1
|
Jin H, Cui D, Fan Y, Li G, Zhong Z, Wang Y. Recent advances in bioaffinity strategies for preclinical and clinical drug discovery: Screening natural products, small molecules and antibodies. Drug Discov Today 2024; 29:103885. [PMID: 38278476 DOI: 10.1016/j.drudis.2024.103885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/26/2023] [Accepted: 01/11/2024] [Indexed: 01/28/2024]
Abstract
Bioaffinity drug screening strategies have gained popularity in preclinical and clinical drug discovery for natural products, small molecules and antibodies owing to their superior selectivity, the large number of compounds to be screened and their ability to minimize the time and expenses of the drug discovery process. This paper provides a systematic summary of the principles of commonly used bioaffinity-based screening methods, elaborates on the success of bioaffinity in clinical drug development and summarizes the active compounds, preclinical drugs and marketed drugs obtained through affinity screening methods. Owing to the high demand for new drugs, bioaffinity-guided screening techniques will play a greater part in clinical drug development.
Collapse
Affiliation(s)
- Haochun Jin
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Dianxin Cui
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Yu Fan
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China
| | - Guodong Li
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China; Zhuhai UM Science and Technology Research Institute, Zhuhai 519031, China.
| | - Zhangfeng Zhong
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China.
| | - Yitao Wang
- Macao Centre for Research and Development in Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China.
| |
Collapse
|
2
|
Li H, Lv N, Li D, Qian Y, Si X, Hua Y, Wang Y, Han X, Xu T. Tongbian decoction restores intestinal microbiota and activates 5-hydroxytryptamine signaling: implication in slow transit constipation. Front Microbiol 2024; 14:1296163. [PMID: 38287961 PMCID: PMC10822989 DOI: 10.3389/fmicb.2023.1296163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/01/2023] [Indexed: 01/31/2024] Open
Abstract
Introduction Slow transit constipation (STC) is a type of functional constipation. The detailed mechanism of STC, for which there is currently no effective treatment, is unknown as of yet. Tongbian decoction (TBD), a traditional Chinese medicinal formula, is commonly used to treat STC in clinical settings. However, the potential impact of TBD on the management of STC via modulation of the gut microbiota remains unclear. Methods Pseudo-germ-free rats were constructed after 6 days of treatment with bacitracin, neomycin, and streptomycin (abbreviated as ABX forthwith). Based on the successful construction of pseudo-germ-free rats, the STC model (ABX + STC) was induced using loperamide hydrochloride. After successful modeling, based on the different sources of donor rat microbiota, the ABX + STC rats were randomly divided into three groups: Control → ABX + STC, STC → ABX + STC, and STC + TBD → ABX + STC for fecal microbiota transplant (FMT). Body weight, fecal water content, and charcoal power propelling rate of the rats were recorded. Intestinal microbiota was detected by 16S rRNA sequencing, and the 5-hydroxytryptamine (5-HT) signaling pathway was examined by western blots, immunofluorescence, and immunohistochemical analysis. Results After treatment with fecal bacterial solutions derived from rats treated with Tongbian decoction (TBD), there was an increase in body weight, fecal water content, and the rate of charcoal propulsion in the rats. Additionally, activation of the 5-hydroxytryptamine (5-HT) signaling pathway was observed. The 16S rRNA sequencing results showed that the fecal bacterial solution from TBD-treated rats affected the intestinal microbiota of STC rats by increasing the proliferation of beneficial bacteria and suppressing the expansion of harmful bacteria. Conclusion Our study showed that TBD alleviated constipation in STC rats by modulating the structure of the intestinal microbiota.
