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Mandalari G, Pennisi R, Gervasi T, Sciortino MT. Pistacia vera L. as natural source against antimicrobial and antiviral resistance. Front Microbiol 2024; 15:1396514. [PMID: 39011148 PMCID: PMC11246903 DOI: 10.3389/fmicb.2024.1396514] [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: 03/05/2024] [Accepted: 06/10/2024] [Indexed: 07/17/2024] Open
Abstract
Increased global research is focused on the development of novel therapeutics to combat antimicrobial and antiviral resistance. Pistachio nuts represent a good source of protein, fiber, monounsaturated fatty acids, minerals, vitamins, and phytochemicals (carotenoids, phenolic acids, flavonoids and anthocyanins). The phytochemicals found in pistachios are structurally diverse compounds with antimicrobial and antiviral potential, demonstrated as individual compounds, extracts and complexed into nanoparticles. Synergistic effects have also been reported in combination with existing drugs. Here we report an overview of the antimicrobial and antiviral potential of pistachio nuts: studies show that Gram-positive bacterial strains, such as Staphylococcus aureus, are the most susceptible amongst bacteria, whereas antiviral effect has been reported against herpes simplex virus 1 (HSV-1). Amongst the known pistachio compounds, zeaxanthin has been shown to affect both HSV-1 attachment penetration of human cells and viral DNA synthesis. These data suggest that pistachio extracts and derivatives could be used for the topical treatment of S. aureus skin infections and ocular herpes infections.
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Affiliation(s)
- Giuseppina Mandalari
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, Messina, Italy
| | - Rosamaria Pennisi
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, Messina, Italy
| | - Teresa Gervasi
- Department of Biomedical and Dental Science and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Maria Teresa Sciortino
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, Messina, Italy
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Allemailem KS, Almatroudi A, Alharbi HOA, AlSuhaymi N, Alsugoor MH, Aldakheel FM, Khan AA, Rahmani AH. Apigenin: A Bioflavonoid with a Promising Role in Disease Prevention and Treatment. Biomedicines 2024; 12:1353. [PMID: 38927560 PMCID: PMC11202028 DOI: 10.3390/biomedicines12061353] [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: 05/09/2024] [Revised: 06/05/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Apigenin is a powerful flavone compound found in numerous fruits and vegetables, and it offers numerous health-promoting benefits. Many studies have evidenced that this compound has a potential role as an anti-inflammatory and antioxidant compound, making it a promising candidate for reducing the risk of pathogenesis. It has also been found to positively affect various systems in the body, such as the respiratory, digestive, immune, and reproductive systems. Apigenin is effective in treating liver, lung, heart, kidney, neurological diseases, diabetes, and maintaining good oral and skin health. Multiple studies have reported that this compound is capable of suppressing various types of cancer through the induction of apoptosis and cell-cycle arrest, suppressing cell migration and invasion, reduction of inflammation, and inhibiting angiogenesis. When used in combination with other drugs, apigenin increases their efficacy, reduces the risk of side effects, and improves the response to chemotherapy. This review broadly analyzes apigenin's potential in disease management by modulating various biological activities. In addition, this review also described apigenin's interaction with other compounds or drugs and the potential role of nanoformulation in different pathogeneses. Further extensive research is needed to explore the mechanism of action, safety, and efficacy of this compound in disease prevention and treatment.
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Affiliation(s)
- Khaled S. Allemailem
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia; (K.S.A.); (A.A.); (H.O.A.A.)
| | - Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia; (K.S.A.); (A.A.); (H.O.A.A.)
| | - Hajed Obaid A. Alharbi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia; (K.S.A.); (A.A.); (H.O.A.A.)
| | - Naif AlSuhaymi
- Department of Emergency Medical Services, Faculty of Health Sciences, AlQunfudah, Umm Al-Qura University, Makkah 21912, Saudi Arabia (M.H.A.)
| | - Mahdi H. Alsugoor
- Department of Emergency Medical Services, Faculty of Health Sciences, AlQunfudah, Umm Al-Qura University, Makkah 21912, Saudi Arabia (M.H.A.)
| | - Fahad M. Aldakheel
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Amjad Ali Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 51452, Saudi Arabia; (K.S.A.); (A.A.); (H.O.A.A.)
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Wang S, Pang Z, Fan H, Tong Y. Advances in anti-EV-A71 drug development research. J Adv Res 2024; 56:137-156. [PMID: 37001813 PMCID: PMC10834817 DOI: 10.1016/j.jare.2023.03.007] [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: 01/17/2023] [Revised: 03/05/2023] [Accepted: 03/21/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Enterovirus A71 (EV-A71) is capable of causing hand, foot and mouth disease (HFMD), which may lead to neurological sequelae and even death. As EV-A71 is resistant to environmental changes and mutates easily, there is still a lack of effective treatments or globally available vaccines. AIM OF REVIEW For more than 50 years since the HFMD epidemic, related drug research has been conducted. Progress in this area can promote the further application of existing potential drugs and develop more efficient and safe antiviral drugs, and provide useful reference for protecting the younger generation and maintaining public health security. KEY SCIENTIFIC CONCEPTS OF REVIEW At present, researchers have identified hundreds of EV-A71 inhibitors based on screening repurposed drugs, targeted structural design, and rational modification of previously effective drugs as the main development strategies. This review systematically introduces the current potential drugs to inhibit EV-A71 infection, including viral inhibitors targeting key sites such as the viral capsid, RNA-dependent RNA polymerase (RdRp), 2C protein, internal ribosome entry site (IRES), 3C proteinase (3Cpro), and 2A proteinase (2Apro), starting from each stage of the viral life cycle. Meanwhile, the progress of host-targeting antiviral drugs and their development are summarized in terms of regulating host immunity, inhibiting autophagy or apoptosis, and regulating the cellular redox environment. In addition, the current clinical methods for the prevention and treatment of HFMD are summarized and discussed with the aim of providing support and recommendations for the treatment of enterovirus infections including EV-A71.
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Affiliation(s)
- Shuqi Wang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Zehan Pang
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Huahao Fan
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China.
| | - Yigang Tong
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China; Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China.
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Wei Y, Liu H, Hu D, He Q, Yao C, Li H, Hu K, Wang J. Recent Advances in Enterovirus A71 Infection and Antiviral Agents. J Transl Med 2024; 104:100298. [PMID: 38008182 DOI: 10.1016/j.labinv.2023.100298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/29/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023] Open
Abstract
Enterovirus A71 (EV-A71) is one of the major causative agents of hand, foot, and mouth disease (HFMD) that majorly affects children. Most of the time, HFMD is a mild disease but can progress to severe complications, such as meningitis, brain stem encephalitis, acute flaccid paralysis, and even death. HFMD caused by EV-A71 has emerged as an acutely infectious disease of highly pathogenic potential in the Asia-Pacific region. In this review, we introduced the properties and life cycle of EV-A71, and the pathogenesis and the pathophysiology of EV-A71 infection, including tissue tropism and host range of virus infection, the diseases caused by the virus, as well as the genes and host cell immune mechanisms of major diseases caused by enterovirus 71 (EV-A71) infection, such as encephalitis and neurologic pulmonary edema. At the same time, clinicopathologic characteristics of EV-A71 infection were introduced. There is currently no specific medication for EV-A71 infection, highlighting the urgency and significance of developing suitable anti-EV-A71 agents. This overview also summarizes the targets of existing anti-EV-A71 agents, including virus entry, translation, polyprotein processing, replication, assembly and release; interferons; interleukins; the mitogen-activated protein kinase, phosphatidylinositol 3-kinase, and protein kinase B signaling pathways; the oxidative stress pathway; the ubiquitin-proteasome system; and so on. Furthermore, it overviews the effects of natural products, monoclonal antibodies, and RNA interference against EV-A71. It also discusses issues limiting the research of antiviral drugs. This review is a systematic and comprehensive summary of the mechanism and pathological characteristics of EV-A71 infection, the latest progress of existing anti-EV-A71 agents. It would provide better understanding and guidance for the research and application of EV-A71 infection and antiviral inhibitors.
