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Tahmasebi A, Jamali B, Atabaki V, Sarker SD, Nahar L, Min HJ, Lee CW. A comprehensive review of the botany, ethnopharmacology, phytochemistry, and pharmacological activities of two Iranian Rydingia species (Lamiaceae). Fitoterapia 2024; 176:106026. [PMID: 38768794 DOI: 10.1016/j.fitote.2024.106026] [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: 02/03/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
Rydingia michauxii and R. persica, respectively, known as Kase Gol and Goldar in Persian, belong to the family Lamiaceae and they are well known herbal medicine in Iran for the treatment of various diseases, particularly diabetes. This review aims to appraise the phytochemistry, ethnopharmacology, and pharmacological activities of Rydingia species growing in Iran and assess their potential in clinical applications. Besides, it critically evaluates existing literature and looks into the perspective for further research and utilization. All available scientific literature was consulted using the database searches involving Google Scholar, PubMed, and Web of Science applying the keyword Rydingia and its Syn; Otostegia. Only the search results that are associated with the Iranian species R. michauxii and R. persica are included in this review. α-pinene, carvacrol, caryophyllene oxide, diisooctyl phthalate, dillapiole, eugenol, hexadecanoic acid, and pentacosane are the major constituents of the essential oils of the Rydingia species. Additionally, these species produce bioactive flavonoids, phenolic acids, steroids, and terpenoids. Extracts and active compounds from Rydingia species have been reported to possess various pharmacological activities including antidiabetic, anti-inflammatory, antimalarial, antimicrobial, antioxidant, cytotoxic, and lipid-lowering properties. Based on the information available to date on the Iranian Rydingia species, it will be worth subjecting these species to further developmental work involving preclinical and clinical trials.
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Affiliation(s)
- Aminallah Tahmasebi
- Department of Agriculture, Minab Higher Education Center, University of Hormozgan, Bandar Abbas, Iran; Plant Protection Research Group, University of Hormozgan, Bandar Abbas, Iran; Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea.
| | - Babak Jamali
- Department of Agriculture, Minab Higher Education Center, University of Hormozgan, Bandar Abbas, Iran
| | - Vahideh Atabaki
- Department of Pharmacognosy and Pharmaceutical Biotechnology, Faculty of Pharmacy, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Satyajit D Sarker
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Lutfun Nahar
- Laboratory of Growth Regulators, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences, Šlechtitelů 27, 78371 Olomouc, Czech Republic.
| | - Hye Jung Min
- Department of Cosmetic Science, Gwangju Women's University, Gwangju 62396, Republic of Korea.
| | - Chul Won Lee
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea.
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2
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Gundogdu O, Aytaç S, Şahin E, Kara Y. Unusual Rearrangements in Cyclohex-3-ene-1-carboxamide Derivatives: Pathway to Bicyclic Lactones. ACS OMEGA 2024; 9:22970-22978. [PMID: 38826534 PMCID: PMC11137725 DOI: 10.1021/acsomega.4c02183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 06/04/2024]
Abstract
The synthesis of new bicyclic lactone derivatives was carried out starting from 2-methyl/phenyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione. 6-(Hydroxymethyl)-N-methyl/phenylcyclohex-3-ene-1-carboxamide derivatives were obtained from the reduction of tetrahydro-1H-isoindole-1,3(2H)-diones with NaBH4. Bromination and epoxidation reactions of both compounds were examined, and the structures of the resulting products were determined by spectroscopic methods. Substituted bicyclic lactone compounds, which are interesting rearrangement products in both bromination and epoxidation reactions, were obtained. In particular, hydroxymethyl (-CH2OH) and amide (-CONHR) groups attached to the cyclohexene ring in the bromination and epoxidation reactions were found to be effective in product formation. As a result, a new and applicable method was developed for the synthesis of bicyclic lactone derivatives.
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Affiliation(s)
- Ozlem Gundogdu
- Department
of Food Technology, Kaman Vocational School, Ahi Evran University, Kirsehir 40100, Turkey
- Department
of Chemistry, Faculty of Science, Atatürk
University, Erzurum 25240, Turkey
| | - Sertan Aytaç
- Department
of Food Technology, Kaman Vocational School, Ahi Evran University, Kirsehir 40100, Turkey
- Department
of Chemistry, Faculty of Science, Atatürk
University, Erzurum 25240, Turkey
| | - Ertan Şahin
- Department
of Chemistry, Faculty of Science, Atatürk
University, Erzurum 25240, Turkey
| | - Yunus Kara
- Department
of Chemistry, Faculty of Science, Atatürk
University, Erzurum 25240, Turkey
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3
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de Souza Rodrigues R, de Souza AQL, Feitoza MDO, Alves TCL, Barbosa AN, da Silva Santiago SRS, de Souza ADL. Biotechnological potential of actinomycetes in the 21st century: a brief review. Antonie Van Leeuwenhoek 2024; 117:82. [PMID: 38789815 DOI: 10.1007/s10482-024-01964-y] [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: 08/31/2023] [Accepted: 04/07/2024] [Indexed: 05/26/2024]
Abstract
This brief review aims to draw attention to the biotechnological potential of actinomycetes. Their main uses as sources of antibiotics and in agriculture would be enough not to neglect them; however, as we will see, their biotechnological application is much broader. Far from intending to exhaust this issue, we present a short survey of the research involving actinomycetes and their applications published in the last 23 years. We highlight a perspective for the discovery of new active ingredients or new applications for the known metabolites of these microorganisms that, for approximately 80 years, since the discovery of streptomycin, have been the main source of antibiotics. Based on the collected data, we organize the text to show how the cosmopolitanism of actinomycetes and the evolutionary biotic and abiotic ecological relationships of actinomycetes translate into the expression of metabolites in the environment and the richness of biosynthetic gene clusters, many of which remain silenced in traditional laboratory cultures. We also present the main strategies used in the twenty-first century to promote the expression of these silenced genes and obtain new secondary metabolites from known or new strains. Many of these metabolites have biological activities relevant to medicine, agriculture, and biotechnology industries, including candidates for new drugs or drug models against infectious and non-infectious diseases. Below, we present significant examples of the antimicrobial spectrum of actinomycetes, which is the most commonly investigated and best known, as well as their non-antimicrobial spectrum, which is becoming better known and increasingly explored.
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Affiliation(s)
- Rafael de Souza Rodrigues
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.
- Central Analítica, Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 6200, Coroado I, Manaus, Amazonas, CEP 69.077-000, Brazil.
| | - Antonia Queiroz Lima de Souza
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Central Analítica, Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 6200, Coroado I, Manaus, Amazonas, CEP 69.077-000, Brazil
- Faculdade de Ciências Agrárias, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | | | | | - Anderson Nogueira Barbosa
- Central Analítica, Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 6200, Coroado I, Manaus, Amazonas, CEP 69.077-000, Brazil
| | - Sarah Raquel Silveira da Silva Santiago
- Central Analítica, Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 6200, Coroado I, Manaus, Amazonas, CEP 69.077-000, Brazil
| | - Afonso Duarte Leão de Souza
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Central Analítica, Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Av. General Rodrigo Octavio Jordão Ramos, 6200, Coroado I, Manaus, Amazonas, CEP 69.077-000, Brazil
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
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Wang H, Huang X, Pan Y, Zhang G, Tang S, Shao H, Jiao W. Synthesis and Biological Evaluation of New Dihydrofuro[3,2- b]piperidine Derivatives as Potent α-Glucosidase Inhibitors. Molecules 2024; 29:1179. [PMID: 38474691 DOI: 10.3390/molecules29051179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/22/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Inhibition of glycoside hydrolases has widespread application in the treatment of diabetes. Based on our previous findings, a series of dihydrofuro[3,2-b]piperidine derivatives was designed and synthesized from D- and L-arabinose. Compounds 32 (IC50 = 0.07 μM) and 28 (IC50 = 0.5 μM) showed significantly stronger inhibitory potency against α-glucosidase than positive control acarbose. The study of the structure-activity relationship of these compounds provides a new clue for the development of new α-glucosidase inhibitors.
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Affiliation(s)
- Haibo Wang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Zhejiang Hongyuan Pharmaceutical Co., Ltd., Linhai 317016, China
| | - Xiaojiang Huang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Pan
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqing Zhang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Senling Tang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huawu Shao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei Jiao
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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5
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Khan M, Ahad G, Alam A, Ullah S, Khan A, Kanwal, Salar U, Wadood A, Ajmal A, Khan KM, Perveen S, Uddin J, Al-Harrasi A. Synthesis of new bis(dimethylamino)benzophenone hydrazone for diabetic management: In-vitro and in-silico approach. Heliyon 2024; 10:e23323. [PMID: 38163112 PMCID: PMC10757017 DOI: 10.1016/j.heliyon.2023.e23323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024] Open
Abstract
Inhibiting α-glucosidase is a reliable method for reducing blood sugar levels in diabetic individuals. Bis(dimethylamino)benzophenone derivatives 1-27 were synthesized from bis(dimethylamino)benzophenone via two-step reaction. Different spectroscopic techniques, including EI-MS and 1H NMR, were employed to characterize all synthetic derivatives. The elemental composition of synthetic compounds was confirmed by elemental analysis and results were found in agreement with the calculated values. The synthetic compounds 1-27 were evaluated for α-glucosidase inhibitory activity, except five compounds all derivatives showed good to moderate inhibitory potential in the range of IC50 = 0.28 ± 2.65 - 0.94 ± 2.20 μM. Among them, the most active compounds were 5, 8, 9, and 12 with IC50 values of 0.29 ± 4.63, 0.29 ± 0.93, 0.28 ± 3.65, and 0.28 ± 2.65, respectively. Furthermore, all these compounds were found to be non-toxic on human fibroblast cell lines (BJ cell lines). Kinetics study of compounds 8 and 9 revealed competitive type of inhibition with Ki values 2.79 ± 0.011 and 3.64 ± 0.012 μM, respectively. The binding interactions of synthetic compounds were also confirmed through molecular docking studies that indicated that compounds fit well in the active site of enzyme. Furthermore, a total of 30ns MD simulation was carried out for the most potent complexes of the series. The molecular dynamics study revealed that compound-8 and compound-12 were stable during the MD simulation.