Collapse
Affiliation(s)
- Hongjia Li
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Na Lv
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Dongna Li
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yunzhi Qian
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Xianghuan Si
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yuanqing Hua
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yujuan Wang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Xiaojuan Han
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Tianshu Xu
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Drum Tower Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| |
Collapse
|
3
|
Akhter S, Arman MSI, Tayab MA, Islam MN, Xiao J. Recent advances in the biosynthesis, bioavailability, toxicology, pharmacology, and controlled release of citrus neohesperidin. Crit Rev Food Sci Nutr 2022; 64:5073-5092. [PMID: 36416093 DOI: 10.1080/10408398.2022.2149466] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Neohesperidin (hesperetin 7-O-neohesperidoside), a well-known flavanone glycoside widely found in citrus fruits, exhibits a variety of biological activities, with potential applications ranging from food ingredients to therapeutics. The purpose of this manuscript is to provide a comprehensive overview of the chemical, biosynthesis, and pharmacokinetics profiles of neohesperidin, as well as the therapeutic effects and mechanisms of neohesperidin against potential diseases. This literature review covers a wide range of pharmacological responses elicited by Neohesperidin, including neuroprotective, anti-inflammatory, antidiabetic, antimicrobial, and anticancer activities, with a focus on the mechanisms of those pharmacological responses. Additionally, the mechanistic pathways underlying the compound's osteoporosis, antiulcer, cardioprotective, and hepatoprotective effects have been outlined. This review includes detailed illustrations of the biosynthesis, biopharmacokinetics, toxicology, and controlled release of neohesperidine. Neohesperidin demonstrated a broad range of therapeutic and biological activities in the treatment of a variety of complex disorders, including neurodegenerative, hepato-cardiac, cancer, diabetes, obesity, infectious, allergic, and inflammatory diseases. Neohesperidin is a promising therapeutic candidate for the management of various etiologically complex diseases. However, further in vivo and in vitro studies on mechanistic potential are required before clinical trials to confirm the safety, bioavailability, and toxicity profiles of neohesperidin.
Collapse
Affiliation(s)
- Saima Akhter
- Department of Pharmacy, International Islamic University, Chittagong, Bangladesh
| | | | - Mohammed Abu Tayab
- Department of Pharmacy, International Islamic University, Chittagong, Bangladesh
| | | | - Jianbo Xiao
- Department of Analytical and Food Chemistry, Faculty of Sciences, Universidade de Vigo, Nutrition and Bromatology Group, Ourense, Spain
| |
Collapse
|
4
|
Csuti A, Sik B, Ajtony Z. Measurement of Naringin from Citrus Fruits by High-Performance Liquid Chromatography - a Review. Crit Rev Anal Chem 2022; 54:473-486. [PMID: 35658668 DOI: 10.1080/10408347.2022.2082241] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Naringin is a flavonoid found primarily in citrus species with especially high concentrations being present in grapefruit (Citrus paradisi), bitter orange (Citrus aurantium), and pomelo (Citrus grandis). Because of its many positive effects on human health, naringin has been the focus of increasing attention in recent years. Recently, conventional extraction methods have been commonly replaced with unconventional methods, such as ultrasound-assisted extraction (UAE) and other, more eco-friendly extraction methods requiring little-to-no environmentally harmful solvents or significantly less energy. Naringin analysis is most commonly done via high-performance liquid chromatography (HPLC), and ultrahigh-performance liquid chromatography (UHPLC) coupled with a mass spectrometer (MS) or a photodiode array (DAD) detector. The aim of this review is to provide an overview of recent trends developments in the extraction, sample preparation, and liquid chromatographic analysis of the compound originating from citrus fruits or their products.
