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Hou X, Sun M, Bao T, Xie X, Wei F, Wang S. Recent advances in screening active components from natural products based on bioaffinity techniques. Acta Pharm Sin B 2020; 10:1800-1813. [PMID: 33163336 PMCID: PMC7606101 DOI: 10.1016/j.apsb.2020.04.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/19/2020] [Accepted: 03/31/2020] [Indexed: 02/08/2023] Open
Abstract
Natural products have provided numerous lead compounds for drug discovery. However, the traditional analytical methods cannot detect most of these active components, especially at their usual low concentrations, from complex natural products. Herein, we reviewed the recent technological advances (2015–2019) related to the separation and screening bioactive components from natural resources, especially the emerging screening methods based on the bioaffinity techniques, including biological chromatography, affinity electrophoresis, affinity mass spectroscopy, and the latest magnetic and optical methods. These screening methods are uniquely advanced compared to other traditional methods, and they can fish out the active components from complex natural products because of the affinity between target and components, without tedious separation works. Therefore, these new tools can reduce the time and cost of the drug discovery process and accelerate the development of more effective and better-targeted therapeutic agents.
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Key Words
- AAs, amaryllidaceous alkaloids
- ABCA1, ATP-binding cassette transporter A1
- ACE, affinity capillary electrophoresis
- APTES, 3-aminopropyl-triethoxysilane
- ASMS, affinity selection mass spectrometry
- Active components
- Bioaffinity techniques
- CMC, Cell membrane chromatography
- CMMCNTs, Cell membrane magnetic carbon nanotube
- CMSP, Cell membrane stationary phase
- CNT, carbon nanotubes
- ChE, cholesterol efflux
- EGFR, epidermal growth factor receptor
- FP, fluorescence polarization
- Fe3O4–NH2, aminated magnetic nanoparticles
- HCS, high content screen
- HTS, high throughout screen
- HUVEC, human umbilical vein endothelial cells
- IMER, immobilized enzyme microreactor
- MAO-B, monoamine oxidases B
- MNP, immobilized on nanoparticles
- MPTS, 3-mercaptopropyl-trimethoxysilane
- MS, mass spectrometry
- MSPE, magnetic solid-phase extraction
- Natural products
- PD, Parkinson's disease
- PMG, physcion-8-O-β-d-monoglucoside
- RGD, arginine-glycine-aspartic acid
- SPR, surface plasmon resonance
- STAT3, signal transducer and activator of transcription 3
- Screening
- TCMs, traditional Chinese medicines
- TYR, tyrosinase
- TYR-MNPs, tyrosinase-immobilized magnetic nanoparticles
- Topo I, topoisomerase I
- UF, affinity ultrafiltration
- XOD, xanthine oxidase
- α1A-AR, α1A-adrenergic receptor
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Machado KDC, Paz MFCJ, Oliveira Santos JVD, da Silva FCC, Tchekalarova JD, Salehi B, Islam MT, Setzer WN, Sharifi-Rad J, de Castro e Sousa JM, Cavalcante AADCM. Anxiety Therapeutic Interventions of β-Caryophyllene: A Laboratory-Based Study. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20962229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The bicyclic sesquiterpene β-caryophyllene (BCP) has diverse biological activities, including antioxidant, anti-inflammatory, antidiabetic, and analgesic effects. This study evaluates anxiolytic, toxicity, and antioxidant effects of BCP using in vitro and in vivo test models. The anxiolytic effects were tested in Swiss albino mice ( Mus musculus) by applying the elevated plus-maze, rota-rod, light and dark, and hiding sphere models, while the toxicity was evaluated by brine shrimp ( Artemia salina) lethality bioassay. Additionally, the antioxidant capacity was tested by using 2,2-diphenyl-1-picrylhydrazyl radical, 2,2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid hydroxyl radical scavenging, and the Saccharomyces cerevisiae test model. The results suggest that BCP exerted a dose-dependent anxiolytic-like effect on the experimental animals. It did not show toxicity in A. salina at 24 hours. BCP showed a concentration-dependent free-radical-scavenging capacity, similar to the standard antioxidant Trolox. It also showed protective and repair capacities against hydrogen peroxide-induced damaging effects in isogenic and wild-type S. cerevisiae strains. Taken together, BCP exerted antioxidant and protective effects, which can be targeted to treat neurological diseases and disorders such as anxiety.