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Affiliation(s)
- Momin Khan
- Department of Chemistry, Abdul Wali Khan University, Mardan, 23200, Pakistan
| | - Ghulam Ahad
- Department of Chemistry, Abdul Wali Khan University, Mardan, 23200, Pakistan
| | - Aftab Alam
- Department of Chemistry, University of Malakand, Chakdara, Lower Dir, 18800, Pakistan
| | - Saeed Ullah
- Natural & Medical Sciences Research Center, University of Nizwa, P.O Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman
| | - Ajmal Khan
- Natural & Medical Sciences Research Center, University of Nizwa, P.O Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman
| | - Kanwal
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Uzma Salar
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Abdul Wadood
- Department of Biochemistry, Abdul Wali Khan University, Mardan, 23200, Pakistan
| | - Amar Ajmal
- Department of Biochemistry, Abdul Wali Khan University, Mardan, 23200, Pakistan
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 31441, Dammam, Saudi Arabia
| | - Shahnaz Perveen
- PCSIR Laboratories Complex, Karachi, Shahrah-e-Dr. Salimuzzaman Siddiqui, Karachi, 75280, Pakistan
| | - Jalal Uddin
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, 62529, Kingdom of Saudi Arabia
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Center, University of Nizwa, P.O Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman
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6
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Wang S, Wang M, Cui J, Lian D, Li L. Inhibition Effect of Okanin Toward Human Cytochrome P450 3A4 and 2D6 with Multi-spectroscopic Studies and Molecular Docking. J Fluoresc 2024; 34:203-212. [PMID: 37191827 DOI: 10.1007/s10895-023-03258-4] [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: 04/04/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023]
Abstract
Okanin, a major flavonoid of a popular herb tea, Coreopsis tinctoria Nutt., showed strong inhibition on CYP3A4 and CYP2D6. The strong interaction between okanin and CYPs were determined by enzyme kinetics, multispectral technique and molecular docking. The inhibition type of two enzymes, CYP3A4 and CYP2D6, by okanin are mixed and non-competitive inhibition type, respectively. The IC50 values and the binding constant of okanin to CYP3A4 can be deduced that the interaction was stronger than that of CYP2D6. The Conformations of CYP3A4 and CYP2D6 were changed by okanin. The evidence from fluorescence measurement along with molecular docking verified that these two CYPs were bound with okanin by hydrogen bonds and hydrophobic forces. Our investigation suggested that okanin may lead to interactions between herb and drug by inhibiting CYP3A4 and CYP2D6 activities, thus its consumption should be taken with caution.
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Affiliation(s)
- Suqing Wang
- The College of Chemistry, Changchun Normal University, Changchun, 130032, China
| | - Meizi Wang
- The College of Chemistry, Changchun Normal University, Changchun, 130032, China
| | - Jingjing Cui
- The College of Chemistry, Changchun Normal University, Changchun, 130032, China
| | - Di Lian
- The College of Chemistry, Changchun Normal University, Changchun, 130032, China
| | - Li Li
- The College of Chemistry, Changchun Normal University, Changchun, 130032, China.
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7
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Prasch H, Wolfsgruber A, Thonhofer M, Culum A, Mandl C, Weber P, Zündel M, Nasseri SA, Gonzalez Santana A, Tegl G, Nidetzky B, Gruber K, Stütz AE, Withers SG, Wrodnigg TM. Ligand-Directed Chemistry on Glycoside Hydrolases - A Proof of Concept Study. Chembiochem 2023; 24:e202300480. [PMID: 37715738 DOI: 10.1002/cbic.202300480] [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: 07/27/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/18/2023]
Abstract
Selective covalent labelling of enzymes using small molecule probes has advanced the scopes of protein profiling. The covalent bond formation to a specific target is the key step of activity-based protein profiling (ABPP), a method which has become an indispensable tool for measuring enzyme activity in complex matrices. With respect to carbohydrate processing enzymes, strategies for ABPP so far involve labelling the active site of the enzyme, which results in permanent loss of activity. Here, we report in a proof of concept study the use of ligand-directed chemistry (LDC) for labelling glycoside hydrolases near - but not in - the active site. During the labelling process, the competitive inhibitor is cleaved from the probe, departs the active site and the enzyme maintains its catalytic activity. To this end, we designed a building block synthetic concept for small molecule probes containing iminosugar-based reversible inhibitors for labelling of two model β-glucosidases. The results indicate that the LDC approach can be adaptable for covalent proximity labelling of glycoside hydrolases.
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Affiliation(s)
- Herwig Prasch
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Andreas Wolfsgruber
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Martin Thonhofer
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - André Culum
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Christoph Mandl
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Patrick Weber
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Melanie Zündel
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Seyed A Nasseri
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
| | - Andres Gonzalez Santana
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
| | - Gregor Tegl
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 10-12/I, 8010, Graz, Austria
| | - Bernd Nidetzky
- Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 10-12/I, 8010, Graz, Austria
| | - Karl Gruber
- University of Graz, Institute of Molecular Bioscience, Humboldtstraße 50/III, 8010, Graz, Austria
| | - Arnold E Stütz
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
| | - Stephen G Withers
- University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, BC, V6T 1Z1, Canada
| | - Tanja M Wrodnigg
- Graz University of Technology, Institute of Chemistry and Technology of Biobased Systems, Stremayrgasse 9, 8010, Graz, Austria
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8
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Zhang S, Ni D, Zhu Y, Xu W, Zhang W, Mu W. A comprehensive review on the properties, production, and applications of functional glucobioses. Crit Rev Food Sci Nutr 2023:1-14. [PMID: 37819266 DOI: 10.1080/10408398.2023.2261053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Glucobiose is a range of disaccharides consisting of two glucose molecules, generally including trehalose, kojibiose, sophorose, nigerose, laminaribiose, maltose, cellobiose, isomaltose, and gentiobiose. The difference glycosidic bonds of two glucose molecules result in the diverse molecular structures, physiochemical properties and physiological functions of these glucobioses. Some glucobioses are abundant in nature but have unconspicuous roles on health like maltose, whereas some rare glucobioses display remarkable biological effects. It is unpractical process to extract these rare glucobioses from natural resources, while biological synthesis is a feasible approach. Recently, the production and application of glucobiose have attracted considerable attention. This review provides a comprehensive overview of glucobioses, including their natural sources and physicochemical properties like structure, sweetness, digestive performance, toxicology, and cariogenicity. Specific enzymes used for the production of various glucobioses and fermentation production processes are summarized. Additionally, their versatile functions and broad applications are also introduced.
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Affiliation(s)
- Shuqi Zhang
- State Key Laboratory of Food Science and Resoruces, Jiangnan University, Wuxi, Jiangsu, China
| | - Dawei Ni
- State Key Laboratory of Food Science and Resoruces, Jiangnan University, Wuxi, Jiangsu, China
| | - Yingying Zhu
- State Key Laboratory of Food Science and Resoruces, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Xu
- State Key Laboratory of Food Science and Resoruces, Jiangnan University, Wuxi, Jiangsu, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Resoruces, Jiangnan University, Wuxi, Jiangsu, China
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Resoruces, Jiangnan University, Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
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9
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Zahra FT, Saeed A, Ahmed A, Ismail H, Ijaz MU, Albericio F. Synthesis of amantadine clubbed N-aryl amino thiazoles as potent urease, α-amylase & α-glucosidase inhibitors, kinetic and molecular docking studies. RSC Adv 2023; 13:24988-25001. [PMID: 37614781 PMCID: PMC10442672 DOI: 10.1039/d3ra05330j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023] Open
Abstract
A series of ten novel compounds were synthesized by incorporating a 1,3 thiazole core into amantadine and their structures were validated using different analytical and spectral methods such as FTIR, EI-MS, 1H NMR, and 13C NMR. The antibacterial and enzyme inhibitory properties of these newly synthesized compounds were evaluated. Remarkably, the compounds exhibited significant antibacterial activity against Escherichia coli and Bacillus subtilis. Additionally, the in vitro inhibitory activities of the synthesized compounds, against α-amylase, α-glucosidase, and urease were investigated. Among the tested compounds, compound 6d demonstrated potent and selective inhibition of α-amylase IC50 = 97.37 ± 1.52 μM, while acarbose was used as positive control and exhibited IC50 = 5.17 ± 0.25 μM. Compound 6d and 6e exhibited prominent inhibition against α-glucosidase IC50 = 38.73 ± 0.80 μM and 41.63 ± 0.26 μM respectively. Furthermore, compound 6d inhibited urease with exceptional efficacy IC50 = 32.76 μM, while positive control thiourea showed more prominent activity having IC50 = 1.334 μM. Molecular docking studies disclosed the binding mechanism and affinity of these new inhibitors within the binding sites of various amino acids. To investigate the association between molecular structural characteristics and inhibitory actions of synthesized derivatives, preliminary structure-activity relationship (SAR) studies were performed. These findings indicated that compounds 6a, 6c, 6d and 6e are potential candidates for hit-to-lead follow-up in the drug-discovery process for treating diabetes and hyperglycemia.
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Affiliation(s)
- Fatima Tuz Zahra
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Aamer Saeed
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Atteeque Ahmed
- Department of Chemistry, Quaid-i-Azam University 45320 Islamabad Pakistan +92-51-9064-2241 +92-51-9064-2128
| | - Hammad Ismail
- Department of Biochemistry and Biotechnology, University of Gujrat Gujrat 50700 Pakistan
| | - Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture Faisalabad 38040 Pakistan
| | - Fernando Albericio
- Peptides Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal Westville Durban 4000 South Africa
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Department of Organic Chemistry, University of Barcelona 08028 Barcelona Spain
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10
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Vinaykumar A, Surender B, Rao BV. Chemoselective Nozaki-Hiyama-Takai-Kishi and Grignard reaction: short synthesis of some carbahexopyranoses. RSC Adv 2023; 13:22824-22830. [PMID: 37520087 PMCID: PMC10375257 DOI: 10.1039/d3ra03704e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023] Open
Abstract
A common, divergent, efficient, stereoselective and short approach for the total syntheses of some carbahexopyranoses namely, MK7607, (-)-gabosine A, (-)-conduritol E, (-)-conduritol F, 6a-carba-β-d-fructopyranose and other carbasugars using chemoselective Grignard or Nozaki-Hiyama-Takai-Kishi (NHTK) reactions and RCM. Herein, the Grignard and NHTK reactions are able to differentiate the reactivity difference between lactol or lactolacetate and aldehyde of 2 & 6 under given conditions to give the desired skeleton chemoselectivity.
