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Wang Y, Ai Q, Gu M, Guan H, Yang W, Zhang M, Mao J, Lin Z, Liu Q, Liu J. Comprehensive overview of different medicinal parts from Morus alba L.: chemical compositions and pharmacological activities. Front Pharmacol 2024; 15:1364948. [PMID: 38694910 PMCID: PMC11061381 DOI: 10.3389/fphar.2024.1364948] [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: 01/19/2024] [Accepted: 03/25/2024] [Indexed: 05/04/2024] Open
Abstract
Morus alba L., a common traditional Chinese medicine (TCM) with a centuries-old medicinal history, owned various medicinal parts like Mori folium, Mori ramulus, Mori cortex and Mori fructus. Different medical parts exhibit distinct modern pharmacological effects. Mori folium exhibited analgesic, anti-inflammatory, hypoglycemic action and lipid-regulation effects. Mori ramulus owned anti-bacterial, anti-asthmatic and diuretic activities. Mori cortex showed counteraction action of pain, inflammatory, bacterial, and platelet aggregation. Mori fructus could decompose fat, lower blood lipids and prevent vascular sclerosis. The main chemical components in Morus alba L. covered flavonoids, phenolic compounds, alkaloids, and amino acids. This article comprehensively analyzed the recent literature related to chemical components and pharmacological actions of M. alba L., summarizing 198 of ingredients and described the modern activities of different extracts and the bioactive constituents in the four parts from M. alba L. These results fully demonstrated the medicinal value of M. alba L., provided valuable references for further comprehensive development, and layed the foundation for the utilization of M. alba L.
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Affiliation(s)
- Yumei Wang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Qing Ai
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
- School of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Meiling Gu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
- School of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Hong Guan
- Office of Academic Research, Qiqihar Medical University, Qiqihar, China
| | - Wenqin Yang
- Office of Academic Research, Qiqihar Medical University, Qiqihar, China
| | - Meng Zhang
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
- School of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Jialin Mao
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Zhao Lin
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Qi Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Jicheng Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
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2
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Mohan MS, Salim SA, Ranganathan S, Parasuraman P, Anju VT, Ampasala DR, Dyavaiah M, Lee JK, Busi S. Attenuation of Las/Rhl quorum sensing regulated virulence and biofilm formation in Pseudomonas aeruginosa PAO1 by Artocarpesin. Microb Pathog 2024; 189:106609. [PMID: 38452830 DOI: 10.1016/j.micpath.2024.106609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/23/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
The emergence of multidrug resistance and increased pathogenicity in microorganisms is conferred by the presence of highly synchronized cell density dependent signalling pathway known as quorum sensing (QS). The QS hierarchy is accountable for the secretion of virulence phenotypes, biofilm formation and drug resistance. Hence, targeting the QS phenomenon could be a promising strategy to counteract the bacterial virulence and drug resistance. In the present study, artocarpesin (ACN), a 6-prenylated flavone was investigated for its capability to quench the synthesis of QS regulated virulence factors. From the results, ACN showed significant inhibition of secreted virulence phenotypes such as pyocyanin (80%), rhamnolipid (79%), protease (69%), elastase (84%), alginate (88%) and biofilm formation (88%) in opportunistic pathogen, Pseudomonas aeruginosa PAO1. Further, microscopic observation of biofilm confirmed a significant reduction in biofilm matrix when P. aeruginosa PAO1 was supplemented with ACN at its sub-MIC concentration. Quantitative gene expression studies showed the promising aspects of ACN in down regulation of several QS regulatory genes associated with production of virulence phenotypes. Upon treatment with sub-MIC of ACN, the bacterial colonization in the gut of Caenorhabditis elegans was potentially reduced and the survival rate was greatly improved. The promising QS inhibition activities were further validated through in silico studies, which put an insight into the mechanism of QS inhibition. Thus, ACN could be considered as possible drug candidate targeting chronic microbial infections.
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Affiliation(s)
- Mahima S Mohan
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Simi Asma Salim
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Sampathkumar Ranganathan
- Department of Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry, 605014, India; Department of Chemical Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | | | - V T Anju
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Dinakara Rao Ampasala
- Department of Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Madhu Dyavaiah
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Siddhardha Busi
- Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India.
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3
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Langeder J, Koch M, Schmietendorf H, Tahir A, Grienke U, Rollinger JM, Schmidtke M. Correlation of bioactive marker compounds of an orally applied Morus alba root bark extract with toxicity and efficacy in BALB/c mice. Front Pharmacol 2023; 14:1193118. [PMID: 38143489 PMCID: PMC10739329 DOI: 10.3389/fphar.2023.1193118] [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: 03/24/2023] [Accepted: 11/27/2023] [Indexed: 12/26/2023] Open
Abstract
Introduction: In traditional Chinese medicine, the root bark of Morus alba L. is used to treat respiratory infections. Recently, anti-inflammatory and multiple anti-infective activities (against influenza viruses, corona virus 2, S. aureus, and S. pneumoniae) were shown in vitro for a standardized root bark extract from M. alba (MA60). Sanggenons C and D were identified as major active constituents of MA60. The aim of the present preclinical study was to evaluate, whether these findings are transferable to an in vivo setting. Methods: MA60 was orally administered to female BALB/c mice to determine 1) the maximum tolerated dose (MTD) in an acute toxicity study and 2) its anti-influenza virus and anti-inflammatory effects in an efficacy study. A further aim was to evaluate whether there is a correlation between the obtained results and the amount of sanggenons C and D in serum and tissues. For the quantitation of the marker compounds sanggenons C and D in serum and tissue samples an UPLC-ESI-MS method was developed and validated. Results: In our study setting, the MTD was reached at 100 mg/kg. In the efficacy study, the treatment effects were moderate. Dose-dependent quantities of sanggenon C in serum and sanggenon D in liver samples were detected. Only very low concentrations of sanggenons C and D were determined in lung samples and none of these compounds was found in spleen samples. There was no compound accumulation when MA60 was administered repeatedly. Discussion: The herein determined low serum concentration after oral application once daily encourages the use of an alternative application route like intravenous, inhalation or intranasal administration and/or multiple dosing in further trials. The established method for the quantitation of the marker sanggenon compounds in tissue samples serves as a basis to determine pharmacokinetic parameters such as their bioavailability in future studies.
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Affiliation(s)
- Julia Langeder
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Vienna, Austria
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Mirijam Koch
- Department of Medical Microbiology, Jena University Hospital, Jena, Germany
| | - Hannes Schmietendorf
- Section of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Jena, Germany
| | - Ammar Tahir
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Ulrike Grienke
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Judith M. Rollinger
- Division of Pharmacognosy, Department of Pharmaceutical Sciences, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Michaela Schmidtke
- Section of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Jena, Germany
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4
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Abstracts from The International Society for Aerosols in Medicine. J Aerosol Med Pulm Drug Deliv 2023. [PMID: 37906031 DOI: 10.1089/jamp.2023.ab02.abstracts] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023] Open
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5
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Zwirchmayr J, Cruz CD, Grienke U, Tammela P, Rollinger JM. Biochemometry identifies ostruthin as pluripotent antimicrobial and anthelmintic agent from masterwort. iScience 2023; 26:107523. [PMID: 37636068 PMCID: PMC10457539 DOI: 10.1016/j.isci.2023.107523] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/07/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
The root extract of Peucedanum ostruthium (PO-E) was identified as a promising antibacterial source from a screening of 158 extracts against Staphylococcus aureus. It has also recently been shown to significantly decrease the survival of the nematode Caenorhabditis elegans. We used the biochemometric approach ELINA to investigate the phytochemical characteristics of the multicomponent mixture PO-E to identify the anti-infective constituent(s) targeting S. aureus and C. elegans.1H NMR spectra of PO-E-derived microfractions were correlated with their respective bioactivity data. Heterocovariance analyses unambiguously identified ostruthin as an anti-staphylococcal constituent, which potently also inhibited Enterococcus spp.. ELINA demonstrated that anthelmintic activity was due to a combinatorial effect of ostruthin and isoimperatorin. A C. elegans-based survival and motility assay confirmed that isoimperatorin, imperatorin, and verapamil modulated the susceptibility of ostruthin. The combinatorial effect of these natural products was shown in larvae studies to be related to the function of the nematodes' efflux pump.
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Affiliation(s)
- Julia Zwirchmayr
- Department of Pharmaceutical Sciences, Division of Pharmacognosy, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Cristina D. Cruz
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland
| | - Ulrike Grienke
- Department of Pharmaceutical Sciences, Division of Pharmacognosy, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
| | - Päivi Tammela
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00014 Helsinki, Finland
| | - Judith M. Rollinger
- Department of Pharmaceutical Sciences, Division of Pharmacognosy, Faculty of Life Sciences, University of Vienna, 1090 Vienna, Austria
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Egorova A, Richter M, Khrenova M, Dietrich E, Tsedilin A, Kazakova E, Lepioshkin A, Jahn B, Chernyshev V, Schmidtke M, Makarov V. Pyrrolo[2,3- e]indazole as a novel chemotype for both influenza A virus and pneumococcal neuraminidase inhibitors. RSC Adv 2023; 13:18253-18261. [PMID: 37350858 PMCID: PMC10282731 DOI: 10.1039/d3ra02895j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/12/2023] [Indexed: 06/24/2023] Open
Abstract
Influenza infections are often exacerbated by secondary bacterial infections, primarily caused by Streptococcus pneumoniae. Both respiratory pathogens have neuraminidases that support infection. Therefore, we hypothesized that dual inhibitors of viral and bacterial neuraminidases might be an advantageous strategy for treating seasonal and pandemic influenza pneumonia complicated by bacterial infections. By screening our in-house chemical library, we discovered a new chemotype that may be of interest for a further campaign to find small molecules against influenza. Our exploration of the pyrrolo[2,3-e]indazole space led to the identification of two hit compounds, 6h and 12. These molecules were well-tolerated by MDCK cells and inhibited the replication of H3N2 and H1N1 influenza A virus strains. Moreover, both compounds suppress viral and pneumococcal neuraminidases indicating their dual activity. Given its antiviral activity, pyrrolo[2,3-e]indazole has been identified as a promising scaffold for the development of novel neuraminidase inhibitors that are active against influenza A virus and S. pneumoniae.
