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Ali SI, Salama A. Natural Immunomodulatory Agents as a Complementary Therapy for Poxviruses. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1451:337-354. [PMID: 38801589 DOI: 10.1007/978-3-031-57165-7_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Poxviruses target innate immunity mediators such as tumor necrosis factors, interleukins, interferons, complement, and chemokines. It also targets adaptive immunity such as CD4+ T cells, CD4+ T cells, and B cells. Emerging of the recent epidemic of monkeypox virus (MPXV), a zoonotic disease native to Central and Western Africa, besides the lack of permitted treatments for poxviruses infections, encouraged researchers to identify effective inhibitors to help in preventing and treating poxviruses infections. Natural bioactive components, particularly polyphenolics, are promising for creating powerful antioxidants, anti-inflammatory, immune-stimulating, and antiviral agents. As a result, they are potentially effective therapies for preventing and treating viral diseases, such as infections caused by poxviruses including the recent pandemic MPXV. Polyphenolics: rosmarinic acid, caffeic acid, resveratrol, quercitrin, myricitrin, gingerol, gallotannin, and propolis-benzofuran A, as well as isoquinoline alkaloids: galanthamine and thalimonine represent prospective antiviral agents against MPXV, they can inhibit MPXV and other poxviruses via targeting different viral elements including DNA Topoisomerase I (TOP1), Thymidine Kinase (TK), serine/threonine protein kinase (Ser/Thr kinase), and protein A48R. The bioactive extracts of different traditional plants including Guiera senegalensis, Larrea tridentata, Sarracenia purpurea, Kalanchoe pinnata (Lam.) Pers., Zingiber officinale Roscoe, Quercus infectoria, Rhus chinensis, Prunella vulgaris L., Salvia rosmarinus, and Origanum vulgare also can inhibit the growth of different poxviruses including MPXV, vaccinia virus (VACV), variola virus, buffalopox virus, fowlpox virus, and cowpox virus. There is an urgent need for additional molecular studies to identify and confirm the anti-poxviruses properties of various natural bioactive components, especially those that showed potent antiviral activity against other viruses.
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Affiliation(s)
- Sami I Ali
- Plant Biochemistry Department, National Research Centre (NRC), 33 El Buhouth St. (Former El-Tahrir St.), Dokki, Cairo, 12622, Egypt.
| | - Abeer Salama
- Pharmacology Department, National Research Centre (NRC), 33 El Buhouth St. (Former El-Tahrir St.), Dokki, Cairo, 12622, Egypt
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Xie J, Tan P, Geng F, Shang Q, Qin S, Hao L. A practical and rapid screening method for influenza virus neuraminidase inhibitors based on fluorescence detection. ANAL SCI 2023; 39:547-556. [PMID: 36617368 PMCID: PMC9826620 DOI: 10.1007/s44211-023-00267-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/29/2022] [Indexed: 01/09/2023]
Abstract
A new analytical method for rapid screening of influenza virus neuraminidase inhibitors was established. The method is based on the principle that, given a certain amount of neuraminidase, the sample and the neuraminidase act in the microplate for a period of time, and the active neuraminidase that is not inhibited by the sample can generate a fluorescence value at a specific wavelength after binding to the substrate, and the rate of inhibition of neuraminidase by the sample can be calculated based on the actual detected fluorescence value. This newly developed method was used to screen and evaluate the in vitro anti-neuraminidase activity of 39 high-purity compounds contained in three traditional Chinese herbal medicines, and finally 25 compounds with strong activity were obtained. The newly established neuraminidase inhibitor analytical method has these advantages of practicality, rapidity, high sensitivity and low cost, and has a good value for promotion and application. This article newly establishes a rapid, sensitive, simple and practical screening method for influenza virus neuraminidase inhibitors, which is a great complement to the existing methods and has a good promotion and application value.