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Affiliation(s)
- Yanhong Wei
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China
| | - Huihui Liu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China
| | - Da Hu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China
| | - Qun He
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China
| | - Chenguang Yao
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China
| | - Hanluo Li
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China
| | - Kanghong Hu
- National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Sino-German Biomedical Center, Hubei University of Technology, Wuhan, China.
| | - Jun Wang
- Department of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Wang H, Chen F, Wang S, Li Y, Liu T, Li Y, Deng H, Dong J, Pang J, Song D, Zhang D, Yu J, Wang Y. Evaluation and mechanism study of Pien Tze Huang against EV-A71 infection. Front Pharmacol 2023; 14:1251731. [PMID: 37954857 PMCID: PMC10637388 DOI: 10.3389/fphar.2023.1251731] [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: 07/02/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023] Open
Abstract
Hand, foot, and mouth disease (HFMD) caused by enterovirus A71 (EV-A71) infection, currently lacks specific preventive and therapeutic interventions. Here, we demonstrated that Pien Tze Huang (PZH) could dose-dependently inhibit EV-A71 replication at the cellular level, resulting in significant reductions in EV-A71 virus protein 1 (VP1) expression and viral yields in Vero and human rhabdomyosarcoma cells. More importantly, we confirmed that PZH could protect mice from EV-A71 infection for the first time, with Ribavirin serving as a positive control. PZH treatment reduced EV-A71 VP1 protein expression, viral yields in infected muscles, and improved muscle pathology. Additionally, we conducted a preliminary mechanism study using quantitative proteomics. The results suggested that the suppression of the PI3K/AKT/mTOR and NF-κB signaling pathways may contribute to the anti-EV-A71 activity of PZH. These findings provide strong evidence supporting the potential therapeutic application of PZH for EV-A71 infection management.
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Affiliation(s)
- Huiqiang Wang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fenbei Chen
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shicong Wang
- Fujian Pien Tze Huang Enterprise Key Laboratory of Natural Medicine Research and Development, Zhangzhou, China
| | - Yuhuan Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ting Liu
- Institute for Drug Control, National Institute for Food and Drug Control, Beijing, China
| | - Yinghong Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongbin Deng
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jingwen Dong
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Pang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Danqing Song
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dousheng Zhang
- Institute for Drug Control, National Institute for Food and Drug Control, Beijing, China
| | - Juan Yu
- Fujian Pien Tze Huang Enterprise Key Laboratory of Natural Medicine Research and Development, Zhangzhou, China
| | - Yanxiang Wang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Lai J, Li Z, Pan L, Huang Y, Zhou Z, Ma C, Guo J, Xu L. Research progress on pathogenic and therapeutic mechanisms of Enterovirus A71. Arch Virol 2023; 168:260. [PMID: 37773227 DOI: 10.1007/s00705-023-05882-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/12/2023] [Indexed: 10/01/2023]
Abstract
In recent years, enterovirus A71 (EV-A71) infection has become a major global public health problem, especially for infants and young children. The results of epidemiological research show that EV-A71 infection can cause acute hand, foot, and mouth disease (HFMD) and complications of the nervous system in severe cases, including aseptic pediatric meningoencephalitis, acute flaccid paralysis, and even death. Many studies have demonstrated that EV-A71 infection may trigger a variety of intercellular and intracellular signaling pathways, which are interconnected to form a network that leads to the innate immune response, immune escape, inflammation, and apoptosis in the host. This article aims to provide an overview of the possible mechanisms underlying infection, signaling pathway activation, the immune response, immune evasion, apoptosis, and the inflammatory response caused by EV-A71 infection and an overview of potential therapeutic strategies against EV-A71 infection to better understand the pathogenesis of EV-A71 and to aid in the development of antiviral drugs and vaccines.
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Affiliation(s)
- Jianmei Lai
- Academy of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Zhishan Li
- Academy of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Lixin Pan
- The First People's Hospital of Foshan, Foshan, China
| | - Yunxia Huang
- The Sixth Clinical College, Guangzhou Medical University, Guangzhou, China
| | - Zifei Zhou
- Academy of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Chunhong Ma
- Academy of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Jiachun Guo
- Academy of Pediatrics, Guangzhou Medical University, Guangzhou, China
| | - Lingqing Xu
- Qingyuan People's Hospital, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China.
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Sangeetha Vijayan P, Xavier J, Valappil MP. A review of immune modulators and immunotherapy in infectious diseases. Mol Cell Biochem 2023:10.1007/s11010-023-04825-w. [PMID: 37682390 DOI: 10.1007/s11010-023-04825-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/05/2023] [Indexed: 09/09/2023]
Abstract
The human immune system responds to harmful foreign invaders frequently encountered by the body and employs defense mechanisms to counteract such assaults. Various exogenous and endogenous factors play a prominent role in maintaining the balanced functioning of the immune system, which can result in immune suppression or immune stimulation. With the advent of different immune-modulatory agents, immune responses can be modulated or regulated to control infections and other health effects. Literature provides evidence on various immunomodulators from different sources and their role in modulating immune responses. Due to the limited efficacy of current drugs and the rise in drug resistance, there is a growing need for new therapies for infectious diseases. In this review, we aim to provide a comprehensive overview of different immune-modulating agents and immune therapies specifically focused on viral infectious diseases.
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Affiliation(s)
- P Sangeetha Vijayan
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology [Govt. of India], Thiruvananthapuram, 695 012, Kerala, India
| | - Joseph Xavier
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology [Govt. of India], Thiruvananthapuram, 695 012, Kerala, India
| | - Mohanan Parayanthala Valappil
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology [Govt. of India], Thiruvananthapuram, 695 012, Kerala, India.