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Affiliation(s)
- Anna Egorova
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences (Research Centre of Biotechnology RAS) 33-2 Leninsky Prospect 119071 Moscow Russia
| | - Martina Richter
- Department of Medical Microbiology, Section of Experimental Virology, Jena University Hospital Hans-Knöll-Straße 2 07745 Jena Germany
| | - Maria Khrenova
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences (Research Centre of Biotechnology RAS) 33-2 Leninsky Prospect 119071 Moscow Russia
- Chemistry Department, Lomonosov Moscow State University 1-3 Leninskie Gory 119991 Moscow Russia
| | - Elisabeth Dietrich
- Department of Medical Microbiology, Section of Experimental Virology, Jena University Hospital Hans-Knöll-Straße 2 07745 Jena Germany
| | - Andrey Tsedilin
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences (Research Centre of Biotechnology RAS) 33-2 Leninsky Prospect 119071 Moscow Russia
| | - Elena Kazakova
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences (Research Centre of Biotechnology RAS) 33-2 Leninsky Prospect 119071 Moscow Russia
| | - Alexander Lepioshkin
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences (Research Centre of Biotechnology RAS) 33-2 Leninsky Prospect 119071 Moscow Russia
| | - Birgit Jahn
- Department of Medical Microbiology, Section of Experimental Virology, Jena University Hospital Hans-Knöll-Straße 2 07745 Jena Germany
| | - Vladimir Chernyshev
- Chemistry Department, Lomonosov Moscow State University 1-3 Leninskie Gory 119991 Moscow Russia
- Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences 31-4 Leninsky Prospect 119071 Moscow Russia
| | - Michaela Schmidtke
- Department of Medical Microbiology, Section of Experimental Virology, Jena University Hospital Hans-Knöll-Straße 2 07745 Jena Germany
| | - Vadim Makarov
- Federal Research Centre "Fundamentals of Biotechnology" of the Russian Academy of Sciences (Research Centre of Biotechnology RAS) 33-2 Leninsky Prospect 119071 Moscow Russia
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7
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Lv HW, Wang QL, Luo M, Zhu MD, Liang HM, Li WJ, Cai H, Zhou ZB, Wang H, Tong SQ, Li XN. Phytochemistry and pharmacology of natural prenylated flavonoids. Arch Pharm Res 2023; 46:207-272. [PMID: 37055613 PMCID: PMC10101826 DOI: 10.1007/s12272-023-01443-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 03/07/2023] [Indexed: 04/15/2023]
Abstract
Prenylated flavonoids are a special kind of flavonoid derivative possessing one or more prenyl groups in the parent nucleus of the flavonoid. The presence of the prenyl side chain enriched the structural diversity of flavonoids and increased their bioactivity and bioavailability. Prenylated flavonoids show a wide range of biological activities, such as anti-cancer, anti-inflammatory, neuroprotective, anti-diabetic, anti-obesity, cardioprotective effects, and anti-osteoclastogenic activities. In recent years, many compounds with significant activity have been discovered with the continuous excavation of the medicinal value of prenylated flavonoids, and have attracted the extensive attention of pharmacologists. This review summarizes recent progress on research into natural active prenylated flavonoids to promote new discoveries of their medicinal value.
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Affiliation(s)
- Hua-Wei Lv
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Qiao-Liang Wang
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Meng Luo
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Meng-Di Zhu
- Research Center of Analysis and Measurement, Zhejiang University of Technology University, 310014, Hang Zhou, P. R. China
| | - Hui-Min Liang
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Wen-Jing Li
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Hai Cai
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Zhong-Bo Zhou
- School of Pharmacy, Youjiang Medical University for Nationalities, 533000, Baise, P. R. China
| | - Hong Wang
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China
| | - Sheng-Qiang Tong
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China.
| | - Xing-Nuo Li
- College of Pharmaceutical Science & Zhejiang Provincial Key Laboratory of TCM for Innovative R&D and Digital Intelligent Manufacturing of TCM Great Health Products & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hang zhou, P. R. China.
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8
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Wasilewicz A, Kirchweger B, Bojkova D, Abi Saad MJ, Langeder J, Bütikofer M, Adelsberger S, Grienke U, Cinatl
Jr. J, Petermann O, Scapozza L, Orts J, Kirchmair J, Rabenau HF, Rollinger JM. Identification of Natural Products Inhibiting SARS-CoV-2 by Targeting Viral Proteases: A Combined in Silico and in Vitro Approach. JOURNAL OF NATURAL PRODUCTS 2023; 86:264-275. [PMID: 36651644 PMCID: PMC9885530 DOI: 10.1021/acs.jnatprod.2c00843] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Indexed: 05/24/2023]
Abstract
In this study, an integrated in silico-in vitro approach was employed to discover natural products (NPs) active against SARS-CoV-2. The two SARS-CoV-2 viral proteases, i.e., main protease (Mpro) and papain-like protease (PLpro), were selected as targets for the in silico study. Virtual hits were obtained by docking more than 140,000 NPs and NP derivatives available in-house and from commercial sources, and 38 virtual hits were experimentally validated in vitro using two enzyme-based assays. Five inhibited the enzyme activity of SARS-CoV-2 Mpro by more than 60% at a concentration of 20 μM, and four of them with high potency (IC50 < 10 μM). These hit compounds were further evaluated for their antiviral activity against SARS-CoV-2 in Calu-3 cells. The results from the cell-based assay revealed three mulberry Diels-Alder-type adducts (MDAAs) from Morus alba with pronounced anti-SARS-CoV-2 activities. Sanggenons C (12), O (13), and G (15) showed IC50 values of 4.6, 8.0, and 7.6 μM and selectivity index values of 5.1, 3.1 and 6.5, respectively. The docking poses of MDAAs in SARS-CoV-2 Mpro proposed a butterfly-shaped binding conformation, which was supported by the results of saturation transfer difference NMR experiments and competitive 1H relaxation dispersion NMR spectroscopy.
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Affiliation(s)
- Andreas Wasilewicz
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Vienna
Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Benjamin Kirchweger
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Denisa Bojkova
- Institute
of Medical Virology, University Hospital
Frankfurt, Paul-Ehrlich-Straße
40, 60596 Frankfurt
am Main, Germany
| | - Marie Jose Abi Saad
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Vienna
Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Julia Langeder
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Vienna
Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Matthias Bütikofer
- Swiss
Federal Institute of Technology, Laboratory of Physical Chemistry, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Sigrid Adelsberger
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Vienna
Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Ulrike Grienke
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Jindrich Cinatl
Jr.
- Institute
of Medical Virology, University Hospital
Frankfurt, Paul-Ehrlich-Straße
40, 60596 Frankfurt
am Main, Germany
| | - Olivier Petermann
- Pharmaceutical
Biochemistry Group, School of Pharmaceutical Sciences, University of Geneva, 1205 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1205 Geneva, Switzerland
| | - Leonardo Scapozza
- Pharmaceutical
Biochemistry Group, School of Pharmaceutical Sciences, University of Geneva, 1205 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1205 Geneva, Switzerland
| | - Julien Orts
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Johannes Kirchmair
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Holger F. Rabenau
- Institute
of Medical Virology, University Hospital
Frankfurt, Paul-Ehrlich-Straße
40, 60596 Frankfurt
am Main, Germany
| | - Judith M. Rollinger
- Department
of Pharmaceutical Sciences, University of
Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
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9
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Langeder J, Döring K, Schmietendorf H, Grienke U, Schmidtke M, Rollinger JM. 1H NMR-Based Biochemometric Analysis of Morus alba Extracts toward a Multipotent Herbal Anti-Infective. JOURNAL OF NATURAL PRODUCTS 2023; 86:8-17. [PMID: 36543521 PMCID: PMC9887597 DOI: 10.1021/acs.jnatprod.2c00481] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Indexed: 05/31/2023]
Abstract
Mulberry Diels-Alder-type adducts (MDAAs) derived from the white mulberry tree were discovered recently as dual inhibitors of influenza viruses and pneumococci. For the development of a natural product based remedy for respiratory infections, the aim was to (i) identify the most prolific natural source of MDAAs, (ii) develop a protocol to maximize the content of MDAAs in Morus alba extracts, (iii) unravel constituents with the highest anti-infective potential within multicomponent mixtures, and (iv) select and characterize a hit extract as a candidate for further studies. Validated quantitative UPLC-PDA analysis of seven MDAAs (1-7) revealed the root bark as the best starting material and pressurized liquid extraction (PLE) as the optimum technique for extraction. Extracts enriched in MDAAs of a total content above 20% exerted a potent dual anti-influenza virus and antipneumococcal activity. For a detailed analysis of the most bioactive chemical features and molecules within the extracts, 1H NMR-based heterocovariance analysis (HetCA) was used. According to the multivariate statistical analysis procedure conducted, MDAAs exclusively accounted for the in vitro anti-influenza viral effect. The anti-infective profile of one hit extract (MA60) investigated showed a good tolerance by lung cells (A549, Calu-3) and pronounced in vitro activities against influenza viruses, S. pneumoniae, S. aureus, and inflammation.
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Affiliation(s)
- Julia Langeder
- Division
of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
- Vienna
Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Kristin Döring
- Section
of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Hans-Knöll-Straße 2, 07745 Jena, Germany
| | - Hannes Schmietendorf
- Section
of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Hans-Knöll-Straße 2, 07745 Jena, Germany
| | - Ulrike Grienke
- Division
of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Michaela Schmidtke
- Section
of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Hans-Knöll-Straße 2, 07745 Jena, Germany
| | - Judith M. Rollinger
- Division
of Pharmacognosy, Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
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10
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Xiong S, Li X, Chu H, Deng Z, Sun L, Liu J, Mu Y, Yao Q. Comparative pharmacokinetics of four major compounds after oral administration of Mori Cortex total flavonoid extract in normal and diabetic rats. Front Pharmacol 2023; 14:1148332. [PMID: 36937873 PMCID: PMC10014546 DOI: 10.3389/fphar.2023.1148332] [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: 01/20/2023] [Accepted: 02/17/2023] [Indexed: 03/04/2023] Open
Abstract
Introduction: Mori Cortex has been used in traditional Chinese Medicine as an antidiabetic agent. The aim of this study was to establish a UPLC-MS/MS method for simultaneous determination of morin, morusin, umbelliferone and mulberroside A in rat plasma and investigate the pharmacokinetics differences between normal and diabetic rats following oral administration of Mori Cortex total flavonoid extract. Methods: Samples were pre-treated by protein precipitation and genkwanin was used as internal standard. Chromatographic separation was performed using a Hypersil GOLD C18 column (50 mm × 2.1 mm, 3 μm). The mobile phase consisted of acetonitrile and water (containing 0.1% formic acid) in gradient mode at a flow rate of 0.5 ml/min. The transitions of m/z 300.9→107.1, m/z 419.3→297.1, m/z 160.9→77.0, m/z 567.1→243.2 and m/z 283.1→268.2 were selected for morin, morusin, umbelliferone, mulberroside A and internal standard, respectively. Results: The intra- and inter-day precision for analytes were less than 12.5% and the accuracy ranged from -8.1% to 3.5%. The extraction recovery was >88.5% and no obvious matrix effect was observed. The AUC (0-t) and C max of morin were 501.3 ± 115.5 ng/mL*h and 127.8 ± 56.0 ng/mL in normal rats and 717.3 ± 117.4 ng/ml*h and 218.6 ± 33.5 ng/ml in diabetic rats. Meanwhile, the AUC (0-t) and C max of morusin were 116.4 ± 38.2 ng/ml*h and 16.8 ± 10.1 ng/mL in normal rats and 325.0 ± 87.6 ng/mL*h and 39.2 ± 5.9 ng/ml in diabetic rats. For umbelliferone and mulberroside A, the AUC (0-t) and C max also increased significantly in diabetic rats (p < 0.05). Discussion: The validated method was successfully applied to the pharmacokinetic study in normal and diabetic rats.