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Affiliation(s)
- Junjie Xie
- Key Laboratory of Biological Evaluation of TCM Quality of State Administration of Traditional Chinese Medicine, Sichuan Academy of Chinese Medicine Sciences, Chengdu, 610041, China
| | - Peng Tan
- Key Laboratory of Biological Evaluation of TCM Quality of State Administration of Traditional Chinese Medicine, Sichuan Academy of Chinese Medicine Sciences, Chengdu, 610041, China.
| | - Funeng Geng
- Sichuan Key Laboratory for Medicinal American Cockroach, Sichuan Good Doctor Panxi Pharmaceutical Co., Ltd., Chengdu, 610000, China
| | - Qiang Shang
- Sichuan Engineering Research Center of Antiviral Traditional Chinese Medicine Industrialization, Pengzhou, 611900, China
| | - Shanbo Qin
- Key Laboratory of Biological Evaluation of TCM Quality of State Administration of Traditional Chinese Medicine, Sichuan Academy of Chinese Medicine Sciences, Chengdu, 610041, China
| | - Lu Hao
- Key Laboratory of Biological Evaluation of TCM Quality of State Administration of Traditional Chinese Medicine, Sichuan Academy of Chinese Medicine Sciences, Chengdu, 610041, China
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Langer D, Mlynarczyk DT, Dlugaszewska J, Tykarska E. Potential of glycyrrhizic and glycyrrhetinic acids against influenza type A and B viruses: A perspective to develop new anti-influenza compounds and drug delivery systems. Eur J Med Chem 2023; 246:114934. [PMID: 36455358 DOI: 10.1016/j.ejmech.2022.114934] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Despite the recent dynamic development of medicine, influenza is still a significant epidemiological problem for people around the world. The growing resistance of influenza viruses to currently available antiviral drugs makes it necessary to search for new compounds or drug forms with potential high efficacy against human influenza A and B viruses. One of the methods of obtaining new active compounds is to chemically modify privileged structures occurring in the natural environment. The second solution, that is gaining more and more interest, is the use of modern drug carriers, which significantly improve physicochemical and pharmacokinetic parameters of the transported substances. Molecules known from the earliest times for their numerous therapeutic properties are glycyrrhizinic acid (GA) and glycyrrhetinic acid (GE). Both compounds constitute the main active agents of the licorice (Glycyrrhiza glabra, Leguminosae) root and, according to a number of scientific reports, show antiviral properties against both DNA and RNA viruses. The above information prompted many scientific teams around the world to obtain and test in vitro and/or in vivo new synthetic GA and GE derivatives against influenza A and B viruses. Similarly, in recent years, a significant amount of GA and GE-based drug delivery systems (DDS) such as nanoparticles, micelles, liposomes, nanocrystals, and carbon dots has been prepared and tested for antiviral activity, including those against influenza A and B viruses. This work systematizes the attempts undertaken to study the antiviral activity of new GA and GE analogs and modern DDS against clinically significant human influenza viruses, at the same time indicating the directions of their further development.
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Affiliation(s)
- Dominik Langer
- Department of Genetics and Pharmaceutical Microbiology, Poznan University of Medical Sciences, Rokietnicka 3, 60-806, Poznań, Poland.
| | - Dariusz T Mlynarczyk
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780, Poznań, Poland.