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Geana EI, Ciucure CT, Tamaian R, Marinas IC, Gaboreanu DM, Stan M, Chitescu CL. Antioxidant and Wound Healing Bioactive Potential of Extracts Obtained from Bark and Needles of Softwood Species. Antioxidants (Basel) 2023; 12:1383. [PMID: 37507922 PMCID: PMC10376860 DOI: 10.3390/antiox12071383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Interest in the extraction of phytochemical bioactive compounds, especially polyphenols from biomass, has recently increased due to their valuable biological potential as natural sources of antioxidants, which could be used in a wide range of applications, from foods and pharmaceuticals to green polymers and bio-based materials. The present research study aimed to provide a comprehensive chemical characterization of the phytochemical composition of forest biomass (bark and needles) of softwood species (Picea abies L., H. Karst., and Abies alba Mill.) and to investigate their in vitro antioxidant and antimicrobial activities to assess their potential in treating and healing infected chronic wounds. The DPPH radical-scavenging method and P-LD were used for a mechanistic explanation of the biomolecular effects of the investigated bioactive compounds. (+)-Catechin, epicatechin, rutin, myricetin, 4 hydroxybenzoic and p-cumaric acids, kaempherol, and apigenin were the main quantified polyphenols in coniferous biomass (in quantities around 100 µg/g). Also, numerous phenolic acids, flavonoids, stilbenes, terpenes, lignans, secoiridoids, and indanes with antioxidant, antimicrobial, anti-inflammatory, antihemolytic, and anti-carcinogenic potential were identified. The Abies alba needle extract was more toxic to microbial strains than the eukaryotic cells that provide its active wound healing principles. In this context, developing industrial upscaling strategies is imperative for the long-term success of biorefineries and incorporating them as part of a circular bio-economy.
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Affiliation(s)
- Elisabeta-Irina Geana
- National Research and Development Institute for Cryogenics and Isotopic Technologies, 240050 Ramnicu Valcea, Romania;
| | - Corina Teodora Ciucure
- National Research and Development Institute for Cryogenics and Isotopic Technologies, 240050 Ramnicu Valcea, Romania;
| | - Radu Tamaian
- National Research and Development Institute for Cryogenics and Isotopic Technologies, 240050 Ramnicu Valcea, Romania;
| | - Ioana Cristina Marinas
- Department of Microbiology and Biochemistry, Research Institute of the University of Bucharest-ICUB, 050567 Bucharest, Romania; (D.M.G.); (M.S.)
| | - Diana Mădălina Gaboreanu
- Department of Microbiology and Biochemistry, Research Institute of the University of Bucharest-ICUB, 050567 Bucharest, Romania; (D.M.G.); (M.S.)
- National Institute of Research and Development for Biological Sciences, 060031 Bucharest, Romania
| | - Miruna Stan
- Department of Microbiology and Biochemistry, Research Institute of the University of Bucharest-ICUB, 050567 Bucharest, Romania; (D.M.G.); (M.S.)
| | - Carmen Lidia Chitescu
- Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania;
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Ponticelli M, Bellone ML, Parisi V, Iannuzzi A, Braca A, de Tommasi N, Russo D, Sileo A, Quaranta P, Freer G, Pistello M, Milella L. Specialized metabolites from plants as a source of new multi-target antiviral drugs: a systematic review. PHYTOCHEMISTRY REVIEWS : PROCEEDINGS OF THE PHYTOCHEMICAL SOCIETY OF EUROPE 2023; 22:1-79. [PMID: 37359711 PMCID: PMC10008214 DOI: 10.1007/s11101-023-09855-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 01/30/2023] [Indexed: 06/28/2023]
Abstract
Viral infections have always been the main global health challenge, as several potentially lethal viruses, including the hepatitis virus, herpes virus, and influenza virus, have affected human health for decades. Unfortunately, most licensed antiviral drugs are characterized by many adverse reactions and, in the long-term therapy, also develop viral resistance; for these reasons, researchers have focused their attention on investigating potential antiviral molecules from plants. Natural resources indeed offer a variety of specialized therapeutic metabolites that have been demonstrated to inhibit viral entry into the host cells and replication through the regulation of viral absorption, cell receptor binding, and competition for the activation of intracellular signaling pathways. Many active phytochemicals, including flavonoids, lignans, terpenoids, coumarins, saponins, alkaloids, etc., have been identified as potential candidates for preventing and treating viral infections. Using a systematic approach, this review summarises the knowledge obtained to date on the in vivo antiviral activity of specialized metabolites extracted from plant matrices by focusing on their mechanism of action.
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Affiliation(s)
- Maria Ponticelli
- Department of Science, University of Basilicata, Viale Dell’ateneo Lucano 10, 85100 Potenza, Italy
| | - Maria Laura Bellone
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
- Ph.D. Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Valentina Parisi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
- Ph.D. Program in Drug Discovery and Development, Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Annamaria Iannuzzi
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
- Retrovirus Center, Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Alessandra Braca
- Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
- Retrovirus Center, Virology Section, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Nunziatina de Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Daniela Russo
- Department of Science, University of Basilicata, Viale Dell’ateneo Lucano 10, 85100 Potenza, Italy
| | - Annalisa Sileo
- Department of Science, University of Basilicata, Viale Dell’ateneo Lucano 10, 85100 Potenza, Italy
| | | | - Giulia Freer
- Virology Unit, Pisa University Hospital, Pisa, Italy
| | | | - Luigi Milella
- Department of Science, University of Basilicata, Viale Dell’ateneo Lucano 10, 85100 Potenza, Italy
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Li Z, Ji W, Chen S, Duan G, Jin Y. Hand, Foot, and Mouth Disease Challenges and Its Antiviral Therapeutics. Vaccines (Basel) 2023; 11:vaccines11030571. [PMID: 36992155 DOI: 10.3390/vaccines11030571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 03/06/2023] Open
Abstract
Hand, Foot, and Mouth Disease (HFMD) is an infectious disease caused by enteroviruses (EVs) and is extremely contagious and prevalent among infants and children under 5 years old [...]
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Affiliation(s)
- Zijie Li
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Wangquan Ji
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Shuaiyin Chen
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Guangcai Duan
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
- Henan Key Laboratory of Molecular Medicine, Zhengzhou University, Zhengzhou 450001, China
| | - Yuefei Jin
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
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11
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Antiviral Activity of Luteolin against Pseudorabies Virus In Vitro and In Vivo. Animals (Basel) 2023; 13:ani13040761. [PMID: 36830548 PMCID: PMC9952634 DOI: 10.3390/ani13040761] [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: 01/16/2023] [Revised: 02/12/2023] [Accepted: 02/19/2023] [Indexed: 02/22/2023] Open
Abstract
Pseudorabies virus (PRV) can cause acute swine disease leading to economic losses worldwide and is a potential causative agent of viral encephalitis in humans. Although effective vaccines are available, an increasing number of variants have emerged in China, and identifying effective antiviral agents against PRV to prevent latent infection is essential. In this study, we assessed the antiviral activity of luteolin against PRV in vitro and in vivo. Luteolin was found to significantly inhibit PRV at a noncytotoxic concentration (70 μM), with an IC50 of 26.24 μM and a selectivity index of 5.64. Luteolin inhibited the virus at the replication stage and decreased the expression of viral mRNA and gB protein. Luteolin reduced the apoptosis of PRV-infected cells, improved the survival rate of mice after lethal challenge, reduced the viral loads in the liver, kidney, heart, lung, and brain, reduced brain lesions, and slowed inflammation and oxidation reactions. Our results showed that luteolin has promise as a new alternative antiviral drug for PRV infection.
