1
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Chen G, Zhang S, Wang X, Fan X, Wilson G, Sa Y, Ma X. A strategy for inhibitors screening of xanthine oxidase based on colorimetric sensor combined with affinity chromatography technology. Biosens Bioelectron 2024; 261:116510. [PMID: 38905859 DOI: 10.1016/j.bios.2024.116510] [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: 12/03/2023] [Revised: 06/06/2024] [Accepted: 06/17/2024] [Indexed: 06/23/2024]
Abstract
The discovery of enzyme inhibitors from natural products is a crucial aspect in the development of therapeutic drugs. However, the complexity of natural products presents a challenge in developing simple and efficient methods for inhibitor screening. Herein, we have developed an integrated analytical model for screening xanthine oxidase (XOD) inhibitors that combines simplicity, accuracy, and efficiency. This model utilizes a colorimetric sensor and affinity chromatography technology with immobilized XOD. The colorimetric sensor procedure can quickly identify whether there are active components in complex samples. Subsequently, the active components in the samples identified by the colorimetric sensor procedure were further captured, separated, and identified through affinity chromatography. The integrated analytical model can significantly enhance the efficiency and accuracy of inhibitor screening. The proposed method was applied to screen for an activity inhibitor of XOD in five natural medicines. As a result, a potential active ingredient for XOD, polydatin, was successfully identified from Polygoni Cuspidati Rhizoma et Radix. This work is anticipated to offer new insights for the screening of enzyme inhibitors from natural medicines.
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Affiliation(s)
- Guoning Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China.
| | - Shuxian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Xiaofei Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Xiaoxuan Fan
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Gidion Wilson
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Yuping Sa
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Xueqin Ma
- Department of Pharmaceutical Analysis, School of Pharmacy, Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China.
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Zhang T, Liu L, Chen Q, Wang Y, Gao X, Ma X, Yan P. Comparative Assessment of In Vitro Xanthine Oxidase and α-Glucosidase Inhibitory Activities of Cultured Cambial Meristematic Cells, Adventitious Roots, and Field-Cultivated Ginseng. Nutrients 2024; 16:443. [PMID: 38337727 PMCID: PMC10857066 DOI: 10.3390/nu16030443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
Panax ginseng, a traditional Chinese medicine with a history spanning thousands of years, faces overexploitation and challenges related to extended growth periods. Tissue-cultured adventitious roots and stem cells are alternatives to wild and field-cultivated ginseng. In this study, we assessed the in vitro xanthine oxidase and α-glucosidase inhibitory activities of saponin extracts among cultured cambial meristematic cells (CMC), adventitious ginseng roots (AGR), and field-cultivated ginseng roots (CGR). The xanthine oxidase (XO) and α-glucosidase inhibitory activities were determined by uric acid estimation and the p-NPG method, respectively. Spectrophotometry and the Folin-Ciocalteu, aluminum nitrate, and Bradford methods were employed to ascertain the total saponins and phenolic, flavonoid, and protein contents. The calculated IC50 values for total saponin extracts against XO and α-glucosidase were 0.665, 0.844, and >1.6 mg/mL and 0.332, 0.745, and 0.042 mg/mL for AGR, CMC, CGR, respectively. Comparing the total saponin, crude protein, and total phenolic contents revealed that AGR > CMC > CGR. To the best of our knowledge, this study presents the first report on the in vitro comparison of xanthine oxidase and α-glucosidase inhibitory activities among AGR, CMC, and CGR. The findings offer valuable insights into the development of hypoglycemic and antihyperuricemic medicinal, nutraceutical, and functional products utilizing AGR and CMC.
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Affiliation(s)
- Tianhe Zhang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China; (T.Z.); (Q.C.)
| | - Lijun Liu
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China; (T.Z.); (Q.C.)
| | - Qiqi Chen
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China; (T.Z.); (Q.C.)
| | - Yifei Wang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China; (T.Z.); (Q.C.)
| | - Xiujun Gao
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China; (T.Z.); (Q.C.)
| | - Xingyi Ma
- School of Science, Harbin Institute of Technology, Shenzhen 518055, China
- Biosen International, Jinan 250117, China
- Briteley Institute of Life Sciences, Yantai 264003, China
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Peisheng Yan
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China; (T.Z.); (Q.C.)
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Jiang X, Liu W, Li Y, Zhu W, Liu H, Wen Y, Bai R, Luo X, Zhang G, Zhao Y. WO 3 nanosheets with peroxidase-like activity and carbon dots based ratiometric fluorescent strategy for xanthine oxidase activity sensing and inhibitor screening. Talanta 2024; 267:125129. [PMID: 37666084 DOI: 10.1016/j.talanta.2023.125129] [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: 06/27/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/06/2023]
Abstract
The abnormal level of xanthine oxidase (XOD) often causes pathological changes, which are related to a series of diseases. Herein, a novel and sensitive ratiometric fluorescent sensing platform based on WO3 nanosheets and carbon dots (CDs) was constructed to detect XOD activity for the first time. Under the catalytic oxidation of xanthine by XOD, hydrogen peroxide (H2O2) was generated. In the presence of H2O2, WO3 nanosheets were able to catalyze the oxidation of o-phenylenediamine to generate 2,3-diaminophenazine (DAP) with a yellow fluorescence signal at 570 nm due to its great peroxidase-like activity. The oxidation product DAP was capable of quenching the fluorescence of CDs at 430 nm through the inner filter effect. Therefore, the fluorescence intensity ratio F570/F430 can be used for quantitative analysis of XOD activity. This assay displayed good linear relationships in the range of 0.005-0.05 U/L and 0.5-40 U/L with a detection limit of 0.002 U/L. In addition, this ratiometric fluorescent sensing platform was successfully applied to the determination of XOD in human serum samples and XOD inhibitor screening, demonstrating significant potential in disease diagnosis and drug-screening applications.