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Affiliation(s)
- Keylla da Conceição Machado
- Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Brazil
- Laboratory of Genetical Toxicology, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, USA
| | | | - José Victor de Oliveira Santos
- Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Brazil
- Laboratory of Genetical Toxicology, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, USA
| | | | | | - Bahare Salehi
- Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran
| | - Muhammad Torequl Islam
- Laboratory of Theoretical and Computational Biophysics, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL, USA
- Aromatic Plant Research Center, Lehi, UT, USA
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - João Marcelo de Castro e Sousa
- Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Brazil
- Laboratory of Genetical Toxicology, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, USA
| | - Ana Amélia de Carvalho Melo Cavalcante
- Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Brazil
- Laboratory of Genetical Toxicology, Postgraduate Program in Pharmaceutical Sciences, Federal University of Piauí, Teresina, USA
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Wang J, Zheng D, Xu N, Zhang C, Wang Y, Sun X, Zhang Z. Attribution and identification of absorbed components by HPLC-DAD-ESI-MS after oral administration of Erhuang decoction. J Anal Sci Technol 2020. [DOI: 10.1186/s40543-020-00236-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AbstractTo realize the attribution and identification of absorbed components in rat serum after oral administration of Erhuang decoction prepared by semi-bionic enzyme extraction method, the fingerprints of serum samples were established using a HPLC-DAD-ESI-MS method. Thirty-two peaks in Erhuang decoction and 24 peaks in rat serum after oral administration of Erhuang decoction were detected. Among the 24 peaks detected in rat serum, 25 compounds were identified by comparing the retention time and mass spectrometry data with that of reference compounds, or by mass spectrometry analysis and retrieving the reference literatures. Among the identified 25 compounds in vivo, 24 were the original form of compounds absorbed from the detected compounds in vitro, and one was the metabolite compounds of licorice. By analyzing the mass spectrometry or ultraviolet absorption characteristics, other unidentified compounds in vivo were deduced to be the endogenous metabolites in serum or the original form and metabolites of the compounds existed in vivo. Results indicated that HPLC-DAD-ESI-MS is suitable for identifying the bioactive constituents in serum after oral administration of Erhuang decoction, and the findings would be beneficial to further research and development of the pharmacodynamic substance base of Erhuang decoction.
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Abdelhameed RFA, Habib ES, Eltahawy NA, Hassanean HA, Ibrahim AK, Mohammed AF, Fayez S, Hayallah AM, Yamada K, Behery FA, Al-Sanea MM, Alzarea SI, Bringmann G, Ahmed SA, Abdelmohsen UR. New Cytotoxic Natural Products from the Red Sea Sponge Stylissa carteri. Mar Drugs 2020; 18:E241. [PMID: 32375235 PMCID: PMC7281077 DOI: 10.3390/md18050241] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 01/17/2023] Open
Abstract
Bioactivity-guided isolation supported by LC-HRESIMS metabolic profiling led to the isolation of two new compounds, a ceramide, stylissamide A (1), and a cerebroside, stylissoside A (2), from the methanol extract of the Red Sea sponge Stylissa carteri. Structure elucidation was achieved using spectroscopic techniques, including 1D and 2D NMR and HRMS. The bioactive extract's metabolomic profiling showed the existence of various secondary metabolites, mainly oleanane-type saponins, phenolic diterpenes, and lupane triterpenes. The in vitro cytotoxic activity of the isolated compounds was tested against two human cancer cell lines, MCF-7 and HepG2. Both compounds, 1 and 2, displayed strong cytotoxicity against the MCF-7 cell line, with IC50 values at 21.1 ± 0.17 µM and 27.5 ± 0.18 µM, respectively. They likewise showed a promising activity against HepG2 with IC50 at 36.8 ± 0.16 µM for 1 and IC50 30.5 ± 0.23 µM for 2 compared to the standard drug cisplatin. Molecular docking experiments showed that 1 and 2 displayed high affinity to the SET protein and to inhibitor 2 of protein phosphatase 2A (I2PP2A), which could be a possible mechanism for their cytotoxic activity. This paper spreads light on the role of these metabolites in holding fouling organisms away from the outer surface of the sponge, and the potential use of these defensive molecules in the production of novel anticancer agents.