Collapse
Affiliation(s)
- Aron Csuti
- Department of Food Science, Széchenyi István University, 15 Lucsony Str, Mosonmagyaróvár, 9200, Hungary
| | - Beatrix Sik
- Department of Food Science, Széchenyi István University, 15 Lucsony Str, Mosonmagyaróvár, 9200, Hungary
| | - Zsolt Ajtony
- Department of Food Science, Széchenyi István University, 15 Lucsony Str, Mosonmagyaróvár, 9200, Hungary
| |
Collapse
|
5
|
Tuzimski T, Petruczynik A. Determination of Anti-Alzheimer's Disease Activity of Selected Plant Ingredients. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103222. [PMID: 35630702 PMCID: PMC9147832 DOI: 10.3390/molecules27103222] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/13/2022]
Abstract
Neurodegenerative diseases, among which one of the more common is Alzheimer’s disease, are the one of the biggest global public health challenges facing our generation because of the increasing elderly population in most countries. With the growing burden of these diseases, it is essential to discover and develop new treatment options capable of preventing and treating them. Neurodegenerative diseases, among which one of the most common is Alzheimer’s disease, are a multifactorial disease and therefore demand multiple therapeutic approaches. One of the most important therapeutic strategies is controlling the level of acetylcholine—a neurotransmitter in cholinergic synapses—by blocking the degradation of acetylcholine using acetylcholinesterase inhibitors such as tacrine, galantamine, donepezil and rivastigmine. However, these drugs can cause some adverse side effects, such as hepatotoxicity and gastrointestinal disorder. Thus, the search for new, more effective drugs is very important. In the last few years, different active constituents from plants have been tested as potential drugs in neurodegenerative disease therapy. The availability, lower price and less toxic effects of herbal medicines compared with synthetic agents make them a simple and excellent choice in the treatment of neurodegenerative diseases. The empirical approach to discovering new drugs from the systematic screening of plant extracts or plant-derived compounds is still an important strategy when it comes to finding new biologically active substances. The aim of this review is to identify new, safe and effective compounds that are potential candidates for further in vivo and clinical tests from which more effective drugs for the treatment of Alzheimer’s disease could be selected. We reviewed the methods used to determine anti-Alzheimer’s disease activity. Here, we have discussed the relevance of plant-derived compounds with in vitro activity. Various plants and phytochemical compounds have shown different activity that could be beneficial in the treatment of Alzheimer’s disorders. Most often, medicinal plants and their active components have been investigated as acetylcholinesterase and/or butyrylcholinesterase activity inhibitors, modifiers of β-amyloid processing and antioxidant agents. This study also aims to highlight species with assessed efficacy, usable plant parts and the most active plant components in order to identify species and compounds of interest for further study. Future research directions are suggested and recommendations made to expand the use of medicinal plants, their formulations and plant-derived active compounds to prevent, mitigate and treat Alzheimer’s disease.
Collapse
Affiliation(s)
- Tomasz Tuzimski
- Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.)
| | - Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
- Correspondence: (T.T.); (A.P.)
| |
Collapse
|
6
|
Hou W, Liu C, Li S, Zhang Y, Jin Y, Li X, Liu Z, Niu H, Xia J. An efficient strategy based on two-stage chromatography and in vitro evaluation for rapid screening and isolation of acetylcholinesterase inhibitors from Scutellaria baicalensis Georgi. J Sep Sci 2022; 45:1170-1184. [PMID: 34990521 DOI: 10.1002/jssc.202100918] [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: 11/17/2021] [Revised: 12/11/2021] [Accepted: 01/04/2022] [Indexed: 11/06/2022]
Abstract