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Thomas SD, Jha NK, Jha SK, Sadek B, Ojha S. Pharmacological and Molecular Insight on the Cardioprotective Role of Apigenin. Nutrients 2023; 15:nu15020385. [PMID: 36678254 PMCID: PMC9866972 DOI: 10.3390/nu15020385] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 01/15/2023] Open
Abstract
Apigenin is a naturally occurring dietary flavonoid found abundantly in fruits and vegetables. It possesses a wide range of biological properties that exert antioxidant, anti-inflammatory, anticancer, and antibacterial effects. These effects have been reported to be beneficial in the treatment of atherosclerosis, stroke, hypertension, ischemia/reperfusion-induced myocardial injury, and diabetic cardiomyopathy, and provide protection against drug-induced cardiotoxicity. These potential therapeutic effects advocate the exploration of the cardioprotective actions of apigenin. This review focuses on apigenin, and the possible pharmacological mechanisms involved in the protection against cardiovascular diseases. We further discuss its therapeutic uses and highlight its potential applications in the treatment of various cardiovascular disorders. Apigenin displays encouraging results, which may have implications in the development of novel strategies for the treatment of cardiovascular diseases. With the commercial availability of apigenin as a dietary supplement, the outcomes of preclinical studies may provide the investigational basis for future translational strategies evaluating the potential of apigenin in the treatment of cardiovascular disorders. Further preclinical and clinical investigations are required to characterize the safety and efficacy of apigenin and establish it as a nutraceutical as well as a therapeutic agent to be used alone or as an adjuvant with current drugs.
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Affiliation(s)
- Shilu Deepa Thomas
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida 201310, Uttar Pradesh, India
- Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun 248007, Uttarakhand, India
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida 201310, Uttar Pradesh, India
- Department of Biotechnology, School of Applied & Life Sciences (SALS), Uttaranchal University, Dehradun 248007, Uttarakhand, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali 140413, Punjab, India
| | - Bassem Sadek
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (B.S.); (S.O.)
| | - Shreesh Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (B.S.); (S.O.)
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13
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Wen SY, Wei BY, Ma JQ, Wang L, Chen YY. Phytochemicals, Biological Activities, Molecular Mechanisms, and Future Prospects of Plantago asiatica L. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:143-173. [PMID: 36545763 DOI: 10.1021/acs.jafc.2c07735] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Plantago asiatica L. has been used as a vegetable and nutritious food in Asia for thousands of years. According to recent phytochemical and pharmacological research, the active compositions of the plant contribute to various health benefits, such as antioxidant, anti-inflammatory, antibacterial, antiviral, and anticancer. This article reviews the 87 components of the plant and their structures, as well as their biological activities and molecular research progress, in detail. This review provides valuable reference material for further study, production, and application of P. asiatica, as well as its components in functional foods and therapeutic agents.
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Affiliation(s)
- Shi-Yuan Wen
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030000, China
| | - Bing-Yan Wei
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030000, China
| | - Jie-Qiong Ma
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030000, China
| | - Li Wang
- College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030000, China
| | - Yan-Yan Chen
- School of Medicine, Jiangsu University, Zhenjiang 212013, China
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Bhattarai K, Holcik M. Diverse roles of heterogeneous nuclear ribonucleoproteins in viral life cycle. FRONTIERS IN VIROLOGY 2022. [DOI: 10.3389/fviro.2022.1044652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Understanding the host-virus interactions helps to decipher the viral replication strategies and pathogenesis. Viruses have limited genetic content and rely significantly on their host cell to establish a successful infection. Viruses depend on the host for a broad spectrum of cellular RNA-binding proteins (RBPs) throughout their life cycle. One of the major RBP families is the heterogeneous nuclear ribonucleoproteins (hnRNPs) family. hnRNPs are typically localized in the nucleus, where they are forming complexes with pre-mRNAs and contribute to many aspects of nucleic acid metabolism. hnRNPs contain RNA binding motifs and frequently function as RNA chaperones involved in pre-mRNA processing, RNA splicing, and export. Many hnRNPs shuttle between the nucleus and the cytoplasm and influence cytoplasmic processes such as mRNA stability, localization, and translation. The interactions between the hnRNPs and viral components are well-known. They are critical for processing viral nucleic acids and proteins and, therefore, impact the success of the viral infection. This review discusses the molecular mechanisms by which hnRNPs interact with and regulate each stage of the viral life cycle, such as replication, splicing, translation, and assembly of virus progeny. In addition, we expand on the role of hnRNPs in the antiviral response and as potential targets for antiviral drug research and development.
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Ellagic Acid as a Potential Inhibitor against the Nonstructural Protein NS3 Helicase of Zika Virus: A Molecular Modelling Study. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2044577. [PMID: 36046457 PMCID: PMC9420600 DOI: 10.1155/2022/2044577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/27/2022] [Accepted: 08/01/2022] [Indexed: 11/17/2022]
Abstract
Zika virus is a member of the Flaviviridae family and genus Flavivirus, which has a phylogenetic relationship with spondweni virus. It spreads to humans through a mosquito bite. To identify potential inhibitors for the Zika virus with biosafety, we selected natural antiviral compounds isolated from plant sources and screened against NS3 helicase of the Zika virus. The enzymatic activity of the NS3 helicase is associated with the C-terminal region and is concerned with RNA synthesis and genome replication. It serves as a crucial target for the Zika virus. We carried out molecular docking for the target NS3 helicase against the selected 25 phytochemicals using AutoDock Vina software. Among the 25 plant compounds, we identified NS3 helicase-ellagic acid (-9.9 kcal/mol), NS3 helicase-hypericin (-9.8 kcal/mol), and NS3 helicase-pentagalloylglucose (-9.5 kcal/mol) as the best binding affinity compounds based on their binding energies. To understand the stability of these complexes, molecular dynamic simulations were executed and the trajectory analysis exposed that the NS3 helicase-ellagic acid complex possesses greater stability than the other two complexes such as NS3 helicase-hypericin and NS3 helicase-pentagalloylglucose. The ADMET property prediction of these compounds resulted in nontoxicity and noncarcinogenicity.
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Exploring the phytochemicals of Platycodon grandiflorus for TMPRSS2 inhibition in the search for SARS-CoV-2 entry inhibitors. JOURNAL OF KING SAUD UNIVERSITY - SCIENCE 2022; 34:102155. [PMID: 35702062 PMCID: PMC9181276 DOI: 10.1016/j.jksus.2022.102155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/29/2022] [Accepted: 06/02/2022] [Indexed: 11/29/2022]
Abstract
Platycodon grandiflorus (Jacq.) A. DC. (Campanulaceae) is commonly known as a balloon flower whose rhizomes have been widely utilized in traditional Chinese medicine (TCM) and in various Japanese prescriptions for the treatment of respiratory diseases, diabetes, and inflammatory disorders. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19) global pandemic requires priming of the virus's spike (S) protein by cleavage of the S proteins by a multi-domain type II transmembrane serine protease, transmembrane protease serine 2 (TMPRSS2) to gain entry into the host cell. The current research aims at the screening of active phytocompounds of P. grandiflorus as potential inhibitors of cellular TMPRSS2 using molecular docking and molecular dynamics simulations approach. In silico toxicity analyses show that out of a total of 34 phytocompounds selected for the study, 12 compounds obey Lipinski’s rule of five and have favourable pharmacokinetic properties. The top three lead molecules identified here were Apigenin, Luteolin and Ferulic acid which exhibited binding energies of −7.47 kcal/mol, −6.8 kcal/mol and −6.62 kcal/mol respectively with corresponding inhibition constants of 3.33 µM, 10.39 µM and 13.95 µM. The complexes between the lead molecules and the receptor were held by hydrogen bond interactions with key residues such as Gly383, Gly385, Glu389, Lys390, Asp435, Ser436, Ser441, Cys465 and Lys467, and hydrophobic interactions with surrounding residues. The stability of the protein–ligand complexes was evaluated during 100 ns molecular dynamics (MD) simulation by analysing key geometric properties such as RMSD, RMSF, radius of gyration, total solvent accessible surface area and the number of hydrogen bonds. The binding free energies analysis using MD simulations revealed that the compounds and TMPRSS2 have favourable thermodynamic interactions, which are primarily driven by van der Waals forces. As a result, the selected bioactive phytochemicals from P. grandiflorus that target the cellular TMPRSS2 could offer an alternative treatment option against SARS-CoV-2 infections.