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Affiliation(s)
- Reda F. A. Abdelhameed
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.F.A.A.); (E.S.H.); (N.A.E.); (H.A.H.); (A.K.I.)
| | - Eman S. Habib
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.F.A.A.); (E.S.H.); (N.A.E.); (H.A.H.); (A.K.I.)
| | - Nermeen A. Eltahawy
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.F.A.A.); (E.S.H.); (N.A.E.); (H.A.H.); (A.K.I.)
| | - Hashim A. Hassanean
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.F.A.A.); (E.S.H.); (N.A.E.); (H.A.H.); (A.K.I.)
| | - Amany K. Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.F.A.A.); (E.S.H.); (N.A.E.); (H.A.H.); (A.K.I.)
| | - Anber F. Mohammed
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt; (A.F.M.); (A.M.H.)
| | - Shaimaa Fayez
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany; (S.F.); (G.B.)
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt
| | - Alaa M. Hayallah
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt; (A.F.M.); (A.M.H.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Deraya University, New Minia 61111, Egypt
| | - Koji Yamada
- Graduate School of Biomedical Sciences, Nagasaki University, Bunkyo-machi 1-14, Nagasaki 852-8521, Japan;
| | - Fathy A. Behery
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt;
- Department of Pharmaceutical Sciences, College of Pharmacy, Riyadh Elm University, Riyadh 11681, Saudi Arabia
| | - Mohammad M. Al-Sanea
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Aljouf 72341, Saudi Arabia;
| | - Sami I. Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Aljouf 72341, Saudi Arabia;
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany; (S.F.); (G.B.)
| | - Safwat A. Ahmed
- Department of Pharmacognosy, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; (R.F.A.A.); (E.S.H.); (N.A.E.); (H.A.H.); (A.K.I.)
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, New Minia 61111, Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
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Ponomaryov DV, Grigorʼeva LR, Nemtarev AV, Tsepaeva OV, Mironov VF, Gnezdilov OI, Antipin IS. 3,28-Diacetoxylup-20(29)-ene-30-oic Acid and Its ω-Bromoalkyl
Esters. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020040107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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56
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Rocchetti G, Senizza B, Zengin G, Mahomodally MF, Senkardes I, Lobine D, Lucini L. Untargeted metabolomic profiling of three Crataegus species (hawthorn) and their in vitro biological activities. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:1998-2006. [PMID: 31849067 DOI: 10.1002/jsfa.10216] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/30/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND In this investigation, the chemical and biological profiles of three Turkish Crataegus species (Crataegus orientalis, Crataegus szovitsii and Crataegus tanacetifolia) were studied in order to provide the first comprehensive characterization and their health-promoting potential. In this respect, polyphenolic profiles were evaluated using ultrahigh-performance liquid chromatography-quadrupole time-of-flight mass spectrometry. The in vitro antioxidant activities of the Crataegus samples were evaluated by using free-radical scavenging, phosphomolybdenum, ferrous-ion chelating, and reducing power assays. The inhibitory activities against α-glucosidase, amylase, cholinesterases (acetylcholinesterase (AChE) and butyrylcholinesterase (BChE)), and tyrosinase were also established. RESULTS The untargeted metabolomic approach highlighted the effect of both extraction types and species on the phenolic profiles of different Crateagus tissues (i.e. leaves and twigs). The methanolic extracts showed the maximum radical scavenging and reducing activity in all test systems, whereas for ferrous-ion chelating assays the decocted and infused extracts showed the highest activity. Only the methanolic extracts were effective against AChE and BChE. The extract tested showed remarkable inhibitory effects against tyrosinase and α-glucosidase, whereas all the extracts exhibited modest inhibition against α-amylase. Overall, the twig extracts of the three species studied showed superior antioxidant and enzyme inhibitory activities. CONCLUSION On the basis of these results, the three Crataegus species can be classified as potent bioresources for high-value phytochemicals, which warrant further investigations for developing novel nutraceuticals. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Gabriele Rocchetti
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122, Piacenza, Italy
| | - Biancamaria Senizza
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122, Piacenza, Italy
| | - Gokhan Zengin
- Department of Biology, Faculty of Science, Selcuk University, Campus, Konya, Turkey
| | - Mohamad Fawzi Mahomodally
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam
- Department of Health Sciences, Faculty of Science, University of Mauritius, 230, Réduit, Mauritius
| | - Ismail Senkardes
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Devina Lobine
- Department of Health Sciences, Faculty of Science, University of Mauritius, 230, Réduit, Mauritius
