaiTech University , 201202 , Shanghai , China
| | - Wenqing Shui
- iHuman Institute , ShanghaiTech University , 201210 , Shanghai , China . .,School of Life Science and Technology , ShanghaiTech University , 201202 , Shanghai , China
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19
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Xu Z, Liu R, Guan H. Dual-target inhibitor screening against thrombin and factor Xa simultaneously by mass spectrometry. Anal Chim Acta 2017; 990:1-10. [PMID: 29029731 DOI: 10.1016/j.aca.2017.07.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/19/2017] [Accepted: 07/28/2017] [Indexed: 12/12/2022]
Abstract
An accurate, rapid, and cost-effective methodology for enzyme assay is highly demanded to screen the effect of compounds on target at the molecular level. Thrombin (EC 3.4.21.5) and factor Xa (FXa, EC 3.4.21.6) have been identified as the critical targets for the development of potential drugs with anticoagulant activity. In this study, a rapid, sensitive and accurate assay based on UHPLC-MS/MS method has been developed for inhibitor screening against thrombin and factor Xa simultaneously. For thrombin and factor Xa, the Michaelis-Menten constants (Km) were calculated to be 6.14 and 57.27 μM, respectively. The inhibition constants (Ki) for two known inhibitors, argatroban and rivaroxaban, were determined to be 16.23 and 0.41 nM, respectively. The assay was further validated through the determination of a high Z' factor value of 0.89. Finally, the developed assay was applied to screen a chemical library against two enzymes. Three hit compounds belonging to a class of sulfated polysaccharides were identified and their targets of inhibition action were further evaluated. The results indicated that the dual-target assay by UHPLC-MS/MS analysis could be used as a reliable method for screening anticoagulant agents.
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Affiliation(s)
- Zhe Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266273, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266271, China.
| | - Ruonan Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, Qingdao 266003, China
| | - Huashi Guan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Shandong Provincial Key Laboratory of Glycoscience and Glycoengineering, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts, Innovation Center for Marine Drugs Screening and Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266273, China; Marine Biomedical Research Institute of Qingdao, Qingdao 266271, China
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20
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Li S, Zhang J, Li S, Liu C, Liu S, Liu Z. Extraction and separation of lactate dehydrogenase inhibitors from Poria cocos (Schw.) Wolf based on a hyphenated technique and in vitro methods. J Sep Sci 2017; 40:1773-1783. [PMID: 28217983 DOI: 10.1002/jssc.201700054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 02/05/2017] [Accepted: 02/09/2017] [Indexed: 12/20/2022]
Abstract
Stroke is one of the most common diseases worldwide. Lactate dehydrogenase inhibitors are widely used in the treatment of ischemic stroke, with natural products considered a promising source of lactate dehydrogenase inhibitors. In this study, ultrafiltration liquid chromatography coupled with mass spectrometry was used for the screening and identification of lactate dehydrogenase inhibitors from Poria cocos. Five lactate dehydrogenase inhibitors were selected: dehydropachymic acid, pachymic acid, dehydrotrametenolic acid, trametenolic acid, and eburicoic acid. The inhibitors were extracted and isolated with purities of 96.75, 98.15, 97.25, 95.46, and 94.88%, respectively, by using a new "hyphenated" strategy of microwave-assisted extraction coupled with counter-current chromatography and centrifugal partition chromatography by a two-phase solvent system of n-hexane/ethyl acetate/ethanol/water at the volume ratio 0.965:1.000:0.936:0.826 v/v/v/v. The bioactivity of the isolated compounds was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay in PC12 cells. The results also showed that the hyphenated technique of microwave-assisted extraction coupled with counter-current chromatography and centrifugal partition chromatography was an efficient method for the continuous extraction and online isolation of chemical constituents from medicinal herbs. Furthermore, the research route based on the activity screening, extraction, separation, and activity verification of the compounds offered advantages of efficiency, orientation, and objectivity.