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Affiliation(s)
- Allam Vinaykumar
- Fluoro-Agrochemicals, CSIR-Indian Institute of Chemical Technology Hyderabad India
| | - Banothu Surender
- Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology Hyderabad India
| | - Batchu Venkateswara Rao
- Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology Hyderabad India
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11
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Emadi M, Halimi M, Moazzam A, Hosseini S, Mojtabavi S, Faramarzi MA, Ghadimi R, Moghadamnia AA, Nasli-Esfahani E, Mohammadi-Khanaposhtani M, Mahdavi M. Design, synthesis, in vitro anti-α-glucosidase evaluations, and computational studies of new phthalimide-phenoxy-1,2,3-triazole-N-phenyl (or benzyl) acetamides as potential anti-diabetic agents. Sci Rep 2023; 13:10030. [PMID: 37340010 DOI: 10.1038/s41598-023-36890-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 06/12/2023] [Indexed: 06/22/2023] Open
Abstract
An important target in the treatment of type 2 diabetes is α-glucosidase. Inhibition of this enzyme led to delay in glucose absorption and decrease in postprandial hyperglycemia. A new series of phthalimide-phenoxy-1,2,3-triazole-N-phenyl (or benzyl) acetamides 11a-n were designed based on the reported potent α-glucosidase inhibitors. These compounds were synthesized and screened for their in vitro inhibitory activity against the latter enzyme. The majority of the evaluated compounds displayed high inhibition effects (IC50 values in the range of 45.26 ± 0.03-491.68 ± 0.11 µM) as compared to the positive control acarbose (IC50 value = 750.1 ± 0.23 µM). Among this series, compounds 11j and 11i represented the most potent α-glucosidase inhibitory activities with IC50 values of 45.26 ± 0.03 and 46.25 ± 0.89 µM. Kinetic analysis revealed that the compound 11j is a competitive inhibitor with a Ki of 50.4 µM. Furthermore, the binding interactions of the most potent compounds in α-glucosidase active site were studied through molecular docking and molecular dynamics. The latter studies confirmed the obtained results through in vitro experiments. Furthermore, in silico pharmacokinetic study of the most potent compounds was also performed.
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Affiliation(s)
- Mehdi Emadi
- Electrical and Computer Engineering Department, Babol Noshirvani University of Technology, Babol, Iran
| | - Mohammad Halimi
- Department of Biology, Babol Branch, Islamic Azad University, Babol, Iran
| | - Ali Moazzam
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Somayeh Mojtabavi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Ghadimi
- Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ali Akbar Moghadamnia
- Department of Pharmacology and Toxicology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ensieh Nasli-Esfahani
- Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mohammadi-Khanaposhtani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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12
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Nguyen VB, Wang SL, Phan TQ, Pham THT, Huang HT, Liaw CC, Nguyen AD. Screening and Elucidation of Chemical Structures of Novel Mammalian α-Glucosidase Inhibitors Targeting Anti-Diabetes Drug from Herbals Used by E De Ethnic Tribe in Vietnam. Pharmaceuticals (Basel) 2023; 16:ph16050756. [PMID: 37242539 DOI: 10.3390/ph16050756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/25/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Among ten extracts of indigenous medicinal plants, the MeOH extract of Terminalia triptera Stapf. (TTS) showed the most efficient mammalian α-glucosidase inhibition for the first time. The data of screening bioactive parts used indicated that the TTS trunk bark and leaves extracts demonstrated comparable and higher effects compared to acarbose, a commercial anti-diabetic drug, with half-maximal inhibitory concentration (IC50) values of 181, 331, and 309 µg/mL, respectively. Further bioassay-guided purification led to the isolation of three active compounds from the TTS trunk bark extract and identified as (-)-epicatechin (1), eschweilenol C (2), and gallic acid (3). Of these, compounds 1 and 2 were determined as novel and potent mammalian α-glucosidase inhibitors. The virtual study indicated that these compounds bind to α-glucosidase (Q6P7A9) with acceptable RMSD values (1.16-1.56 Å) and good binding energy (DS values in the range of -11.4 to -12.8 kcal/mol) by interacting with various prominent amino acids to generate five and six linkages, respectively. The data of Lipinski's rule of five and absorption, distribution, metabolism, excretion and toxicity (ADMET)-based pharmacokinetics and pharmacology revealed that these purified compounds possess anti-diabetic drug properties, and the compounds are almost not toxic for human use. Thus, the findings of this work suggested that (-)-epicatechin and eschweilenol C are novel potential mammalian α-glucosidase inhibitor candidates for type 2 diabetes treatment.
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Affiliation(s)
- Van Bon Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
| | - San-Lang Wang
- Department of Chemistry, Tamkang University, New Taipei City 25137, Taiwan
- Life Science Development Center, Tamkang University, New Taipei City 25137, Taiwan
| | - Tu Quy Phan
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
| | - Thi Huyen Thoa Pham
- Department of Science and Technology, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
| | - Hung-Tse Huang
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 11221, Taiwan
| | - Chia-Ching Liaw
- Division of Chinese Materia Medica Development, National Research Institute of Chinese Medicine, Taipei 11221, Taiwan
| | - Anh Dzung Nguyen
- Institute of Biotechnology and Environment, Tay Nguyen University, Buon Ma Thuot 630000, Vietnam
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13
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Vester-Christensen MB, Holck J, Rejzek M, Perrin L, Tovborg M, Svensson B, Field RA, Møller MS. Exploration of the Transglycosylation Activity of Barley Limit Dextrinase for Production of Novel Glycoconjugates. Molecules 2023; 28:4111. [PMID: 37241852 PMCID: PMC10223164 DOI: 10.3390/molecules28104111] [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: 04/01/2023] [Revised: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
A few α-glucan debranching enzymes (DBEs) of the large glycoside hydrolase family 13 (GH13), also known as the α-amylase family, have been shown to catalyze transglycosylation as well as hydrolysis. However, little is known about their acceptor and donor preferences. Here, a DBE from barley, limit dextrinase (HvLD), is used as a case study. Its transglycosylation activity is studied using two approaches; (i) natural substrates as donors and different p-nitrophenyl (pNP) sugars as well as different small glycosides as acceptors, and (ii) α-maltosyl and α-maltotriosyl fluorides as donors with linear maltooligosaccharides, cyclodextrins, and GH inhibitors as acceptors. HvLD showed a clear preference for pNP maltoside both as acceptor/donor and acceptor with the natural substrate pullulan or a pullulan fragment as donor. Maltose was the best acceptor with α-maltosyl fluoride as donor. The findings highlight the importance of the subsite +2 of HvLD for activity and selectivity when maltooligosaccharides function as acceptors. However, remarkably, HvLD is not very selective when it comes to aglycone moiety; different aromatic ring-containing molecules besides pNP could function as acceptors. The transglycosylation activity of HvLD can provide glycoconjugate compounds with novel glycosylation patterns from natural donors such as pullulan, although the reaction would benefit from optimization.
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Affiliation(s)
- Malene Bech Vester-Christensen
- Enzyme and Protein Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark; (M.B.V.-C.); (B.S.)
| | - Jesper Holck
- Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;
| | - Martin Rejzek
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7TJ, UK; (M.R.); (R.A.F.)
| | - Léa Perrin
- Applied Molecular Enzyme Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;
| | | | - Birte Svensson
- Enzyme and Protein Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark; (M.B.V.-C.); (B.S.)
| | - Robert A. Field
- Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7TJ, UK; (M.R.); (R.A.F.)
| | - Marie Sofie Møller
- Applied Molecular Enzyme Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark;
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14
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Grayfer T, Yamani K, Jung E, Chesnokov GA, Ferrara I, Hsiao CC, Georgiou A, Michel J, Bailly A, Sieber S, Eberl L, Gademann K. Allylic Carbocyclic Inhibitors Covalently Bind Glycoside Hydrolases. JACS AU 2023; 3:1151-1161. [PMID: 37124289 PMCID: PMC10131216 DOI: 10.1021/jacsau.3c00037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/08/2023] [Accepted: 03/08/2023] [Indexed: 05/03/2023]
Abstract
Allylic cyclitols were investigated as covalent inhibitors of glycoside hydrolases by chemical, enzymatic, proteomic, and computational methods. This approach was inspired by the C7 cyclitol natural product streptol glucoside, which features a potential carbohydrate leaving group in the 4-position (carbohydrate numbering). To test this hypothesis, carbocyclic inhibitors with leaving groups in the 4- and 6- positions were prepared. The results of enzyme kinetics analyses demonstrated that dinitrophenyl ethers covalently inhibit α-glucosidases of the GH13 family without reactivation. The labeled enzyme was studied by proteomics, and the active site residue Asp214 was identified as modified. Additionally, computational studies, including enzyme homology modeling and density functional theory (DFT) calculations, further delineate the electronic and structural requirements for activity. This study demonstrates that previously unexplored 4- and 6-positions can be exploited for successful inhibitor design.
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Affiliation(s)
- Tatyana
D. Grayfer
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Khalil Yamani
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Erik Jung
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Gleb A. Chesnokov
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Isabella Ferrara
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Chien-Chi Hsiao
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Antri Georgiou
- Department
of Plant and Microbial Biology, University
of Zurich, Zollikerstrasse
107, 8008 Zürich, Switzerland
| | - Jeremy Michel
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Aurélien Bailly
- Department
of Plant and Microbial Biology, University
of Zurich, Zollikerstrasse
107, 8008 Zürich, Switzerland
| | - Simon Sieber
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Leo Eberl
- Department
of Plant and Microbial Biology, University
of Zurich, Zollikerstrasse
107, 8008 Zürich, Switzerland
| | - Karl Gademann
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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15
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Renault J, Bouvry C, Cupif JF, Hurvois JP. Alkylation of N, N-Dibenzylaminoacetonitrile: From Five- to Seven-Membered Nitrogen-Containing Heterocyclic Systems. J Org Chem 2023; 88:3582-3598. [PMID: 36848662 DOI: 10.1021/acs.joc.2c02795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
The syntheses of several alkaloids and nitrogen-containing compounds including N-Boc-coniine (14b), pyrrolizidine (1), δ-coniceine (2), and pyrrolo[1,2a]azepine (3) are described. New C-C bonds in the α position relative to the nitrogen atom were formed by the alkylation of metalated α-aminonitriles 4 and 6a-c with alkyl iodides possessing the requisite size and functionality. In all of the reported cases, the pyrrolidine ring was formed in the aqueous medium through a favorable 5-exo-tet process involving a primary or a secondary amino group and a terminal δ-leaving group. Conversely, the azepane ring was efficiently formed in N,N-dimethylformamide (DMF), as the preferred aprotic solvent, through an unreported 7-exo-tet cyclization process involving a more nucleophilic sodium amide and a terminal mesylate borne by a saturated six carbon chain unit. In this way, we successfully synthesized pyrrolo[1,2a]azepane 3 and 2-propyl-azepane 14c in good yields from inexpensive and readily available materials without tedious separation methods.