The extraction of Scutellaria baicalensis Georgi was investigated using the response surface methodology-genetic algorithm mathematical regression model, and the extraction variables were optimized to maximize the flavonoid yield. Furthermore, a simple and efficient ultrafiltration-liquid chromatography-mass spectrometry and molecular docking methods was developed for the rapid screening and identification of acetylcholinesterase inhibitors present in Scutellaria baicalensis Georgi. Subsequently, four major chemical constituents, namely baicalein, norwogonin, wogonin, and oroxylin A, were identified as potent acetylcholinesterase inhibitors. This novel approach, involving the use of ultrafiltration-liquid chromatography-mass spectrometry and molecular docking methods combined with stepwise flow rate counter-current chromatography and semi-preparative high-performance liquid chromatography, could potentially provide a powerful tool for the screening and extraction of acetylcholinesterase inhibitors from complex matrices and be a useful platform for the production of bioactive and nutraceutical ingredients. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Wanchao Hou
- College of Chemistry, Jilin University, Changchun, 130021, China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, No. 677 North Chang-ji Road, Changchun, 130032, China
| | - Sainan Li
- Central Laboratory, Changchun Normal University, No. 677 North Chang-ji Road, Changchun, 130032, China
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, No. 677 North Chang-ji Road, Changchun, 130032, China
| | - Yongri Jin
- College of Chemistry, Jilin University, Changchun, 130021, China
| | - Xuwen Li
- College of Chemistry, Jilin University, Changchun, 130021, China
| | - Zhen Liu
- Central Laboratory, Changchun Normal University, No. 677 North Chang-ji Road, Changchun, 130032, China
| | - Huazhou Niu
- Central Laboratory, Changchun Normal University, No. 677 North Chang-ji Road, Changchun, 130032, China
| | - Jianli Xia
- Central Laboratory, Changchun Normal University, No. 677 North Chang-ji Road, Changchun, 130032, China
| |
Collapse
|
7
|
Li S, Li Y, Wang Y, Li R, Niu H, Liu C, Zhang Y. Ionic-liquid-based ultrasound-assisted extraction combined with counter-current chromatography and semi-preparative-LC for the preparation of monoamine oxidase B inhibitors from Pueraria thomsonii. J Sep Sci 2021; 45:1116-1127. [PMID: 34967131 DOI: 10.1002/jssc.202100799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 12/01/2021] [Accepted: 12/26/2021] [Indexed: 11/10/2022]
Abstract
A simple and efficient method was developed for the rapid screening and identification of ligands for monoamine oxidase B. A new ionic-liquid-based ultrasound-assisted extraction method for medicinal herbs was also developed and validated. In addition, the hyphenated technique of counter-current chromatography and semi-preparative-LC was developed and applied to the isolation of the chemical constituents for Pueraria thomsonii Benth. Three potent monoamine oxidase B inhibitors, viz. daidzein-4',7-diglucoside (42.2 mg), puerarin 6''-O-xyloside (88.3 mg), and 3'-hydroxypuerarin (48.5 mg) with purities of 98.2%, 96.3%, and 97.1%, respectively, were obtained from 500 g of P. thomsonii raw material using semi-HPLC, whereas 3'-methoxypuerarin (76.2 mg), daidzein-8-C-apiosyl (1→6) glucoside (84.2 mg), and tectorigenin (75.1 mg) with purities of 98.5%, 96.4%, and 96.8%, respectively, were obtained from 500 g raw material via counter-current chromatography using a two-phase solvent system comprising n-hexane-ethyl acetate-methanol-water at a volume ratio of 1.85:1.00:0.86:3.69 (v/v). Then, the anti-Alzheimer activity of the phytochemicals was assessed using a PC12 cell model. Treatment with tectorigenin, daidzein-4',7-diglucoside, puerarin 6''-O-xyloside, 3'-hydroxypuerarin, 3'-methoxypuerarin, and daidzein-8-C-apiosyl (1→6) glucoside (100 μg/mL), resulted in cell viabilities of 69.00%, 65.81%, 59.69%, 57.90%, 55.61%, and 54.59%, respectively (P < 0.001). The protocol was proved to be very accurate and efficient. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Sainan Li
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun, 130032, P. R. China
| | - Yanjie Li
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun, 130032, P. R. China
| | - Ying Wang
- Teacher development center, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun, P. R. China
| | - Ruizhe Li
- Jiujiu Biotechnology Company, No.126 Xinfa Road, Nanguan District, Changchun, P. R. China
| | - Huazhou Niu
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun, 130032, P. R. China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun, 130032, P. R. China
| | - Yuchi Zhang
- Central Laboratory, Changchun Normal University, No. 677 North Changji Road, Erdao District, Changchun, 130032, P. R. China
| |
Collapse
|
8
|
Muchiri RN, van Breemen RB. Drug discovery from natural products using affinity selection-mass spectrometry. DRUG DISCOVERY TODAY. TECHNOLOGIES 2021; 40:59-63. [PMID: 34916024 DOI: 10.1016/j.ddtec.2021.10.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/22/2022]