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Affiliation(s)
- Shan Xiong
- School of Pharmacy and Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, NHC Key Laboratory of Biotechnology Drug (Shandong Academy of Medical Sciences), Key Lab for Rare and Uncommon Diseases of Shandong Province, Jinan, China
- *Correspondence: Shan Xiong, ; Jia Liu, ; Qingqiang Yao,
| | - Xiaofan Li
- Institute of Basic Medicine, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China
| | - Haiping Chu
- School of Pharmacy and Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, NHC Key Laboratory of Biotechnology Drug (Shandong Academy of Medical Sciences), Key Lab for Rare and Uncommon Diseases of Shandong Province, Jinan, China
| | - Zhipeng Deng
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Linying Sun
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, China
| | - Jia Liu
- School of Pharmacy and Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, NHC Key Laboratory of Biotechnology Drug (Shandong Academy of Medical Sciences), Key Lab for Rare and Uncommon Diseases of Shandong Province, Jinan, China
- *Correspondence: Shan Xiong, ; Jia Liu, ; Qingqiang Yao,
| | - Yanling Mu
- School of Pharmacy and Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, NHC Key Laboratory of Biotechnology Drug (Shandong Academy of Medical Sciences), Key Lab for Rare and Uncommon Diseases of Shandong Province, Jinan, China
| | - Qingqiang Yao
- School of Pharmacy and Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, NHC Key Laboratory of Biotechnology Drug (Shandong Academy of Medical Sciences), Key Lab for Rare and Uncommon Diseases of Shandong Province, Jinan, China
- *Correspondence: Shan Xiong, ; Jia Liu, ; Qingqiang Yao,
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11
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Kwofie SK, Annan DG, Adinortey CA, Boison D, Kwarko GB, Abban RA, Adinortey MB. Identification of novel potential inhibitors of varicella-zoster virus thymidine kinase from ethnopharmacologic relevant plants through an in-silico approach. J Biomol Struct Dyn 2022; 40:12932-12947. [PMID: 34533095 DOI: 10.1080/07391102.2021.1977700] [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] [Indexed: 01/06/2023]
Abstract
Although Varicella or chickenpox infection which is caused by the varicella-zoster virus (VZV) has significantly been managed through vaccination, it remains an infection that poses threats to the nearest future due to therapeutic drawbacks. The focus of this research was geared towards in silico screening for the identification of novel compounds in plants of ethnopharmacological relevance in the treatment of chicken pox in West Africa. The work evaluated 65 compounds reported to be present in Achillea millefolium, Psidium guajava and Vitex doniana sweet to identify potential inhibitors of thymidine kinase, the primary drug target of varicella zoster virus. Out of the 65 compounds docked, 42 of these compounds were observed to possess binding energies lower than -7.0 kcal/mol, however only 20 were observed to form hydrogen bond interactions with the protein. These interactions were elucidated using LigPlot+ and MM-PBSA analysis with residue Ala134 predicted as critical for binding. Pharmacological profiling predicted three potential lead compounds comprising myricetin, apigenin- 4' -glucoside and Abyssinone V to possess good pharmacodynamics properties and negligibly toxic. The molecules were predicted as antivirals including anti-herpes and involved in mechanisms comprising inhibition of polymerase, ATPase and membrane integrity, which were corroborated previously in other viruses. These drug-like compounds are plausible biotherapeutic moieties for further biochemical and cell-based assaying to discover their potential for use against chickenpox. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Samuel Kojo Kwofie
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana.,West African Centre for Cell Biology of Infectious Pathogens, Department of Biochemistry, Cell and Molecular Biology, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Dorothy Gyamfua Annan
- West African Centre for Cell Biology of Infectious Pathogens, Department of Biochemistry, Cell and Molecular Biology, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Cynthia Ayefoumi Adinortey
- Department of Molecular Biology and Biotechnology, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Daniel Boison
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Gabriel Brako Kwarko
- West African Centre for Cell Biology of Infectious Pathogens, Department of Biochemistry, Cell and Molecular Biology, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Rachel Araba Abban
- West African Centre for Cell Biology of Infectious Pathogens, Department of Biochemistry, Cell and Molecular Biology, College of Basic and Applied Sciences, University of Ghana, Accra, Ghana
| | - Michael Buenor Adinortey
- Department of Biochemistry, School of Biological Sciences, University of Cape Coast, Cape Coast, Ghana
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12
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Sivarajan R, Oberwinkler H, Roll V, König EM, Steinke M, Bodem J. A defined anthocyanin mixture sourced from bilberry and black currant inhibits Measles virus and various herpesviruses. BMC Complement Med Ther 2022; 22:181. [PMID: 35804339 PMCID: PMC9264518 DOI: 10.1186/s12906-022-03661-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 06/29/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Anthocyanin-containing plant extracts and carotenoids, such as astaxanthin, have been well-known for their antiviral and anti-inflammatory activity, respectively. We hypothesised that a mixture of Ribes nigrum L. (Grossulariaceae) (common name black currant (BC)) and Vaccinium myrtillus L. (Ericaceae) (common name bilberry (BL)) extracts (BC/BL) with standardised anthocyanin content as well as single plant extracts interfered with the replication of Measles virus and Herpesviruses in vitro.
Methods
We treated cell cultures with BC/BL or defined single plant extracts, purified anthocyanins and astaxanthin in different concentrations and subsequently infected the cultures with the Measles virus (wild-type or vaccine strain Edmonston), Herpesvirus 1 or 8, or murine Cytomegalovirus. Then, we analysed the number of infected cells and viral infectivity and compared the data to non-treated controls.
Results
The BC/BL extract inhibited wild-type Measles virus replication, syncytia formation and cell-to-cell spread. This suppression was dependent on the wild-type virus-receptor-interaction since the Measles vaccine strain was unaffected by BC/BL treatment. Furthermore, the evidence was provided that the delphinidin-3-rutinoside chloride, a component of BC/BL, and purified astaxanthin, were effective anti-Measles virus compounds. Human Herpesvirus 1 and murine Cytomegalovirus replication was inhibited by BC/BL, single bilberry or black currant extracts, and the BC/BL component delphinidin-3-glucoside chloride. Additionally, we observed that BC/BL seemed to act synergistically with aciclovir. Moreover, BC/BL, the single bilberry and black currant extracts, and the BC/BL components delphinidin-3-glucoside chloride, cyanidin-3-glucoside, delphinidin-3-rutinoside chloride, and petunidin-3-galactoside inhibited human Herpesvirus 8 replication.
Conclusions
Our data indicate that Measles viruses and Herpesviruses are differentially susceptible to a specific BC/BL mixture, single plant extracts, purified anthocyanins and astaxanthin. These compounds might be used in the prevention of viral diseases and in addition to direct-acting antivirals, such as aciclovir.
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Morimoto R, Matsubara C, Hanada A, Omoe Y, Ogata T, Isegawa Y. Effect of Structural Differences in Naringenin, Prenylated Naringenin, and Their Derivatives on the Anti-Influenza Virus Activity and Cellular Uptake of Their Flavanones. Pharmaceuticals (Basel) 2022; 15:ph15121480. [PMID: 36558931 PMCID: PMC9785311 DOI: 10.3390/ph15121480] [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: 10/05/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Vaccines and antiviral drugs are widely used to treat influenza infection. However, they cannot rapidly respond to drug-resistant viruses. Therefore, new anti-influenza virus strategies are required. Naringenin is a flavonoid with potential for new antiviral strategies. In this study, we evaluated the antiviral effects of naringenin derivatives and examined the relationship between their cellular uptake and antiviral effects. Madin-Darby canine kidney (MDCK) cells were infected with the A/PR/8/34 strain and exposed to the compound-containing medium for 24 h. The amount of virus in the supernatant was calculated using focus-forming reduction assay. Antiviral activity was evaluated using IC50 and CC50 values. Cells were exposed to a constant concentration of naringenin or prenylated naringenin, and intracellular uptake and distribution were evaluated using a fluorescence microscope. Prenylated naringenin showed strong anti-influenza virus effects, and the amount of intracellular uptake was revealed by the strong intracellular fluorescence. In addition, intracellular distribution differed depending on the position of the prenyl group. The steric factor of naringenin is deeply involved in influenza A virus activity, and prenyl groups are desirable. Furthermore, the prenyl group affects cellular affinity, and the uptake mechanism differs depending on its position. These results provide important information on antiviral strategies.
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Affiliation(s)
- Ryosuke Morimoto
- Department of Food Sciences and Nutrition, Mukogawa Women’s University, Nishinomiya 663-8558, Hyogo, Japan
| | - Chiaki Matsubara
- Department of Food Sciences and Nutrition, Mukogawa Women’s University, Nishinomiya 663-8558, Hyogo, Japan
| | - Akari Hanada
- Department of Food Sciences and Nutrition, Mukogawa Women’s University, Nishinomiya 663-8558, Hyogo, Japan
| | - Yuta Omoe
- Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, 920-1181, Ishikawa, Japan
| | - Tokutaro Ogata
- Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, 920-1181, Ishikawa, Japan
| | - Yuji Isegawa
- Department of Food Sciences and Nutrition, Mukogawa Women’s University, Nishinomiya 663-8558, Hyogo, Japan
- Correspondence:
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14
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Keil J, Rafn GR, Turan IM, Aljohani MA, Sahebjam-Atabaki R, Sun XL. Sialidase Inhibitors with Different Mechanisms. J Med Chem 2022; 65:13574-13593. [PMID: 36252951 PMCID: PMC9620260 DOI: 10.1021/acs.jmedchem.2c01258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Indexed: 11/28/2022]
Abstract
Sialidases, or neuraminidases, are enzymes that catalyze the hydrolysis of sialic acid (Sia)-containing molecules, mostly removal of the terminal Sia (desialylation). By desialylation, sialidase can modulate the functionality of the target compound and is thus often involved in biological pathways. Inhibition of sialidases with inhibitors is an important approach for understanding sialidase function and the underlying mechanisms and could serve as a therapeutic approach as well. Transition-state analogues, such as anti-influenza drugs oseltamivir and zanamivir, are major sialidase inhibitors. In addition, difluoro-sialic acids were developed as mechanism-based sialidase inhibitors. Further, fluorinated quinone methide-based suicide substrates were reported. Sialidase product analogue inhibitors were also explored. Finally, natural products have shown competitive inhibiton against viral, bacterial, and human sialidases. This Perspective describes sialidase inhibitors with different mechanisms and their activities and future potential, which include transition-state analogue inhibitors, mechanism-based inhibitors, suicide substrate inhibitors, product analogue inhibitors, and natural product inhibitors.
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Affiliation(s)
- Joseph
M. Keil
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Garrett R. Rafn
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Isaac M. Turan
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Majdi A. Aljohani
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Reza Sahebjam-Atabaki
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
| | - Xue-Long Sun
- Department of Chemistry, Chemical and
Biomedical Engineering and Center for Gene Regulation in Health and
Disease (GRHD), Cleveland State University, Cleveland, Ohio 44115, United States
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15
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Guo L, Zhao W, Wang Y, Yang Y, Wei C, Guo J, Dai J, Hirai MY, Bao A, Yang Z, Chen H, Li Y. Heterologous biosynthesis of isobavachalcone in tobacco based on in planta screening of prenyltransferases. FRONTIERS IN PLANT SCIENCE 2022; 13:1034625. [PMID: 36275607 PMCID: PMC9582842 DOI: 10.3389/fpls.2022.1034625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Isobavachalcone (IBC) is a prenylated chalcone mainly distributed in some Fabaceae and Moraceae species. IBC exhibits a wide range of pharmacological properties, including anti-bacterial, anti-viral, anti-inflammatory, and anti-cancer activities. In this study, we attempted to construct the heterologous biosynthesis pathway of IBC in tobacco (Nicotiana tabacum). Four previously reported prenyltransferases, including GuILDT from Glycyrrhiza uralensis, HlPT1 from Humulus lupulus, and SfILDT and SfFPT from Sophora flavescens, were subjected to an in planta screening to verify their activities for the biosynthesis of IBC, by using tobacco transient expression with exogenous isoliquiritigenin as the substrate. Only SfFPT and HlPT1 could convert isoliquiritigenin to IBC, and the activity of SfFPT was higher than that of HlPT1. By co-expression of GmCHS8 and GmCHR5 from Glycine max, endogenous isoliquiritigenin was generated in tobacco leaves (21.0 μg/g dry weight). After transformation with a multigene vector carrying GmCHS8, GmCHR5, and SfFPT, de novo biosynthesis of IBC was achieved in transgenic tobacco T0 lines, in which the highest amount of IBC was 0.56 μg/g dry weight. The yield of IBC in transgenic plants was nearly equal to that in SfFPT transient expression experiments, in which substrate supplement was sufficient, indicating that low IBC yield was not attributed to the substrate supplement. Our research provided a prospect to produce valuable prenylflavonoids using plant-based metabolic engineering.