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Affiliation(s)
- Xinxin Jiang
- School of Science, Xihua University, Chengdu, 610039, China
| | - Weiping Liu
- Department of Clinical Laboratory, Zigong First People's Hospital, Zigong, 643000, Sichuan, China
| | - Yue Li
- School of Science, Xihua University, Chengdu, 610039, China
| | - Wanglisha Zhu
- School of Science, Xihua University, Chengdu, 610039, China
| | - Hongmei Liu
- School of Science, Xihua University, Chengdu, 610039, China
| | - Yulu Wen
- School of Science, Xihua University, Chengdu, 610039, China
| | - Ruyu Bai
- School of Science, Xihua University, Chengdu, 610039, China
| | - Xiaojun Luo
- School of Science, Xihua University, Chengdu, 610039, China.
| | - Guoqi Zhang
- School of Science, Xihua University, Chengdu, 610039, China.
| | - Yan Zhao
- School of Science, Xihua University, Chengdu, 610039, China.
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Wang R, Yue X, Shan G, Qiu X, Wang L, Yang L, Li J, Yang B. A novel multi-hyphenated approach to screen and character the xanthine oxidase inhibitors from saffron floral bio-residues. Int J Biol Macromol 2023; 248:125990. [PMID: 37499709 DOI: 10.1016/j.ijbiomac.2023.125990] [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: 05/05/2023] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
Recently, the incidence of hyperuricemia increased with patient rejuvenation, searching for new xanthine oxidase (XOD) inhibitors from natural products becomes important. In our previous work, a flavonoid extract of saffron floral bio-residues (SFB) was found to alleviate hyperuricemia via inhibiting XOD. In this study, an integrated approach combining two-dimensional liquid chromatography, surface plasmon resonance (SPR) and isothermal titration calorimetry (ITC) was developed to online screen and character the potential XOD inhibitors from SFB. The two-dimensional liquid chromatography consisted of affinity chromatography and reverse phase chromatography (2D-AR), in which an XOD column, an inactive XOD column, and a control column were used in the first dimensional liquid chromatography to avoid phenomena of "false positive" and "missing screen of compounds with weak affinity to XOD" that often occur in the screening process, and a C18 column was used in the second dimensional liquid chromatography to separate the mixed XOD binders. Four flavonoid glycosides, i.e., quercetin-3-O-sophoroside (QS), kaempferol-3-O-sophoroside (KS), kaempferol-3-O-rutinoside (KR), and kaempferol-3-O-glucoside (KG), were thus successfully screened and identified from SFB extract by the 2D-AR method. The affinity of QS, KS, KR, KG, kaempferol (aglycone of KS, KR and KG), and quercetin (aglycone of QS) binding to XOD was investigated using SPR method, with KD ranged from 4.8 μM to 47.6 μM. The inhibitor constant (KI) of KS, KR, KG, quercetin and kaempferol were 4.92 mM, 1.11 mM, 0.294 mM, 4.93 μM and 3.27 μM, respectively, determined using ITC method. Finally, the anti-XOD activities of KS, the most abundant flavonoid in SFB extract, and kaempferol in hyperuricemia mice were verified, which suggested that the multi-hyphenated approach established herein can be applied for screen and character the XOD inhibitors in natural products.
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Affiliation(s)
- Ran Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China
| | - Xingnan Yue
- Shanxi University of Chinese Medicine, College of Basic Medical Sciences, Jinzhong 030619, PR China
| | - Guangzhi Shan
- Institute of Medicinal Biotechnology, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, PR China
| | - Xiaodan Qiu
- Institute of Medicinal Biotechnology, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050, PR China
| | - Lan Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China
| | - Li Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China
| | - Jiaqi Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China
| | - Bin Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, PR China.
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5
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Chen T, Wang Q, Wang Q, La M, Li Y, He L, Zou D. Ab initio calculation based solvent system selection in silico for counter-current chromatography: separation of resibufogenin glycosylation products. J Chromatogr A 2022; 1686:463649. [DOI: 10.1016/j.chroma.2022.463649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/03/2022] [Accepted: 11/13/2022] [Indexed: 11/16/2022]
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6
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Lian Y, Yuan X, Wang Y, Wei L. Highly sensitive visual colorimetric sensor for xanthine oxidase detection by using MnO 2-nanosheet-modified gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 276:121219. [PMID: 35397450 DOI: 10.1016/j.saa.2022.121219] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/26/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
In this study, a highly sensitive colorimetric assay has been constructed for the determination of xanthine oxidase (XOD) activity by the GNP@MnO2 core-shell nanoparticles as probe. In the presence of XOD, xanthine can be oxidized to produce H2O2, which makes the MnO2 shell fallen off. With the single particle detection (SPD) based dark field microscopy (DFM), the scattering color of GNP@MnO2 NP probe shows obvious change before and after etching process. At the single particle level, noticeable color change of the single probe can be easily detected in the existence of trace XOD. This SPD-based colorimetric strategy displays broad linear dynamic range (0.02-4 mU/mL) and low detection limit of 7.82 μU/mL, which is more sensitive than the results from ensemble sample measurement. In addition, we tested the inhibitory effect of quercetin on the activity of XOD and obtained good inhibition effect. As a consequence, this SPD-based colorimetric strategy provides new perception for the ultrasensitive detection of molecules in complex system.