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Pharmacological Properties of 4′, 5, 7-Trihydroxyflavone (Apigenin) and Its Impact on Cell Signaling Pathways. Molecules 2022; 27:molecules27134304. [PMID: 35807549 PMCID: PMC9267958 DOI: 10.3390/molecules27134304] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 12/04/2022] Open
Abstract
Plant bioactive compounds, particularly apigenin, have therapeutic potential and functional activities that aid in the prevention of infectious diseases in many mammalian bodies and promote tumor growth inhibition. Apigenin is a flavonoid with low toxicities and numerous bioactive properties due to which it has been considered as a traditional medicine for decades. Apigenin shows synergistic effects in combined treatment with sorafenib in the HepG2 human cell line (HCC) in less time and statistically reduces the viability of tumor cells, migration, gene expression and apoptosis. The combination of anti-cancerous drugs with apigenin has shown health promoting potential against various cancers. It can prevent cell mobility, maintain the cell cycle and stimulate the immune system. Apigenin also suppresses mTOR activity and raises the UVB-induced phagocytosis and reduces the cancerous cell proliferation and growth. It also has a high safety threshold, and active (anti-cancer) doses can be gained by consuming a vegetable and apigenin rich diet. Apigenin also boosted autophagosome formation, decreased cell proliferation and activated autophagy by preventing the activity of the PI3K pathway, specifically in HepG2 cells. This paper provides an updated overview of apigenin’s beneficial anti-inflammatory, antibacterial, antiviral, and anticancer effects, making it a step in the right direction for therapeutics. This study also critically analyzed the effect of apigenin on cancer cell signaling pathways including the PI3K/AKT/MTOR, JAK/STAT, NF-κB and ERK/MAPK pathways.
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Prasetyo WE, Purnomo H, Sadrini M, Wibowo FR, Firdaus M, Kusumaningsih T. Identification of potential bioactive natural compounds from Indonesian medicinal plants against 3-chymotrypsin-like protease (3CL pro) of SARS-CoV-2: molecular docking, ADME/T, molecular dynamic simulations, and DFT analysis. J Biomol Struct Dyn 2022:1-18. [DOI: 10.1080/07391102.2022.2068071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wahyu Eko Prasetyo
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia
| | - Heri Purnomo
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia
| | - Miracle Sadrini
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia
| | - Fajar Rakhman Wibowo
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia
| | - Maulidan Firdaus
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia
| | - Triana Kusumaningsih
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia
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Tan JK, Chen R, Lee RCH, Li F, Dai K, Zhou GC, Chu JJH. Discovery of Novel Andrographolide Derivatives as Antiviral Inhibitors against Human Enterovirus A71. Pharmaceuticals (Basel) 2022; 15:ph15020115. [PMID: 35215228 PMCID: PMC8880313 DOI: 10.3390/ph15020115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 01/06/2023] Open
Abstract
Hand-foot-and-mouth disease (HFMD) caused by human enterovirus A71 (EV-A71) infection has been associated with severe neurological complications. With the lack of an internationally approved antiviral, coupled with a surge in outbreaks globally, EV-A71 has emerged as a neurotropic virus of high clinical importance. Andrographolide has many pharmacological effects including antiviral activity and its derivative, andrographolide sulfonate, has been used in China clinically to treat EV-A71 infections. This study sought to identify novel andrographolide derivatives as EV-A71 inhibitors and elucidate their antiviral mode of action. Using an immunofluorescence-based phenotypic screen, we identified novel EV-A71 inhibitors from a 344-compound library of andrographolide derivatives and validated them with viral plaque assays. Among these hits, ZAF-47, a quinolinoxy-andrographolide, was selected for downstream mechanistic studies. It was found that ZAF-47 acts on EV-A71 post-entry stages and inhibits EV-A71 protein expression. Subsequent luciferase studies confirm that ZAF-47 targets EV-A71 genome RNA replication specifically. Unsuccessful attempts in generating resistant mutants led us to believe a host factor is likely to be involved which coincide with the finding that ZAF-47 exhibits broad-spectrum antiviral activity against other enteroviruses (CV-A16, CV-A6, Echo7, CV-B5, CV-A24 and EV-D68). Furthermore, ZAF-46 and ZAF-47, hits from the screen, were derivatives of the same series containing quinolinoxy and olefin modifications, suggesting that an andrographolide scaffold mounted with these unique moieties could be a potential anti-EV-A71/HFMD strategy.
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Affiliation(s)
- Jie Kai Tan
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore; (J.K.T.); (R.C.H.L.)
| | - Ran Chen
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China; (R.C.); (F.L.); (K.D.)
| | - Regina Ching Hua Lee
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore; (J.K.T.); (R.C.H.L.)
| | - Feng Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China; (R.C.); (F.L.); (K.D.)
| | - Kun Dai
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China; (R.C.); (F.L.); (K.D.)
| | - Guo-Chun Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China; (R.C.); (F.L.); (K.D.)
- Correspondence: (G.-C.Z.); (J.J.H.C.)
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117545, Singapore; (J.K.T.); (R.C.H.L.)
- Infectious Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Collaborative and Translation Unit for HFMD, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore 138673, Singapore
- Correspondence: (G.-C.Z.); (J.J.H.C.)
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20
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Mitochondria-mediated oxidative stress during viral infection. Trends Microbiol 2022; 30:679-692. [DOI: 10.1016/j.tim.2021.12.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/20/2022]
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Dai K, Tan JK, Qian W, Lee RCH, Hann Chu JJ, Zhou GC. Discovery of 14S-(2'-chloro-4'-nitrophenoxy)-8R/S,17-epoxy andrographolide as EV-A71 infection inhibitor. Biochem Pharmacol 2021; 194:114820. [PMID: 34748818 DOI: 10.1016/j.bcp.2021.114820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/18/2021] [Accepted: 11/02/2021] [Indexed: 01/23/2023]
Abstract
Human enterovirus A71 (EV-A71) is a major etiological agent of hand-foot-and-mouth disease (HFMD) and there is presently no internationally approved antiviral against EV-A71. In this study, it is disclosed that 14S-(2'-chloro-4'-nitrophenoxy)-8R/S,17-epoxy andrographolide (2) was discovered to be an effective inhibitor against EV-A71 infection showing significant reduction of viral titre. In addition to EV-A71, compound 2 exerts broad-spectrum antiviral effects against other enteroviruses. It is revealed that compound 2 inhibits the post-entry stages of EV-A71 viral replication cycle and significantly reduces viral protein expression of structural proteins such as VP0 and VP2 via inhibiting EV-A71 RNA replication. Moreover, the inhibitory property of compound 2 is specific to viral RNA replication. Furthermore, compound 2 is more likely to target a host factor in EV-A71 RNA replication. As a result, introduction of epoxide at positions 8 and 17 of andrographolide is effective for anti-EV-A71 infection and is a potential anti-EV-A71 strategy. Further work to discover more potent andrographolide derivatives and elucidate comprehensive SAR is under way.