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Affiliation(s)
- Jacques Renault
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques Rennes), UMR 6226, F-35000 Rennes, France
| | - Christelle Bouvry
- Comprehensive Cancer Center Eugène Marquis, Avenue de la Bataille Flandre-Dunkerque, 35000 Rennes, France
| | - Jean-François Cupif
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques Rennes), UMR 6226, F-35000 Rennes, France
| | - Jean-Pierre Hurvois
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques Rennes), UMR 6226, F-35000 Rennes, France
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16
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Chemical and Biological Review of Endophytic Fungi Associated with Morus sp. (Moraceae) and In Silico Study of Their Antidiabetic Potential. Molecules 2023; 28:molecules28041718. [PMID: 36838706 PMCID: PMC9968060 DOI: 10.3390/molecules28041718] [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: 01/08/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
The chronic nature of diabetes mellitus motivates the quest for novel agents to improve its management. The scarcity and prior uncontrolled utilization of medicinal plants have encouraged researchers to seek new sources of promising compounds. Recently, endophytes have presented as eco-friendly leading sources for bioactive metabolites. This article reviewed the endophytic fungi associated with Morus species and their isolated compounds, in addition to the biological activities tested on their extracts and chemical constituents. The relevant literature was collected from the years 2008-2022 from PubMed and Web of Science databases. Notably, no antidiabetic activity was reported for any of the Morus-associated endophytic fungal extracts or their twenty-one previously isolated compounds. This encouraged us to perform an in silico study on the previously isolated compounds to explore their possible antidiabetic potential. Furthermore, pharmacokinetic and dynamic stability studies were performed on these compounds. Upon molecular docking, Colletotrichalactone A (14) showed a promising antidiabetic activity due to the inhibition of the α-amylase local target and the human sodium-glucose cotransporter 2 (hSGT2) systemic target with safe pharmacokinetic features. These results provide an in silico interpretation of the possible anti-diabetic potential of Morus endophytic metabolites, yet further study is required.
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17
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Kumar H, Dhameja M, Kurella S, Uma A, Gupta P. Synthesis, in-vitro α-glucosidase inhibition and molecular docking studies of 1,3,4-thiadiazole-5,6-diphenyl-1,2,4-triazine hybrids: Potential leads in the search of new antidiabetic drugs. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Imai Y, Wakasugi D, Suzuki R, Kato S, Sugisaki M, Mima M, Miyagawa H, Endo M, Fujimoto N, Fukunaga T, Kato S, Kuroda S, Takahashi T, Kakinuma H. Lead identification of novel tetrahydroimidazo[1,2-a]pyridine-5-carboxylic acid derivative as a potent heparanase-1 inhibitor. Bioorg Med Chem Lett 2023; 79:129050. [PMID: 36368497 DOI: 10.1016/j.bmcl.2022.129050] [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: 09/21/2022] [Revised: 10/28/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
Abstract
Heparanase-1 (HPSE1) is an endo-β-d-glucuronidase that cleaves heparan sulfate proteoglycans into short-chain heparan sulfates (HS). The inhibition of HPSE1 has therapeutic potential for proteinuric diseases such as nephrotic syndrome because increased HPSE1 expression is associated with the loss of HS in the glomerular basement membrane, leading to the development of proteinuria. The present study examined the generation of a lead compound focusing on chemical structures with a sugar moiety, such as glycosides and sugar analogs, taking their physical properties into consideration. Compound 10, an exo-β-d-glucuronidase (GUSβ) inhibitor, was found to have a weak inhibitory activity against endo-β-d-glucuronidase HPSE1. A structure-activity relationship study using the X-ray co-crystal structure of 10 and HPSE1 resulted in 12a, which showed a more than 14-fold increase in HPSE1 inhibitory activity compared with that of 10. Compound 12a could be a novel lead compound for the development of a potent HPSE1 inhibitor.
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Affiliation(s)
- Yudai Imai
- Medicinal Chemistry Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan.
| | - Daisuke Wakasugi
- Medicinal Chemistry Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Ryo Suzuki
- Medicinal Chemistry Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Sota Kato
- Pharmacology Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Mami Sugisaki
- Pharmacology Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Masashi Mima
- Discovery Technologies Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Hiroh Miyagawa
- Discovery Technologies Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Mayumi Endo
- Discovery Technologies Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Natsuko Fujimoto
- Discovery Technologies Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Takuya Fukunaga
- Discovery Technologies Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Sayaka Kato
- Discovery Technologies Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Shoichi Kuroda
- Medicinal Chemistry Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Teisuke Takahashi
- Pharmacology Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
| | - Hiroyuki Kakinuma
- Medicinal Chemistry Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama 331-9530, Japan
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19
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Abid S, Maciuk A, Fishmeister R, Leblais V, Legssyer A, Mekhfi H, Ziyyat A, Aziz M, Lekchiri A, Bnouham M. Development of a Thin-Layer Chromatography-Enzymatic Test Combination Method for the Isolation of α-Glucosidase Inhibitors From Thymelaea hirsuta. J Chromatogr Sci 2022; 61:66-73. [PMID: 35679592 DOI: 10.1093/chromsci/bmac040] [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: 05/31/2021] [Indexed: 01/11/2023]
Abstract
A rapid, easy and simple method for the isolation and purification of α-glucosidase inhibitors of the ethyl acetate extract of Thymelaea hirsuta (EaTh) by a combination of thin layer chromatography (TLC) and enzymatic test has been developed. EaTh was demonstrated previously a potent α-glucosidase inhibitory effect. In this study, we developed a simple TLC-enzymatic test (TLC/EZ) combination to isolate α-glucosidase inhibitors present in EaTh.EaTh was extracted by Soxhlet from Thymelaea hirsuta (T. hirsuta). The EaTh was separated on a silica gel column and then on a TLC plate. After TLC separation, the TLC/EZ combination method was applied. α-glucosidase inhibitors were detected directly in the TLC plate using the glucose oxidase peroxidase method (GOD-POD). A good detection of active compounds was obtained in the TLC favoring the TLC/EZ method. Active compounds were then characterized using high performance liquid chromatography-mass spectrometry (HPLC-MS) analysis. The main α-glucosidase inhibitors present in EaTh have a molecular ion [M + H]+ at m/z = 543. This proposed method is suitable for a reliable isolation and purification of α-glucosidase inhibitors present in EaTh. It could be proposed as an interesting alternative of the classical method for the isolation and purification of α-glucosidase inhibitors in plant extracts.
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Affiliation(s)
- Sanae Abid
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
| | - Alexander Maciuk
- Laboratory of Pharmacognosy, Faculty of Pharmacy, University Paris-Saclay, 5 Rue Jean Baptiste Clément, 92290 Châtenay-Malabry, France
| | - Rodolphe Fishmeister
- Laboratory of Signaling and Cardiac Physiopathology, INSERM U-769, Faculty of Pharmacy, University Paris-Saclay, 5 Rue Jean Baptiste Clément, 92290 Châtenay-Malabry, France
| | - Véronique Leblais
- Laboratory of Signaling and Cardiac Physiopathology, INSERM U-769, Faculty of Pharmacy, University Paris-Saclay, 5 Rue Jean Baptiste Clément, 92290 Châtenay-Malabry, France
| | - Abdekhaleq Legssyer
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
| | - Hassane Mekhfi
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
| | - Abderrahim Ziyyat
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
| | - Mohamed Aziz
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
| | - Abdenbi Lekchiri
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
| | - Mohamed Bnouham
- Laboratory of Bio-resources, Biotechnologies, Ethnopharmacology and health, Department of Biology. Faculty of Sciences, University Mohamed Ist, Boulevard Mohamed IV, BP: 717, Oujda 60 000, Morocco
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20
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Wu Y, Liu C, Hu L. Fragment-Based Dynamic Combinatorial Chemistry for Identification of Selective α-Glucosidase Inhibitors. ACS Med Chem Lett 2022; 13:1791-1796. [PMID: 36385930 PMCID: PMC9661702 DOI: 10.1021/acsmedchemlett.2c00405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/13/2022] [Indexed: 11/28/2022] Open
Abstract
Efforts to combine advantages of fragment-based drug design (FBDD) and dynamic combinatorial chemistry (DCC) for the development of selective α-glucosidase inhibitors were described. Starting from 5 rationally designed fragments, two iterative dynamic combinatorial libraries (DCLs) comprising 29 acylhydrazone products were generated and screened using α-glucosidase and α-amylase as the templates. The optimal ligand identified showed substantial α-glucosidase inhibition with high selectivity over α-amylase as well as low cytotoxicity. Furthermore, inhibition type and detailed ligand/enzyme binding interactions were elucidated by the binding kinetic study and docking simulation, respectively.
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Affiliation(s)
- Yao Wu
- School of Pharmacy, Jiangsu
University, 301 Xuefu Road, 212013 Zhenjiang, China
| | - Changming Liu
- School of Pharmacy, Jiangsu
University, 301 Xuefu Road, 212013 Zhenjiang, China
| | - Lei Hu
- School of Pharmacy, Jiangsu
University, 301 Xuefu Road, 212013 Zhenjiang, China
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21
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Xiao PJ, Zeng JC, Lin P, Tang DB, Yuan E, Tu YG, Zhang QF, Chen JG, Peng DY, Yin ZP. Chalcone-1-Deoxynojirimycin Heterozygote Reduced the Blood Glucose Concentration and Alleviated the Adverse Symptoms and Intestinal Flora Disorder of Diabetes Mellitus Rats. Molecules 2022; 27:7583. [PMID: 36364410 PMCID: PMC9658082 DOI: 10.3390/molecules27217583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/30/2022] [Accepted: 11/02/2022] [Indexed: 02/04/2024] Open
Abstract
Chalcone-1-deoxynojirimycin heterozygote (DC-5), a novel compound which was designed and synthesized in our laboratory for diabetes treatment, showed an extremely strong in vitro inhibitory activity on α-glucosidase in our previous studies. In the current research, its potential in vivo anti-diabetic effects were further investigated by integration detection and the analysis of blood glucose concentration, blood biochemical parameters, tissue section and gut microbiota of the diabetic rats. The results indicated that oral administration of DC-5 significantly reduced the fasting blood glucose and postprandial blood glucose, both in diabetic and normal rats; meanwhile, it alleviated the adverse symptoms of elevated blood lipid level and lipid metabolism disorder in diabetic rats. Furthermore, DC-5 effectively decreased the organ coefficient and alleviated the pathological changes of the liver, kidney and small intestine of the diabetic rats at the same time. Moreover, the results of 16S rDNA gene sequencing analysis suggested that DC-5 significantly increased the ratio of Firmicutes to Bacteroidetes and improved the disorder of gut microbiota in diabetic rats. In conclusion, DC-5 displayed a good therapeutic effect on the diabetic rats, and therefore had a good application prospect in hypoglycemic drugs and foods.