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Affiliation(s)
- Yawen Lian
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Xiang Yuan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yandan Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
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7
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Yan TC, Cao J, Ye LH. Recent advances on discovery of enzyme inhibitors from natural products using bioactivity screening. J Sep Sci 2022; 45:2766-2787. [PMID: 35593478 DOI: 10.1002/jssc.202200084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/23/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022]
Abstract
The essence of enzymes is to keep the homeostasis and balance of human by catalyzing metabolic responses and modulating cell. Suppression of enzyme slows the progress of some diseases, making it a therapeutic target. Therefore, it is important to develop enzyme inhibitors by proper bioactivity screening strategies for the future treatment of some major diseases. In this review, we summarized the recent (2015-2020) applications of several screening strategies (electrophoretically mediated microanalysis, enzyme immobilization, affinity chromatography, and affinity ultrafiltration) in finding enzyme inhibitors from certain species of bioactive natural compounds of plant origin (flavonoids, alkaloids, phenolic acids, saponins, anthraquinones, coumarins). At the same time, the advantages and disadvantages of each strategy were also discussed, and the future possible development direction in enzyme inhibitor screening has prospected. To sum up, it is expected to help readers select suitable screening strategies for enzyme inhibitors and provide useful information for the study of the biological of specific kinds of natural products. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Tian-Ci Yan
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China
| | - Jun Cao
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China.,College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Li-Hong Ye
- Department of Traditional Chinese Medicine, Hangzhou Red Cross Hospital, Hangzhou, 310003, PR China
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Wang S, Lee DYW, Shang Y, Liao J, Cao X, Xie L, Zhang T, Liu J, Dai R. The bioactive alkaloids identified from Cortex Phellodendri ameliorate benign prostatic hyperplasia via LOX-5/COX-2 pathways. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 93:153813. [PMID: 34735909 DOI: 10.1016/j.phymed.2021.153813] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/09/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The bioactive alkaloids identified from Cortex Phellodendri (CP) were highly effective in treating rats with benign prostatic hyperplasia (BPH). Specifically, lipoxygenase-5 (LOX-5) and cyclooxygenase-2 (COX-2) were identified as two primary targets for alleviating inflammation in BPH rats. However, it remains unknown whether the alkaloid components in CP can interact with the two target proteins. PURPOSE To further identify bioactive alkaloids targeting LOX/COX pathways. METHODS An affinity-ultrafiltration mass spectrometry approach was employed to screen dual-target LOX-5/COX-2 ligands from alkaloid extract. The structures of bioactive alkaloids were characterized by high-resolution Fourier transform ion cyclotron resonance mass spectrometry. To understand the molecular mechanisms underlying the effects of bioactive alkaloids, the expression levels of LOX-5 and COX-2 in BPH model rats were investigated at both protein and mRNA levels. The LOX-5/COX-2 enzymes activity experiments and molecular docking analysis were performed to fully evaluate the interactions between bioactive alkaloids and LOX-5/COX-2. RESULTS After comprehensive analysis, the results showed that bioactive alkaloids could suppress the expression of LOX-5 and COX-2 simultaneously to exert an anti-inflammatory effect on the progression of BPH. In addition, the screened protoberberine, demethyleneberberine was found to exhibit prominent inhibitory activities against both LOX-5 and COX-2 enzymes, palmatine and berberine with moderate inhibitory activities. Molecular docking analysis confirmed that demethyleneberberine could interact well with LOX-5/COX-2. CONCLUSION This study is the first to explore the inhibitory effects of bioactive alkaloids from CP on LOX-5 and COX-2 activities in BPH rats. Our findings demonstrate that the bioactive alkaloids from CP can ameliorate BPH via dual LOX-5/COX-2 pathways, which serves as an efficient approach for the discovery of novel drug leads from natural products with reduced side effects.
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Affiliation(s)
- Siqi Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China
| | - David Yue-Wei Lee
- Mailman Research Center, McLean Hospital, Harvard Medical School, Boston, MA, United States
| | - Ying Shang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China
| | - Jun Liao
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China
| | - Xiaotong Cao
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China
| | - Linlin Xie
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China
| | - Teng Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China.
| | - Jing Liu
- Mailman Research Center, McLean Hospital, Harvard Medical School, Boston, MA, United States.
| | - Ronghua Dai
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, Liaoning 110016, China.
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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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10
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Wang Y, Guo L, Liu C, Li S. Single-step screening and isolation of potential lipoxidase inhibitors from Trifolium repens by stepwise flow rate high-speed countercurrent chromatography and semipreparative high-performance liquid chromatography target-guided by ultrafiltration-LC-MS. J Sep Sci 2021; 44:2875-2887. [PMID: 34043286 DOI: 10.1002/jssc.202100153] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/27/2021] [Accepted: 05/23/2021] [Indexed: 12/14/2022]
Abstract
An efficient method based on ultrafiltration high-performance liquid chromatography coupled with photodiode array detector and electrospray ionization mass spectrometry for the rapid screening and identified of the ligands for activated from the extract of Trifolium repens L. Five major compounds, namely ononin, daidzein, genistein, formononetin, and biochanin A, were identified as potentially effective inhibitors. Subsequently, the specific binding ligands were separated by stepwise flow rate high-speed countercurrent chromatography and semipreparative high-performance liquid chromatography. This is the first report that T. repens extracts contain potent lipoxidase inhibitors. In summary, we systematically studied the active components in T. repens, evaluated their activity, separated and purified them, and identified their structure. This method is simple, fast, and efficient. It is suitable for the separation and purification of active compounds in T. repens, and provides a theoretical basis and technical platform for the development of natural medicines.