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Affiliation(s)
- Kun Dai
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu, China
| | - Jie Kai Tan
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, 117545 Singapore, Singapore
| | - Weiyi Qian
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu, China
| | - Regina Ching Hua Lee
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, 117545 Singapore, Singapore
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, 117545 Singapore, Singapore; Infectious Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 117597 Singapore, Singapore; Collaborative and Translation Unit for HFMD, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 138673 Singapore, Singapore.
| | - Guo-Chun Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu, China.
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Functional Insights into Silymarin as an Antiviral Agent against Enterovirus A71 (EV-A71). Int J Mol Sci 2021; 22:ijms22168757. [PMID: 34445463 PMCID: PMC8395941 DOI: 10.3390/ijms22168757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 12/11/2022] Open
Abstract
Enterovirus A71 (EV-A71) is a major neurovirulent agent capable of causing severe hand, foot and mouth disease (HFMD) associated with neurological complications and death. Currently, no FDA-approved antiviral is available for the treatment of EV-A71 infections. The flavonoid silymarin was shown to exert virucidal effects, but the binding site on the capsid was unknown. In this study, the ligand interacting site of silymarin was determined in silico and validated in vitro. Moreover, the potential of EV-A71 to develop resistance against silymarin was further evaluated. Molecular docking of silymarin with the capsid of EV-A71 indicated that silymarin binds to viral protein 1 (VP1) of EV-A71, specifically at the GH loop of VP1. The in vitro binding of silymarin with VP1 of EV-A71 was validated using recombinant VP1 through ELISA competitive binding assay. Continuous passaging of EV-A71 in the presence of silymarin resulted in the emergence of a mutant carrying a substitution of isoleucine by threonine (I97T) at position 97 of the BC loop of EV-A71. The mutation was speculated to overcome the inhibitory effects of silymarin. This study provides functional insights into the underlying mechanism of EV-A71 inhibition by silymarin, but warrants further in vivo evaluation before being developed as a potential therapeutic agent.
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Zhang R, Cheng M, Liu B, Yuan M, Chen D, Wang Y, Wu Z. DEAD-Box Helicase DDX6 Facilitated RIG-I-Mediated Type-I Interferon Response to EV71 Infection. Front Cell Infect Microbiol 2021; 11:725392. [PMID: 34485180 PMCID: PMC8414799 DOI: 10.3389/fcimb.2021.725392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/28/2021] [Indexed: 12/24/2022] Open
Abstract
Previous studies have shown that DEAD (Glu-Asp-Ala-Glu)-box RNA helicases play important roles in viral infection, either as cytosolic sensors of pathogenic molecules or as essential host factors against viral infection. In the current study, we found that DDX6, an RNA helicase belonging to the DEAD-box family of helicase, exhibited anti-Enterovirus 71 activity through augmenting RIG-I-mediated type-I IFN response. Moreover, DDX6 binds viral RNA to form an RNA-protein complex to positively regulate the RIG-I-mediated interferon response; however, EV71 has evolved a strategy to antagonize the antiviral effect of DDX6 by proteolytic degradation of the molecule through its non-structural protein 2A, a virus-encoded protease.
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Affiliation(s)
- Rui Zhang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Min Cheng
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Bingxin Liu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Meng Yuan
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Deyan Chen
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Yujiong Wang
- School of Life Sciences, Ningxia University, Yinchuan, China
| | - Zhiwei Wu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
- School of Life Sciences, Ningxia University, Yinchuan, China
- Medical School and Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
- State Key Lab of Analytical Chemistry for Life Science, Nanjing University, Nanjing, China
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Chikhale RV, Sinha SK, Khanal P, Gurav NS, Ayyanar M, Prasad SK, Wanjari MM, Patil RB, Gurav SS. Computational and network pharmacology studies of Phyllanthus emblica to tackle SARS-CoV-2. PHYTOMEDICINE PLUS : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 1:100095. [PMID: 35399824 PMCID: PMC8276571 DOI: 10.1016/j.phyplu.2021.100095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/08/2021] [Accepted: 06/30/2021] [Indexed: 04/14/2023]
Abstract
Background Since December 2019, SARS-CoV-2 had been a significant threat globally, which has accounted for about two million deaths. Several types of research are undergoing and have reported the significant role of repurposing existing drugs and natural lead in the treatment of COVID-19. The plant Phyllanthus emblica (Synonym-Emblica officinalis) (Euphorbiaceae) is a rich source of vitamin C, and its use as an antiviral agent has been well established. Purpose The present study was undertaken to investigate the potency of the several components of Phyllanthus emblica against three protein targets of 2019-nCoV viz. NSP15 endoribonuclease, main protease, and receptor binding domain of prefusion spike protein using molecular docking and dynamics studies. Methods The docking simulation studies were carried out using Schrödinger maestro 2018-1 MM share version, while dynamics studies were conducted to understand the binding mechanism and the complexes' stability studies. Results Out of sixty-six tested compounds, Chlorogenic acid, Quercitrin, and Myricetin were most effective in showing the highest binding energy against selected protein targets of SARS-CoV-2. The network pharmacology analysis study confirmed these compounds' role in modulating the immune response, inflammatory cascade, and cytokine storm through different signaling pathways. Conclusion Current pharmacoinformatic approach shows possible role of Phyllanthus emblica in the treatment and management of COVID-19.