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Affiliation(s)
- Pin-Jian Xiao
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jia-Cheng Zeng
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ping Lin
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Dao-Bang Tang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - En Yuan
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Yong-Gang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Qing-Feng Zhang
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ji-Guang Chen
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Da-Yong Peng
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zhong-Ping Yin
- Jiangxi Key Laboratory of Natural Products and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang 330045, China
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22
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Nursamsiar, Nur S, Febrina E, Asnawi A, Syafiie S. Synthesis and Inhibitory Activity of Curculigoside A Derivatives as Potential Anti-Diabetic Agents with β-Cell Apoptosis. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Liu R, Deng Y, Liu Y, Wang Z, Yu S, Nie Y, Zhu W, Zhou Z, Diao J. Combined Analysis of Transcriptome and Metabolome Reveals the Potential Mechanism of the Enantioselective Effect of Chiral Penthiopyrad on Tomato Fruit Flavor Quality. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:10872-10885. [PMID: 36006413 DOI: 10.1021/acs.jafc.2c03870] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study investigated the enantioselective effects of S-, R-, and rac-penthiopyrad (PEN) on the flavor quality of tomato fruit through the levels of sugars, acids, volatiles, and nutrients and explored the potential mechanism by combined analysis of the transcriptome and metabolome. The results revealed that the S-enantiomer increased the content of soluble sugars while decreasing the content of organic acids, thereby increasing the taste of tomato fruit. Furthermore, S-(+)-PEN promoted the accumulation of volatile compounds and nutrients (total phenols, flavonoids, and vitamin C). Transcriptome and metabolome data showed that the S-enantiomer improved fruit flavor and quality by influencing metabolites and genes in glycolysis, starch and sucrose metabolism, the citrate cycle, and amino acid biosynthesis pathways. However, R-(-)-PEN had a negative effect on tomato flavor. The effect of the racemate on fruit flavor quality was between a pair of enantiomers. The comprehensive data of PEN enantiomers will provide theoretical support for the application of PEN in tomatoes. Thus, developing enantiopure S-(+)-PEN products might be more conducive to the flavor and quality of the tomato fruit.
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Affiliation(s)
- Rui Liu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Yue Deng
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Yuping Liu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Zikang Wang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Simin Yu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Yufan Nie
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Wentao Zhu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Zhiqiang Zhou
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
| | - Jinling Diao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan west road 2, Beijing 100193, China
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24
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Hunt-Painter AA, Deeble BM, Stocker BL, Timmer MSM. An Amination-Cyclization Cascade Reaction for Iminosugar Synthesis Using Minimal Protecting Groups. ACS OMEGA 2022; 7:28756-28766. [PMID: 36033662 PMCID: PMC9404175 DOI: 10.1021/acsomega.1c01646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of a one-step amination-cyclization cascade reaction for the synthesis of N-substituted iminosugars from iodo-pentoses and hexoses is reported. This novel methodology allows for the stereoselective conversion of easily accessible iodo-aldoses and iodo-ketoses into iminosugars in a single step, in highly efficient yields (63-95%), and in aqueous media. Furthermore, the use of functionalized amines allows for the synthesis of N-functionalized iminosugars without additional steps. To illustrate this methodology, a number of biologically important iminosugars were prepared, including 1-deoxynojirimycin, (3S,4R,5S,6R)-azepane-3,4,5,6-tetraol, and N-functionalized 1-deoxymannojirimycins.
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25
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Vardé M, Marino C, Repetto E, Varela OJ. Enantioselective Synthesis of 2,3,4,5‐Tetra(hydroxyalkyl)pyrrolidines through 1,3‐Dipolar Cycloadditions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mariana Vardé
- Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales Organic chemistry ARGENTINA
| | - Carla Marino
- Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales Organic chemistry ARGENTINA
| | - Evangelina Repetto
- Universidad de Buenos Aires Facultad de Ciencias Exactas y Naturales Organic chemistry ARGENTINA
| | - Oscar Jose Varela
- Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Organic Chemistry Pabellon 2, Ciudad Universitaria 1428 Buenos Aires ARGENTINA
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26
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Dhameja M, Kumar H, Kurella S, Uma A, Gupta P. Flavone-1,2,3-triazole derivatives as potential α-glucosidase inhibitors: Synthesis, enzyme inhibition, kinetic analysis and molecular docking study. Bioorg Chem 2022; 127:106028. [PMID: 35868105 DOI: 10.1016/j.bioorg.2022.106028] [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: 04/21/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 12/15/2022]
Abstract
α-Glucosidase inhibitors are considered prime therapeutics in the management of type-2 diabetes and are preferred due to their localized action ushered by limited side effects. In this regard, nineteen new flavone-1,2,3-triazole derivatives have been designed and synthesized via utilizing an efficient click reaction protocol, and screened for the inhibition of the α-glucosidase enzyme. The reaction conditions were mild, good yielding and required easy work up. All the synthesized flavone-triazole derivatives were found more active against the yeast α-glucosidase with IC50 values ranging from 24.37 ± 0.55-168.44 ± 0.77 μ M as compared to standard inhibitor acarbose (IC50 = 844.81 ± 0.53 μM). The derivatives with 2,5‑dichloro 9k (IC50 = 24.37 ± 0.55 μM) and 4‑chloro 9d (IC50 = 24.77 ± 0.30 μM) substituent bearing an amide linkage were the most active. In the kinetic study of most active derivatives 9k and 9d, they were found to be mixed and uncompetitive inhibitors, respectively. In molecular docking studies, blind docking of the most active compounds was accomplished to find the interactions between the compounds and α-glucosidase that further confirms the mixed or uncompetitive nature of the inhibitors.
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Affiliation(s)
- Manoj Dhameja
- Department of Chemistry, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Hariom Kumar
- Department of Chemistry, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India
| | - Sirisha Kurella
- Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad, Telangana 500085, India
| | - Adepally Uma
- Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad, Telangana 500085, India
| | - Preeti Gupta
- Department of Chemistry, School of Physical & Decision Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, Uttar Pradesh 226025, India.
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27
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Fan J, Lv C, Li Z, Guo M, Yin Y, Wang H, Wang W, Sun S. α-Glucosidase inhibitory effect of an anthraquinonoid produced by Fusarium incarnatum GDZZ-G2. J Basic Microbiol 2022; 62:1360-1370. [PMID: 35736630 DOI: 10.1002/jobm.202200166] [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: 03/19/2022] [Revised: 06/04/2022] [Accepted: 06/11/2022] [Indexed: 11/07/2022]
Abstract
α-Glucosidase is the key enzyme on carbohydrate metabolism, and its bioactive inhibitors are supposed to be an effective therapeutic for type 2 diabetes mellitus. During our continuing study for discovering α-glucosidase inhibitors, a fungus GDZZ-G2 which is derived from a medicinal plant Callicarpa kwangtungensis Chun, exhibited significant inhibition on α-glucosidase. The strain was identified as Fusarium incarnatum by morphological and molecular methods. Further bioassay-guided fractionation result in six known secondary metabolites (1-6). All the compounds except 4 were isolated from F. incarnatum for the first time. Among them, an anthraquinonoid (S)-1,3,6-trihydroxy-7-(1-hydroxyethyl)anthracene-9,10-dione (compound 1) exhibited strong inhibitory effect against α-glucosidase (IC50 = 77.67 ± 0.67 μΜ), compared with acarbose (IC50 = 711.8 ± 5 μΜ). An enzyme kinetics analysis revealed that compound 1 was an uncompetitive inhibitor. Besides, docking simulations predicted that compound 1 inhibited α-glucosidase substrate complex by binding Gln322, Gly306, Thr307, and Ser329 through hydrogen-bond interactions. Our findings suggested that compound 1 can be considered a lead compound for further modifications and the development of a new effective drug candidate in the treatment of type 2 diabetes mellitus.
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Affiliation(s)
- Jiahe Fan
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Chaoyi Lv
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Zhizhou Li
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Mengru Guo
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yichen Yin
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Hui Wang
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Wei Wang
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
| | - Shiwei Sun
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao, China
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28
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Wahid S, Jahangir S, Ali Versiani M, Mohammed Khan K, Yik Sung Y, Iqbal J, Wadood A, Kanwal, Ur Rehman A, Arshia, Uzair M, Ali Khan I, Taha M, Perveen S. Biology-oriented drug synthesis of nitrofurazone derivatives: Their α-glucosidase inhibitory activity and molecular docking studies. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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29
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A Medicinal Halophyte Ipomoea pes-caprae (Linn.) R. Br.: A Review of Its Botany, Traditional Uses, Phytochemistry, and Bioactivity. Mar Drugs 2022; 20:md20050329. [PMID: 35621980 PMCID: PMC9144928 DOI: 10.3390/md20050329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 01/04/2023] Open
Abstract
Ipomoea pes-caprae (Linn.) R. Br. (Convolvulaceae) is a halophytic plant that favorably grows in tropical and subtropical countries in Asia, America, Africa, and Australia. Even though this plant is considered a pan-tropical plant, I. pes-caprae has been found to occur in inland habitats and coasts of wider areas, such as Spain, Anguilla, South Africa, and Marshall Island, either through a purposeful introduction, accidentally by dispersal, or by spreading due to climate change. The plant parts are used in traditional medicine for treating a wide range of diseases, such as inflammation, gastrointestinal disorders, pain, and hypertension. Previous phytochemical analyses of the plant have revealed pharmacologically active components, such as alkaloids, glycosides, steroids, terpenoids, and flavonoids. These phytoconstituents are responsible for the wide range of biological activities possessed by I. pes-caprae plant parts and extracts. This review arranges the previous reports on the botany, distribution, traditional uses, chemical constituents, and biological activities of I. pes-caprae to facilitate further studies that would lead to the discovery of novel bioactive natural products from this halophyte.