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Affiliation(s)
- Yueqi Wang
- Faculty of Chemistry, Northeast Normal University, Changchun, P. R. China
| | - Liping Guo
- Faculty of Chemistry, Northeast Normal University, Changchun, P. R. China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Sainan Li
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
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11
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Orhan IE, Deniz FSS. Natural Products and Extracts as Xantine Oxidase Inhibitors - A Hope for Gout Disease? Curr Pharm Des 2021; 27:143-158. [PMID: 32723252 DOI: 10.2174/1381612826666200728144605] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 06/25/2020] [Indexed: 11/22/2022]
Abstract
Xanthine oxidase (EC 1.17.3.2) (XO) is one of the main enzymatic sources that create reactive oxygen species (ROS) in the living system. It is a dehydrogenase enzyme that performs electron transfer to nicotinamide adenine dinucleotide (NAD+), while oxidizing hypoxanthin, which is an intermediate compound in purine catabolism, first to xanthine and then to uric acid. XO turns into an oxidant enzyme that oxidizes thiol groups under certain stress conditions in the tissue. The last metabolic step, in which hypoxanthin turns into uric acid, is catalyzed by XO. Uric acid, considered a waste product, can cause kidney stones and gouty-type arthritis as it is crystallized, when present in high concentrations. Thus, XO inhibitors are one of the drug classes used against gout, a purine metabolism disease that causes urate crystal storage in the joint and its surroundings caused by hyperuricemia. Urate-lowering therapy includes XO inhibitors that reduce uric acid production as well as uricosuric drugs that increase urea excretion. Current drugs that obstruct uric acid synthesis through XO inhibition are allopurinol, febuxostat, and uricase. However, since the side effects, safety and tolerability problems of some current gout medications still exist, intensive research is ongoing to look for new, effective, and safer XO inhibitors of natural or synthetic origins for the treatment of the disease. In the present review, we aimed to assess in detail XO inhibitory capacities of pure natural compounds along with the extracts from plants and other natural sources via screening Pubmed, Web of Science (WoS), Scopus, and Google Academic. The data pointed out to the fact that natural products, particularly phenolics such as flavonoids (quercetin, apigenin, and scutellarein), tannins (agrimoniin and ellagitannin), chalcones (melanoxethin), triterpenes (ginsenoside Rd and ursolic acid), stilbenes (resveratrol and piceatannol), alkaloids (berberin and palmatin) have a great potential for new XO inhibitors capable of use against gout disease. In addition, not only plants but other biological sources such as microfungi, macrofungi, lichens, insects (silk worms, ants, etc) seem to be the promising sources of novel XO inhibitors.
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Affiliation(s)
- Ilkay E Orhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
| | - Fatma S S Deniz
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey
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12
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Food-Derived Bioactive Peptides with Antioxidative Capacity, Xanthine Oxidase and Tyrosinase Inhibitory Activity. Processes (Basel) 2021. [DOI: 10.3390/pr9050747] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Bioactive peptides (BPs) released by proteases from different food protein sources are often served as antioxidants in food applications. This study aims to investigate 11 BPs derived from fish and egg white as potential natural antioxidants by antioxidant activity assays. The kinetic activity of the BPs against xanthine oxidase (XOD) and tyrosinase was also analyzed. The antioxidative capacity of the BPs indicated that VWWW (VW4, mackerel meat), followed by IRW (IW3, egg white) and VKAGFAWTANQQLS (VS14, tuna backbone protein), possessed the highest antioxidant activity in 1,1-diphenyl-2-picrylhydrazyl radical (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) and reducing power (RP) assays. Both the free-radical scavenging score predicted from the AnOxPePred algorithm and the DPPH, ABTS and RP results indicated that VW4 was the best antioxidant. Furthermore, the XOD and tyrosinase inhibition by three selected peptides exhibited competitive patterns of effective inhibition. The half maximal inhibitory concentrations (IC50) of the peptides for XOD inhibition were 5.310, 3.935, and 1.804 mM for VW4, IW3, and VS14, respectively, and they could serve as competitive natural XOD inhibitors. The IC50 of the peptides for tyrosinase inhibition were 1.254, 2.895, and 0.595 mM for VW4, IW3, and VS14, respectively. Overall, VW4, IW3, and VS14 are potential antioxidants and natural XOD inhibitors for preventing milk-fat oxidation, and anti-browning sources for inhibiting food-derived tyrosinase oxidation.
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Total Triterpenoid Extraction from Inonotus Obliquus Using Ionic Liquids and Separation of Potential Lactate Dehydrogenase Inhibitors via Ultrafiltration High-Speed Countercurrent Chromatography. Molecules 2021; 26:molecules26092467. [PMID: 33922678 PMCID: PMC8122963 DOI: 10.3390/molecules26092467] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 11/17/2022] Open
Abstract
Extracts of the fungus Inonotus obliquus exhibit cytotoxic properties against different cancers; hence, this fungal species has been extensively studied. This study aimed to extract total triterpenoids from Inonotus obliquus using ionic liquids (ILs) and separate potential lactate dehydrogenase (LDH) inhibitors via ultrafiltration (UF)-high-speed countercurrent chromatography (HSCCC). Total triterpenoids from Inonotus obliquus were extracted by performing a single-factor experiment and employing a central composite design via ultrasonic-assisted extraction (UAE) and heat-assisted extraction (HAE). The extract was composed of 1-butyl-3-methylimidazolium bromide as the IL and methanol as the dispersant. Ultrafiltration-liquid chromatography (UF-LC) was used to rapidly scan the LDH inhibitors and betulin and lanosterol were identified as potential inhibitors. To obtain these target compounds, betulin and lanosterol with the purities of 95.9% and 97.8% were isolated from HSCCC within 120 min. Their structures were identified using several techniques, among which IL-HAE was fast and effective. This study reports the extraction of triterpenoids from Inonotus obliquus by IL for the first time. Collectively, the findings demonstrate that UF-LC is an effective tool for screening potential LDH inhibitors from crude extracts of I. obliquus and may help to identify bioactive substances against myocardial infarction, whereas high-purity compounds can be separated via UF-HSCCC.
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Abstract
Hyperuricaemia is characterised by a high level of urate in the blood. The crystallisation of urate is considered a critical risk factor for the development of gout. Allopurinol and febuxostat have been commonly used medications to decrease the circulating urate levels. However, the use of these drugs is associated with undesired side effects. Therefore, the development of a new active, safety anti-hyperuricaemic and anti-inflammatory drug could be useful in gout therapy and is highly justified. Natural products have become a source of new pharmaceuticals due to their strong efficacy with less side effects, which relies on the comprising of complex bioactive compounds. There are a growing number of studies purporting decreasing serum urate with traditional medicines. This article was aimed to review these studies and identify which extracts promote urate reduction, along with their different mechanisms.
