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Job N, Sarasan M, Philip R. Mangrove-associated endomycota: diversity and functional significance as a source of novel drug leads. Arch Microbiol 2023; 205:349. [PMID: 37789248 DOI: 10.1007/s00203-023-03679-6] [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: 05/15/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 10/05/2023]
Abstract
Endophytic fungi are known for their unprecedented ability to produce novel lead compounds of clinical and pharmaceutical importance. This review focuses on the unexplored fungal diversity associated with mangroves, emphasizing their biodiversity, distribution, and methodological approaches targeting isolation, and identification. Also highlights the bioactive compounds reported from the mangrove fungal endophytes. The compounds are categorized according to their reported biological activities including antimicrobial, antioxidant and cytotoxic property. In addition, protein kinase, α-glucosidase, acetylcholinesterase, tyrosinase inhibition, antiangiogenic, DNA-binding affinity, and calcium/potassium channel blocking activity are also reported. Exploration of these endophytes as a source of pharmacologically important compounds will be highly promising in the wake of emerging antibiotic resistance among pathogens. Thus, the aim of this review is to present a detailed report of mangrove derived endophytic fungi and to open an avenue for researchers to discover the possibilities of exploring these hidden mycota in developing novel drug leads.
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Affiliation(s)
- Neema Job
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
- Department of Marine Biosciences, Faculty of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Kochi, 682506, Kerala, India
| | - Manomi Sarasan
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India
| | - Rosamma Philip
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Fine Arts Avenue, Kochi, 682016, Kerala, India.
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Wang Z, Zhou Q, Liu S, Liao D, Liu P, Lan X. Anchoring of Polymer Loops on Enzyme-Immobilized Mesoporous ZIF-8 Enhances the Recognition Selectivity of Angiotensin-Converting Enzyme Inhibitory Peptides. Molecules 2023; 28:molecules28073117. [PMID: 37049880 PMCID: PMC10095817 DOI: 10.3390/molecules28073117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/25/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
Immobilized angiotensin-converting enzyme (ACE) is a promising material for the rapid screening of antihypertensive drugs, but the nonspecific adsorption is a serious problem in separation processes involving complex biological products. In this study, triblock copolymers with dopamine (DA) block as anchors and PEG block as the main body (DA-PEGx-DA) were attached to an immobilized ACE (ACE@mZIF-8/PDA, AmZP) surface via the “grafting to” strategy which endowed them with anti-nonspecific adsorption. The influence of DA-PEGx-DA chain length on nonspecific adsorption was confirmed. The excellent specificity and reusability of the obtained ACE@mZIF-8/PDA/DA-PEG5000-DA (AmZPP5000) was validated by screening two known ACE inhibitory peptides Val-Pro-Pro (VPP, competitive inhibitory peptides of ACE) and Gly-Met-Lys-Cys-Ala-Phe (GF-6, noncompetitive inhibitory peptides of ACE) from a mixture containing active and inactive compounds. These results demonstrate that anchored polymer loops are effective for high-recognition selectivity and AmZPP5000 is a promising compound for the efficient separation of ACE inhibitors in biological samples.
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Affiliation(s)
- Zefen Wang
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- Institute of Biological Manufacturing Technology Co., Ltd., Guangxi Institute of Industrial Technology, Nanning 530002, China
| | - Qian Zhou
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Siyuan Liu
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Minzu University, Nanning 530006, China
| | - Dankui Liao
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Pengru Liu
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Minzu University, Nanning 530006, China
- Key Laboratory of New Technology for Chemical and Biological Transformation Process of Guangxi Higher Education Institutes, Guangxi Minzu University, Nanning 530006, China
| | - Xiongdiao Lan
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Guangxi Minzu University, Nanning 530006, China
- Key Laboratory of New Technology for Chemical and Biological Transformation Process of Guangxi Higher Education Institutes, Guangxi Minzu University, Nanning 530006, China
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Miranda de Souza Duarte-Filho LA, Ortega de Oliveira PC, Yanaguibashi Leal CE, de Moraes MC, Picot L. Ligand fishing as a tool to screen natural products with anticancer potential. J Sep Sci 2023:e2200964. [PMID: 36808885 DOI: 10.1002/jssc.202200964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/23/2023]
Abstract
Cancer is the second leading cause of death in the world and its incidence is expected to increase with the aging of the world's population and globalization of risk factors. Natural products and their derivatives have provided a significant number of approved anticancer drugs and the development of robust and selective screening assays for the identification of lead anticancer natural products are essential in the challenge of developing personalized targeted therapies tailored to the genetic and molecular characteristics of tumors. To this end, a ligand fishing assay is a remarkable tool to rapidly and rigorously screen complex matrices, such as plant extracts, for the isolation and identification of specific ligands that bind to relevant pharmacological targets. In this paper, we review the application of ligand fishing with cancer-related targets to screen natural product extracts for the isolation and identification of selective ligands. We provide critical analysis of the system configurations, targets, and key phytochemical classes related to the field of anticancer research. Based on the data collected, ligand fishing emerges as a robust and powerful screening system for the rapid discovery of new anticancer drugs from natural resources. It is currently an underexplored strategy according to its considerable potential.