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30
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Synthesis and biological effects evaluation of benzoconduritols C and D from oxabenzonorbornadiene. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-021-02428-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Novel α-Amylase Inhibitor Hemi-Pyocyanin Produced by Microbial Conversion of Chitinous Discards. Mar Drugs 2022; 20:md20050283. [PMID: 35621934 PMCID: PMC9171587 DOI: 10.3390/md20050283] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 12/11/2022] Open
Abstract
α-Amylase inhibitors (aAIs) have been applied for the efficient management of type 2 diabetes. The aim of this study was to search for potential aAIs produced by microbial fermentation. Among various bacterial strains, Pseudomonas aeruginosa TUN03 was found to be a potential aAI-producing strain, and shrimp heads powder (SHP) was screened as the most suitable C/N source for fermentation. P. aeruginosa TUN03 exhibited the highest aAIs productivity (3100 U/mL) in the medium containing 1.5% SHP with an initial pH of 7–7.5, and fermentation was performed at 27.5 °C for two days. Further, aAI compounds were investigated for scaled-up production in a 14 L-bioreactor system. The results revealed a high yield (4200 U/mL) in a much shorter fermentation time (12 h) compared to fermentation in flasks. Bioactivity-guided purification resulted in the isolation of one major target compound, identified as hemi-pyocyanin (HPC) via gas chromatography-mass spectrometry and nuclear magnetic resonance. Its purity was analyzed by high-performance liquid chromatography. HPC demonstrated potent α-amylase inhibitory activity comparable to that of acarbose, a commercial antidiabetic drug. Notably, HPC was determined as a new aAI. The docking study indicated that HPC inhibits α-amylase by binding to amino acid Arg421 at the biding site on enzyme α-amylase with good binding energy (−9.3 kcal/mol) and creating two linkages of H-acceptors.
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32
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Snizhko AD, Kyrychenko AV, Gladkov ES. Synthesis of Novel Derivatives of 5,6,7,8-Tetrahydroquinazolines Using α-Aminoamidines and In Silico Screening of Their Biological Activity. Int J Mol Sci 2022; 23:ijms23073781. [PMID: 35409144 PMCID: PMC8999073 DOI: 10.3390/ijms23073781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 02/05/2023] Open
Abstract
α-Aminoamidines are promising reagents for the synthesis of a diverse family of pyrimidine ring derivatives. Here, we demonstrate the use of α-aminoamidines for the synthesis of a new series of 5,6,7,8-tetrahydroquinazolines by their reaction with bis-benzylidene cyclohexanones. The reaction occurs in mild conditions and is characterized by excellent yields. It has easy workup, as compared to the existing methods of tetrahydroquinazoline preparation. Newly synthesized derivatives of 5,6,7,8-tetrahydroquinazoline bear protecting groups at the C2-tert-butyl moiety of a quinazoline ring, which can be easily cleaved, opening up further opportunities for their functionalization. Moreover, molecular docking studies indicate that the synthesized compounds reveal high binding affinity toward some essential enzymes of Mycobacterial tuberculosis, such as dihydrofolate reductase (DHFR), pantothenate kinase (MtPanK), and FAD-containing oxidoreductase DprE1 (MtDprE1), so that they may be promising candidates for the molecular design and the development of new antitubercular agents against multidrug-resistant strains of the Tubercle bacillus. Finally, the high inhibition activity of the synthesized compounds was also predicted against β-glucosidase, suggesting a novel tetrahydroquinazoline scaffold for the treatment of diabetes.
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Affiliation(s)
- Arsenii D. Snizhko
- Institute of Chemistry and School of Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine; (A.D.S.); (A.V.K.)
| | - Alexander V. Kyrychenko
- Institute of Chemistry and School of Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine; (A.D.S.); (A.V.K.)
| | - Eugene S. Gladkov
- Institute of Chemistry and School of Chemistry, V. N. Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine; (A.D.S.); (A.V.K.)
- State Scientific Institution “Institute for Single Crystals”, National Academy of Sciences of Ukraine, 60 Nauky Ave, 61072 Kharkiv, Ukraine
- Correspondence:
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33
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Ortega R, Valdés M, Alarcón-Aguilar FJ, Fortis-Barrera Á, Barbosa E, Velazquez C, Calzada F. Antihyperglycemic Effects of Salvia polystachya Cav. and Its Terpenoids: α-Glucosidase and SGLT1 Inhibitors. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11050575. [PMID: 35270046 PMCID: PMC8912538 DOI: 10.3390/plants11050575] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 06/02/2023]
Abstract
The antihyperglycemic activity of ethanolic extract from Salvia polystachya (EESpS) and its products was evaluated using in vivo, ex vivo and in silico assays; additionally, an acute toxicity assay was evaluated. EESpS was classified as a nontoxic class 5 drug. EESpS, ethyl acetate fraction (EtOAcFr), secondary-6-fraction (SeFr6), ursolic acid (UA), and oleanolic acid (OA) reduced the hyperglycemia in DM2 mice. α-glucosidase inhibition was evaluated with oral sucrose and starch tolerance tests (OSuTT and OStTT), an intestinal sucrose hydrolysis (ISH) assay and molecular docking studies using acarbose as control. SGLT1 inhibition was evaluated with oral glucose and galactose tolerance tests (OGTT and OGaTT), an intestinal glucose absorption (IGA) assay and molecular docking studies using canagliflozin as the control. During the carbohydrate tolerance tests, all the treatments reduced the postprandial peak, similar to the control drugs. During the ISH, IC50 values of 739.9 and 726.3 µM for UA and OA, respectively, were calculated. During the IGA, IC50 values of 966.6 and 849.3 for UA, OA respectively, were calculated. Finally, during the molecular docking studies, UA and OA showed ∆G values of -6.41 and -5.48 kcal/mol-1, respectively, on α-glucosidase enzymes. During SGLT1, UA and OA showed ∆G values of -10.55 and -9.65, respectively.
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Affiliation(s)
- Rocio Ortega
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, UAM-I, Mexico City CP 09340, Mexico
- Av. San Rafael Atlixco 186, Leyes de Reforma 1ra Sección, Iztapalapa, Mexico City CP 09340, Mexico
- Unidad de Investigación Médica en Farmacología, UMAE Hospital de Especialidades, 2° Piso CORSE Centro Médico Nacional Siglo XXI, IMSS, Av. Cuauhtémoc 330, Col. Doctores, Mexico City CP 06725, Mexico
| | - Miguel Valdés
- Unidad de Investigación Médica en Farmacología, UMAE Hospital de Especialidades, 2° Piso CORSE Centro Médico Nacional Siglo XXI, IMSS, Av. Cuauhtémoc 330, Col. Doctores, Mexico City CP 06725, Mexico
| | - Francisco J. Alarcón-Aguilar
- Laboratorio de Farmacología, Departamento de Ciencias de la Salud, División de CBS, Universidad Autónoma Metropolitana-Iztapalapa, UAM-I, Av. San Rafael Atlixco 186, Leyes de Reforma 1ra Sección, Mexico City CP 09340, Mexico; (F.J.A.-A.); (Á.F.-B.)
| | - Ángeles Fortis-Barrera
- Laboratorio de Farmacología, Departamento de Ciencias de la Salud, División de CBS, Universidad Autónoma Metropolitana-Iztapalapa, UAM-I, Av. San Rafael Atlixco 186, Leyes de Reforma 1ra Sección, Mexico City CP 09340, Mexico; (F.J.A.-A.); (Á.F.-B.)
| | - Elizabeth Barbosa
- Escuela Superior de Medicina, Instituto Politécnico Nacional, Salvador Díaz Mirón esq. Plan de San Luis S/N, Miguel Hidalgo, Casco de Santo Tomas, Mexico City CP 11340, Mexico;
| | - Claudia Velazquez
- Área Académica de Farmacia, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Km 4.5, Carretera Pachuca-Tulancingo, Unidad Universitaria, Pachuca CP 42076, Mexico;
| | - Fernando Calzada
- Unidad de Investigación Médica en Farmacología, UMAE Hospital de Especialidades, 2° Piso CORSE Centro Médico Nacional Siglo XXI, IMSS, Av. Cuauhtémoc 330, Col. Doctores, Mexico City CP 06725, Mexico
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Fucoidan Regulates Starch Digestion: In Vitro and Mechanistic Study. Foods 2022; 11:foods11030427. [PMID: 35159577 PMCID: PMC8834454 DOI: 10.3390/foods11030427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/19/2022] [Accepted: 01/26/2022] [Indexed: 02/06/2023] Open
Abstract
Bread is a high glycemic index (GI) food with high amounts of readily digestible carbohydrates. Fucoidan refers to a group of sulfated polysaccharides isolated from brown seaweed that has been gaining traction for its many functional properties, including its ability to inhibit starch hydrolases. In this study, fucoidan was added into bread to lower the glycemic index of bread. Fucoidan fortification at 3.0% reduced the starch digestion rate of baked bread by 21.5% as compared to control baked bread. This translated to a 17.7% reduction in the predicted GI (pGI) with 3.0% of fucoidan. Fucoidan was retained in the bread after baking. Although the in vitro bioavailability of fucoidan was negligible, the in vitro bioaccessibility of fucoidan was high, at 77.1–79.8%. This suggested that although fucoidan may not be absorbed via passive diffusion, there is potential for the fucoidan to be absorbed via other modes of absorption. Thus, there is a potential for the use of fucoidan as a functional ingredient in bread to reduce the glycemic potential of bread.
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35
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Addanki HR, Vallabhaneni MR, Chennamsett S, Pullagura P, Sagurthi SR, Pasupuleti VR. An in silico ADMET, molecular docking study and microwave-assisted synthesis of new phosphorylated derivatives of thiazolidinedione as potential anti-diabetic agents. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2021.2024574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hanumantha Rao Addanki
- Department of Chemistry, (recognized as Research Centre by A. N. University), Bapatla Engineering College (Autonomous), Bapatla, India
| | - Madhava Rao Vallabhaneni
- Department of Chemistry, (recognized as Research Centre by A. N. University), Bapatla Engineering College (Autonomous), Bapatla, India
| | - Subramanyam Chennamsett
- Department of Chemistry, (recognized as Research Centre by A. N. University), Bapatla Engineering College (Autonomous), Bapatla, India
| | - Priyadarshini Pullagura
- Department of Chemistry, (recognized as Research Centre by A. N. University), Bapatla Engineering College (Autonomous), Bapatla, India
| | - Someswara Rao Sagurthi
- Department of Genetics (Biotechnology), Drug Design & Molecular Medicine Lab, Osmania University, Hyderabad, Telangana, India
| | - Visweswara Rao Pasupuleti
- Department of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
- Department of Biochemistry, Faculty of Medicine and Health Sciences, Abdurrab University, Pekanbaru, Riau, Indonesia
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36
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Agarwal S, Singh V, Chauhan K. Antidiabetic potential of seaweed and their bioactive compounds: a review of developments in last decade. Crit Rev Food Sci Nutr 2022; 63:5739-5770. [PMID: 35048763 DOI: 10.1080/10408398.2021.2024130] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Diabetes Mellitus is a public health problem worldwide due to high morbidity and mortality rate associated with it. Diabetes can be managed by synthetic hypoglycemic drugs, although their persistent uses have several side effects. Hence, there is a paradigm shift toward the use of natural products having antidiabetic potential. Seaweeds, large marine benthic algae, are an affluent source of various bioactive compounds, including phytochemicals and antioxidants thus exhibiting various health promoting properties. Seaweed extracts and its bioactive compounds have antidiabetic potential as they inhibit carbohydrate hydrolyzing enzymes in vitro and exhibit blood glucose lowering effect in random and post prandial blood glucose tests in vivo. In addition, they have been associated with reduced weight gain in animals probably by decreasing mRNA expression of pro-inflammatory cytokines with concomitant increase in mRNA expression levels of anti-inflammatory cytokines. Their beneficial effect has been seen in serum and hepatic lipid profile and antioxidant enzymes indicating the protective role of seaweeds against free radicals mediated oxidative stress induced hyperglycemia and associated hyperlipidemia. However, the detailed and in-depth studies of seaweeds as whole, their bioactive isolates and their extracts need to be explored further for their health benefits and wide application in food, nutraceutical and pharmaceutical industries.