| | - Jolanta Dlugaszewska
- Department of Genetics and Pharmaceutical Microbiology, Poznan University of Medical Sciences, Rokietnicka 3, 60-806, Poznań, Poland
| | - Ewa Tykarska
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780, Poznań, Poland
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Chaiqin Qingning Capsule Inhibits Influenza Virus Infection and Inflammation In Vitro and In Vivo. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6640731. [PMID: 34552653 PMCID: PMC8452396 DOI: 10.1155/2021/6640731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 07/21/2021] [Accepted: 08/20/2021] [Indexed: 02/03/2023]
Abstract
Background Chaiqin Qingning Capsule (CQ-C) is a traditional Chinese medicine (TCM) formula commonly used to treat respiratory infectious diseases in China. The aim of this study was to detect the effect and mechanism of CQ-C treated with influenza virus in vitro and vivo. Methods The cytotoxicity and antiviral activity of CQ-C in vitro was determined by methyl thiazolyl tetrazolium (MTT) assay. The regulation of CQ-C on cytokine/chemokine expression was evaluated using RT-qPCR. In addition, the effect of CQ-C on the pathway protein, NF-κB, and its phosphorylation level was verified by western blotting. After virus inoculation, BALB/c mice were administered with CQ-C of different concentrations for 7 days. Body weight, viral titer, lung pathology, and mortality of the mice were measured, and the level of inflammatory cytokines was also examined using real-time RT-qPCR. Results CQ-C inhibited the proliferation of influenza virus of various strains in vitro, with the 50% inhibitory concentration (IC50) ranging from 49 to 59 µg/mL. CQ-C downregulated virus-induced gene expression of IL-6, TNF-α, CXCL8, CXCL10, CCL5, and COX-2 in a dose-dependent manner in A549 cells. Also, CQ-C inhibited the expression of NF-κB protein of the signaling pathway. Moreover, a decrease of the lung index and mortality of mice was observed in the CQ-C (1 g/kg/d) group. The related cytokine/chemokine expression was also decreased in the early stages of infection in the mRNA level. Conclusion As a clinically applied Chinese prescription, our study shows that CQ-C has a wide range of effects on several influenza viruses. Moreover, CQ-C could play an important role in anti-influenza activity and anti-inflammation in vitro and in vivo. Thus, CQ-C may be a promising treatment option for influenza.
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Ti H. Phytochemical Profiles and their Anti-inflammatory Responses Against Influenza from Traditional Chinese Medicine or Herbs. Mini Rev Med Chem 2021; 20:2153-2164. [PMID: 32767941 DOI: 10.2174/1389557520666200807134921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 11/22/2022]
Abstract
Traditional Chinese medicine (TCM) or herbs are widely used in the prevention and treatment of viral infectious diseases. However, the underlying mechanisms of TCMs remain largely obscure due to complicated material basis and multi-target therapeutics. TCMs have been reported to display anti-influenza activity associated with immunoregulatory mechanisms by enhancing host antiinfluenza immune responses. Previous studies have helped us understand the direct harm caused by the virus itself. In this review, we have tried to summarize recent progress in TCM-based anti-influenza research on the indirect harmful immune responses caused by influenza viruses. In particular, the phytochemicals from TCMs responsible for molecular mechanisms of action belonging to different classes, including phenolic compounds, flavonoids, alkaloids and polysaccharides, have been identified and demonstrated. In addition, this review focuses on the pharmacological mechanism, e.g., inflammatory responses and the interferon (IFN) signaling pathway, which can provide a theoretical basis and approaches for TCM based anti-influenza treatment.
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Affiliation(s)
- Huihui Ti
- School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, China
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Puttaswamy H, Gowtham HG, Ojha MD, Yadav A, Choudhir G, Raguraman V, Kongkham B, Selvaraju K, Shareef S, Gehlot P, Ahamed F, Chauhan L. In silico studies evidenced the role of structurally diverse plant secondary metabolites in reducing SARS-CoV-2 pathogenesis. Sci Rep 2020; 10:20584. [PMID: 33239694 PMCID: PMC7689506 DOI: 10.1038/s41598-020-77602-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 11/04/2020] [Indexed: 12/23/2022] Open
Abstract
Plants are endowed with a large pool of structurally diverse small molecules known as secondary metabolites. The present study aims to virtually screen these plant secondary metabolites (PSM) for their possible anti-SARS-CoV-2 properties targeting four proteins/ enzymes which govern viral pathogenesis. Results of molecular docking with 4,704 ligands against four target proteins, and data analysis revealed a unique pattern of structurally similar PSM interacting with the target proteins. Among the top-ranked PSM which recorded lower binding energy (BE), > 50% were triterpenoids which interacted strongly with viral spike protein-receptor binding domain, > 32% molecules which showed better interaction with the active site of human transmembrane serine protease were belongs to flavonoids and their glycosides, > 16% of flavonol glycosides and > 16% anthocyanidins recorded lower BE against active site of viral main protease and > 13% flavonol glycoside strongly interacted with active site of viral RNA-dependent RNA polymerase. The primary concern about these PSM is their bioavailability. However, several PSM recorded higher bioavailability score and found fulfilling most of the drug-likeness characters as per Lipinski's rule (Coagulin K, Kamalachalcone C, Ginkgetin, Isoginkgetin, 3,3'-Biplumbagin, Chrysophanein, Aromoline, etc.). Natural occurrence, bio-transformation, bioavailability of selected PSM and their interaction with the target site of selected proteins were discussed in detail. Present study provides a platform for researchers to explore the possible use of selected PSM to prevent/ cure the COVID-19 by subjecting them for thorough in vitro and in vivo evaluation for the capabilities to interfering with the process of viral host cell recognition, entry and replication.