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Affiliation(s)
- Sainan Li
- Central Laboratory, Changchun Normal University, Changchun, China.,Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Jianxu Zhang
- Department of Rehabilitation, Second Branch of the First Hospital of Jilin University, Changchun, China
| | - Senlin Li
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Shu Liu
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
| | - Zhiqiang Liu
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
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21
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Chen GL, Tian YQ, Wu JL, Li N, Guo MQ. Antiproliferative activities of Amaryllidaceae alkaloids from Lycoris radiata targeting DNA topoisomerase I. Sci Rep 2016; 6:38284. [PMID: 27922057 PMCID: PMC5138836 DOI: 10.1038/srep38284] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/07/2016] [Indexed: 02/06/2023] Open
Abstract
Crude Amaryllidaceae alkaloids (AAs) extracted from Lycoris radiata are reported to exhibit significant anti-cancer activity. However, the specific alkaloids responsible for the pharmacodynamic activity and their targets still remain elusive. In this context, we strived to combine affinity ultrafiltration with topoisomerase I (Top I) as a target enzyme aiming to fish out specific bioactive AAs from Lycoris radiata. 11 AAs from Lycoris radiata were thus screened out, among which hippeastrine (peak 5) with the highest Enrichment factor (EF) against Top I exhibited good dose-dependent inhibition with IC50 at 7.25 ± 0.20 μg/mL comparable to camptothecin (positive control) at 6.72 ± 0.23 μg/mL. The molecular docking simulation further indicated the inhibitory mechanism between Top I and hippeastrine. The in vitro antiproliferation assays finally revealed that hippeastrine strongly inhibited the proliferation of HT-29 and Hep G2 cells in an intuitive dose-dependent manner with the IC50 values at 3.98 ± 0.29 μg/mL and 11.85 ± 0.20 μg/mL, respectively, and also induced significant cellular morphological changes, which further validated our screening method and the potent antineoplastic effects. Collectively, these results suggested that hippeastrine could be a very promising anticancer candidate for the therapy of cancer in the near future.
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Affiliation(s)
- Gui-Lin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.,Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong-Qiang Tian
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.,Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Lin Wu
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Na Li
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, Macau
| | - Ming-Quan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China
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22
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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: 89] [Impact Index Per Article: 11.1] [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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23
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Lai B, Plan MR, Averesch NJ, Yu S, Kracke F, Lekieffre N, Bydder S, Hodson MP, Winter G, Krömer JO. Quantitative analysis of aromatics for synthetic biology using liquid chromatography. Biotechnol J 2016; 12. [DOI: 10.1002/biot.201600269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/26/2016] [Accepted: 08/02/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Bin Lai
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Manuel R. Plan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland Brisbane Queensland Australia
- Metabolomics Australia (Queensland Node), The University of Queensland Brisbane Queensland Australia
| | - Nils J.H. Averesch
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Shiqin Yu
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Frauke Kracke
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Nicolas Lekieffre
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Sarah Bydder
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland Brisbane Queensland Australia
| | - Mark P. Hodson
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland Brisbane Queensland Australia
- Metabolomics Australia (Queensland Node), The University of Queensland Brisbane Queensland Australia
| | - Gal Winter
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
| | - Jens O. Krömer
- Centre for Microbial Electrochemical Systems (CEMES), The University of Queensland Brisbane Queensland Australia
- Advanced Water Management Centre (AWMC), The University of Queensland Brisbane Queensland Australia
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Masoko P, Mabusa IH, Howard RL. Isolation of alpha-linolenic acid from Sutherlandia frutescens and its inhibition of Mycobacterium tuberculosis' shikimate kinase enzyme. Altern Ther Health Med 2016; 16:366. [PMID: 27639973 PMCID: PMC5027073 DOI: 10.1186/s12906-016-1344-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 09/08/2016] [Indexed: 11/10/2022]
Abstract
BACKGROUND Sutherlandia frutescens (L) R.Br. is one of traditional herbal medicines that formed the basis of primary health care systems since the earliest days and is still widely used. Sutherlandia is prescribed for people with tuberculosis (TB), but is still not known which compound(s) acts against M. tuberculosis and its mode of action. The aim of this study was to identify and isolate antimycobacterial compounds from S. frutescens extracts against shikimate kinase, a drug target for M. tuberculosis. METHODS S. frutescens were dried, ground and extracted with ethanol, dichloromethane: methanol and water. Fractionation and separation of compounds was done with column chromatography. Chromatograms were developed in butanol/acetic acid/water (BAW) [21:6:3]; chloroform/methanol/water/formic acid (CMWF1) [60:15:2:1] and (CMWF2) [21:9:1:0.3]. Separation and isolation of active compounds were done using preparative HPLC. The activity of the plant extracts were also screened against shikimate kinase enzyme (MtbSK) using the MtbSK inhibition assay. RESULTS The DCM: MeOH (1:1) extract showed a high percentage inhibition (with an IC50 of 0.1 μg/ml) of MtbSK and the purified inhibitor was an Alpha-Linolenic Acid (ALA) compound and it had a significant IC50 of 3.7 μg/ml. CONCLUSIONS This study demonstrated that ALA from S. frustescens is an inhibitor of shikimate kinase a good drug target for M. tuberculosis.