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Affiliation(s)
- Surbhi Agarwal
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Sonipet, India
| | - Vikas Singh
- Department of Food Business Management and Entrepreneurship Development, National Institute of Food Technology Entrepreneurship and Management, Kundli, India
| | - Komal Chauhan
- Department of Food Science and Technology, National Institute of Food Technology Entrepreneurship and Management, Sonipet, India
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Unexpected dihydropyridinium derivatives using a multicomponent reaction containing unprotected amino acids. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Femi-Olabisi FJ, Ishola AA, Faokunla O, Agboola AO, Babalola BA. Evaluation of the inhibitory potentials of selected compounds from Costus spicatus (Jacq.) rhizome towards enzymes associated with insulin resistance in polycystic ovarian syndrome: an in silico study. JOURNAL OF GENETIC ENGINEERING AND BIOTECHNOLOGY 2021; 19:176. [PMID: 34812979 PMCID: PMC8611123 DOI: 10.1186/s43141-021-00276-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/06/2021] [Indexed: 11/10/2022]
Abstract
Background Polycystic ovary syndrome (PCOS) is a chronic endocrine disorder prevalent in premenopausal women and is characterized by a range of physiological and biochemical abnormalities which may include reproductive, endocrine, and metabolic alterations such as insulin resistance. Insulin resistance is the hallmark of PCOS as it predisposes the affected subjects to a higher risk of impaired glucose tolerance and type 2 diabetes mellitus (T2DM). In this study, the inhibitory activities of phytosterols and saccharides from aqueous extract of Costus spicatus rhizome were investigated against phosphoenolpyruvate carboxykinase (PEPCK), α-amylase, β-glucosidase, and fructose 1,6-biphosphatase (FBPase) in silico as potential novel therapeutic targets for T2DM-associated-PCOS. Phytochemical constituents of the plant were determined using gas chromatography-mass spectrophotometry (GC-MS), while molecular docking of the compounds with PEPCK, α-amylase, β-glucosidase, and FBPase was conducted using Vina. Thereafter, the binding modes were determined using Discovery Studio Visualizer, 2020. Results GCMS analysis of an aqueous extract of Costus spicatus rhizome revealed the presence of three compounds with a higher binding affinity for all enzymes studied compared to metformin. The compounds also interacted with key amino acid residues crucial to the enzyme’s activities. This study identified Lyxo-d-manno-nononic-1,4-lactone as potential multi-target inhibitors of PEPCK, α-amylase, β-glucosidase, and FBPase with reasonable pharmacokinetic properties and no significant toxicity. Conclusion These compounds can be explored as potential therapeutic agents for the management of insulin resistance in PCOS, subject to further experimental validation.
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Affiliation(s)
| | - Ahmed Adebayo Ishola
- Central Research Laboratory, 132B University road, Tanke, Ilorin, Kwara State, Nigeria.
| | - Opeyemi Faokunla
- Department of Biochemistry, Federal University Lokoja, Lokoja, Kogi State, Nigeria
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Oh H, Ryou B, Park J, Kim M, Choi JH, Park CM. Synthesis of Bicyclic N-Heterocycles via Photoredox Cycloaddition of Imino-Alkynes and Imino-Alkenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03919] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hyeonji Oh
- Department of Chemistry, Ulsan National Institute of Science & Technology (UNIST), Ulsan 44919, Korea
| | - Bokyeong Ryou
- Department of Chemistry, Ulsan National Institute of Science & Technology (UNIST), Ulsan 44919, Korea
| | - Jinhwi Park
- Department of Chemistry, Ulsan National Institute of Science & Technology (UNIST), Ulsan 44919, Korea
| | - Minju Kim
- Department of Chemistry, Ulsan National Institute of Science & Technology (UNIST), Ulsan 44919, Korea
| | - Jun-Ho Choi
- Department of Chemistry, Ulsan National Institute of Science & Technology (UNIST), Ulsan 44919, Korea
| | - Cheol-Min Park
- Department of Chemistry, Ulsan National Institute of Science & Technology (UNIST), Ulsan 44919, Korea
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40
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Jain N, Tamura K, Déjean G, Van Petegem F, Brumer H. Orthogonal Active-Site Labels for Mixed-Linkage endo-β-Glucanases. ACS Chem Biol 2021; 16:1968-1984. [PMID: 33988963 DOI: 10.1021/acschembio.1c00063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Small molecule irreversible inhibitors are valuable tools for determining catalytically important active-site residues and revealing key details of the specificity, structure, and function of glycoside hydrolases (GHs). β-glucans that contain backbone β(1,3) linkages are widespread in nature, e.g., mixed-linkage β(1,3)/β(1,4)-glucans in the cell walls of higher plants and β(1,3)glucans in yeasts and algae. Commensurate with this ubiquity, a large diversity of mixed-linkage endoglucanases (MLGases, EC 3.2.1.73) and endo-β(1,3)-glucanases (laminarinases, EC 3.2.1.39 and EC 3.2.1.6) have evolved to specifically hydrolyze these polysaccharides, respectively, in environmental niches including the human gut. To facilitate biochemical and structural analysis of these GHs, with a focus on MLGases, we present here the facile chemo-enzymatic synthesis of a library of active-site-directed enzyme inhibitors based on mixed-linkage oligosaccharide scaffolds and N-bromoacetylglycosylamine or 2-fluoro-2-deoxyglycoside warheads. The effectiveness and irreversibility of these inhibitors were tested with exemplar MLGases and an endo-β(1,3)-glucanase. Notably, determination of inhibitor-bound crystal structures of a human-gut microbial MLGase from Glycoside Hydrolase Family 16 revealed the orthogonal labeling of the nucleophile and catalytic acid/base residues with homologous 2-fluoro-2-deoxyglycoside and N-bromoacetylglycosylamine inhibitors, respectively. We anticipate that the selectivity of these inhibitors will continue to enable the structural and mechanistic analyses of β-glucanases from diverse sources and protein families.
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Affiliation(s)
- Namrata Jain
- Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Kazune Tamura
- Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Guillaume Déjean
- Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Filip Van Petegem
- Department of Biochemistry and Molecular Biology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3, Canada
| | - Harry Brumer
- Michael Smith Laboratories, University of British Columbia, 2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
- Department of Biochemistry and Molecular Biology, University of British Columbia, 2350 Health Sciences Mall, Vancouver, British Columbia V6T 1Z3, Canada
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Zhu XL, Liang XR, Luo YQ, Wang L, Shi XX. Efficient stereoselective synthesis of 5a-carba-α-L-mannopyranose starting from naturally abundant (−)-shikimic acid. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1975300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xin-Liang Zhu
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, P. R. China
| | - Xian-Ru Liang
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, P. R. China
| | - Yong-Qiang Luo
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, P. R. China
| | - Lei Wang
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, P. R. China
| | - Xiao-Xin Shi
- Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education, School of Pharmacy, East China University of Science and Technology, Shanghai, P. R. China
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Dong Q, Hu N, Yue H, Wang H, Ku J. Identification of α-glucosidase inhibitors from the bran of Chenopodium quinoa Willd. by surface plasmon resonance coupled with ultra-performance liquid chromatography and quadrupole-time-of-flight-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1181:122919. [PMID: 34500401 DOI: 10.1016/j.jchromb.2021.122919] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 07/26/2021] [Accepted: 08/29/2021] [Indexed: 01/17/2023]
Abstract
Extracts from the bran of Chenopodium quinoa Willd. (QBE) were reported to be active in inhibiting α-glycosidase, a promising target for treatment of diabetes mellitus. However, the constituents responsible for the α-glucosidase-inhibiting activity of QBE have not been fully characterized. The present study aimed to set up a method for rapid identification of glycosidase inhibiting compounds from the quinoa bran. With surface plasmon resonance (SPR) coupled with liquid chromatography-mass spectrometry (LC-MS), we identified eight flavonoids and ten triterpenoid saponins that may bind to the α-glycosidase. Analysis of the interaction kinetics by molecular docking supported their α-glucosidase-inhibiting activity and revealed the potential mechanisms for the inhibitory effects. In summary, this study established a SPR and LC-MS-based method for rapid in vitro screening of α-glucosidase inhibitors and suggested the quinoa bran a potential natural source of α-glucosidase inhibitors.
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Affiliation(s)
- Qi Dong
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Na Hu
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China
| | - Honglun Wang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, China.
| | - Jinliang Ku
- Beijing Tongrentang Health Pharmaceutical (Qinghai) Co. Ltd, Qinghai 817000, China
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Green synthesis of 1,5-dideoxy-1,5-imino-ribitol and 1,5-dideoxy-1,5-imino-DL-arabinitol from natural D-sugars over Au/Al 2O 3 and SO 42-/Al 2O 3 catalysts. Sci Rep 2021; 11:16928. [PMID: 34413372 PMCID: PMC8376872 DOI: 10.1038/s41598-021-96231-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 08/06/2021] [Indexed: 11/11/2022] Open
Abstract
A green synthetic route for the synthesis of some potential enzyme active hydroxypiperidine iminosugars including 1,5-dideoxy-1,5-imino-ribitol and 1,5-dideoxy-1,5-imino-dl-arabinitol, starting from commercially available d-ribose and d-lyxose was tested out. Heterogeneous catalysts including Au/Al2O3, SO42−/Al2O3 as well as environmentally friendly reagents were employed into several critical reaction of the route. The synthetic route resulted in good overall yields of 1,5-dideoxy-1,5-imino-ribitol of 54%, 1,5-dideoxy-1,5-imino-d-arabinitol of 48% and 1,5-dideoxy-1,5-imino-l-arabinitol of 46%. The Au/Al2O3 catalyst can be easily recovered from the reaction mixture and reused with no loss of activity.