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Affiliation(s)
| | | | - Cíntia Emi Yanaguibashi Leal
- Departamento de Ciências Farmacêuticas, Pós-Graduação em Biociências (PGB) Universidade Federal do Vale do São Francisco, Petrolina, Brazil
| | - Marcela Cristina de Moraes
- Departamento de Química Orgânica, Laboratório BIOCROM, Instituto de Química, Universidade Federal Fluminense, Niterói, Brazil
| | - Laurent Picot
- UMR CNRS 7266 LIENSs, Département de Biotechnologie, La Rochelle Université, La Rochelle, France
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Luo Y, Luo X, Zhang T, Li S, Liu S, Ma Y, Wang Z, Jin X, Liu J, Wang X. Anti-Tumor Secondary Metabolites Originating from Fungi in the South China Sea's Mangrove Ecosystem. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9120776. [PMID: 36550982 PMCID: PMC9774444 DOI: 10.3390/bioengineering9120776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/14/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022]
Abstract
A mangrove is a unique ecosystem with abundant resources, in which fungi are an indispensable microbial part. Numerous mangrove fungi-derived secondary metabolites are considerable sources of novel bioactive substances, such as polyketides, terpenoids, alkaloids, peptides, etc., which arouse people's interest in the search for potential natural anti-tumor drugs. This review includes a total of 44 research publications that described 110 secondary metabolites that were all shown to be anti-tumor from 39 mangrove fungal strains belonging to 18 genera that were acquired from the South China Sea between 2016 and 2022. To identify more potential medications for clinical tumor therapy, their sources, unique structures, and cytotoxicity qualities were compiled. This review could serve as a crucial resource for the research status of mangrove fungal-derived natural products deserving of further development.
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Affiliation(s)
- Yuyou Luo
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiongming Luo
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Tong Zhang
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Siyuan Li
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Shuping Liu
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yuxin Ma
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zongming Wang
- Pituitary Tumor Center, Department of Neurosurgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiaobao Jin
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jing Liu
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Correspondence: (J.L.); (X.W.); Tel.: +86-134-2412-4716 (J.L.); +86-20-39352189 (X.W.)
| | - Xin Wang
- School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Correspondence: (J.L.); (X.W.); Tel.: +86-134-2412-4716 (J.L.); +86-20-39352189 (X.W.)
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Qi XW, Liu YM, Hu YK, Yuan H, Ayeni EA, Liao X. Ligand fishing based on tubular microchannel modified with monoamine oxidase B for screening of the enzyme's inhibitors from Crocus sativus and Edgeworthia gardneri. J Sep Sci 2022; 45:2394-2405. [PMID: 35461190 DOI: 10.1002/jssc.202200057] [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: 01/20/2022] [Revised: 03/24/2022] [Accepted: 04/17/2022] [Indexed: 11/07/2022]
Abstract
A novel strategy of performing ligand fishing with enzyme-modified open tubular microchannel was proposed for screening bioactive components present in medicinal plants. Monoamine oxidase B was immobilized onto the surface of the microchannel for the first time to specifically extract its ligands when the plant's extracts solution flows through the channel. The thermal and the storage stability of immobilized monoamine oxidase B were significantly enhanced after immobilization. Crocin I and Ⅱ were extracted from Crocus sativus, and tiliroside was extracted from Edgeworthia gardneri. All the three compounds were inhibitors of the enzyme with the half-maximal inhibitory concentration values of 26.70 ± 0.91, 19.88 ± 2.78, and 15.65 ± 0.85 μM, respectively. The enzyme inhibition kinetics and molecular docking were investigated. This is the first report on the inhibitory effects of tiliroside and crocin Ⅱ. The novel ligand fishing method proposed in this work possesses advantages of rapidness, high efficiency, and tiny sample consumption compared to routine ligand fishing, with promising potential for screening active natural products in complex mixtures.