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Affiliation(s)
- Hariprasad Puttaswamy
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India.
| | | | - Monu Dinesh Ojha
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Ajay Yadav
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Gourav Choudhir
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Vasantharaja Raguraman
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Bhani Kongkham
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Koushalya Selvaraju
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Shazia Shareef
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Priyanka Gehlot
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Faiz Ahamed
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
| | - Leena Chauhan
- Centre for Rural Development and Technology, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India
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Zheng Y, Zhang X, Cao Y, Huang L. The exploration of neuraminidase inhibitory activity on Fallopia denticulata, an ethnic herb in China. Biomed Chromatogr 2020; 35:e5024. [PMID: 33169405 DOI: 10.1002/bmc.5024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/19/2020] [Accepted: 11/04/2020] [Indexed: 11/08/2022]
Abstract
This study was designed to explore the bioactive ingredients in the extracts of Fallopia denticulata (C.C. Huang) Holub, a medicinal plant grown in China, which exhibits the best neuraminidase (NA) inhibition activity. Three fractions of ethyl acetate, ethanol, and water were tested on NA inhibition assay, and the best one was conducted by ultra-performance liquid chromatography-time-of-flight mass spectrometry in the negative and positive modes to analyze the metabolic components. The results revealed the identification of the following 21 compounds: 3 organic acids, 11 flavonoids, 1 coumarin, and 6 others, such as β-daucosterol, gallic acid, and syringic acid, of which 12 compounds were discovered for the first time in F. denticulata. In addition, we used the molecular docking technique to support the anti-NA activity of each compound in the best extract. The results confirmed that the two better bioactive compounds were (-)-epicatechin gallate and (+)-catechin. Therefore, F. denticulata could be used as a potential material for new anti-influenza drugs.
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Affiliation(s)
- Yan Zheng
- Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi, China.,Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiang Zhang
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yu Cao
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Linfang Huang
- Key Laboratory of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Xiong Y, Li NX, Duan N, Liu B, Zhu H, Zhang C, Li L, Lu C, Huang L. Traditional Chinese Medicine in Treating Influenza: From Basic Science to Clinical Applications. Front Pharmacol 2020; 11:575803. [PMID: 33041821 PMCID: PMC7526665 DOI: 10.3389/fphar.2020.575803] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/14/2020] [Indexed: 12/11/2022] Open
Abstract
Influenza infection is a highly contagious, acute febrile respiratory disease caused by the influenza virus. Traditional Chinese Medicine (TCM) has dominated plenty of theoretical and practical approaches in the treatment of influenza. It is, therefore, important to highlight the effects of TCM in the clinical treatment of influenza and their impact on inhibiting the growth of this virus in laboratory experiments. We scrutinized existing evidence on whether TCM is effective in clinical applications. Moreover, we described the potential mechanisms of TCM against the influenza virus. Our findings provide analytical evidence that supports the effectiveness of TCM in treating influenza infections as well as their mechanisms against this virus.