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Dong X, Wang B, Cao J, Zheng H, Ye LH. Ligand fishing based on bioaffinity ultrafiltration for screening xanthine oxidase inhibitors from citrus plants. J Sep Sci 2021; 44:1353-1360. [PMID: 33496069 DOI: 10.1002/jssc.202000708] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 12/22/2020] [Accepted: 01/05/2021] [Indexed: 12/26/2022]
Abstract
Citrus plants are valuable medicinal plants with abundant flavonoids content in the parts of fruits and peels, which exhibit potential hypouricemic effect. In the present study, a ligand fishing assay was performed based on bio-affinity ultrafiltration for rapidly screening and identifying xanthine oxidase inhibitors from citrus plants. Under the optimal experimental conditions, five potential ligands were fished out when xanthine oxidase acted as the targeted protein. Subsequently, the chemical structures of all five compounds were identified by quadrupole time-of-flight mass spectrometry. Among them, hesperidin and naringin were confirmed as high-efficiency xanthine oxidase inhibitors. The half maximal inhibitory concentration values of hesperidin and naringin were 0.15 and 1.82 μM, respectively. Compared with the clinical antigout drug, allopurinol (half maximal inhibitory concentration = 8.03 μM), lower half maximal inhibitory concentration values indicated higher enzyme inhibitory activity. The Lineweaver-Burk plots indicated that the two compounds inhibited xanthine oxidase in a noncompetitive manner. The results demonstrate that the bioaffinity ultrafiltration method is a powerful tool for screening out xanthine oxidase inhibitors from natural products.
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Affiliation(s)
- Xin Dong
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Bin Wang
- Lianyungang Hospital of Traditional Chinese Medicine, Lianyungang, P. R. China
| | - Jun Cao
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Hui Zheng
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, P. R. China
| | - Li-Hong Ye
- Department of Traditional Chinese Medicine, Hangzhou Red Cross Hospital, Hangzhou, P. R. China
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Wang LM, Wang P, Teka T, Zhang YC, Yang WZ, Zhang Y, Wang T, Liu LX, Han LF, Liu CX. 1H NMR and UHPLC/Q-Orbitrap-MS-Based Metabolomics Combined with 16S rRNA Gut Microbiota Analysis Revealed the Potential Regulation Mechanism of Nuciferine in Hyperuricemia Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14059-14070. [PMID: 33146009 DOI: 10.1021/acs.jafc.0c04985] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hyperuricemia seriously jeopardizes human health by increasing the risk of several diseases, such as gout and stroke. Nuciferine is able to alleviate hyperuricemia significantly. However, the underlying metabolic regulation mechanism remains unknown. To understand the metabolic effects of nuciferine on hyperuricemia by establishing a rat model of rapid hyperuricemia, 1H NMR and liquid chromatography-mass spectrometry were used to conduct nontargeted metabolomics studies. A total of 21 metabolites were authenticated in plasma and urine to be closely related with hyperuricemia, which were mainly correlated to the six metabolic pathways. Moreover, 16S rRNA analysis indicated that diversified intestinal microorganisms are closely related to changes in differential metabolites, especially bacteria from Firmicutes and Bacteroidetes. We propose that indoxyl sulfate and N-acetylglutamate in urine may be the potential biomarkers besides uric acid for early diagnosis and prevention of hyperuricemia. Gut microbiological analysis found that changes in the gut microbiota are closely related to these metabolites.
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Affiliation(s)
- Li-Ming Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
| | - Piao Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
| | - Tekleab Teka
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
- Department of Pharmacy, College of Medicine and Health Sciences, Wollo University, P.O. Box 1145, Dessie +251-1145, Ethiopia
| | - You-Cai Zhang
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Wen-Zhi Yang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
| | - Yi Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
| | - Tao Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
| | - Lai-Xing Liu
- School of Management, Wuhan Institute of Technology, Wuhan 430205, China
| | - Li-Feng Han
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin 301617, P. R. China
| | - Cai-Xiang Liu
- CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071, China
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Lin Y, Han C, Xu Q, Wang W, Li L, Zhu D, Luo J, Kong L. Integrative countercurrent chromatography for the target isolation of lysine-specific demethylase 1 inhibitors from the roots of Salvia miltiorrhiza. Talanta 2020; 206:120195. [PMID: 31514831 DOI: 10.1016/j.talanta.2019.120195] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 11/20/2022]
Abstract
The ability to separate bioactive compounds from herbal medicines, which contain abundant components, is crucial for drug discovery. Conventional Countercurrent chromatography (CCC) methods for separating bioactive compounds are labor intensive and show low efficiency. Here, we present a novel integrative CCC method for separating lysine-specific demethylase 1 (LSD1) inhibitors from the roots of Salvia miltiorrhiza (RSM). The methanol extracts of RSM were separated into hydrosoluble and liposoluble fractions, which were online stored in coils. Subsequently, the targeting LSD1 constituents were isolated using isocratic, gradient, or recycling elution mode. All separation processes could be accomplished using one CCC apparatus. Using our separation strategy, two phenylpropanoids and four tanshinones were isolated, which were determined to be new classes of natural LSD1 inhibitors. Salvianolic acid B, which showed the most potent inhibitory activity with an IC50 of 0.11 μM, exhibiting a considerable potential as an anticancer agent. Promisingly, the integrative CCC could be a crucial tool for the target separation of enzyme inhibitors from herbal medicines.
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Affiliation(s)
- Yaolan Lin
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Chao Han
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Qiqi Xu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Wenli Wang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Lingnan Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Dongrong Zhu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Jianguang Luo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China.