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Affiliation(s)
- Lirong Guo
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Wei Zhao
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yan Wang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yu Yang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Cuimei Wei
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Jian Guo
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Jianye Dai
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | | | - Aike Bao
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Zhigang Yang
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Haijuan Chen
- Key Laboratory of Medicinal Animal and Plant Resources of Qinghai-Tibetan Plateau, Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, China
| | - Yimeng Li
- School of Pharmacy, Lanzhou University, Lanzhou, China
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Key Laboratory of Medicinal Animal and Plant Resources of Qinghai-Tibetan Plateau, Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining, China
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16
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Luo SY, Zhu JY, Zou MF, Yin S, Tang GH. Mulberry Diels-Alder-type adducts: isolation, structure, bioactivity, and synthesis. NATURAL PRODUCTS AND BIOPROSPECTING 2022; 12:31. [PMID: 36050566 PMCID: PMC9436459 DOI: 10.1007/s13659-022-00355-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Mulberry Diels-Alder-type adducts (MDAAs) are unique phenolic natural products biosynthetically derived from the intermolecular [4 + 2]-cycloaddition of dienophiles (mainly chalcones) and dehydroprenylphenol dienes, which are exclusively distributed in moraceous plants. A total of 166 MDAAs with diverse skeletons have been isolated and identified since 1980. Structurally, the classic MDAAs characterized by the chalcone-skeleton dienophiles can be divided into eight groups (Types A - H), while others with non-chalcone dienophiles or some variations of classic MDAAs are non-classic MDAAs (Type I). These compounds have attracted significant attention of natural products and synthetic chemists due to their complex architectures, remarkable biological activities, and synthetic challenges. The present review provides a comprehensive summary of the structural properties, bioactivities, and syntheses of MDAAs. Cited references were collected between 1980 and 2021 from the SciFinder, Web of Science, and China National Knowledge Internet (CNKI).
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Affiliation(s)
- Si-Yuan Luo
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Jun-Yu Zhu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Ming-Feng Zou
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, 510006, People's Republic of China.
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17
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Abbas G, Yu J, Li G. Novel and Alternative Therapeutic Strategies for Controlling Avian Viral Infectious Diseases: Focus on Infectious Bronchitis and Avian Influenza. Front Vet Sci 2022; 9:933274. [PMID: 35937298 PMCID: PMC9353128 DOI: 10.3389/fvets.2022.933274] [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: 04/30/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
The growth of poultry farming has enabled higher spread of infectious diseases and their pathogens among different kinds of birds, such as avian infectious bronchitis virus (IBV) and avian influenza virus (AIV). IBV and AIV are a potential source of poultry mortality and economic losses. Furthermore, some pathogens have the ability to cause zoonotic diseases and impart human health problems. Antiviral treatments that are used often lead to virus resistance along with the problems of side effects, recurrence, and latency of viruses. Though target hosts are being vaccinated, the constant emergence and re-emergence of strains of these viruses cause disease outbreaks. The pharmaceutical industry is gradually focusing on plant extracts to develop novel herbal drugs to have proper antiviral capabilities. Natural therapeutic agents developed from herbs, essential oils (EO), and distillation processes deliver a rich source of amalgams to discover and produce new antiviral drugs. The mechanisms involved have elaborated how these natural therapeutics agents play a major role during virus entry and replication in the host and cause inhibition of viral pathogenesis. Nanotechnology is one of the advanced techniques that can be very useful in diagnosing and controlling infectious diseases in poultry. In general, this review covers the issue of the poultry industry situation, current infectious diseases, mainly IB and AI control measures and, in addition, the setup of novel therapeutics using plant extracts and the use of nanotechnology information that may help to control these diseases.
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Gomes D, Rodrigues LR, Rodrigues JL. Perspectives on the design of microbial cell factories to produce prenylflavonoids. Int J Food Microbiol 2022; 367:109588. [DOI: 10.1016/j.ijfoodmicro.2022.109588] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/08/2022] [Accepted: 02/13/2022] [Indexed: 11/28/2022]
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19
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Sun ZG, Li ZN, Zhang JM, Hou XY, Yeh SM, Ming X. Recent Development of Flavonoids with Various Activities. Curr Top Med Chem 2022; 22:305-329. [PMID: 35040404 DOI: 10.2174/1568026622666220117111858] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 11/22/2022]
Abstract
Flavonoids, a series of compounds with C6-C3-C6 structure, mostly originate from plant metabolism. Flavonoids have shown beneficial effects on many aspects of human physiology and health. Recently, many flavonoids with various activities have been discovered, which has led to more and more studies focusing on their physiological and pharmacodynamic activities. The anti-cancer and anti-viral activities especially have attracted the attention of many researchers. Therefore, the discovery and development of flavonoids as anti-disease drugs has great potential and may make significant contribution to fighting diseases. This review focus on the discovery and development of flavonoids in medicinal chemistry in recent years.
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Affiliation(s)
- Zhi-Gang Sun
- Central Laboratory, Linyi Central Hospital, No.17 Jiankang Road, Linyi 276400, China
- Departments of Cancer Biology and Biomedical Engineering, Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Zhi-Na Li
- Central Laboratory, Linyi Central Hospital, No.17 Jiankang Road, Linyi 276400, China
| | - Jin-Mai Zhang
- Room 205, BIO-X white house, Shanghai Jiao Tong University, No.1954 Huashan Road, Shanghai 200030, P.R. China
| | - Xiao-Yan Hou
- Qilu Pharmaceutical Co., Ltd, 8888 Lvyou Road, High-tech Zone, Jinan, 250104, P.R. China
| | - Stacy Mary Yeh
- Departments of Cancer Biology and Biomedical Engineering, Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Xin Ming
- Departments of Cancer Biology and Biomedical Engineering, Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
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20
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In silico screening, SAR and kinetic studies of naturally occurring flavonoids against SARS CoV-2 main protease. ARAB J CHEM 2022; 15:103473. [PMID: 34909065 PMCID: PMC8502681 DOI: 10.1016/j.arabjc.2021.103473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/03/2021] [Indexed: 12/20/2022] Open
Abstract
The Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) pandemic has become a global challenge based on its replication within the host cells that relies on non-structural proteins, protease (Mpro). Flavonoids, an important class of naturally occurring compounds with medicinal importance, are frequently available within fruits and vegetables. Herein, we report the in silico studies on naturally occurring flavonoids consisting of molecular docking studies and evaluation of theoretical kinetics. In this study, we prepared a library of nine different classes of naturally occurring flavonoids and screened them on Autodock and Autodockvina. The pharmacokinetic properties of most promising compounds have been predicted through ADMET SAR, inhibition constants, ligand efficiency and ligand fit quality have been worked out theoretically. The results revealed that naturally occurring flavonoids could fit well in the receptor's catalytic pocket, interact with essential amino acid residues and could be useful for future drug candidates through in vitro and in vivo studies. Moreover, MD simulation studies were conducted for two most promising flavonoids and the protein-ligand complexes were found quite stable. The selected natural flavonoids are free from any toxic effects and can be consumed as a preventive measure against SARS CoV-2.
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21
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Janakirama Rao AS, Mudduraj Urs VT, Devanna JN, Mahadevappa P, Kumaran RC. Bioactive Isolates of Morus Species as Antibacterial Agents and their In Silico Profiling. LETT DRUG DES DISCOV 2021. [DOI: 10.2174/1570180817999201104120815] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The genus Morus is one of the rich sources of phytomedicine and considered
a beneficial natural source for drugs with potential antimicrobial effect under the traditional
system of medicine.
Introduction:
In the present study, three bioactive compounds isolated from the leaves of two species
of genus Morus and their antibacterial effect against selective pathogens were assessed.
Methods:
The inhibitory effects of the three molecules isolated were assessed for their minimum
inhibition concentration (MIC) and minimum bactericidal concentration (MBC) against selected
pathogens. The in-silico studies provided the toxicity profile and the binding interactions with glucosamine-
6-phosphate synthase for all the isolates.
Results:
Among the three compounds tested, cathafuran-B showed a prominent bacteriostatic and
bactericidal effect, which is supported by the results of in-silico analysis suggesting that cathafuran-
B could be a potential glucosamine-6-phosphate synthase inhibitor.
Conclusion:
The biomolecule isolated from less explored Morus laevigata exhibiting higher antibacterial
effect among the compounds tested warranted opening a new prospect in phytomedicinal
research for exploring its pharmacological properties and lowering the utilization load present on
highly explored Morus alba.
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Affiliation(s)
| | | | | | | | - Ramesh Chapeyil Kumaran
- Department of Biotechnology, Kuvempu University, Sahyadri Science College Campus, Shivamogga, Karnataka, India
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22
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Isogai S, Okahashi N, Asama R, Nakamura T, Hasunuma T, Matsuda F, Ishii J, Kondo A. Synthetic production of prenylated naringenins in yeast using promiscuous microbial prenyltransferases. Metab Eng Commun 2021; 12:e00169. [PMID: 33868922 PMCID: PMC8040282 DOI: 10.1016/j.mec.2021.e00169] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/19/2021] [Accepted: 03/01/2021] [Indexed: 11/29/2022] Open
Abstract
Reconstitution of prenylflavonoids using the flavonoid biosynthetic pathway and prenyltransferases (PTs) in microbes can be a promising attractive alternative to plant-based production or chemical synthesis. Here, we demonstrate that promiscuous microbial PTs can be a substitute for regiospecific but mostly unidentified botanical PTs. To test the prenylations of naringenin, we constructed a yeast strain capable of producing naringenin from l-phenylalanine by genomic integration of six exogenous genes encoding components of the naringenin biosynthetic pathway. Using this platform strain, various microbial PTs were tested for prenylnaringenin production. In vitro screening demonstrated that the fungal AnaPT (a member of the tryptophan dimethylallyltransferase family) specifically catalyzed C-3′ prenylation of naringenin, whereas SfN8DT-1, a botanical PT, specifically catalyzed C-8 prenylation. In vivo, the naringenin-producing strain expressing the microbial AnaPT exhibited heterologous microbial production of 3′-prenylnaringenin (3′-PN), in contrast to the previously reported in vivo production of 8-prenylnaringenin (8-PN) using the botanical SfN8DT-1. These findings provide strategies towards expanding the production of a variety of prenylated compounds, including well-known prenylnaringenins and novel prenylflavonoids. These results also suggest the opportunity for substituting botanical PTs, both known and unidentified, that display relatively strict regiospecificity of the prenyl group transfer. Promiscuous microbial prenyltransferases replaced regiospecific botanical enzymes. A stable yeast strain that produced naringenin from l-phenylalanine was constructed. A fungal prenyltransferase (AnaPT) catalyzed C-3′ prenylation of naringenin. AnaPT catalyzed the first microbial production of 3′-prenylnaringenin. Microbial prenyltransferases permit the production of various prenylated compounds.