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Affiliation(s)
- Yibai Xiong
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Na Xiao Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Naifang Duan
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bin Liu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hui Zhu
- China Academy of Chinese Medical Sciences, Beijing, China
| | - Chi Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Li Li
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Cheng Lu
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Luqi Huang
- China Academy of Chinese Medical Sciences, Beijing, China
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Bhuiyan FR, Howlader S, Raihan T, Hasan M. Plants Metabolites: Possibility of Natural Therapeutics Against the COVID-19 Pandemic. Front Med (Lausanne) 2020; 7:444. [PMID: 32850918 PMCID: PMC7427128 DOI: 10.3389/fmed.2020.00444] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/06/2020] [Indexed: 12/16/2022] Open
Abstract
COVID-19, a disease induced by SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus-2), has been the cause of a worldwide pandemic. Though extensive research works have been reported in recent days on the development of effective therapeutics against this global health crisis, there is still no approved therapy against SARS-CoV-2. In the present study, plant-synthesized secondary metabolites (PSMs) have been prioritized to make a review focusing on the efficacy of plant-originated therapeutics for the treatment of COVID-19. Plant metabolites are a source of countless medicinal compounds, while the diversity of multidimensional chemical structures has made them superior to treat serious diseases. Some have already been reported as promising alternative medicines and lead compounds for drug repurposing and discovery. The versatility of secondary metabolites may provide novel antibiotics to tackle MDR (Multi-Drug Resistant) microbes too. This review attempted to find out plant metabolites that have the therapeutic potential to treat a wide range of viral pathogens. The study includes the search of remedies belonging to plant families, susceptible viral candidates, antiviral assays, and the mode of therapeutic action; this attempt resulted in the collection of an enormous number of natural therapeutics that might be suggested for the treatment of COVID-19. About 219 plants from 83 families were found to have antiviral activity. Among them, 149 plants from 71 families were screened for the identification of the major plant secondary metabolites (PSMs) that might be effective for this pandemic. Our investigation revealed that the proposed plant metabolites can serve as potential anti- SARS-CoV-2 lead molecules for further optimization and drug development processes to combat COVID-19 and future pandemics caused by viruses. This review will stimulate further analysis by the scientific community and boost antiviral plant-based research followed by novel drug designing.
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Affiliation(s)
- Farhana Rumzum Bhuiyan
- Department of Botany, University of Chittagong, Chittagong, Bangladesh
- Laboratory of Biotechnology and Molecular Biology, Department of Botany, University of Chittagong, Chittagong, Bangladesh
| | - Sabbir Howlader
- Department of Applied Chemistry and Chemical Engineering, University of Chittagong, Chittagong, Bangladesh
| | - Topu Raihan
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Mahmudul Hasan
- Department of Pharmaceuticals and Industrial Biotechnology, Sylhet Agricultural University, Sylhet, Bangladesh
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Sun X, Zhang L, Cao Y, Li J, Atanasov AG, Huang L. Anti-neuraminidase activity of chemical constituents of Balanophora involucrata. Biomed Chromatogr 2020; 34:e4949. [PMID: 32678491 DOI: 10.1002/bmc.4949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 06/16/2020] [Accepted: 07/08/2020] [Indexed: 12/15/2022]
Abstract
Balanophora involucrata J. D. Hooker has been known to possess potential anti-inflammatory and antibacterial activities; however, its antiviral activity has not been evaluated so far. In order to find new neuraminidase inhibitors (NAIs), the neuraminidase (NA) inhibition activity of different B. involucrata extracts was evaluated. In this study, an in vitro NA inhibition assay was performed to identify which extract of B. involucrata exhibits (maximal) inhibitory activity against NA. Ultra high performance liquid chromatography/quadrupole time-of-flight-tandem mass spectroscopy (MS/MS) and molecular docking techniques were used to identify the specific compounds responsible for the anti-influenza activity of the extract, and to explore the potential natural NAIs. The ethyl acetate extract of B. involucrata exhibited significant inhibitory activity against NA with 50% inhibitory concentration (IC50 ) value of 159.5 μg/mL. Twenty compounds were identified according to the MS/MS spectra; among them two compounds (quercitrin and phloridzin) showed obvious inhibitory activity against NA, with IC50 of 311.76 and 347.32 μmol/L, respectively. This study suggested that B. involucrata can be a potential natural source of NAIs and may be useful in the fight against ferocious influenza viruses.