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122, Piacenza, Italy
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Jiao R, Xu F, Huang X, Li H, Liu W, Cao H, Zang L, Li Z, Hua H, Li D. Antiproliferative chromone derivatives induce K562 cell death through endogenous and exogenous pathways. J Enzyme Inhib Med Chem 2020; 35:759-772. [PMID: 32183548 PMCID: PMC7144234 DOI: 10.1080/14756366.2020.1740696] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A series of furoxan derivatives of chromone were prepared. The antiproliferative activities were tested against five cancer cell lines HepG2, MCF-7, HCT-116, B16, and K562, and two normal human cell lines L-02 and PBMCs. Among them, compound 15a exhibited the most potent antiproliferative activity. It was also found 15a produced more than 8 µM of NO at the peak time of 45 min by Griess assay. Generally, antiproliferative activity is positively related to NO release to some extent. Further in-depth studies on apoptosis-related mechanisms showed that 15a caused S-phase cell cycle arrest in a concentration-dependent manner and induced apoptosis significantly through mitochondria-related pathways. Human apoptosis protein array assay also demonstrated 15a increased the expression levels of pro-apoptotic Bax, Bad, HtrA2 and Trail R2/DR5. The expression of catalase and cell cycle blocker claspin were similarly up-regulated. In balance, 15a induced K562 cells death through both endogenous and exogenous pathways.
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Affiliation(s)
- Runwei Jiao
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Fanxing Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Xiaofang Huang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Haonan Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Weiwei Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Hao Cao
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Linghe Zang
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, P. R. China
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“Recent advances on support materials for lipase immobilization and applicability as biocatalysts in inhibitors screening methods”-A review. Anal Chim Acta 2020; 1101:9-22. [DOI: 10.1016/j.aca.2019.11.073] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/29/2019] [Accepted: 11/30/2019] [Indexed: 01/01/2023]
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59
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Qian ZM, Chen L, Wu MQ, Li DQ. Rapid screening and characterization of natural antioxidants in Polygonum viviparum by an on-line system integrating the pressurised liquid micro-extraction, HPLC-DAD-QTOF-MS/MS analysis and antioxidant assay. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1137:121926. [PMID: 31896073 DOI: 10.1016/j.jchromb.2019.121926] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/29/2019] [Accepted: 12/03/2019] [Indexed: 12/18/2022]
Abstract
Rapid discovery of active ingredients from complex matrices is one of great challenges for modern drug development. Traditional methods often require many sample treatment steps, including an extraction step with exclusively dedicated solvents followed by repeated separation and activities assessment. This present work described an integrated analytical setup for natural antioxidants discovery in which the online extraction (OLE) of a solid sample is directly coupled to its analysis by high performance liquid chromatography-diode array detector-quadrupole time-of-flight tandem mass spectrometry and 2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) antioxidant assay (OLE-HPLC-DAD-QTOF-MS/MS-ABTS). This developed approach makes sample extraction, chromatographic separation and chemical detection, and antioxidant assay integrated into a single HPLC injection and was successfully applied for the rapid discovery of natural antioxidant bioactives from Polygonum viviparum. A total of 21 secondary metabolites were characterized according to their retention times, ultraviolet (UV) spectra, exact mass and fragmentation ions in MS/MS spectra, and 18 of them displayed antioxidant activity (response as negative peaks in antioxidant assay). This work describes a simple, green and efficient approach to minimize the sample consumption (only 0.4 mg was required) and eliminate complex sample treatment procedures. The developed OLE-HPLC-DAD-QTOF-MS/MS-ABTS system offers new perspectives for rapid chemical profiling of natural products and their antioxidants discovery.
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Affiliation(s)
- Zheng-Ming Qian
- Xiangnan University, Chenzhou 423000, Hunan Province, PR China; Key Laboratory of State Administration of Traditional Chinese Medicine, Sunshine Lake Pharma Co., LTD, Dongguan 523850, Guangdong Province, PR China
| | - Ling Chen
- Key Laboratory of State Administration of Traditional Chinese Medicine, Sunshine Lake Pharma Co., LTD, Dongguan 523850, Guangdong Province, PR China
| | - Meng-Qi Wu
- Key Laboratory of State Administration of Traditional Chinese Medicine, Sunshine Lake Pharma Co., LTD, Dongguan 523850, Guangdong Province, PR China
| | - De-Qiang Li
- Department of Pharmacy, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, PR China.