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Affiliation(s)
- Shota Isogai
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Technology Research Association of Highly Efficient Gene Design (TRAHED), Kobe, Japan
| | - Nobuyuki Okahashi
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ririka Asama
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Tomomi Nakamura
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Technology Research Association of Highly Efficient Gene Design (TRAHED), Kobe, Japan
| | - Tomohisa Hasunuma
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Technology Research Association of Highly Efficient Gene Design (TRAHED), Kobe, Japan.,Engineering Biology Research Center, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Fumio Matsuda
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Jun Ishii
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Technology Research Association of Highly Efficient Gene Design (TRAHED), Kobe, Japan.,Engineering Biology Research Center, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Akihiko Kondo
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Technology Research Association of Highly Efficient Gene Design (TRAHED), Kobe, Japan.,Engineering Biology Research Center, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan.,Center for Sustainable Resource Science, RIKEN, 1-7-22 Suehiro, Tsurumi, Yokohama, 230-0045, Japan
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23
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Omrani M, Keshavarz M, Nejad Ebrahimi S, Mehrabi M, McGaw LJ, Ali Abdalla M, Mehrbod P. Potential Natural Products Against Respiratory Viruses: A Perspective to Develop Anti-COVID-19 Medicines. Front Pharmacol 2021; 11:586993. [PMID: 33679384 PMCID: PMC7926205 DOI: 10.3389/fphar.2020.586993] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/17/2020] [Indexed: 01/10/2023] Open
Abstract
The emergence of viral pneumonia caused by a novel coronavirus (CoV), known as the 2019 novel coronavirus (2019-nCoV), resulted in a contagious acute respiratory infectious disease in December 2019 in Wuhan, Hubei Province, China. Its alarmingly quick transmission to many countries across the world and a considerable percentage of morbidity and mortality made the World Health Organization recognize it as a pandemic on March 11, 2020. The perceived risk of infection has led many research groups to study COVID-19 from different aspects. In this literature review, the phylogenetics and taxonomy of COVID-19 coronavirus, epidemiology, and respiratory viruses similar to COVID-19 and their mode of action are documented in an approach to understand the behavior of the current virus. Moreover, we suggest targeting the receptors of SARS-CoV and SARS-CoV-2 such as ACE2 and other proteins including 3CLpro and PLpro for improving antiviral activity and immune response against COVID-19 disease. Additionally, since phytochemicals play an essential role in complementary therapies for viral infections, we summarized different bioactive natural products against the mentioned respiratory viruses with a focus on influenza A, SARS-CoV, MERS, and COVID-19.Based on current literature, 130 compounds have antiviral potential, and of these, 94 metabolites demonstrated bioactivity against coronaviruses. Interestingly, these are classified in different groups of natural products, including alkaloids, flavonoids, terpenoids, and others. Most of these compounds comprise flavonoid skeletons. Based on our survey, xanthoangelol E (88), isolated from Angelica keiskei (Miq.) Koidz showed inhibitory activity against SARS-CoV PLpro with the best IC50 value of 1.2 μM. Additionally, hispidulin (3), quercetin (6), rutin (8), saikosaponin D (36), glycyrrhizin (47), and hesperetin (55) had remarkable antiviral potential against different viral infections. Among these compounds, quercetin (6) exhibited antiviral activities against influenza A, SARS-CoV, and COVID-19 and this seems to be a highly promising compound. In addition, our report discusses the obstacles and future perspectives to highlight the importance of developing screening programs to investigate potential natural medicines against COVID-19.
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Affiliation(s)
- Marzieh Omrani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Mohsen Keshavarz
- Department of Medical Virology, The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Meysam Mehrabi
- Shafa Hospital, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Lyndy J. McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - Muna Ali Abdalla
- Department of Food Science and Technology, Faculty of Agriculture, University of Khartoum, Khartoum North, Sudan
| | - Parvaneh Mehrbod
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
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24
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Park MH, Jung S, Yuk HJ, Jang HJ, Kim WJ, Kim DY, Lim G, Lee J, Oh SR, Lee SU, Ryu HW. Rapid identification of isoprenylated flavonoids constituents with inhibitory activity on bacterial neuraminidase from root barks of paper mulberry (Broussonetia papyrifera). Int J Biol Macromol 2021; 174:61-68. [PMID: 33493569 DOI: 10.1016/j.ijbiomac.2021.01.140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 12/16/2022]
Abstract
This study was to assess the possibility of using competitive and slow binding experiments with affinity-based ultrafiltration UPLC-QTof-MS analysis to identify potent bacterial neuraminidase (bNA) inhibitors from the Broussonetia papyrifera roots extract. To isolate unbound compounds from the enzyme-binding complex, the root bark extracts were either incubated in the absence of bNA, in the presence of bNA, or with the time-dependent bNA before the ultrafiltration was performed. Thirteen flavonoids were separated from the target extract, and their inhibitory activities were tested against bNA. The isolated flavonoids exhibited potent inhibition against NA (IC50 = 0.7-54.0 μM). Our kinetic analysis of representative active flavonoids (1, 2, and 6) showed slow and time-dependent reversible inhibition. Additionally, chalcones exhibited noncompetitive inhibition characteristics, whereas flavonols and flavans showed mixed-type behavior. The computational results supported the experimental behaviors of flavonoids 2, 6, 10, and 12, indicating that bounded to the active site, but flavonoids 6 and 10 binds near but not accurately at the active site. Although this is mixed-type inhibition, their binding can be considered competitive.
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Affiliation(s)
- Mi Hyeon Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea
| | - Sunin Jung
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea
| | - Heung Joo Yuk
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine (KIOM), Daejeon 34054, Republic of Korea
| | - Hyun-Jae Jang
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea
| | - Won Jun Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea
| | - GyuTae Lim
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Department of Bioinformatics, KRIBB School of Bioscience, University of Science and Technology (UST), 217 Gajung-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Jinhyuk Lee
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Department of Bioinformatics, KRIBB School of Bioscience, University of Science and Technology (UST), 217 Gajung-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea
| | - Su Ui Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea.
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheong-ju si, Chungcheongbuk-do 28116, Republic of Korea.
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25
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Solnier J, Fladerer JP. Flavonoids: A complementary approach to conventional therapy of COVID-19? PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2021; 20:773-795. [PMID: 32982616 PMCID: PMC7500502 DOI: 10.1007/s11101-020-09720-6] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 08/29/2020] [Indexed: 05/02/2023]
Abstract
COVID-19, the highly contagious novel disease caused by SARS-CoV-2, has become a major international concern as it has spread quickly all over the globe. However, scientific knowledge and therapeutic treatment options for this new coronavirus remain limited. Although previous outbreaks of human coronaviruses (CoVs) such as SARS and MERS stimulated research, there are, to date, no antiviral therapeutics available that specifically target these kinds of viruses. Natural compounds with a great diversity of chemical structures may provide an alternative approach for the discovery of new antivirals. In fact, numerous flavonoids were found to have antiviral effects against SARS-and MERS-CoV by mainly inhibiting the enzymes 3-chymotrypsin-like protease (3CLpro) and papain-like protease (PLpro). In this review, we specifically focused on the search for flavonoids, polyphenolic compounds, which are proven to be effective against human CoVs. We therefore summarized and analyzed the latest progress in research to identify flavonoids for antiviral therapy and proposed strategies for future work on medicinal plants against coronaviruses such as SARS-CoV-2. We discovered quercetin, herbacetin, and isobavachalcone as the most promising flavonoids with anti-CoV potential.
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Affiliation(s)
- Julia Solnier
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4, 8010 Graz, Austria
| | - Johannes-Paul Fladerer
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4, 8010 Graz, Austria
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26
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The anti-Zika virus and anti-tumoral activity of the citrus flavanone lipophilic naringenin-based compounds. Chem Biol Interact 2020; 331:109218. [PMID: 32916141 DOI: 10.1016/j.cbi.2020.109218] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/14/2020] [Accepted: 07/31/2020] [Indexed: 12/15/2022]
Abstract
Flavonoids are natural products widely recognized for their plurality of applications such as antiviral, antiproliferative, antitumor activities and, antioxidant properties. The flavanone naringenin is presented in citrus fruits and has been studied to combat recurrent diseases that still lack effective treatment. Research groups have been investing efforts to the development of new, safe and active candidates to combat these agents or conditions and despite good results recently reported against the Zika virus (ZIKV) and tumor cells, the use of citrus naringenin is limited due to its low bioavailability. Structural exchanges through functionalization, for example, attaching lipophilic groups instead of hydroxyl groups, can further enhance biological properties. Here, the synthesis and characterization of regioselective naringenin mono-7-O-ethers and both mono and di-fatty acid esters, structurally lipophilic ones were demonstrated. Finally, in vitro studies of anti-ZIKV action and antiproliferative activities against melanoma (B16-F10) and breast carcinoma (4T1) cells showed the ether derivatives were actives, with IC50 ranging from 6.76, 18.5 and 22.6 μM to 28.53, 45.1 and 32.3 μM referring to ZIKV, B16-F10 and 4T1 cell lines, respectively. The lipophilic ethers present the ability to inhibit selectively ZIKV-replication in human cells and inhibitions. This class of modifications in flavonoid molecules could be further explore in the future development of specific anti-ZIKV compounds.
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27
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Yang F, Zhang Y, Tariq A, Jiang X, Ahmed Z, Zhihao Z, Idrees M, Azizullah A, Adnan M, Bussmann RW. Food as medicine: A possible preventive measure against coronavirus disease (COVID-19). Phytother Res 2020; 34:3124-3136. [PMID: 32468635 PMCID: PMC7283886 DOI: 10.1002/ptr.6770] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/07/2020] [Accepted: 05/25/2020] [Indexed: 12/23/2022]
Abstract
The recent and ongoing outbreak of coronavirus disease (COVID‐19) is a huge global challenge. The outbreak, which first occurred in Wuhan City, Hubei Province, China and then rapidly spread to other provinces and to more than 200 countries abroad, has been declared a global pandemic by the World Health Organization. Those with compromised immune systems and/or existing respiratory, metabolic or cardiac problems are more susceptible to the infection and are at higher risk of serious illness or even death. The present review was designed to report important functional food plants with immunomodulatory and anti‐viral properties. Data on medicinal food plants were retrieved and downloaded from English‐language journals using online search engines. The functional food plants herein documented might not only enhance the immune system and cure respiratory tract infections but can also greatly impact the overall health of the general public. As many people in the world are now confined to their homes, inclusion of these easily accessible plants in the daily diet may help to strengthen the immune system and guard against infection by SARS‐CoV‐2. This might reduce the risk of COVID‐19 and initiate a rapid recovery in cases of SARS‐CoV‐2 infection.