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Chen G, Tian Y, Guo M. Screening for inhibitors of topoisomerase I from Lycoris radiata by combining ultrafiltration with liquid chromatography/mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2016; 30 Suppl 1:95-99. [PMID: 27539422 DOI: 10.1002/rcm.7649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Although crude Amaryllidaceae alkaloids (AAs) extracted from Lycoris radiata are reported to exhibit significant anti-cancer activity, both the specific responsible alkaloid(s) and their targets remain elusive. Screening anti-cancer AAs targeted on topoisomerase I from crude AAs could be very helpful in tackling these two challenging questions. METHODS An ultrafiltration method combined with liquid chromatography/electrospray ionization mass spectrometry (UF-LC/MS) was developed to screen for the inhibitors of topoisomerase I, which has been reported to mediate DNA unwinding during carcinoma proliferation. Enrichment factors (EFs) of different AAs were used to evaluate the binding affinity between AAs and topoisomerase I, and the AAs with higher EFs were further tested to validate the method. RESULTS Eleven AAs from Lycoris radiata (ten of which were identified) were screened using UF-LC/MS, and a glaring discrepancy in EFs was revealed for the first time. One of the AAs, hippeastrine, with the highest EF at 49.3%, was further tested against topoisomerase I, and the IC50 value of hippeastrine was determined to be 23.0 μmol/L, which is comparable with the well-known anti-cancer drug camptothecin at 19.3 μmol/L. CONCLUSIONS A simple, rapid and effective screening method using UF-LC/MS was developed and successfully applied to screen candidate inhibitors of topoisomerase I from crude AAs in Lycoris radiata, which may pave the way to further understand the potential anti-cancer constituents and mechanisms of Lycoris radiata. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
- Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongqiang Tian
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
- Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China
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Novel Chemical Ligands to Ebola Virus and Marburg Virus Nucleoproteins Identified by Combining Affinity Mass Spectrometry and Metabolomics Approaches. Sci Rep 2016; 6:29680. [PMID: 27403722 PMCID: PMC4940736 DOI: 10.1038/srep29680] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/20/2016] [Indexed: 12/25/2022] Open
Abstract
The nucleoprotein (NP) of Ebola virus (EBOV) and Marburg virus (MARV) is an essential component of the viral ribonucleoprotein complex and significantly impacts replication and transcription of the viral RNA genome. Although NP is regarded as a promising antiviral druggable target, no chemical ligands have been reported to interact with EBOV NP or MARV NP. We identified two compounds from a traditional Chinese medicine Gancao (licorice root) that can bind both NPs by combining affinity mass spectrometry and metabolomics approaches. These two ligands, 18β-glycyrrhetinic acid and licochalcone A, were verified by defined compound mixture screens and further characterized with individual ligand binding assays. Accompanying biophysical analyses demonstrate that binding of 18β-glycyrrhetinic acid to EBOV NP significantly reduces protein thermal stability, induces formation of large NP oligomers, and disrupts the critical association of viral ssRNA with NP complexes whereas the compound showed no such activity on MARV NP. Our study has revealed the substantial potential of new analytical techniques in ligand discovery from natural herb resources. In addition, identification of a chemical ligand that influences the oligomeric state and RNA-binding function of EBOV NP sheds new light on antiviral drug development.