Abstract
As a starting point for drug discovery, affinity selection-mass spectrometry (AS-MS) is ideal for the discovery of lead compounds from chemically diverse sources such as botanical, fungal and microbial extracts. Based on binding interactions between macromolecular receptors and ligands of low molecular mass, AS-MS enables the rapid isolation of pharmacologically active small molecules from complex mixtures for mass spectrometric characterization and identification. Unlike conventional high-throughput screening, AS-MS requires no radiolabels, no UV or fluorescent chromophores, and is compatible with all classes of receptors, enzymes, incubation buffers, cofactors, and ligands. The most successful types of AS-MS include pulsed ultrafiltration (PUF) AS-MS, size exclusion chromatography (SEC) AS-MS, and magnetic microbead affinity selection screening (MagMASS), which differ in their approaches for separating the ligand-receptor complexes from the non-binding compounds in mixtures. After affinity isolation, the ligand(s) from the mixture are characterized using high resolution UHPLC-MS and tandem mass spectrometry. Based on these elemental composition and structural data, the identities of the lead compounds are determined by searching on-line databases for known natural products and by comparison with standards. The structures of novel natural products are determined using a combination of spectroscopic techniques including two-dimensional NMR and MS.
Collapse
Affiliation(s)
- Ruth N Muchiri
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, United States; College of Pharmacy, Oregon State University, Corvallis, OR 97331, United States
| | - Richard B van Breemen
- Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, United States; College of Pharmacy, Oregon State University, Corvallis, OR 97331, United States
| |
Collapse
|
9
|
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.
Collapse
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
| |
Collapse
|
10
|
Huang Y, Wang T, Jiang Z. Fast analysis of alkaloids from different parts of
Mahonia bealei
(Fort.) Carr. studied for their anti‐Alzheimer's activity using supercritical fluid chromatography. J Sep Sci 2021; 44:2006-2014. [DOI: 10.1002/jssc.202001079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 02/03/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Affiliation(s)
- Yang Huang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou Guangdong 511436 P.R. China
- Shenzhen Institute for Drug Control Shenzhen 518057 P.R. China
| | - Tiejie Wang
- Shenzhen Institute for Drug Control Shenzhen 518057 P.R. China
| | - Zhengjin Jiang
- Institute of Pharmaceutical Analysis College of Pharmacy Jinan University Guangzhou Guangdong 510632 P.R. China
| |
Collapse
|
11
|
Xia J, Liu C, Niu H, Hou W, Li S. Screening and isolation of potential lipoxidase and superoxide dismutase inhibitors from Scutellaria baicalensis Georgi using high-speed countercurrent chromatography target-guided by ultrafiltration-liquid chromatography-mass spectrometry. J Sep Sci 2021; 44:1371-1382. [PMID: 33433962 DOI: 10.1002/jssc.202001072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/21/2020] [Accepted: 01/08/2021] [Indexed: 12/27/2022]
Abstract
We present a simple and efficient method based on ultrafiltration high-performance liquid chromatography coupled with a photodiode array detector and electrospray ionization mass spectrometry for the rapid screening and identification of ligands obtainable from the extract of Scutellaria baicalensis. Five major compounds (chrysin-6-C-arabinosyl-8-C-glucoside, chrysin-6-C-glucosyl-8-C-arabinoside, baicalin, oroxylin A-7-O-glucuronide, and wogonoside) were identified as potentially effective inhibitors of lipoxidase and superoxide dismutase. Subsequently, specific binding ligands were separated by high-speed countercurrent chromatography, using ethyl acetate/ethyl alcohol/water acetate (0.1%) (1.0:0.1:1.0, v/v/v) as the solvent system. To the best of our knowledge, this is the first report of S. baicalensis extracts containing potent lipoxidase and superoxide dismutase inhibitors. Our results demonstrate that the systematic isolation of bioactive components from the n-butyl alcohol layer of S. baicalensis guided by ultrafiltration high-performance liquid chromatography coupled with photodiode array detection and electrospray ionization mass spectrometry represents a feasible and efficient technique that could also be employed for the identification and isolation of other enzyme inhibitors.