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Affiliation(s)
- Fan Yang
- The Medical Center of General Practice, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Yue Zhang
- The Medical Center of General Practice and Nephrology Department, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Akash Tariq
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Xinjiang Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Xinjiang Institute of Ecology and Geography, Cele, Xinjiang, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiaolan Jiang
- The Medical Center of General Practice, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China
| | - Zeeshan Ahmed
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Xinjiang Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Xinjiang Institute of Ecology and Geography, Cele, Xinjiang, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhang Zhihao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Xinjiang Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China.,Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Xinjiang Institute of Ecology and Geography, Cele, Xinjiang, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Muhammad Idrees
- College of Life Science, Neijiang Normal University, Neijiang, Sichuan, China
| | - Azizullah Azizullah
- Department of Botanical Studies and Environmental Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Muhammad Adnan
- Department of Botanical Studies and Environmental Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Rainer W Bussmann
- Department of Ethnobotany, Institute of Botany, Ilia State University, Tbilisi, Georgia
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28
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Ahmad N, Badshah SL, Junaid M, Ur Rehman A, Muhammad A, Khan K. Structural insights into the Zika virus NS1 protein inhibition using a computational approach. J Biomol Struct Dyn 2020; 39:3004-3011. [PMID: 32321364 DOI: 10.1080/07391102.2020.1759453] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Zika virus is part of the flaviviruses that spread through the Aedes mosquito species and causes neurological infectious diseases. The non-structural protein 1 (NS1) is an essential enzyme that is involved in the replication of Zika virus. In this study, the newly isolated flavonoid analogs were docked against the NS1 protein. Most of the compounds showed strong interactions with favorable binding energies in the active site of NS1. One of the suitable docked ligand-protein complexes was simulated along with the apo form of the enzyme for 100 ns. The simulation results validated the docking data. The molecular dynamics simulation analysis comprising of root mean square deviation and fluctuation, the radius of gyration, hydrogen bonding, potential energy, principle component analysis, and MM/PBSA revealed about the stability of the apo and complex systems. These flavonoids analogs can inhibit the hexamerization of the NS1 which is necessary for the Zika virus replication.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nasir Ahmad
- Department of Chemistry, Islamia College University, Peshawar, Pakistan
| | - Syed Lal Badshah
- Department of Chemistry, Islamia College University, Peshawar, Pakistan
| | - Muhammad Junaid
- State Key Laboratory of Microbial Metabolism, Department of Bioinformatics and Biostatistics, National Experimental Teaching Center for Life Sciences and Biotechnology, College of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Ashfaq Ur Rehman
- State Key Laboratory of Microbial Metabolism, Department of Bioinformatics and Biostatistics, National Experimental Teaching Center for Life Sciences and Biotechnology, College of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Akhtar Muhammad
- Department of Chemistry, Islamia College University, Peshawar, Pakistan
| | - Khalid Khan
- Department of Chemistry, Islamia College University, Peshawar, Pakistan
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Plants derived therapeutic strategies targeting chronic respiratory diseases: Chemical and immunological perspective. Chem Biol Interact 2020; 325:109125. [PMID: 32376238 PMCID: PMC7196551 DOI: 10.1016/j.cbi.2020.109125] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/16/2020] [Accepted: 04/29/2020] [Indexed: 12/23/2022]
Abstract
The apparent predicament of the representative chemotherapy for managing respiratory distress calls for an obligatory deliberation for identifying the pharmaceuticals that effectively counter the contemporary intricacies associated with target disease. Multiple, complex regulatory pathways manifest chronic pulmonary disorders, which require chemotherapeutics that produce composite inhibitory effect. The cost effective natural product based molecules hold a high fervor to meet the prospects posed by current respiratory-distress therapy by sparing the tedious drug design and development archetypes, present a robust standing for the possible replacement of the fading practice of poly-pharmacology, and ensure the subversion of a potential disease relapse. This study summarizes the experimental evidences on natural products moieties and their components that illustrates therapeutic efficacy on respiratory disorders. Plant derived therapeutics for managing chronic respiratory disorders. Activity of natural product based molecules on key regulatory pathways of COPD. Preclinical evidence for the efficacy of natural product moieties. Clinical significance of plant derived molecules in pulmonary distress.
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30
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Čulenová M, Sychrová A, Hassan STS, Berchová-Bímová K, Svobodová P, Helclová A, Michnová H, Hošek J, Vasilev H, Suchý P, Kuzminová G, Švajdlenka E, Gajdziok J, Čížek A, Suchý V, Šmejkal K. Multiple In vitro biological effects of phenolic compounds from Morus alba root bark. JOURNAL OF ETHNOPHARMACOLOGY 2020; 248:112296. [PMID: 31610262 DOI: 10.1016/j.jep.2019.112296] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 10/09/2019] [Indexed: 05/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Morus alba L. is used in traditional Chinese medicine for the treatment of various diseases, including bacterial infections and inflammation. As a rich source of phenolic compounds, the plant is an object of many phytochemical and pharmacological studies. AIM OF THE STUDY The aim of the study was to isolate and evaluate possible parallel antiviral, antibacterial, and anti-inflammatory activities of phenolic mulberry compounds. MATERIALS AND METHODS Extensive chromatographic separation of mulberry root bark extract and in vitro biological screening of 26 constituents identified promising candidates for further pharmacological research. Selected compounds were screened for anti-infective and anti-inflammatory activities. Antiviral activity was determined by the plaque number reduction assay and by the titer reduction assay, antibacterial using broth microdilution method, and anti-inflammatory activity using COX Colorimetric inhibitor screening assay kit. One compound was evaluated in vivo in carrageenan-induced paw-edema in mice. RESULTS Five prenylated compounds 1, 2, 8, 9, and 11, together with a simple phenolic ester 13, exhibited inhibitory activity against the replication of herpes simplex virus 1 (HSV-1) or herpes simplex virus 2 (HSV-2), with IC50 values ranging from 0.64 to 1.93 μg/mL, and EC50 values 0.93 and 1.61 μg/mL. Molecular docking studies demonstrated the effects of the active compounds by targeting HSV-1 DNA polymerase and HSV-2 protease. In antibacterial assay, compounds 1, 4, 11, and 17 diminished the growth of all of the Gram-positive strains tested, with MIC values of 1-16 μg/mL. The anti-inflammatory ability of several compounds to inhibit cyclooxygenase 2 (COX-2) was tested in vitro, and compound 16 displayed greater activity than the indomethacin, positive control. Mulberrofuran B (11) showed anti-inflammatory activity in vivo against carrageenan-induced paw-edema in mice. CONCLUSIONS Experimental investigation showed promising antiviral, antibacterial, and/or anti-inflammatory activities of the phenolic mulberry constituents, often with multiple inhibitory effects that might be used as a potential source of new medicine.
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Affiliation(s)
- Marie Čulenová
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic.
| | - Alice Sychrová
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Sherif T S Hassan
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Kateřina Berchová-Bímová
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, CZ-165 21, Praha 6-Suchdol, Czech Republic
| | - Petra Svobodová
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Alexandra Helclová
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Hana Michnová
- Department of Infectious Diseases and Microbiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Jan Hošek
- Department of Molecular Biology and Pharmaceutical Biotechnology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Hristo Vasilev
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav str., BG-1000, Sofia, Bulgaria
| | - Pavel Suchý
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Gabriela Kuzminová
- Department of Human Pharmacology and Toxicology, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Emil Švajdlenka
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Jan Gajdziok
- Department of Pharmaceutics, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Alois Čížek
- Department of Infectious Diseases and Microbiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Václav Suchý
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic
| | - Karel Šmejkal
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, CZ-612 42, Brno, Czech Republic.
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Langeder J, Grienke U, Chen Y, Kirchmair J, Schmidtke M, Rollinger JM. Natural products against acute respiratory infections: Strategies and lessons learned. JOURNAL OF ETHNOPHARMACOLOGY 2020; 248:112298. [PMID: 31610260 DOI: 10.1016/j.jep.2019.112298] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 10/08/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE A wide variety of traditional herbal remedies have been used throughout history for the treatment of symptoms related to acute respiratory infections (ARIs). AIM OF THE REVIEW The present work provides a timely overview of natural products affecting the most common pathogens involved in ARIs, in particular influenza viruses and rhinoviruses as well as bacteria involved in co-infections, their molecular targets, their role in drug discovery, and the current portfolio of available naturally derived anti-ARI drugs. MATERIALS AND METHODS Literature of the last ten years was evaluated for natural products active against influenza viruses and rhinoviruses. The collected bioactive agents were further investigated for reported activities against ARI-relevant bacteria, and analysed for the chemical space they cover in relation to currently known natural products and approved drugs. RESULTS An overview of (i) natural compounds active in target-based and/or phenotypic assays relevant to ARIs, (ii) extracts, and (iii) in vivo data are provided, offering not only a starting point for further in-depth phytochemical and antimicrobial studies, but also revealing insights into the most relevant anti-ARI scaffolds and compound classes. Investigations of the chemical space of bioactive natural products based on principal component analysis show that many of these compounds are drug-like. However, some bioactive natural products are substantially larger and have more polar groups than most approved drugs. A workflow with various strategies for the discovery of novel antiviral agents is suggested, thereby evaluating the merit of in silico techniques, the use of complementary assays, and the relevance of ethnopharmacological knowledge on the exploration of the therapeutic potential of natural products. CONCLUSIONS The longstanding ethnopharmacological tradition of natural remedies against ARIs highlights their therapeutic impact and remains a highly valuable selection criterion for natural materials to be investigated in the search for novel anti-ARI acting concepts. We observe a tendency towards assaying for broad-spectrum antivirals and antibacterials mainly discovered in interdisciplinary academic settings, and ascertain a clear demand for more translational studies to strengthen efforts for the development of effective and safe therapeutic agents for patients suffering from ARIs.
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Affiliation(s)
- Julia Langeder
- Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Althanstraße 14, 1090, Vienna, Austria
| | - Ulrike Grienke
- Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Althanstraße 14, 1090, Vienna, Austria.
| | - Ya Chen
- University of Hamburg, Center for Bioinformatics (ZBH), Bundesstraße 43, 22763, Hamburg, Germany
| | - Johannes Kirchmair
- Department of Chemistry, University of Bergen, N-5020, Bergen, Norway; Computational Biology Unit (CBU), University of Bergen, N-5020, Bergen, Norway
| | - Michaela Schmidtke
- Section of Experimental Virology, Department of Medical Microbiology, Jena University Hospital, Hans-Knöll-Straße 2, Jena, 07745, Germany
| | - Judith M Rollinger
- Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Althanstraße 14, 1090, Vienna, Austria
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Guan S, Zhu K, Dong Y, Li H, Yang S, Wang S, Shan Y. Exploration of Binding Mechanism of a Potential Streptococcus pneumoniae Neuraminidase Inhibitor from Herbaceous Plants by Molecular Simulation. Int J Mol Sci 2020; 21:ijms21031003. [PMID: 32028720 PMCID: PMC7038148 DOI: 10.3390/ijms21031003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/28/2020] [Accepted: 02/01/2020] [Indexed: 01/11/2023] Open
Abstract
Streptococcus pneumoniae can cause diseases such as pneumonia. Broad-spectrum antibiotic therapy for Streptococcus pneumoniae is increasingly limited due to the emergence of drug-resistant strains. The development of novel drugs is still currently of focus. Abundant polyphenols have been demonstrated to have antivirus and antibacterial ability. Chlorogenic acid is one of the representatives that has been proven to have the potential to inhibit both the influenza virus and Streptococcus pneumoniae. However, for such a potential neuraminidase inhibitor, the interaction mechanism studies between chlorogenic acid and Streptococcus pneumoniae neuraminidase are rare. In the current study, the binding mechanism of chlorogenic acid and Streptococcus pneumoniae neuraminidase were investigated by molecular simulation. The results indicated that chlorogenic acid might establish the interaction with Streptococcus pneumoniae neuraminidase via hydrogen bonds, salt bridge, and cation-π. The vital residues involved Arg347, Ile348, Lys440, Asp372, Asp417, and Glu768. The side chain of Arg347 might form a cap-like structure to lock the chlorogenic acid to the active site. The results from binding energy calculation indicated that chlorogenic acid had strong binding potential with neuraminidase. The results predicted a detailed binding mechanism of a potential Streptococcus pneumoniae neuraminidase inhibitor, which will be provide a theoretical basis for the mechanism of new inhibitors.
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Affiliation(s)
- Shanshan Guan
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, Jilin, China; (K.Z.); (Y.D.); (H.L.); (S.Y.)
- Key Laboratory of Molecular Nutrition at Universities of Jilin Province, Changchun 130052, Jilin, China
- Correspondence: (S.G.); (Y.S.); Tel.: +86-4318-172-1319 (S.G. & Y.S.)
| | - Ketong Zhu
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, Jilin, China; (K.Z.); (Y.D.); (H.L.); (S.Y.)
- Key Laboratory of Molecular Nutrition at Universities of Jilin Province, Changchun 130052, Jilin, China
| | - Yanjiao Dong
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, Jilin, China; (K.Z.); (Y.D.); (H.L.); (S.Y.)
- Key Laboratory of Molecular Nutrition at Universities of Jilin Province, Changchun 130052, Jilin, China
| | - Hao Li
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, Jilin, China; (K.Z.); (Y.D.); (H.L.); (S.Y.)
- Key Laboratory of Molecular Nutrition at Universities of Jilin Province, Changchun 130052, Jilin, China
| | - Shuang Yang
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, Jilin, China; (K.Z.); (Y.D.); (H.L.); (S.Y.)
- Key Laboratory of Molecular Nutrition at Universities of Jilin Province, Changchun 130052, Jilin, China
| | - Song Wang
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, Jilin, China;
| | - Yaming Shan
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun 130012, Jilin, China
- Correspondence: (S.G.); (Y.S.); Tel.: +86-4318-172-1319 (S.G. & Y.S.)