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Mehra R, Rajput VS, Gupta M, Chib R, Kumar A, Wazir P, Khan IA, Nargotra A. Benzothiazole Derivative as a Novel Mycobacterium tuberculosis Shikimate Kinase Inhibitor: Identification and Elucidation of Its Allosteric Mode of Inhibition. J Chem Inf Model 2016; 56:930-40. [PMID: 27149193 DOI: 10.1021/acs.jcim.6b00056] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mycobacterium tuberculosis shikimate kinase (Mtb-SK) is a key enzyme involved in the biosynthesis of aromatic amino acids through the shikimate pathway. Since it is proven to be essential for the survival of the microbe and is absent from mammals, it is a promising target for anti-TB drug discovery. In this study, a combined approach of in silico similarity search and pharmacophore building using already reported inhibitors was used to screen a procured library of 20,000 compounds of the commercially available ChemBridge database. From the in silico screening, 15 hits were identified, and these hits were evaluated in vitro for Mtb-SK enzyme inhibition. Two compounds presented significant enzyme inhibition with IC50 values of 10.69 ± 0.9 and 46.22 ± 1.2 μM. The best hit was then evaluated for the in vitro mode of inhibition where it came out to be an uncompetitive and noncompetitive inhibitor with respect to shikimate (SKM) and ATP, respectively, suggesting its binding at an allosteric site. Potential binding sites of Mtb-SK were identified which confirmed the presence of an allosteric binding pocket apart from the ATP and SKM binding sites. The docking simulations were performed at this pocket in order to find the mode of binding of the best hit in the presence of substrates and the products of the enzymatic reaction. Molecular dynamics (MD) simulations elucidated the probability of inhibitor binding at the allosteric site in the presence of ADP and shikimate-3-phosphate (S-3-P), that is, after the formation of products of the reaction. The inhibitor binding may prevent the release of the product from Mtb-SK, thereby inhibiting its activity. The binding stability and the key residue interactions of the inhibitor to this product complex were also revealed by the MD simulations. Residues ARG43, ILE45, and PHE57 were identified as crucial that were involved in interactions with the best hit. This is the first report of an allosteric binding site of Mtb-SK, which could largely address the selectivity issue associated with kinase inhibitors.
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Affiliation(s)
- Rukmankesh Mehra
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Vikrant Singh Rajput
- Clinical Microbiology Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Monika Gupta
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Reena Chib
- Clinical Microbiology Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Amit Kumar
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Priya Wazir
- Instrumentation Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Inshad Ali Khan
- Clinical Microbiology Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
| | - Amit Nargotra
- Discovery Informatics Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India.,Academy of Scientific and Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu 180001, India
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Screening of antitubercular compound library identifies novel shikimate kinase inhibitors of Mycobacterium tuberculosis. Appl Microbiol Biotechnol 2016; 100:5415-26. [DOI: 10.1007/s00253-015-7268-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/26/2015] [Accepted: 12/22/2015] [Indexed: 10/22/2022]
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An in vitro AChE inhibition assay combined with UF-HPLC-ESI-Q-TOF/MS approach for screening and characterizing of AChE inhibitors from roots of Coptis chinensis Franch. J Pharm Biomed Anal 2015; 120:235-40. [PMID: 26760241 DOI: 10.1016/j.jpba.2015.12.025] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 12/14/2015] [Accepted: 12/17/2015] [Indexed: 11/21/2022]
Abstract
In this study, an in vitro acetylcholinesterase (AChE) inhibition assay based on microplate reader combined with ultrafiltration high performance liquid chromatography-electrospray quadrupole time of flight mass (UF-HPLC-ESI-Q-TOF/MS) was developed for the rapid screening and identification of acetylcholinesterase inhibitors (AChEI) from roots of Coptis chinensis Franch. Incubation conditions such as enzyme concentration, incubation time, incubation temperature and co-solvent was optimized so as to get better screening results. Five alkaloids including columbamine, jatrorrhizine, coptisine, palmatine and berberine were found with AChE inhibition activity in the 80% ethanol extract of C. chinensis Franch. The screened compounds were identified by HPLC-DAD-ESI-Q-TOF/MS compared with the reference stands and literatures. The screened results were verified by in vitro AChE inhibition assays, palmatine showed the best AChE inhibitory activities with IC50 values of 36.6μM among the five compounds. Results of the present study indicated that the combinative method using in vitro AChE inhibition assay and UF-HPLC-ESI-Q-TOF/MS could be widely applied for rapid screening and identification of AChEI from complex TCM extract.