Collapse
Affiliation(s)
- Jianli Xia
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Chunming Liu
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Huazhou Niu
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Wanchao Hou
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| | - Sainan Li
- Central Laboratory, Changchun Normal University, Changchun, P. R. China
| |
Collapse
|
12
|
Muchiri RN, van Breemen RB. Affinity selection-mass spectrometry for the discovery of pharmacologically active compounds from combinatorial libraries and natural products. JOURNAL OF MASS SPECTROMETRY : JMS 2021; 56:e4647. [PMID: 32955158 DOI: 10.1002/jms.4647] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/15/2020] [Accepted: 08/11/2020] [Indexed: 05/12/2023]
Abstract
Invented to address the high-throughput screening (HTS) demands of combinatorial chemistry, affinity selection-mass spectrometry (AS-MS) utilizes binding interactions between ligands and receptors to isolate pharmacologically active compounds from mixtures of small molecules and then relies on the selectivity, sensitivity, and speed of mass spectrometry to identify them. No radiolabels, fluorophores, or chromophores are required. Although many variations of AS-MS have been devised, three approaches have emerged as the most flexible, productive, and popular, and they differ primarily in how ligand-receptor complexes are separated from nonbinding compounds in the mixture. These are pulsed ultrafiltration (PUF) AS-MS, size exclusion chromatography (SEC) AS-MS, and magnetic microbead affinity selection screening (MagMASS). PUF and SEC AS-MS are solution-phase screening approaches, and MagMASS uses receptors immobilized on magnetic microbeads. Because pools of compounds are screened using AS-MS, each containing hundreds to thousands of potential ligands, hundreds of thousands of compounds can be screened per day. AS-MS is also compatible with complex mixtures of chemically diverse natural products in extracts of botanicals and fungi and microbial cultures, which often contain fluorophores and chromophores that can interfere with convention HTS. Unlike conventional HTS, AS-MS may be used to discover ligands binding to allosteric as well as orthosteric receptor sites, and AS-MS has been useful for discovering ligands to targets that are not easily incorporated into conventional HTS such as membrane-bound receptors.
Collapse
Affiliation(s)
- Ruth N Muchiri
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, 97331, USA
| | - Richard B van Breemen
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon, 97331, USA
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis, Oregon, 97331, USA
| |
Collapse
|
13
|
Aluko RE. Food-derived Acetylcholinesterase Inhibitors as Potential Agents against Alzheimer’s Disease. EFOOD 2021. [DOI: 10.2991/efood.k.210318.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
14
|
Fermentation as an Alternative Process for the Development of Bioinsecticides. FERMENTATION 2020. [DOI: 10.3390/fermentation6040120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Currently, insect pest control is carried out through the application of synthetic insecticides which have been related to harmful effects on both human and environmental health, as well as to the development of resistant pest populations. In this context, the development of new and natural insecticides is necessary. Agricultural and forestry waste or by-products are very low-cost substrates that can be converted by microorganisms into useful value-added bioactive products through fermentation processes. In this review we discuss recent discoveries of compounds obtained from fermented substrates along with their insecticidal, antifeedant, and repellent activities. Fermentation products obtained from agricultural and forestry waste are described in detail. The fermentation of the pure secondary metabolite such as terpenes and phenols is also included.
Collapse
|