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Bioactive Natural Product Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China.
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Zhao H, Lai C, Zhang M, Zhou S, Liu Q, Wang D, Geng Y, Wang X. An improved 2D-HPLC-UF-ESI-TOF/MS approach for enrichment and comprehensive characterization of minor neuraminidase inhibitors from Flos Lonicerae Japonicae. J Pharm Biomed Anal 2019; 175:112758. [DOI: 10.1016/j.jpba.2019.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 12/30/2022]
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Identification of eupatilin and ginkgolide B as p38 ligands from medicinal herbs by surface plasmon resonance biosensor-based active ingredients recognition system. J Pharm Biomed Anal 2019; 171:35-42. [PMID: 30965219 DOI: 10.1016/j.jpba.2019.03.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 01/25/2019] [Accepted: 03/14/2019] [Indexed: 12/17/2022]
Abstract
Screening of bioactive ligands for a certain protein target from medicinal herbs is a highly important yet challenging task during drug discovery process. In this study, a surface plasmon resonance biosensor-based active ingredient recognition system (SPR-AIRS) was applied to screen p38 mitogen-activated protein kinase (p38) ligands from herbal extracts. After p38 protein was immobilized on a SPR chip and the suitability of SPR-AIRS was validated, thirty-four p38-related medicinal herbs were selected and pre-screened. Two medicinal herbs having high response signal with p38-immobilized chip, Folium Ginkgo and Herba Artemisiae Scopariae, were injected into SPR system for ligand fishing. Among them, two active compounds, eupatilin (EPT) and ginkgolide B (GKB), were identified as p38 ligands, and then the KD values of EPT and GKB were measured as 21.68 ± 2.21 and 44.71 ± 1.80 μM, respectively. They can inhibit p38 activities significantly and bind to the ATP binding site on p38. Furthermore, EPT and GKB can inhibit cell proliferation (IC50 = 30.31 ± 6.84 and 42.97 ± 0.83 μM), induce apoptosis and G2/M cell cycle arrest against K562 cell line. This is the first time that EPT and GKB are reported as effective p38 binding ligands. These results prove that SPR-AIRS could be an effective method to screen active compounds acting on a specific protein from complex systems.
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Yang Y, Liang X, Jin P, Li N, Zhang Q, Yan W, Zhang H, Sun J. Screening and determination for potential acetylcholinesterase inhibitory constituents from ginseng stem-leaf saponins using ultrafiltration (UF)-LC-ESI-MS 2. PHYTOCHEMICAL ANALYSIS : PCA 2019; 30:26-33. [PMID: 30159954 DOI: 10.1002/pca.2787] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/01/2018] [Accepted: 07/08/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Previous studies have demonstrated that several ginsenosides have remarkable inhibitory effect on acetylcholinesterase (AChE). In the present study, ginseng stem-leaf saponins (GSLS) can improve learning and memory of Alzheimer's disease patients. However, much comprehensive information regarding AChE inhibition of GSLS and its metabolites is yet unknown. OBJECTIVE The present study aims to screen and determine the potential of AChE inhibitors (AChEIs) from GSLS. METHODOLOGY The active fraction of the GSLS detected in vitro AChE inhibition assays was selected as a starting material for the screening of the potential of AChEIs using ultrafiltration liquid chromatography coupled to electrospray ionisation tandem mass spectrometry (UF-LC-ESI-MS2 ). RESULTS The results showed that 31 ginsenosides were identified with analysis using rapid resolution liquid chromatography with a diode array detector combined with electrospray ionisation tandem mass spectrometry (RRLC-DAD-ESI-MS2 ) from the active fraction, and there are 27 compounds with AChE binding activity. Among them, 11 ginsenosides were evaluated and confirmed using in vitro enzymatic assay, and ginsenosides F1 , Rd, Rk3 , 20(S)-Rg3 , F2 and Rb2 were found to possess strong AChE inhibitory activities. CONCLUSION The proposed UF-LC-ESI-MS2 method was a powerful tool for the discovery of AChEIs from traditional Chinese medicine (TCM).
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Affiliation(s)
- Yinping Yang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
| | - Xinhe Liang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
| | - Ping Jin
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
| | - Na Li
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
| | - Qiao Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
| | - Wei Yan
- College of Pharmacy, Jilin Agriculture University, Changchun, Jilin, P. R. China
| | - Hui Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
| | - Jiaming Sun
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, P. R. China
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Wang T, Li D, Yu B, Qi J. Screening inhibitors of xanthine oxidase from natural products using enzyme immobilized magnetic beads by high-performance liquid chromatography coupled with tandem mass spectrometry. J Sep Sci 2018; 40:1877-1886. [PMID: 28261954 DOI: 10.1002/jssc.201601438] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/13/2017] [Accepted: 02/23/2017] [Indexed: 01/12/2023]
Abstract
In this study, high-performance liquid chromatography coupled with tandem mass spectrometry was used to assess the results of bioactive compound screening from natural products using immobilized enzyme magnetic beads. We compared three commercial magnetic beads with modified amino, carboxy, and N-hydroxysuccinimide groups, respectively. Amino magnetic beads performed best for immobilization and were selected for further experiments. Xanthine oxidase was immobilized on amino magnetic beads and applied to screen potential inhibitors in fresh Zingiber officinale Roscoe, extracts of Scutellaria baicalensis Georgi, and Pueraria lobata Ohwi. In total, 12 potential xanthine oxidase ligands were identified from fresh Zingiber root and Scutellaria root extracts, of which eight were characterized and the concentration required for 50% inhibition was determined. Preliminary structure-function relationships were discussed based on these results. A convenient and effective method was therefore developed for the identification of active compounds from complex natural product mixtures.