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Affiliation(s)
- Rupesh V Chikhale
- UCL School of Pharmacy, Brunswick Square, London WC1N 1AX, United Kingdom
| | - Saurabh K Sinha
- Department of Pharmaceutical Sciences, Mohanlal Shukhadia University, Udaipur, Rajasthan 313 001, India
| | - Pukar Khanal
- Department of Pharmacology and Toxicology, KLE College of Pharmacy, KLE, Academy of Higher Education and Research (KAHER), Belagavi 590010, India
| | - Nilambari S Gurav
- Department of Pharmacognosy and Phytochemistry, PES's Rajaram and Tarabai Bandekar College of Pharmacy, Ponda, Goa University, Goa 403401, India
| | - Muniappan Ayyanar
- Department of Botany, A.V.V.M. Sri Pushpam College (Autonomous), Bharathidasan University, Poondi, Thanjavur 613 503, India
| | - Satyendra K Prasad
- Department of Pharmaceutical Sciences, R.T.M. University, Nagpur, Maharashtra 440033, India
| | - Manish M Wanjari
- Regional Ayurveda Research Institute for Drug Development, Pune, Maharashtra, India
| | - Rajesh B Patil
- Sinhgad Technical Education Society's, Smt. Kashibai Navale College of Pharmacy, Pune, Maharashtra, India
| | - Shailendra S Gurav
- Department of Pharmacognosy and Phytochemistry, Goa College of Pharmacy, Panaji, Goa University, Goa- 403 001, India
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Polyphenols Epigallocatechin Gallate and Resveratrol, and Polyphenol-Functionalized Nanoparticles Prevent Enterovirus Infection through Clustering and Stabilization of the Viruses. Pharmaceutics 2021; 13:pharmaceutics13081182. [PMID: 34452144 PMCID: PMC8398301 DOI: 10.3390/pharmaceutics13081182] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/23/2021] [Accepted: 07/28/2021] [Indexed: 01/10/2023] Open
Abstract
To efficiently lower virus infectivity and combat virus epidemics or pandemics, it is important to discover broadly acting antivirals. Here, we investigated two naturally occurring polyphenols, Epigallocatechin gallate (EGCG) and Resveratrol (RES), and polyphenol-functionalized nanoparticles for their antiviral efficacy. Concentrations in the low micromolar range permanently inhibited the infectivity of high doses of enteroviruses (107 PFU/mL). Sucrose gradient separation of radiolabeled viruses, dynamic light scattering, transmission electron microscopic imaging and an in-house developed real-time fluorescence assay revealed that polyphenols prevented infection mainly through clustering of the virions into very stable assemblies. Clustering and stabilization were not compromised even in dilute virus solutions or after diluting the polyphenols-clustered virions by 50-fold. In addition, the polyphenols lowered virus binding on cells. In silico docking experiments of these molecules against 2- and 3-fold symmetry axes of the capsid, using an algorithm developed for this study, discovered five binding sites for polyphenols, out of which three were novel binding sites. Our results altogether suggest that polyphenols exert their antiviral effect through binding to multiple sites on the virion surface, leading to aggregation of the virions and preventing RNA release and reducing cell surface binding.
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Khouchlaa A, El Menyiy N, Guaouguaou FE, El Baaboua A, Charfi S, Lakhdar F, El Omari N, Taha D, Shariati MA, Rebezov M, El-Shazly M, Bouyahya A. Ethnomedicinal use, phytochemistry, pharmacology, and toxicology of Daphne gnidium: A review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 275:114124. [PMID: 33865924 DOI: 10.1016/j.jep.2021.114124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/18/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Daphne gnidium L., (Lazaz or Metnan) is a perennial plant that grows around the Mediterranean basin, in Southern Europe, North Africa and the Middle East. It is used in different countries for hair care and to treat several diseases including skin cancer, diabetes, nervous breakdowns, sinusitis, poisoning, rheumatic disorders, odontalgia, muscular pain, and gastrointestinal infections. It is also used as anti-inflammatory, insecticide, and anti-parasitic remedy. AIM OF THE REVIEW In this review, previous studies on D. gnidium including its botanical description, taxonomy, geographical distribution, medicinal use, phytochemistry, and pharmacological properties were critically highlighted and discussed for suggesting the exploration of this specie and its bioactive compounds in medical applications. MATERIALS AND METHODS Data on D. gnidium were gathered from Scientific search engines including PubMed, ScienceDirect, SpringerLink, Web of Science, Scopus, Wiley Online, SciFinder, and Google Scholar. Reports on D. gnidium written in English published before September 2020 were summarized. RESULTS In traditional medicine, D. gnidium is used to treat diabetes, gastrointestinal infections, skin cancer, nervous breakdowns, and sinusitis. The extracts and essential oil of D. gnidium exhibited several biological properties such as antibacterial, antifungal, antiviral, antigenotoxic, hemolytic, anti-inflammatory, immunomodulatory, neuroprotective, allelopathic, and insecticidal effects. Phytochemical investigations identified several chemical classes of secondary metabolites in D. gnidium essential oil and extracts including terpenoids, coumarins, flavonoids, fatty acids, and alkanes. CONCLUSIONS The findings presented in this study showed a link between the traditional medicinal use and scientific biological results about D. gnidium. However, further investigations should be carried out to support medical and cosmetic applications of this species. Indeed, D. gnidium and its main compounds should be confirmed concerning their safety and their bioavailability. Moreover, pharmacodynamic studies should be conducted to support their efficacy in medical applications.
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Affiliation(s)
- Aya Khouchlaa
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco.
| | - Naoual El Menyiy
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health and Quality of Life (SNAMOPEQ), Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez, Morocco.
| | - Fatima-Ezzahrae Guaouguaou
- Mohammed V University in Rabat, LPCMIO, Materials Science Center (MSC), Ecole Normale Supérieure, Rabat, Morocco
| | - Aicha El Baaboua
- Biology and Health Laboratory, Department of Biology, Faculty of Science, Abdelmalek-Essaadi University, Tetouan, Morocco
| | - Saoulajan Charfi
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco.
| | - Fatima Lakhdar
- Department of Biology, Laboratory of Marine Biotechnology and Environment, Faculty of Sciences, Chouaib Doukkali University, BP 20, El Jadida 24000, Morocco.
| | - Nasreddine El Omari
- Laboratory of Histology, Embryology, and Cytogenetic, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco.
| | - Douae Taha
- Laboratoire de Spectroscopie, Modélisation Moléculaire, Matériaux, Nanomatériaux, Eau et Environnement, CERNE2D, Faculté des Sciences, Université Mohammed V, Rabat, Morocco.
| | - Mohammad Ali Shariati
- Department of Technology of Food Production, K.G. Razumoysky Moscow State University of Technologies and Management (the First Cossack University) 109004, Moscow, Russian Federation.
| | - Maksim Rebezov
- V. M. Gorbatov Federal Research Center for Food Systems of Russian, Academy of Sciences, 109029, Moscow, Russian Federation.
| | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, 11566, Egypt; Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, 11835, Egypt.
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco.
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Anand AV, Balamuralikrishnan B, Kaviya M, Bharathi K, Parithathvi A, Arun M, Senthilkumar N, Velayuthaprabhu S, Saradhadevi M, Al-Dhabi NA, Arasu MV, Yatoo MI, Tiwari R, Dhama K. Medicinal Plants, Phytochemicals, and Herbs to Combat Viral Pathogens Including SARS-CoV-2. Molecules 2021; 26:1775. [PMID: 33809963 PMCID: PMC8004635 DOI: 10.3390/molecules26061775] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome corona virus-2 (SARS-CoV-2), is the most important health issue, internationally. With no specific and effective antiviral therapy for COVID-19, new or repurposed antiviral are urgently needed. Phytochemicals pose a ray of hope for human health during this pandemic, and a great deal of research is concentrated on it. Phytochemicals have been used as antiviral agents against several viruses since they could inhibit several viruses via different mechanisms of direct inhibition either at the viral entry point or the replication stages and via immunomodulation potentials. Recent evidence also suggests that some plants and its components have shown promising antiviral properties against SARS-CoV-2. This review summarizes certain phytochemical agents along with their mode of actions and potential antiviral activities against important viral pathogens. A special focus has been given on medicinal plants and their extracts as well as herbs which have shown promising results to combat SARS-CoV-2 infection and can be useful in treating patients with COVID-19 as alternatives for treatment under phytotherapy approaches during this devastating pandemic situation.