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Affiliation(s)
- Xiao Sun
- Key Research Laboratory of Traditional Chinese Medicine Resources Protection, Administration of Traditional Chinese Medicine, National administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Li Zhang
- College of Science, Sichuan Agriculture University, Ya'an, China
| | - Yu Cao
- Key Research Laboratory of Traditional Chinese Medicine Resources Protection, Administration of Traditional Chinese Medicine, National administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jinhua Li
- Key Research Laboratory of Traditional Chinese Medicine Resources Protection, Administration of Traditional Chinese Medicine, National administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Atanas G Atanasov
- Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Vienna, Austria.,Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzębiec, Poland
| | - Linfang Huang
- Key Research Laboratory of Traditional Chinese Medicine Resources Protection, Administration of Traditional Chinese Medicine, National administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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Zhang T, Lo CY, Xiao M, Cheng L, Pun Mok CK, Shaw PC. Anti-influenza virus phytochemicals from Radix Paeoniae Alba and characterization of their neuraminidase inhibitory activities. JOURNAL OF ETHNOPHARMACOLOGY 2020; 253:112671. [PMID: 32081739 DOI: 10.1016/j.jep.2020.112671] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/08/2020] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bai Shao (Radix Paeoniae Alba, BS), the root of Paeonia lactiflora Pall., in ancient China was used for Wen Bing (Warm Disease) treatment. Wen Bing has the symptoms of influenza. Ethanol extract of the root has recently been shown to possess anti-influenza activity. However, the active compounds have not yet been identified. AIM We showed that BS aqueous extract was potent in inhibiting influenza A virus in infected cells. We aimed to isolate the bioactive compounds and characterize the anti-influenza mechanism. MATERIALS AND METHODS Plaque reduction assay was performed for fractions isolated from BS. Hemagglutination inhibition assay and neuraminidase inhibition assay were performed to find the target protein. Molecular docking and reverse genetics were used to confirm the action site of gallic acid on the neuraminidase protein. RESULTS We identified three tannin compounds gallic acid (GA), methyl gallate (MG) and pentagalloylglucose (PGG) in BS aqueous extract that could inhibit the replication of influenza A virus in MDCK cells. While only PGG was found to inhibit the influenza virus-induced hemagglutination of chicken erythrocytes, all three compounds significantly reduced the activity of the neuraminidase. The results from molecular docking and reverse genetics showed that GA interacted with Arg152 of neuraminidase protein. CONCLUSION Three compounds GA, MG and PGG isolated from BS were found to inhibit influenza A virus in MDCK cells. GA interacts with amino acid Arg152 of the viral neuraminidase. Our study identified anti-influenza compounds of BS and demonstrated their antiviral mechanism, thus providing scientific evidence for using this herb for clinical treatment.
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Affiliation(s)
- Tianbo Zhang
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China
| | - Chun-Yeung Lo
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China
| | - Mengjie Xiao
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China
| | - Ling Cheng
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China
| | - Chris Ka Pun Mok
- HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong, China; State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510000, PR China
| | - Pang-Chui Shaw
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China; Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China; Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, China.
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12
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Li P, Du R, Wang Y, Hou X, Wang L, Zhao X, Zhan P, Liu X, Rong L, Cui Q. Identification of Chebulinic Acid and Chebulagic Acid as Novel Influenza Viral Neuraminidase Inhibitors. Front Microbiol 2020; 11:182. [PMID: 32256457 PMCID: PMC7093024 DOI: 10.3389/fmicb.2020.00182] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/24/2020] [Indexed: 11/23/2022] Open
Abstract
The influenza A virus (IAV) causes seasonal epidemics and occasional but devastating pandemics, which are of a major public health concern. Although several antiviral drugs are currently available, there is an urgent need to develop novel antiviral therapies with different mechanisms of action due to emergence of drug resistance. In this study, two related compounds, chebulagic acid (CHLA) and chebulinic acid (CHLI), were identified as novel inhibitors against IAV replication. A reporter virus-based infection assay demonstrated that CHLA and CHLI exhibit no inhibitory effect on IAV entry or RNA replication during the virus replication cycle. Results of viral release inhibition assay and neuraminidase (NA) inhibition assay indicated that CHLA and CHLI exert their inhibitory effect on the NA-mediated viral release. Moreover, oseltamivir-resistance mutation NA/H274Y of NA is susceptible to CHLA or CHLI, suggesting a different mechanism of action for CHLA and CHLI. In summary, CHLA and CHLI are promising new NA inhibitors that may be further developed as novel antivirals against IAVs.