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Affiliation(s)
- Ting Wang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, P.R. China
| | - Dapeng Li
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, P.R. China
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, P.R. China.,State Key Laboratory of Natural Medicines, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
| | - Jin Qi
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, P.R. China.,State Key Laboratory of Natural Medicines, China Pharmaceutical University, Jiangsu, Nanjing, P.R. China
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Antigout Effects of Plantago asiatica: Xanthine Oxidase Inhibitory Activities Assessed by Electrochemical Biosensing Method. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1364617. [PMID: 29681967 PMCID: PMC5842727 DOI: 10.1155/2018/1364617] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 01/09/2018] [Accepted: 01/16/2018] [Indexed: 11/18/2022]
Abstract
The XOD inhibitory effects of Plantaginis Semen, that is, the seeds of P. asiatisca, and its representative four single compounds, acteoside, 1H-indolo-3-carbaldehyde, isoacteoside, and myristic acid, were evaluated by electron transfer signal blocking activities (ETSBA), which is based on the electron transfer signal of XOD enzymatic reaction. The blocking activities were detected using an electrochemical biosensing method. Compared with control, significant effects were observed after the addition of P. asiatica extract, acteoside, and 1H-indolo-3-carbaldehyde (all p < 0.05). The IC50 values of the extract and acteoside are 89.14 and 7.55 μg·mL−1, respectively. The IC20 values of the extract, acteoside, and 1H-indolo-3-carbaldehyde are 24.28, 3.88, and 16.16 μg·mL−1, respectively. Due to the relatively lower inhibitory potential of 1H-indolo-3-carbaldehyde, its IC50 was not obtained. In addition, isoacteoside and myristic acid did not show any XOD inhibitory effects. Our data demonstrated that the XOD inhibitory effects of the extract, acteoside, and 1H-indolo-3-carbaldehyde can be accurately evaluated by the ETSBA method. The results from this study indicated that Plantaginis Semen significantly inhibited XOD activities to reduce hyperuricemia and treat gout. The study also proves that measuring the electron transfer signal blocking activities is a simple, sensitive, and accurate method to evaluate the XOD inhibitory effects.
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El Harrad L, Bourais I, Mohammadi H, Amine A. Recent Advances in Electrochemical Biosensors Based on Enzyme Inhibition for Clinical and Pharmaceutical Applications. SENSORS (BASEL, SWITZERLAND) 2018; 18:E164. [PMID: 29315246 PMCID: PMC5795370 DOI: 10.3390/s18010164] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/02/2018] [Accepted: 01/07/2018] [Indexed: 12/22/2022]
Abstract
A large number of enzyme inhibitors are used as drugs to treat several diseases such as gout, diabetes, AIDS, depression, Parkinson's and Alzheimer's diseases. Electrochemical biosensors based on enzyme inhibition are useful devices for an easy, fast and environment friendly monitoring of inhibitors like drugs. In the last decades, electrochemical biosensors have shown great potentials in the detection of different drugs like neostigmine, ketoconazole, donepezil, allopurinol and many others. They attracted increasing attention due to the advantage of being high sensitive and accurate analytical tools, able to reach low detection limits and the possibility to be performed on real samples. This review will spotlight the research conducted in the past 10 years (2007-2017) on inhibition based enzymatic electrochemical biosensors for the analysis of different drugs. New assays based on novel bio-devices will be debated. Moreover, the exploration of the recent graphical approach in diagnosis of reversible and irreversible inhibition mechanism will be discussed. The accurate and the fast diagnosis of inhibition type will help researchers in further drug design improvements and the identification of new molecules that will serve as new enzyme targets.
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Affiliation(s)
- Loubna El Harrad
- Laboratory of Process Engineering & Environment, Faculty of Sciences and Technology, Hassan II University of Casablanca, Mohammadia B.P.146, Morocco.
| | - Ilhame Bourais
- Laboratory of Process Engineering & Environment, Faculty of Sciences and Technology, Hassan II University of Casablanca, Mohammadia B.P.146, Morocco.
| | - Hasna Mohammadi
- Laboratory of Process Engineering & Environment, Faculty of Sciences and Technology, Hassan II University of Casablanca, Mohammadia B.P.146, Morocco.
| | - Aziz Amine
- Laboratory of Process Engineering & Environment, Faculty of Sciences and Technology, Hassan II University of Casablanca, Mohammadia B.P.146, Morocco.
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25
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Kumar R, Joshi G, Kler H, Kalra S, Kaur M, Arya R. Toward an Understanding of Structural Insights of Xanthine and Aldehyde Oxidases: An Overview of their Inhibitors and Role in Various Diseases. Med Res Rev 2017; 38:1073-1125. [DOI: 10.1002/med.21457] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/05/2017] [Accepted: 06/13/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Raj Kumar
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Gaurav Joshi
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Harveen Kler
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Sourav Kalra
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
- Centre for Human Genetics and Molecular Medicine
| | - Manpreet Kaur
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
| | - Ramandeep Arya
- Laboratory for Drug Design and Synthesis, Centre for Pharmaceutical Sciences and Natural Products, School of Basic and Applied Sciences; Central University of Punjab; Bathinda 151001 India
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26
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Modeling and optimizing inhibitory activities of Nelumbinis folium extract on xanthine oxidase using response surface methodology. J Pharm Biomed Anal 2017; 139:37-43. [DOI: 10.1016/j.jpba.2017.02.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 01/28/2023]
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27
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Wang Z, Kwon SH, Hwang SH, Kang YH, Lee JY, Lim SS. Competitive binding experiments can reduce the false positive results of affinity-based ultrafiltration-HPLC: A case study for identification of potent xanthine oxidase inhibitors from Perilla frutescens extract. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1048:30-37. [DOI: 10.1016/j.jchromb.2017.02.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/01/2017] [Accepted: 02/02/2017] [Indexed: 11/30/2022]
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28
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Wei H, Zhang X, Tian X, Wu G. Pharmaceutical applications of affinity-ultrafiltration mass spectrometry: Recent advances and future prospects. J Pharm Biomed Anal 2016; 131:444-453. [PMID: 27668554 DOI: 10.1016/j.jpba.2016.09.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/06/2016] [Accepted: 09/20/2016] [Indexed: 11/17/2022]
Abstract
The immunoaffinity of protein with ligand is broadly involved in many bioanalytical methods. Affinity-ultrafiltration mass spectrometry (AUF-MS), a platform based on interaction of protein-ligand affinity, has been developed to fish out interesting molecules from complex matrixes. Here we reviewed the basics of AUF-MS and its recent applications to pharmaceutical field, i.e. target-oriented discovery of lead compounds from combinatorial libraries and natural product extracts, and determination of free drug concentration in biosamples. Selected practical examples were highlighted to illustrate the advances of AUF-MS in pharmaceutical fields. The future prospects were also presented.