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Lipničanová S, Chmelová D, Ondrejovič M, Frecer V, Miertuš S. Diversity of sialidases found in the human body - A review. Int J Biol Macromol 2020; 148:857-868. [PMID: 31945439 DOI: 10.1016/j.ijbiomac.2020.01.123] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 12/31/2022]
Abstract
Sialidases are enzymes essential for numerous organisms including humans. Hydrolytic sialidases (EC 3.2.1.18), trans-sialidases and anhydrosialidases (intramolecular trans-sialidases, EC 4.2.2.15) are glycoside hydrolase enzymes that cleave the glycosidic linkage and release sialic acid residues from sialyl substrates. The paper summarizes diverse sialidases present in the human body and their potential impact on development of antiviral compounds - inhibitors of viral neuraminidases. It includes a brief overview of catalytic mechanisms of action of sialidases and describes the origin of sialidases in the human body. This is followed by description of the structure and function of sialidase families with a special focus on the GH33 and GH34 families. Various effects of sialidases on human body are also briefly described. Modulation of sialidase activity may be considered a useful tool for effective treatment of various diseases. In some cases, it is desired to completely suppress the activity of sialidases by suitable inhibitors. Specific sialidase inhibitors are useful for the treatment of influenza, epilepsy, Alzheimer's disease, diabetes, different types of cancer, or heart defects. Challenges and future directions are shortly depicted in the final part of the paper.
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Affiliation(s)
- Sabina Lipničanová
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, SK-91701 Trnava, Slovakia
| | - Daniela Chmelová
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, SK-91701 Trnava, Slovakia.
| | - Miroslav Ondrejovič
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, SK-91701 Trnava, Slovakia.
| | - Vladimír Frecer
- Department of Physical Chemistry of Drugs, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, SK-83232 Bratislava, Slovakia; ICARST n.o., Jamnického 19, SK-84101, Bratislava, Slovakia.
| | - Stanislav Miertuš
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, SK-91701 Trnava, Slovakia; ICARST n.o., Jamnického 19, SK-84101, Bratislava, Slovakia.
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Cataneo AHD, Kuczera D, Koishi AC, Zanluca C, Silveira GF, Arruda TBD, Suzukawa AA, Bortot LO, Dias-Baruffi M, Verri WA, Robert AW, Stimamiglio MA, Duarte Dos Santos CN, Wowk PF, Bordignon J. The citrus flavonoid naringenin impairs the in vitro infection of human cells by Zika virus. Sci Rep 2019; 9:16348. [PMID: 31705028 PMCID: PMC6841724 DOI: 10.1038/s41598-019-52626-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 10/16/2019] [Indexed: 12/16/2022] Open
Abstract
The Zika virus (ZIKV) is an arthropod-borne virus that belongs to the Flaviviridae family. The ZIKV infection is usually asymptomatic or is associated with mild clinical manifestations; however, increased numbers of cases of microcephaly and birth defects have been recently reported. To date, neither a vaccine nor an antiviral treatment has become available to control ZIKV replication. Among the natural compounds recognized for their medical properties, flavonoids, which can be found in fruits and vegetables, have been found to possess biological activity against a variety of viruses. Here, we demonstrate that the citrus flavanone naringenin (NAR) prevented ZIKV infection in human A549 cells in a concentration-dependent and ZIKV-lineage independent manner. NAR antiviral activity was also observed when primary human monocyte-derived dendritic cells were infected by ZIKV. NAR displayed its antiviral activity when the cells were treated after infection, suggesting that NAR acts on the viral replication or assembly of viral particles. Moreover, a molecular docking analysis suggests a potential interaction between NAR and the protease domain of the NS2B-NS3 protein of ZIKV which could explain the anti-ZIKV activity of NAR. Finally, the results support the potential of NAR as a suitable candidate molecule for developing anti-ZIKV treatments.
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Affiliation(s)
| | - Diogo Kuczera
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Andrea Cristine Koishi
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Camila Zanluca
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | | | - Thais Bonato de Arruda
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Andréia Akemi Suzukawa
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | - Leandro Oliveira Bortot
- Laboratório de Física Biológica, Departamento de Física e Química, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marcelo Dias-Baruffi
- Laboratório de Glicoimunologia, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Waldiceu Aparecido Verri
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Anny Waloski Robert
- Laboratório de Células Tronco, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil
| | | | | | - Pryscilla Fanini Wowk
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil.
| | - Juliano Bordignon
- Laboratório de Virologia Molecular, Instituto Carlos Chagas/Fiocruz-PR, Curitiba, Paraná, Brazil.
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Zuo GY, Yang CX, Ruan ZJ, Han J, Wang GC. Potent anti-MRSA activity and synergism with aminoglycosides by flavonoid derivatives from the root barks of Morus alba, a traditional Chinese medicine. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02393-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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36
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Bandari C, Scull EM, Bavineni T, Nimmo SL, Gardner ED, Bensen RC, Burgett AW, Singh S. FgaPT2, a biocatalytic tool for alkyl-diversification of indole natural products. MEDCHEMCOMM 2019; 10:1465-1475. [PMID: 31534661 PMCID: PMC6748273 DOI: 10.1039/c9md00177h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/05/2019] [Indexed: 01/02/2023]
Abstract
Demonstration of FgaPT2 catalyzed alkyl-diversification of indole containing natural products.
Aromatic prenyltransferases from natural product biosynthetic pathways display relaxed specificity for their aromatic substrates. While a growing body of evidence suggests aromatic prenyltransferases to be more tolerant towards their alkyl-donor substrates, most studies aimed at probing their donor-substrate specificity are limited to only a small set of alkyl pyrophosphate donors, restricting their broader utility as biocatalysts for synthetic applications. Here, we assess the donor substrate specificity of an l-tryptophan C4-prenyltransferase, also known as C4-dimethylallyltryptophan synthase, FgaPT2 from Aspergillus fumigatus, using an array of 34 synthetic unnatural alkyl-pyrophosphate analogues, and demonstrate FgaPT2 can catalyze the transfer of 25 of the 34 non-native alkyl groups from their corresponding synthetic alkyl-pyrophosphate analogues at N1, C3, C4 and C5 position of tryptophan in a normal and reverse manner. The kinetic studies and regio-chemical analysis of the alkyl-l-tryptophan products suggest that the alkyl-donor transfer by FgaPT2 is a function of the stability of the carbocation and the steric factors in the active site of the enzyme. Further, to demonstrate the biocatalytic utility of FgaPT2, this study also highlights the FgaPT2-catalyzed synthesis of a small set of alkyl-diversified indolocarbazole analogues. These results reveal FgaPT2 to be more tolerant to diverse non-native alkyl-donor substrates beyond their known acceptor substrate promiscuity and set the stage for its development as a novel biocatalytic tool for the differential alkylation of natural products for drug discovery and other synthetic applications.
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Affiliation(s)
- Chandrasekhar Bandari
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Erin M Scull
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Tejaswi Bavineni
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Susan L Nimmo
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Eric D Gardner
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Ryan C Bensen
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Anthony W Burgett
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
| | - Shanteri Singh
- Department of Chemistry and Biochemistry , University of Oklahoma , Stephenson Life Sciences Research Center , 101 Stephenson Parkway , Norman , Oklahoma 73019 , USA .
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Liu J, Mu Y, Xiong S, Sun P, Deng Z. A UPLC–MS/MS method for comparative pharmacokinetics study of morusin and morin in normal and diabetic rats. Biomed Chromatogr 2019; 33:e4516. [DOI: 10.1002/bmc.4516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 02/18/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Jia Liu
- School of Medicine and Life SciencesUniversity of Jinan‐Shandong Academy of Medical Sciences Jinan Shandong China
- Institute of Materia MedicaShandong Academy of Medical Sciences Jinan Shandong China
- Key Laboratory for Biotech‐Drugs Ministry of Health Jinan Shandong China
- Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan Shandong China
| | - Yanling Mu
- Institute of Materia MedicaShandong Academy of Medical Sciences Jinan Shandong China
| | - Shan Xiong
- Institute of Materia MedicaShandong Academy of Medical Sciences Jinan Shandong China
| | - Peilu Sun
- Institute of Materia MedicaShandong Academy of Medical Sciences Jinan Shandong China
| | - Zhipeng Deng
- Institute of Materia MedicaShandong Academy of Medical Sciences Jinan Shandong China
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Wei M, Wang PG. Desialylation in physiological and pathological processes: New target for diagnostic and therapeutic development. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2019; 162:25-57. [PMID: 30905454 DOI: 10.1016/bs.pmbts.2018.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Desialylation is a pivotal part of sialic acid metabolism, which initiates the catabolism of glycans by removing the terminal sialic acid residues on glycans, thereby modulating the structure and functions of glycans, glycoproteins, or glycolipids. The functions of sialic acids have been well recognized, whereas the function of desialylation process is underappreciated or largely ignored. However, accumulating evidence demonstrates that desialylation plays an important role in a variety of physiological and pathological processes. This chapter summarizes the current knowledge pertaining to desialylation in a variety of physiological and pathological processes, with a focus on the underlying molecular mechanisms. The potential of targeting desialylation process for diagnostic and therapeutic development is also discussed.
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Affiliation(s)
- Mohui Wei
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
| | - Peng George Wang
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, United States
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40
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Kim BR, Park JY, Jeong HJ, Kwon HJ, Park SJ, Lee IC, Ryu YB, Lee WS. Design, synthesis, and evaluation of curcumin analogues as potential inhibitors of bacterial sialidase. J Enzyme Inhib Med Chem 2018; 33:1256-1265. [PMID: 30126306 PMCID: PMC6104608 DOI: 10.1080/14756366.2018.1488695] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 06/05/2018] [Accepted: 06/12/2018] [Indexed: 11/06/2022] Open
Abstract
Sialidases are key virulence factors that remove sialic acid from the host cell surface glycan, unmasking receptors that facilitate bacterial adherence and colonisation. In this study, we developed potential agents for treating bacterial infections caused by Streptococcus pneumoniae Nan A that inhibit bacterial sialidase using Turmeric and curcumin analogues. Design, synthesis, and structure analysis relationship (SAR) studies have been also described. Evaluation of the synthesised derivatives demonstrated that compound 5e was the most potent inhibitor of S. pneumoniae sialidase (IC50 = 0.2 ± 0.1 µM). This compound exhibited a 3.0-fold improvement in inhibitory activity over that of curcumin and displayed competitive inhibition. These results warrant further studies confirming the antipneumococcal activity 5e and indicated that curcumin derivatives could be potentially used to treat sepsis by bacterial infections.
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Affiliation(s)
- Bo Ram Kim
- Bio-processing Technology Development and Support Team, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Ji-Young Park
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Hyung Jae Jeong
- Bio-processing Technology Development and Support Team, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Hyung-Jun Kwon
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Su-Jin Park
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - In-Chul Lee
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Young Bae Ryu
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Woo Song Lee
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
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Sharapova YA, Švedas VK. Molecular Modeling of the Binding of the Allosteric Inhibitor Optactin at a New Binding Site in Neuraminidase A from Streptococcus pneumoniae. ACTA ACUST UNITED AC 2018. [DOI: 10.3103/s0027131418050097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Xiao A, Slack TJ, Li Y, Shi D, Yu H, Li W, Liu Y, Chen X. Streptococcus pneumoniae Sialidase SpNanB-Catalyzed One-Pot Multienzyme (OPME) Synthesis of 2,7-Anhydro-Sialic Acids as Selective Sialidase Inhibitors. J Org Chem 2018; 83:10798-10804. [PMID: 30105908 DOI: 10.1021/acs.joc.8b01519] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Streptococcus pneumoniae sialidase SpNanB is an intramolecular trans-sialidase (IT-sialidase) and a virulence factor that is essential for streptococcal infection of the upper and lower respiratory tract. SpNanB catalyzes the formation of 2,7-anhydro- N-acetylneuraminic acid (2,7-anhydro-Neu5Ac), a potential prebiotic that can be used as the sole carbon source of a common human gut commensal anaerobic bacterium. We report here the development of an efficient one-pot multienzyme (OPME) system for synthesizing 2,7-anhydro-Neu5Ac and its derivatives. Based on a crystal structure analysis, an N-cyclohexyl derivative of 2,7-anhydro-neuraminic acid was designed, synthesized, and shown to be a selective inhibitor against SpNanB and another Streptococcus pneumoniae sialidase SpNanC. This study demonstrates a new strategy of synthesizing 2,7-anhydro-sialic acids in a gram scale and the potential application of their derivatives as selective sialidase inhibitors.