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Affiliation(s)
- Xu-Wei Qi
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Yi-Ming Liu
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, Mississippi, USA
| | - Yi-Kao Hu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Hao Yuan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Emmanuel Ayodeji Ayeni
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China.,University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, P. R. China
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Xu J, Cao P, Fan Z, Luo X, Yang G, Qu T, Gao J. Rapid Screening of Lipase Inhibitors in Scutellaria baicalensis by Using Porcine Pancreatic Lipase Immobilized on Magnetic Core–Shell Metal–Organic Frameworks. Molecules 2022; 27:molecules27113475. [PMID: 35684413 PMCID: PMC9182405 DOI: 10.3390/molecules27113475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/22/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
As for ligand fishing, the current immobilization approaches have some potential drawbacks such as the small protein loading capacity and difficult recycle process. The core–shell metal–organic frameworks composite (Fe3O4-COOH@UiO-66-NH2), which exhibited both magnetic characteristics and large specific surface area, was herein fabricated and used as magnetic support for the covalent immobilization of porcine pancreatic lipase (PPL). The resultant composite Fe3O4-COOH@UiO-66-NH2@PPL manifested a high loading capacity (247.8 mg/g) and relative activity recovery (101.5%). In addition, PPL exhibited enhanced tolerance to temperature and pH after immobilization. Then, the composite Fe3O4-COOH@UiO-66-NH2@PPL was incubated with the extract of Scutellaria baicalensis to fish out the ligands. Eight lipase inhibitors were obtained and identified by UPLC-Q-TOF-MS/MS. The feasibility of the method was further confirmed through an in vitro inhibitory assay and molecular docking. The proposed ligand fishing technique based on Fe3O4-COOH@UiO-66-NH2@PPL provided a feasible, selective, and effective platform for discovering enzyme inhibitors from natural products.
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Affiliation(s)
| | | | | | | | | | | | - Jianping Gao
- Correspondence: Jianping Gao, E-mail: ; Tel.: +86-0351-398-5244
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Luo H, Qian Y, Qi J, Liu X. A novel strategy for screening angiotensin-converting enzyme inhibitors from natural products based on enzyme-immobilized ligand fishing combined with active-site blocking and directional enrichment. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1195:123203. [PMID: 35248900 DOI: 10.1016/j.jchromb.2022.123203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/25/2022] [Accepted: 02/28/2022] [Indexed: 11/28/2022]
Abstract
Some natural products are important sources of treatments for hypertension based on their potential inhibitory effects on angiotensin-converting enzyme (ACE); however, it is difficult to identify natural ACE inhibitors (ACEIs) due to the complex secondary metabolite environment of natural products. Enzyme immobilization is an important method for screening active constituents in natural products, but this method can sometimes return false-positive and false-negative results. To improve the accuracy and reliability of ligand-fishing methods, we established a novel strategy based on enzyme-immobilized ligand fishing combined with active-site blocking and directional enrichment technologies. We first synthesized ACE-immobilized mesoporous magnetic beads and then verified the screened compounds by molecular docking and in vitro activity detection. We then used active-site blocking to exclude non-specific binding constituents and applied directional enrichment to enrich the low-content constituents for ligand fishing. The screening identified six potential ACEIs from Scutellariae Radix and eight potential ACEIs from Lonicerae japonicae flos, and their inhibitory activity was confirmed by molecular docking simulations and in vitro activity detection. This process screened six additional compounds and excluded two false-positive results as compared with results exclusively using enzyme immobilization. This strategy provides a feasible method for screening active compounds in natural products.
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Affiliation(s)
- Hui Luo
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yin Qian
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, PR China
| | - Jin Qi
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Xinyu Liu
- Department of Medical Information and Biostatistics, School of Science, China Pharmaceutical University, Nanjing 211198, PR China.
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Magnetic particles for enzyme immobilization: A versatile support for ligand screening. J Pharm Biomed Anal 2021; 204:114286. [PMID: 34358814 DOI: 10.1016/j.jpba.2021.114286] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/20/2021] [Accepted: 07/25/2021] [Indexed: 12/12/2022]
Abstract
Enzyme inhibitors represent a substantial fraction of all small molecules currently in clinical use. Therefore, the early stage of drug-discovery process and development efforts are focused on the identification of new enzyme inhibitors through screening assays. The use of immobilized enzymes on solid supports to probe ligand-enzyme interactions have been employed with success not only to identify and characterize but also to isolate new ligands from complex mixtures. Between the available solid supports, magnetic particles have emerged as a promising support for enzyme immobilization due to the high superficial area, easy separation from the reaction medium and versatility. Particularly, the ligand fishing assay has been employed as a very useful tool to rapidly isolate bioactive compounds from complex mixtures, and hence the use of magnetic particles for enzyme immobilization has been widespread. Thus, this review provides a critical overview of the screening assays using immobilized enzymes on magnetic particles between 2006 and 2021.
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