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Affiliation(s)
- Ping Li
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ruikun Du
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Qingdao Academy of Chinese Medicinal Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
- Research Center, College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yanyan Wang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xuewen Hou
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lin Wang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiujuan Zhao
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Peng Zhan
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Xinyong Liu
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Lijun Rong
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Qinghua Cui
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Qingdao Academy of Chinese Medicinal Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
- Research Center, College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
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13
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Denaro M, Smeriglio A, Barreca D, De Francesco C, Occhiuto C, Milano G, Trombetta D. Antiviral activity of plants and their isolated bioactive compounds: An update. Phytother Res 2019; 34:742-768. [DOI: 10.1002/ptr.6575] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 10/13/2019] [Accepted: 11/14/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Marcella Denaro
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
| | - Antonella Smeriglio
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
| | - Davide Barreca
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
| | - Clara De Francesco
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
| | - Cristina Occhiuto
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
| | - Giada Milano
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
| | - Domenico Trombetta
- Department of Chemical, Biological, Pharmaceutical and Environmental SciencesUniversity of Messina Messina Italy
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14
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Li R, Zhang JF, Wu YZ, Li YC, Xia GY, Wang LY, Qiu BL, Ma M, Lin S. Structures and Biological Evaluation of Monoterpenoid Glycosides from the Roots of Paeonia lactiflora. JOURNAL OF NATURAL PRODUCTS 2018; 81:1252-1259. [PMID: 29741372 DOI: 10.1021/acs.jnatprod.8b00087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fractionation of an aqueous extract of the air-dried roots of a traditional Chinese medicinal plant, Paeonia lactiflora, yielded the new monoterpenoid glycosides 1-10. Their structures were assigned via spectroscopic techniques, and the absolute configurations of 1, 4-6, and 8 were verified via chemical methods, specific rotation, and electronic circular dichroism data. Compounds 1-4 are rare compared to the reported cage-like paeoniflorin derivatives; that is, they comprised two monoterpenoidal moieties. In the in vitro assay, compounds 5, 8, and 9 showed weak inhibitions against lipopolysaccharide-induced nitric oxide production in RAW264.7 macrophages, with IC50 values of 64.8, 60.1, and 97.5 μM, respectively.
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Affiliation(s)
- Rui 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 , People's Republic of China
| | - Jing-Fang 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 , People's Republic of China
| | - Yu-Zhuo Wu
- 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 , People's Republic of China
| | - Yan-Cheng 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 , People's Republic of China
| | - Gui-Yang Xia
- 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 , People's Republic of China
| | - Ling-Yan 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 , People's Republic of China
| | - Bo-Lin Qiu
- 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 , People's Republic of China
| | - Min Ma
- 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 , People's Republic of China
| | - Sheng Lin
- 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 , People's Republic of China
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15
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McKimm-Breschkin JL, Jiang S, Hui DS, Beigel JH, Govorkova EA, Lee N. Prevention and treatment of respiratory viral infections: Presentations on antivirals, traditional therapies and host-directed interventions at the 5th ISIRV Antiviral Group conference. Antiviral Res 2018; 149:118-142. [PMID: 29162476 PMCID: PMC7133686 DOI: 10.1016/j.antiviral.2017.11.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 12/17/2022]
Abstract
The International Society for Influenza and other Respiratory Virus Diseases held its 5th Antiviral Group (isirv-AVG) Conference in Shanghai, China, in conjunction with the Shanghai Public Health Center and Fudan University from 14-16 June 2017. The three-day programme encompassed presentations on some of the clinical features, management, immune responses and virology of respiratory infections, including influenza A(H1N1)pdm09 and A(H7N9) viruses, MERS-CoV, SARS-CoV, adenovirus Type 80, enterovirus D68, metapneumovirus and respiratory syncytial virus (RSV). Updates were presented on several therapeutics currently in clinical trials, including influenza polymerase inhibitors pimodivir/JNJ6362387, S033188, favipiravir, monoclonal antibodies MHAA45449A and VIS410, and host directed strategies for influenza including nitazoxanide, and polymerase ALS-008112 and fusion inhibitors AK0529, GS-5806 for RSV. Updates were also given on the use of the currently licensed neuraminidase inhibitors. Given the location in China, there were also presentations on the use of Traditional Chinese Medicines. Following on from the previous conference, there were ongoing discussions on appropriate endpoints for severe influenza in clinical trials from regulators and clinicians, an issue which remains unresolved. The aim of this conference summary is to provide information for not only conference participants, but a detailed referenced review of the current status of clinical trials, and pre-clinical development of therapeutics and vaccines for influenza and other respiratory diseases for a broader audience.