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Qin S, Ren Y, Fu X, Shen J, Chen X, Wang Q, Bi X, Liu W, Li L, Liang G, Yang C, Shui W. Multiple ligand detection and affinity measurement by ultrafiltration and mass spectrometry analysis applied to fragment mixture screening. Anal Chim Acta 2015; 886:98-106. [PMID: 26320641 DOI: 10.1016/j.aca.2015.06.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 05/20/2015] [Accepted: 06/04/2015] [Indexed: 12/11/2022]
Abstract
Binding affinity of a small molecule drug candidate to a therapeutically relevant biomolecular target is regarded the first determinant of the candidate's efficacy. Although the ultrafiltration-LC/MS (UF-LC/MS) assay enables efficient ligand discovery for a specific target from a mixed pool of compounds, most previous analysis allowed for relative affinity ranking of different ligands. Moreover, the reliability of affinity measurement for multiple ligands with UF-LC/MS has hardly been strictly evaluated. In this study, we examined the accuracy of K(d) determination through UF-LC/MS by comparison with classical ITC measurement. A single-point K(d) calculation method was found to be suitable for affinity measurement of multiple ligands bound to the same target when binding competition is minimized. A second workflow based on analysis of the unbound fraction of compounds was then developed, which simplified sample preparation as well as warranted reliable ligand discovery. The new workflow implemented in a fragment mixture screen afforded rapid and sensitive detection of low-affinity ligands selectively bound to the RNA polymerase NS5B of hepatitis C virus. More importantly, ligand identification and affinity measurement for mixture-based fragment screens by UF-LC/MS were in good accordance with single ligand evaluation by conventional SPR analysis. This new approach is expected to become a valuable addition to the arsenal of high-throughput screening techniques for fragment-based drug discovery.
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Affiliation(s)
- Shanshan Qin
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Yiran Ren
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Xu Fu
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Jie Shen
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China
| | - Xin Chen
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Quan Wang
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Xin Bi
- Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Wenjing Liu
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Lixin Li
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Guangxin Liang
- Institute of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
| | - Cheng Yang
- High-throughput Molecular Drug Discovery Center, Tianjin Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Wenqing Shui
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
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Li S, Tang Y, Liu C, Zhang Y. Development of a method to screen and isolate potential α-glucosidase inhibitors from Panax japonicus C.A. Meyer by ultrafiltration, liquid chromatography, and counter-current chromatography. J Sep Sci 2015; 38:2014-23. [PMID: 25847676 DOI: 10.1002/jssc.201500064] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 03/13/2015] [Accepted: 03/27/2015] [Indexed: 11/10/2022]
Abstract
A new assay based on ultrafiltration, liquid chromatography and mass spectrometry was developed for the rapid screening and identification of the ligands for α-glucosidase from the extract of Panax japonicus. Six saponins were identified as α-glucosidase inhibitors. Subsequently, the specific binding ligands, namely, notoginsenoside R1 , ginsenoside Rb1 , chikusetsusaponin V, chikusetsusaponin IV, chikusetsusaponin IVa, and ginsenoside Rd (the purities were 94.18, 95.43, 96.09, 93.26, 94.50, 93.86%, respectively) were separated by counter-current chromatography using two-phase solvent systems composed of tert-butyl methyl ether, acetonitrile, 0.1% aqueous formic acid (3.8:1.0:4.4, v/v/v) and the solvent system composed of methylene chloride, isopropanol, methanol, 0.1% aqueous formic acid (5.8:1.0:6.0:2.2, v/v/v). The results demonstrate that ultrafiltration, liquid chromatography and mass spectrometry combined with high-speed counter-current chromatography might provide not only a powerful tool for screening and isolating α-glucosidase inhibitors in complex samples but also a useful platform for discovering bioactive compounds for the prevention and treatment of diabetes mellitus.
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Affiliation(s)
- Sainan Li
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Ying Tang
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun, China
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, Changchun, China
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Gordon S, Simithy J, Goodwin DC, Calderón AI. Selective Mycobacterium tuberculosis Shikimate Kinase Inhibitors as Potential Antibacterials. PERSPECTIVES IN MEDICINAL CHEMISTRY 2015; 7:9-20. [PMID: 25861218 PMCID: PMC4362912 DOI: 10.4137/pmc.s13212] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 01/19/2015] [Accepted: 01/27/2015] [Indexed: 11/08/2022]
Abstract
Owing to the persistence of tuberculosis (TB) as well as the emergence of multidrug-resistant and extensively drug-resistant (XDR) forms of the disease, the development of new antitubercular drugs is crucial. Developing inhibitors of shikimate kinase (SK) in the shikimate pathway will provide a selective target for antitubercular agents. Many studies have used in silico technology to identify compounds that are anticipated to interact with and inhibit SK. To a much more limited extent, SK inhibition has been evaluated by in vitro methods with purified enzyme. Currently, there are no data on in vivo activity of Mycobacterium tuberculosis shikimate kinase (MtSK) inhibitors available in the literature. In this review, we present a summary of the progress of SK inhibitor discovery and evaluation with particular attention toward development of new antitubercular agents.