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Affiliation(s)
- Han Wei
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Xiaojian Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xin Tian
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Guanghua Wu
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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29
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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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30
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Zhang M, Zhao H, Zhao Z, Yan H, Lv R, Cui L, Yuan J, Wang D, Geng Y, Liu D, Wang X. Rapid screening, identification, and purification of neuraminidase inhibitors fromLithospermum erythrorhizonSieb.et Zucc. by ultrafiltration with HPLC-ESI-TOF-MS combined with semipreparative HPLC. J Sep Sci 2016; 39:2097-104. [DOI: 10.1002/jssc.201600087] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/26/2016] [Accepted: 03/27/2016] [Indexed: 01/31/2023]
Affiliation(s)
- Minmin Zhang
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
- College of Life Science; Shandong Normal University; Jinan P. R. China
| | - Hengqiang Zhao
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Zhiguo Zhao
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Huijiao Yan
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Ruimin Lv
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Li Cui
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Jinpeng Yuan
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Daijie Wang
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Yanling Geng
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
| | - Daicheng Liu
- College of Life Science; Shandong Normal University; Jinan P. R. China
| | - Xiao Wang
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center; Process Control Research Center of Traditional Chinese Medicine of Shandong Academy of Sciences; Jinan P. R. China
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31
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Song H, Lin J, Zhu X, Chen Q. Developments in high-speed countercurrent chromatography and its applications in the separation of terpenoids and saponins. J Sep Sci 2016; 39:1574-91. [DOI: 10.1002/jssc.201501199] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 02/13/2016] [Accepted: 02/14/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Hua Song
- Department of Pharmacy, School of Pharmaceutical Science; Xiamen University; Xiamen China
| | - Jianhong Lin
- Department of Pharmacy, School of Pharmaceutical Science; Xiamen University; Xiamen China
| | - Xuan Zhu
- Department of Pharmacy, School of Pharmaceutical Science; Xiamen University; Xiamen China
| | - Qing Chen
- Department of Pharmacy, School of Pharmaceutical Science; Xiamen University; Xiamen China
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32
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Amperometric biosensor based on prussian blue and nafion modified screen-printed electrode for screening of potential xanthine oxidase inhibitors from medicinal plants. Enzyme Microb Technol 2016; 85:57-63. [DOI: 10.1016/j.enzmictec.2016.01.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/06/2016] [Accepted: 01/14/2016] [Indexed: 11/30/2022]
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33
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Wang Y, Liu SP, Guo MH, Wang Z. Determination and validation of chikusetsusaponin IVa in rat plasma by UPLC-MS/MS and its application to pharmacokinetic study. Biomed Chromatogr 2016; 30:1423-9. [PMID: 26864353 DOI: 10.1002/bmc.3700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 01/17/2016] [Accepted: 02/04/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Ying Wang
- Pharmacy Admixture Services; The Fourth Affiliated Hospital of Harbin Medical University; Harbin 150001 China
| | - Shi-Ping Liu
- Department of Pharmacy; The First Affiliated Hospital of Harbin Medical University; Harbin 150001 China
| | - Mei-Hua Guo
- Department of Pharmacy; The First Affiliated Hospital of Harbin Medical University; Harbin 150001 China
| | - Zhuo Wang
- Harbin First Hospital; Harbin 100730 China
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34
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Wang LL, Han LF, Yu HS, Sang MM, Liu EW, Zhang Y, Fang SM, Wang T, Gao XM. Analysis of the Constituents in "Zhu She Yong Xue Shuan Tong" by Ultra High Performance Liquid Chromatography with Quadrupole Time-of-Flight Mass Spectrometry Combined with Preparative High Performance Liquid Chromatography. Molecules 2015; 20:20518-37. [PMID: 26593895 PMCID: PMC6332010 DOI: 10.3390/molecules201119712] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 10/27/2015] [Accepted: 11/06/2015] [Indexed: 11/16/2022] Open
Abstract
“Zhu She Yong Xue Shuan Tong” lyophilized powder (ZSYXST), consists of a series of saponins extracted from Panax notoginseng, which has been widely used in China for the treatment of strokes. In this study, an ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF/MS) combined with preparative high performance liquid chromatography (PHPLC) method was developed to rapidly identify both major and minor saponins in ZSYXST. Some high content components were removed through PHPLC in order to increase the sensitivity of the trace saponins. Then, specific characteristic fragment ions in both positive and negative mode were utilized to determine the types of aglycone, saccharide, as well as the saccharide chain linkages. As a result, 94 saponins, including 20 pairs of isomers and ten new compounds, which could represent higher than 98% components in ZSYXST, were identified or tentatively identified in commercial ZSYXST samples.
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Affiliation(s)
- Lin-Lin Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Li-Feng Han
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - He-Shui Yu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Mang-Mang Sang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Er-Wei Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Yi Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Shi-Ming Fang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Tao Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
| | - Xiu-Mei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 312 Anshanxi Road, Nankai District, Tianjin 300193, China.
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35
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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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