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Tian T, Chen GY, Zhang H, Yang FQ. Personal Glucose Meter for α-Glucosidase Inhibitor Screening Based on the Hydrolysis of Maltose. Molecules 2021; 26:molecules26154638. [PMID: 34361791 PMCID: PMC8348101 DOI: 10.3390/molecules26154638] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 01/14/2023] Open
Abstract
As a key enzyme regulating postprandial blood glucose, α-Glucosidase is considered to be an effective target for the treatment of diabetes mellitus. In this study, a simple, rapid, and effective method for enzyme inhibitors screening assay was established based on α-glucosidase catalyzes reactions in a personal glucose meter (PGM). α-glucosidase catalyzes the hydrolysis of maltose to produce glucose, which triggers the reduction of ferricyanide (K3[Fe(CN)6]) to ferrocyanide (K4[Fe(CN)6]) and generates the PGM detectable signals. When the α-glucosidase inhibitor (such as acarbose) is added, the yield of glucose and the readout of PGM decreased accordingly. This method can achieve the direct determination of α-glucosidase activity by the PGM as simple as the blood glucose tests. Under the optimal experimental conditions, the developed method was applied to evaluate the inhibitory activity of thirty-four small-molecule compounds and eighteen medicinal plants extracts on α-glucosidase. The results exhibit that lithospermic acid (52.5 ± 3.0%) and protocatechualdehyde (36.8 ± 2.8%) have higher inhibitory activity than that of positive control acarbose (31.5 ± 2.5%) at the same final concentration of 5.0 mM. Besides, the lemon extract has a good inhibitory effect on α-glucosidase with a percentage of inhibition of 43.3 ± 3.5%. Finally, the binding sites and modes of four active small-molecule compounds to α-glucosidase were investigated by molecular docking analysis. These results indicate that the PGM method is feasible to screening inhibitors from natural products with simple and rapid operations.
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Affiliation(s)
- Tao Tian
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China; (T.T.); (G.-Y.C.)
| | - Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China; (T.T.); (G.-Y.C.)
| | - Hao Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China; (T.T.); (G.-Y.C.)
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
- Correspondence: (H.Z.); (F.-Q.Y.); Tel.: +86-138-9621-7134 (H.Z.); +86-136-1765-0637 (F.-Q.Y.)
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China; (T.T.); (G.-Y.C.)
- Correspondence: (H.Z.); (F.-Q.Y.); Tel.: +86-138-9621-7134 (H.Z.); +86-136-1765-0637 (F.-Q.Y.)
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Inhibitory Activity and Mechanism Investigation of Hypericin as a Novel α-Glucosidase Inhibitor. Molecules 2021; 26:molecules26154566. [PMID: 34361714 PMCID: PMC8348433 DOI: 10.3390/molecules26154566] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/20/2021] [Accepted: 07/24/2021] [Indexed: 12/15/2022] Open
Abstract
α-glucosidase is a major enzyme that is involved in starch digestion and type 2 diabetes mellitus. In this study, the inhibition of hypericin by α-glucosidase and its mechanism were firstly investigated using enzyme kinetics analysis, real-time interaction analysis between hypericin and α-glucosidase by surface plasmon resonance (SPR), and molecular docking simulation. The results showed that hypericin was a high potential reversible and competitive α-glucosidase inhibitor, with a maximum half inhibitory concentration (IC50) of 4.66 ± 0.27 mg/L. The binding affinities of hypericin with α-glucosidase were assessed using an SPR detection system, which indicated that these were strong and fast, with balances dissociation constant (KD) values of 6.56 × 10−5 M and exhibited a slow dissociation reaction. Analysis by molecular docking further revealed that hydrophobic forces are generated by interactions between hypericin and amino acid residues Arg-315 and Tyr-316. In addition, hydrogen bonding occurred between hypericin and α-glucosidase amino acid residues Lys-156, Ser-157, Gly-160, Ser-240, His-280, Asp-242, and Asp-307. The structure and micro-environment of α-glucosidase enzymes were altered, which led to a decrease in α-glucosidase activity. This research identified that hypericin, an anthracene ketone compound, could be a novel α-glucosidase inhibitor and further applied to the development of potential anti-diabetic drugs.
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Glucosidase Inhibitors Screening in Microalgae and Cyanobacteria Isolated from the Amazon and Proteomic Analysis of Inhibitor Producing Synechococcus sp. GFB01. Microorganisms 2021; 9:microorganisms9081593. [PMID: 34442672 PMCID: PMC8402191 DOI: 10.3390/microorganisms9081593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 11/17/2022] Open
Abstract
Microalgae and cyanobacteria are good sources for prospecting metabolites of biotechnological interest, including glucosidase inhibitors. These inhibitors act on enzymes related to various biochemical processes; they are involved in metabolic diseases, such as diabetes and Gaucher disease, tumors and viral infections, thus, they are interesting hubs for the development of new drugs and therapies. In this work, the screening of 63 environmental samples collected in the Brazilian Amazon found activity against β-glucosidase, of at least 60 min, in 13.85% of the tested extracts, with Synechococcus sp. GFB01 showing inhibitory activity of 90.2% for α-glucosidase and 96.9% against β-glucosidase. It was found that the nutritional limitation due to a reduction in the concentration of sodium nitrate, despite not being sufficient to cause changes in cell growth and photosynthetic apparatus, resulted in reduced production of α and β-glucosidase inhibitors and differential protein expression. The proteomic analysis of cyanobacteria isolated from the Amazon is unprecedented, with this being the first work to evaluate the protein expression of Synechococcus sp. GFB01 subjected to nutritional stress. This evaluation helps to better understand the metabolic responses of this organism, especially related to the production of inhibitors, adding knowledge to the industrial potential of these cyanobacterial compounds.
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Nemzer B, Kalita D, Abshiru N. Quantification of Major Bioactive Constituents, Antioxidant Activity, and Enzyme Inhibitory Effects of Whole Coffee Cherries ( Coffea arabica) and Their Extracts. Molecules 2021; 26:molecules26144306. [PMID: 34299581 PMCID: PMC8305692 DOI: 10.3390/molecules26144306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022] Open
Abstract
Coffee cherry is a rich source of chlorogenic acids (CGAs) and caffeine. In this study we examined the potential antioxidant activity and enzyme inhibitory effects of whole coffee cherries (WCC) and their two extracts on α-amylase, α-glucosidase and acetylcholinesterase (AChE) activities, which are targets for the control of diabetes and Alzheimer’s diseases. Whole coffee cherry extract 40% (WCCE1) is rich in chlorogenic acid compounds, consisting of a minimum of 40% major isomers, namely 3-caffeoylquinic acids, 4-caffeoylquinic acids, 5-caffeoylquinic acids, 3,4-dicaffeoylquinic acid, 3,5-dicaffeoylquinic acid, 4,5-dicaffeoylquinic acid, 4-feruloylquinc acid, and 5-feruloylquinc acid. Whole coffee cherry extract 70% (WCCE2) is rich in caffeine, with a minimum of 70%. WCCE1 inhibited the activities of digestive enzymes α-amylase and α-glucosidase, and WCCE2 inhibited acetylcholinesterase activities with their IC50 values of 1.74, 2.42, and 0.09 mg/mL, respectively. Multiple antioxidant assays—including DPPH, ABTS, FRAP, ORAC, HORAC, NORAC, and SORAC—demonstrated that WCCE1 has strong antioxidant activity.
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Affiliation(s)
- Boris Nemzer
- VDF FutureCeuticals, Inc., Momence, IL 60954, USA; (D.K.); (N.A.)
- University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Correspondence:
| | - Diganta Kalita
- VDF FutureCeuticals, Inc., Momence, IL 60954, USA; (D.K.); (N.A.)
| | - Nebiyu Abshiru
- VDF FutureCeuticals, Inc., Momence, IL 60954, USA; (D.K.); (N.A.)
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The Lysozyme Inhibitor Thionine Acetate Is Also an Inhibitor of the Soluble Lytic Transglycosylase Slt35 from Escherichia coli. Molecules 2021; 26:molecules26144189. [PMID: 34299465 PMCID: PMC8307938 DOI: 10.3390/molecules26144189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 11/18/2022] Open
Abstract
Lytic transglycosylases such as Slt35 from E. coli are enzymes involved in bacterial cell wall remodelling and recycling, which represent potential targets for novel antibacterial agents. Here, we investigated a series of known glycosidase inhibitors for their ability to inhibit Slt35. While glycosidase inhibitors such as 1-deoxynojirimycin, castanospermine, thiamet G and miglitol had no effect, the phenothiazinium dye thionine acetate was found to be a weak inhibitor. IC50 values and binding constants for thionine acetate were similar for Slt35 and the hen egg white lysozyme. Molecular docking simulations suggest that thionine binds to the active site of both Slt35 and lysozyme, although it does not make direct interactions with the side-chain of the catalytic Asp and Glu residues as might be expected based on other inhibitors. Thionine acetate also increased the potency of the beta-lactam antibiotic ampicillin against a laboratory strain of E. coli.
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Kirubakaran S, Sureshkumar D, Chandrasekaran S. Tetrathiomolybdate and Tetraselenotungstate as Sulfur/Selenium Transfer Reagents: Applications in the Synthesis of New Thio/Seleno Sugars. CHEM REC 2021; 21:3076-3086. [PMID: 34145726 DOI: 10.1002/tcr.202100097] [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: 03/27/2021] [Revised: 05/01/2021] [Accepted: 05/31/2021] [Indexed: 11/11/2022]
Abstract
Sulfur and selenium containing sugars have gained prominence in the last two decades because of their importance in several biological applications. These type of carbohydrate scaffolds are also challenging targets for synthesis. In this personal note, we have summarised the results of our investigation over the last 20 years on the use of two reagents, benzyltriethylammonium tetrathiomolybdate and tetraethylammonium tetraselenotungstate, in efficient transfer of sulfur and selenium respectively to the synthesis of a number of carbohydrate derivatives.
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Affiliation(s)
- Sivapriya Kirubakaran
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, 382355, Gujarat, India
| | - Devarajulu Sureshkumar
- Department of Chemistry, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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50
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Kong Y, Paray BA, Al-Sadoon MK, Fahad Albeshr M. Novel green synthesis, chemical characterization, toxicity, colorectal carcinoma, antioxidant, anti-diabetic, and anticholinergic properties of silver nanoparticles: A chemopharmacological study. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103193] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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