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Affiliation(s)
- An Xiao
- Department of Chemistry , University of California , One Shields Avenue , Davis , California 95616 , United States
| | - Teri J Slack
- Department of Chemistry , University of California , One Shields Avenue , Davis , California 95616 , United States
| | - Yanhong Li
- Department of Chemistry , University of California , One Shields Avenue , Davis , California 95616 , United States
| | - Dashuang Shi
- Children's National Medical Center , 111 Michigan Ave , NW, Washington, DC 20012 , United States
| | - Hai Yu
- Department of Chemistry , University of California , One Shields Avenue , Davis , California 95616 , United States
| | - Wanqing Li
- Department of Chemistry , University of California , One Shields Avenue , Davis , California 95616 , United States
| | - Yang Liu
- Children's National Medical Center , 111 Michigan Ave , NW, Washington, DC 20012 , United States
| | - Xi Chen
- Department of Chemistry , University of California , One Shields Avenue , Davis , California 95616 , United States
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Luganini A, Terlizzi ME, Catucci G, Gilardi G, Maffei ME, Gribaudo G. The Cranberry Extract Oximacro ® Exerts in vitro Virucidal Activity Against Influenza Virus by Interfering With Hemagglutinin. Front Microbiol 2018; 9:1826. [PMID: 30131793 PMCID: PMC6090095 DOI: 10.3389/fmicb.2018.01826] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/23/2018] [Indexed: 01/13/2023] Open
Abstract
The defense against influenza virus (IV) infections still poses a series of challenges. The current antiviral arsenal against influenza viruses is in fact limited; therefore, the development of new anti-influenza strategies effective against antigenically different viruses is an urgent priority. Bioactive compounds derived from medicinal plants and fruits may provide a natural source of candidates for such broad-spectrum antivirals. In this regard, cranberry (Vaccinium macrocarpon Aiton) extracts on the basis of their recognized anti-adhesive activities against bacteria, may provide potential compounds able to prevent viral attachment to target cells. Nevertheless, only few studies have so far investigated the possible use of cranberry extracts as an antiviral tool. This study focuses on the suitability of a cranberry extract as a direct-acting anti-influenza compound. We show that the novel cranberry extract Oximacro® inhibits influenza A and B viruses (IAV, IBV) replication in vitro because of its high content of A-type proanthocyanidins (PAC-A) dimers and trimers. Mechanistic studies revealed that Oximacro® prevents attachment and entry of IAV and IBV into target cells and exerts a virucidal activity. Oximacro® was observed to interact with the ectodomain of viral hemagglutinin (HA) glycoprotein, thus suggesting the interference with HA functions and a consequent loss of infectivity of IV particles. Fluorescence spectroscopy revealed a reduction in the intrinsic fluorescence of HA protein after incubation with purified dimeric PAC-A (PAC-A2), thus confirming a direct interaction between HA and Oximacro® PAC-A2. In silico docking simulations further supported the in vitro results and indicated that among the different components of the Oximacro® chemical profile, PAC-A2 exhibited the best binding propensity with an affinity below 10 nM. The role of PAC-A2 in the anti-IV activity of Oximacro® was eventually confirmed by the observation that it prevented IAV and IVB replication and caused the loss of infectivity of IV particles, thus indicating PAC-A2 as the major active component of Oximacro®. As a whole, these results suggest Oximacro® as a potential candidate to create novel antiviral agents of natural origin for the prevention of IV infections.
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Affiliation(s)
- Anna Luganini
- Laboratory of Microbiology and Virology, Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Maria E. Terlizzi
- Laboratory of Microbiology and Virology, Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Gianluca Catucci
- Biochemistry Laboratory, Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Gianfranco Gilardi
- Biochemistry Laboratory, Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Massimo E. Maffei
- Plant Physiology Laboratory, Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Giorgio Gribaudo
- Laboratory of Microbiology and Virology, Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
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44
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Evaluation of antioxidant and antibacterial activities of the stems of Flammulina velutipes and Hypsizygus tessellatus (white and brown var.) extracted with different solvents. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2018. [DOI: 10.1007/s11694-018-9810-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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The Flavonoid Isoquercitrin Precludes Initiation of Zika Virus Infection in Human Cells. Int J Mol Sci 2018; 19:ijms19041093. [PMID: 29621184 PMCID: PMC5979602 DOI: 10.3390/ijms19041093] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/23/2018] [Accepted: 04/03/2018] [Indexed: 11/16/2022] Open
Abstract
The medical importance of Zika virus (ZIKV) was fully highlighted during the recent epidemics in South Pacific islands and Americas due to ZIKV association with severe damage to fetal brain development and neurological complications in adult patients. A worldwide research effort has been undertaken to identify effective compounds to prevent or treat ZIKV infection. Fruits and vegetables may be sources of compounds with medicinal properties. Flavonoids are one class of plant compounds that emerge as promising antiviral molecules against ZIKV. In the present study, we demonstrated that flavonoid isoquercitrin exerts antiviral activity against African historical and Asian epidemic strains of ZIKV in human hepatoma, epithelial, and neuroblastoma cell lines. Time-of-drug addition assays showed that isoquercitrin acts on ZIKV entry by preventing the internalisation of virus particles into the host cell. Our data also suggest that the glycosylated moiety of isoquercitrin might play a role in the antiviral effect of the flavonoid against ZIKV. Our results highlight the importance of isoquercitrin as a promising natural antiviral compound to prevent ZIKV infection.
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Ferreira PG, Ferraz AC, Figueiredo JE, Lima CF, Rodrigues VG, Taranto AG, Ferreira JMS, Brandão GC, Vieira-Filho SA, Duarte LP, de Brito Magalhães CL, de Magalhães JC. Detection of the antiviral activity of epicatechin isolated from Salacia crassifolia (Celastraceae) against Mayaro virus based on protein C homology modelling and virtual screening. Arch Virol 2018; 163:1567-1576. [DOI: 10.1007/s00705-018-3774-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 02/06/2018] [Indexed: 11/29/2022]
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Mukai R. Prenylation enhances the biological activity of dietary flavonoids by altering their bioavailability. Biosci Biotechnol Biochem 2018; 82:207-215. [DOI: 10.1080/09168451.2017.1415750] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
Flavonoids are distributed across the plant kingdom and have attracted substantial attention owing to their potential benefits for human health. Several studies have demonstrated that flavonoids prenylation enhances various biological activities, suggesting an attractive tool for developing functional foods. This review provides an overview of the current knowledge on how prenylation influences the biological activity and bioavailability of flavonoids. The enhancement effect of prenylation on the biological activities of dietary flavonoids in mammals was demonstrated by comparing the effect of 8-prenyl naringenin (8PN) with that of parent naringenin in the prevention of disuse muscle atrophy in mice. This enhancement results from higher muscular accumulation of 8PN than naringenin. As to bioavailability, despite the lower absorption of 8-prenyl quercetin (8PQ) compared with quercetin, higher 8PQ accumulation was found in the liver and kidney. These data imply that prenylation interferes with the elimination of flavonoids from tissues.
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Affiliation(s)
- Rie Mukai
- Field of Food Science and Technology, Department of Food Science, Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, Japan
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48
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Lu AQ, Chen MH, Gao J, Wang L, Yang HY, Li L, Zhang B, He HK, Wang SJ. A Tri-O-Bridged Diels-Alder Adduct from Cortex Mori Radicis. Molecules 2018; 23:molecules23010133. [PMID: 29315271 PMCID: PMC6017575 DOI: 10.3390/molecules23010133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/07/2018] [Accepted: 01/07/2018] [Indexed: 12/20/2022] Open
Abstract
Sanggenon X, an unusual tri-O-bridged Diels-Alder adduct, was isolated from Cortex Mori Radicis. Its structure was established by spectroscopic analysis, including NMR and HR-MS (High Resolution Mass Spectrometry). Sanggenon X contained three O-bridged rings, where the oxygenated bridgeheads were all quaternary carbons. Chemical methylation was carried out to deduce the linkages of the three O-bridges. The absolute configuration was determined by calculating the ECD (Electronic Circular Dichroism) using the TDDFT (Time-Dependent Density Functional Theory) method. Sanggenon X showed significant antioxidant activity against Fe2+-Cys-induced lipid peroxidation in rat liver microsomes, and was as effective as the positive control, curcumin.
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Affiliation(s)
- An-Qi Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
| | - Ming-Hua Chen
- Institute of Medicinal of Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China;
| | - Jie Gao
- GRU Cancer Center, Augusta University, Augusta, GA 30912, USA;
| | - Lu Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
| | - Han-Yu Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
| | - Lan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
| | - Bo Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
| | - Hao-Ke He
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
| | - Su-Juan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China; (A.-Q.L.); (L.W.); (H.-Y.Y.); (L.L.); (B.Z.); (H.-K.H.)
- Correspondence:
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Paul S, Bhattacharya AK. Hydroxyl directed C-arylation: synthesis of 3-hydroxyflavones and 2-phenyl-3-hydroxy pyran-4-ones under transition-metal free conditions. Org Biomol Chem 2018; 16:444-451. [DOI: 10.1039/c7ob01929g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyl assisted, efficient, transition-metal free and direct C-arylation of 3-hydroxychromone and 5-hydroxy pyran-4-one moieties in the presence of a base, air as an oxidant and arylhydrazines as arylating agents to furnish highly biologically active 3-hydroxyflavones and 2-phenyl-3-hydroxy pyran-4-ones has been developed.
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Affiliation(s)
- Sayantan Paul
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Asish K. Bhattacharya
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune 411 008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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50
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Smith RJ, Nhu D, Clark MR, Gai S, Lucas NT, Hawkins BC. Synthesis of Chromones from 1,1-Diacylcyclopropanes: Toward the Synthesis of Bromophycoic Acid E. J Org Chem 2017; 82:5317-5327. [PMID: 28440639 DOI: 10.1021/acs.joc.7b00648] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A tandem deprotection-cyclization reaction of 1,1-diacylcyclopropanes is described which allows rapid access to structurally diverse 2,3-disubstituted chromones in good yields, and with straightforward purification. The utility of this reaction is showcased by the construction of the potent antibacterial marine natural product bromophycoic acid E scaffold.
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Affiliation(s)
- Robert J Smith
- Department of Chemistry, University of Otago , Dunedin, New Zealand
| | - Duong Nhu
- Department of Chemistry, University of Otago , Dunedin, New Zealand
| | - Mitchell R Clark
- Department of Chemistry, University of Otago , Dunedin, New Zealand
| | - Sinan Gai
- Department of Chemistry, University of Otago , Dunedin, New Zealand
| | - Nigel T Lucas
- Department of Chemistry, University of Otago , Dunedin, New Zealand
| | - Bill C Hawkins
- Department of Chemistry, University of Otago , Dunedin, New Zealand
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