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Affiliation(s)
- Sara Gordon
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Johayra Simithy
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
| | - Douglas C Goodwin
- Department of Chemistry and Biochemistry, Auburn University, Auburn, AL, USA
| | - Angela I Calderón
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
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Rapid screening natural-origin lipase inhibitors from hypolipidemic decoctions by ultrafiltration combined with liquid chromatography–mass spectrometry. J Pharm Biomed Anal 2015; 104:67-74. [DOI: 10.1016/j.jpba.2014.11.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/03/2014] [Accepted: 11/11/2014] [Indexed: 01/15/2023]
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Simithy J, Gill G, Wang Y, Goodwin DC, Calderón AI. Development of an ESI-LC-MS-Based Assay for Kinetic Evaluation of Mycobacterium tuberculosis Shikimate Kinase Activity and Inhibition. Anal Chem 2015; 87:2129-36. [DOI: 10.1021/ac503210n] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Johayra Simithy
- Department
of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, 4306 Walker Building, Auburn, Alabama 36849, United States
| | - Gobind Gill
- Department
of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
| | - Yu Wang
- Department
of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
| | - Douglas C. Goodwin
- Department
of Chemistry and Biochemistry, Auburn University, 179 Chemistry Building, Auburn, Alabama 36849, United States
| | - Angela I. Calderón
- Department
of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, 4306 Walker Building, Auburn, Alabama 36849, United States
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Song HP, Zhang H, Fu Y, Mo HY, Zhang M, Chen J, Li P. Screening for selective inhibitors of xanthine oxidase from Flos Chrysanthemum using ultrafiltration LC–MS combined with enzyme channel blocking. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 961:56-61. [DOI: 10.1016/j.jchromb.2014.05.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 03/31/2014] [Accepted: 05/04/2014] [Indexed: 01/09/2023]
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36
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Simithy J, Reeve N, Hobrath JV, Reynolds RC, Calderón AI. Identification of shikimate kinase inhibitors among anti-Mycobacterium tuberculosis compounds by LC-MS. Tuberculosis (Edinb) 2014; 94:152-8. [DOI: 10.1016/j.tube.2013.12.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 12/14/2013] [Accepted: 12/19/2013] [Indexed: 11/27/2022]
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Chen X, Li L, Chen S, Xu Y, Xia Q, Guo Y, Liu X, Tang Y, Zhang T, Chen Y, Yang C, Shui W. Identification of inhibitors of the antibiotic-resistance target New Delhi metallo-β-lactamase 1 by both nanoelectrospray ionization mass spectrometry and ultrafiltration liquid chromatography/mass spectrometry approaches. Anal Chem 2013; 85:7957-65. [PMID: 23863032 DOI: 10.1021/ac401732d] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mass spectrometry-based platforms have gained increasing success in discovery of ligands bound to therapeutic targets as drug candidates. We established both a nanoelectrospray ionization mass spectrometry (nanoESI-MS) assay and an ultrafiltration liquid chromatography/mass spectrometry (LC/MS) assay to identify new ligands for New Delhi metallo-β-lactamase 1 (NDM-1), responsible for worldwide antibiotic resistance. To alleviate nonspecific binding of hydrophobic compounds and eliminate false positives typically encountered in the indirect LC/MS-based assay, we introduced a blocking protein in the control, which remarkably enhances the selectivity and accuracy of the indirect approach. Side-by-side comparison of the two MS-based approaches for the first time further reveals unique advantages of the indirect approach, including better reproducibility and tolerance of interference. Moreover, the success of fishing out a potent ligand from a mixture of small-molecule fragments demonstrates great potential of the indirect LC/MS-based approach for constructing a robust screening platform against combinatorial libraries or natural product extracts. More importantly, by combining the results of MS-based analyses, enzymatic activity assay, competition experiments, and structural simulation, we discovered a new compound as a promising drug candidate targeting NDM-1.