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de Moraes MC, Cardoso CL, Cass QB. Solid-Supported Proteins in the Liquid Chromatography Domain to Probe Ligand-Target Interactions. Front Chem 2019; 7:752. [PMID: 31803714 PMCID: PMC6873629 DOI: 10.3389/fchem.2019.00752] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 10/21/2019] [Indexed: 12/11/2022] Open
Abstract
Ligand-target interactions play a central role in drug discovery processes because these interactions are crucial in biological systems. Small molecules-proteins interactions can regulate and modulate protein function and activity through conformational changes. Therefore, bioanalytical tools to screen new ligands have focused mainly on probing ligand-target interactions. These interactions have been evaluated by using solid-supported proteins, which provide advantages like increased protein stability and easier protein extraction from the reaction medium, which enables protein reuse. In some specific approaches, precisely in the ligand fishing assay, the bioanalytical method allows the ligands to be directly isolated from complex mixtures, including combinatorial libraries and natural products extracts without prior purification or fractionation steps. Most of these screening assays are based on liquid chromatography separation, and the binding events can be monitored through on-line or off-line methods. In the on-line approaches, solid supports containing the immobilized biological target are used as chromatographic columns most of the time. Several terms have been used to refer to such approaches, such as weak affinity chromatography, high-performance affinity chromatography, on-flow activity assays, and high-performance liquid affinity chromatography. On the other hand, in the off-line approaches, the binding event occurs outside the liquid chromatography system and may encompass affinity and activity-based assays in which the biological target is immobilized on magnetic particles or monolithic silica, among others. After the incubation step, the supernatant or the eluate from the binding assay is analyzed by liquid chromatography coupled to various detectors. Regardless of the selected bioanalytical approach, the use of solid supported proteins has significantly contributed to the development of automated and reliable screening methods that enable ligands to be isolated and characterized in complex matrixes without purification, thereby reducing costs and avoiding time-laborious steps. This review provides a critical overview of recently developed assays.
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Affiliation(s)
- Marcela Cristina de Moraes
- Laboratório SINCROMA, Instituto de Química, Departamento de Química Orgânica, Universidade Federal Fluminense, Niterói, Brazil
| | - Carmen Lucia Cardoso
- Grupo de Cromatografia de Bioafinidade e Produtos Naturais, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Quezia Bezerra Cass
- Separare, Departamento de Química, Universidade Federal de São Carlos, São Carlos, Brazil
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Screening and Evaluation of Xanthine Oxidase Inhibitors from Gnetum parvifolium in China. Molecules 2019; 24:molecules24142671. [PMID: 31340570 PMCID: PMC6680845 DOI: 10.3390/molecules24142671] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/12/2019] [Accepted: 07/22/2019] [Indexed: 12/17/2022] Open
Abstract
As a traditional natural medicine for treating many kinds of diseases, Gnetum parvifolium showed apparent inhibition on xanthine oxidase (XO). In this study, ultrafiltration combined with liquid chromatography-mass spectrometry (LC-MS) is used for the screening of XO inhibitors from Gnetum parvifolium. Their antioxidation, XO inhibition, and enzymic kinetic parameters are also determined. Finally, piceatannol (1), rhaponiticin (2), resveratrol (3), and isorhapontigenin (4) are screened out and identified as XO inhibitors from the extract of Gnetum parvifolium. Four inhibitors show better inhibition than allopurinol and good radical scavenging abilities. However, the antioxidant activities are weaker than ascorbic acid. The kinetic parameters illustrate the inhibition mode of XO by piceatannol is competitive type, while the inhibition modes for rhaponiticin, resveratrol and isorhapontigenin are uncompetitive types. In order to evaluate the difference among samples obtained in China, the amounts of four inhibitors and related activities in 20 samples are assessed and analyzed by partial least squares analysis. The results indicate piceatannol contribute the highest coefficients in three kinds of activities. Based on these findings, more comprehensive research on pharmaceutical and biochemical activities of these four XO inhibitors could be conducted in future.
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