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Affiliation(s)
| | - Shibo Jiang
- College of Basic Medical Sciences, Fudan University, Shanghai, China; Lindsley F. Kimball Research Institute, New York Blood Center, NY, USA
| | - David S Hui
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - John H Beigel
- Leidos Biomedical Research, Inc., Support to National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Elena A Govorkova
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, USA
| | - Nelson Lee
- Faculty of Medicine and Dentistry, University of Alberta, Canada
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16
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Neuraminidase Inhibitory Activity and Constituent Characterization of Fagopyrum dibotrys. Molecules 2017; 22:molecules22111998. [PMID: 29156573 PMCID: PMC6150301 DOI: 10.3390/molecules22111998] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 11/08/2017] [Accepted: 11/15/2017] [Indexed: 12/03/2022] Open
Abstract
This study aimed to identify a new biological activity of the widely distributed species Fagopyrum dibotrys. Four F. dibotrys extracts (ethyl acetate (EA), petroleum ether (P), ethanol (E), and water (W)) were explored for their anti-neuraminidase (NA) activity. A total of 32 compounds were identified using UHPLC-Q-Exactive Orbitrap HRMS in the EA extract, which had the best NA inhibitory effects. We used the docking data for supporting compounds’ anti-neuraminidase activity. Among them, five compounds including one flavonoid, three organic acids, and one glucoside were discovered for the first time in F. dibotrys. Docking studies and NA activity assay revealed the remarkable NA inhibitory activity of eight components in EA extract, especially rutin, hesperidin, procyanidin B2, and quercitrin. Therefore, F. dibotrys could be used to develop anti-influenza drugs.
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17
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Zhao DD, Jiang LL, Li HY, Yan PF, Zhang YL. Chemical Components and Pharmacological Activities of Terpene Natural Products from the Genus Paeonia. Molecules 2016; 21:molecules21101362. [PMID: 27754383 PMCID: PMC6273841 DOI: 10.3390/molecules21101362] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 10/03/2016] [Accepted: 10/08/2016] [Indexed: 12/20/2022] Open
Abstract
Paeonia is the single genus of ca. 33 known species in the family Paeoniaceae, found in Asia, Europe and Western North America. Up to now, more than 180 compounds have been isolated from nine species of the genus Paeonia, including terpenes, phenols, flavonoids, essential oil and tannins. Terpenes, the most abundant naturally occurring compounds, which accounted for about 57% and occurred in almost every species, are responsible for the observed in vivo and in vitro biological activities. This paper aims to give a comprehensive overview of the recent phytochemical and pharmacological knowledge of the terpenes from Paeonia plants, and enlighten further drug discovery research.
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Affiliation(s)
- Dan-Dan Zhao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, 74 Xue-Fu Road, Nan-Gang District, Harbin 150080, China.
- Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
- Heilongjiang University Hospital, Harbin 150080, China.
| | - Li-Li Jiang
- Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
| | - Hong-Yi Li
- Heilongjiang University Hospital, Harbin 150080, China.
| | - Peng-Fei Yan
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, 74 Xue-Fu Road, Nan-Gang District, Harbin 150080, China.
| | - Yan-Long Zhang
- Key Laboratory of Molecular Biology of Heilongjiang Province, College of Life Sciences, Heilongjiang University, Harbin 150080, China.
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