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Affiliation(s)
- Xin Chen
- College of Life Sciences and Tianjin State Laboratory of Protein Science, Nankai University, Tianjin, China
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Li T, Liu X, Liu D, Wang Z. Sensitive detection of protein kinase A activity in cell lysates by peptide microarray-based assay. Anal Chem 2013; 85:7033-7. [PMID: 23855559 DOI: 10.1021/ac4010502] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In the present work, the activities of protein kinase A (PKA) in cell lysates have been detected by a peptide microarray-based resonance light scattering assay with gold nanoparticle probes. Highly sensitive detection of PKA activity in 0.1 μg total cell proteins of SHG-44 cell lysate (corresponding to 200 cells) is achieved by a selected peptide substrate. The experimental results also demonstrate that the assay can be employed to evaluate expression levels of PKA activity in different cell lines and chemical (e.g., Forskolin )-mediated PKA activity fluctuation in living cells. In addition, PKA inhibition by the inhibitor (H89) is shown, suggesting the potential for screening PKA inhibitors at the living cell level.
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Affiliation(s)
- Tao Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P R China
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Potterat O, Hamburger M. Concepts and technologies for tracking bioactive compounds in natural product extracts: generation of libraries, and hyphenation of analytical processes with bioassays. Nat Prod Rep 2013; 30:546-64. [DOI: 10.1039/c3np20094a] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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40
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Yang Z, Zhang Y, Sun L, Wang Y, Gao X, Cheng Y. An ultrafiltration high-performance liquid chromatography coupled with diode array detector and mass spectrometry approach for screening and characterising tyrosinase inhibitors from mulberry leaves. Anal Chim Acta 2012; 719:87-95. [DOI: 10.1016/j.aca.2012.01.018] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 01/10/2012] [Accepted: 01/10/2012] [Indexed: 10/14/2022]
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41
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Zhou H, Li H, Zheng Z, Song F, Xing J, Liu Z, Liu S. SCREENING FOR α-GLUCOSIDASE INHIBITORS FROM COPTIDIS-REHMANNIAE HERB COUPLE BY USING ULTRAFILTRATION LIQUID CHROMATOGRAPHY/MASS SPECTROMETRY. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.593225] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Hui Zhou
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
- b Graduate School of Chinese Academy of Sciences , Beijing , P.R. China
| | - Huilin Li
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
| | - Zhong Zheng
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
| | - Fengrui Song
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
| | - Junpeng Xing
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
| | - Zhiqiang Liu
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
| | - Shuying Liu
- a Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun , P.R. China
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Vianna CP, de Azevedo WF. Identification of new potential Mycobacterium tuberculosis shikimate kinase inhibitors through molecular docking simulations. J Mol Model 2011; 18:755-64. [DOI: 10.1007/s00894-011-1113-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Accepted: 04/28/2011] [Indexed: 10/18/2022]
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Jonker N, Kool J, Irth H, Niessen WMA. Recent developments in protein-ligand affinity mass spectrometry. Anal Bioanal Chem 2010; 399:2669-81. [PMID: 21058031 PMCID: PMC3043251 DOI: 10.1007/s00216-010-4350-z] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Revised: 10/16/2010] [Accepted: 10/17/2010] [Indexed: 11/27/2022]
Abstract
This review provides an overview of direct and indirect technologies to screen protein–ligand interactions with mass spectrometry. These technologies have as a key feature the selection or affinity purification of ligands in mixtures prior to detection. Specific fields of interest for these technologies are metabolic profiling of bioactive metabolites, natural extract screening, and the screening of libraries for bioactives, such as parallel synthesis libraries and small combichem libraries. The review addresses the principles of each of the methods discussed, with a focus on developments in recent years, and the applicability of the methods to lead generation and development in drug discovery. Schematic view of the principle of filtration based 96-well affinity selection MS binding assays ![]()
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Affiliation(s)
- Niels Jonker
- BioMolecular Analysis, Department of Chemistry and Pharmaceutical Sciences, Faculty of Sciences, VU University Amsterdam, The Netherlands
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