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Affiliation(s)
- Arumugam Vijaya Anand
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641046, India; (M.K.); (K.B.); (A.P.)
| | | | - Mohandass Kaviya
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641046, India; (M.K.); (K.B.); (A.P.)
| | - Kathirvel Bharathi
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641046, India; (M.K.); (K.B.); (A.P.)
| | - Aluru Parithathvi
- Medical Genetics and Epigenetics Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641046, India; (M.K.); (K.B.); (A.P.)
| | - Meyyazhagan Arun
- Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru 560029, India;
| | - Nachiappan Senthilkumar
- Institute of Forest Genetics and Tree Breeding (IFGTB), Forest Campus, Cowley Brown Road, RS Puram, Coimbatore 641002, India;
| | | | | | - Naif Abdullah Al-Dhabi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (N.A.A.-D.); (M.V.A.)
| | - Mariadhas Valan Arasu
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (N.A.A.-D.); (M.V.A.)
- Xavier Research Foundation, St. Xavier’s College, Palayamkottai, Thirunelveli 627002, India
| | - Mohammad Iqbal Yatoo
- Faculty of Veterinary Sciences and Animal Husbandry, Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar 190006, India;
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, UP Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU), Mathura 281001, India;
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, India
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Abstract
Enterovirus D68 (EV-D68) is an RNA virus that causes respiratory illnesses mainly in children. In severe cases, it can lead to neurological complications such as acute flaccid myelitis (AFM). EV-D68 belongs to the enterovirus genera of the Picornaviridae family, which also includes many other significant human pathogens such as poliovirus, enterovirus A71, and rhinovirus. There are currently no vaccines or antivirals against EV-D68. In this review, we present the current understanding of the link between EV-D68 and AFM, the mechanism of viral replication, and recent progress in developing EV-D68 antivirals by targeting various viral proteins and host factors that are essential for viral replication. The future directions of EV-D68 antiviral drug discovery and the criteria for drugs to reach clinical trials are also discussed.
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Affiliation(s)
- Yanmei Hu
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, USA, 85721
| | - Rami Musharrafieh
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, USA, 85721
| | - Madeleine Zheng
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, USA, 85721
| | - Jun Wang
- Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, USA, 85721
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The Pyrimidine Analog FNC Potently Inhibits the Replication of Multiple Enteroviruses. J Virol 2020; 94:JVI.00204-20. [PMID: 32075935 PMCID: PMC7163137 DOI: 10.1128/jvi.00204-20] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/12/2022] Open
Abstract
Human enteroviruses (EVs), including coxsackieviruses, the numbered enteroviruses, and echoviruses, cause a wide range of diseases, such as hand, foot, and mouth disease (HFMD), encephalitis, myocarditis, acute flaccid myelitis (AFM), pneumonia, and bronchiolitis. Therefore, broad-spectrum anti-EV drugs are urgently needed to treat EV infection. Here, we demonstrate that FNC (2'-deoxy-2'-β-fluoro-4'-azidocytidine), a small nucleoside analog inhibitor that has been demonstrated to be a potent inhibitor of HIV and entered into a clinical phase II trial in China, potently inhibits the viral replication of a multitude of EVs, including enterovirus 71 (EV71), coxsackievirus A16 (CA16), CA6, EVD68, and coxsackievirus B3 (CVB3), at the nanomolar level. The antiviral mechanism of FNC involves mainly positive- and negative-strand RNA synthesis inhibition by targeting and competitively inhibiting the activity of EV71 viral RNA-dependent RNA polymerase (3Dpol), as demonstrated through quantitative real-time reverse transcription-PCR (RT-qPCR), in vitro 3Dpol activity, and isothermal titration calorimetry (ITC) experiments. We further demonstrated that FNC treatment every 2 days with 1 mg/kg of body weight in EV71 and CA16 infection neonatal mouse models successfully protected mice from lethal challenge with EV71 and CA16 viruses and reduced the viral load in various tissues. These findings provide important information for the clinical development of FNC as a broad-spectrum inhibitor of human EV pathogens.IMPORTANCE Human enterovirus (EV) pathogens cause various contagious diseases such as hand, foot, and mouth disease, encephalitis, myocarditis, acute flaccid myelitis, pneumonia, and bronchiolitis, which have become serious health threats. However, except for the EV71 vaccine on the market, there are no effective strategies to prevent and treat other EV pathogen infections. Therefore, broad-spectrum anti-EV drugs are urgently needed. In this study, we demonstrated that FNC, a small nucleoside analog inhibitor that has been demonstrated to be a potent inhibitor of HIV and entered into a clinical phase II trial in China, potently inhibits the viral replication of a multitude of EVs at the nanomolar level. Further investigation revealed that FNC inhibits positive- and negative-strand RNA synthesis of EVs by interacting and interfering with the activity of EV71 viral RNA-dependent RNA polymerase (3Dpol). Our findings demonstrate for the first time that FNC is an effective broad-spectrum inhibitor for human EV pathogens.
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Liu F, Huang Y, Wang Q, Shan H. Construction of eGFP-Tagged Senecavirus A for Facilitating Virus Neutralization Test and Antiviral Assay. Viruses 2020; 12:v12030283. [PMID: 32150804 PMCID: PMC7150990 DOI: 10.3390/v12030283] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 12/20/2022] Open
Abstract
Senecavirus A (SVA), also known as Seneca Valley virus, is an emerging virus that causes vesicular disease in pigs. This virus belongs to the genus Senecavirus in the family Picornaviridae. The SVA CH-LX-01-2016 was isolated from Guangdong Province of China in 2016. In this study, a recombinant SVA CH-LX-01-2016 was constructed using reverse genetics, and proven to be able to express efficiently an enhanced green fluorescent protein (eGFP) in vitro. This eGFP-tagged recombinant SVA (rSVA-eGFP) exhibited a high capacity for viral replication. Its fluorescence-tracked characteristics greatly facilitated both virus neutralization test (VNT) and antiviral assay. The rSVA-eGFP-based VNT was used to detect eight porcine serum samples, out of which four were determined to be neutralization titer-positive. Subsequently, two antiviral drugs, ribavirin and apigenin, were assayed for evaluating both effects against the rSVA-eGFP in vitro. The result showed that only the ribavirin exhibited an anti-SVA activity.
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Affiliation(s)
- Fuxiao Liu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Y.H.); (Q.W.)
- Qingdao Research Center for Veterinary Biological Engineering and Technology, Qingdao 266109, China
- Correspondence: (F.L.); (H.S.)
| | - Yilan Huang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Y.H.); (Q.W.)
| | - Qianqian Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Y.H.); (Q.W.)
| | - Hu Shan
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Y.H.); (Q.W.)
- Shandong Collaborative Innovation Center for Development of New Veterinary Pharmaceuticals, Qingdao 266109, China
- Correspondence: (F.L.); (H.S.)
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Flavonoids as Antiviral Agents for Enterovirus A71 ( EV-A71). Viruses 2020; 12:v12020184. [PMID: 32041232 PMCID: PMC7077323 DOI: 10.3390/v12020184] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 12/15/2022] Open
Abstract
Flavonoids are natural biomolecules that are known to be effective antivirals. These biomolecules can act at different stages of viral infection, particularly at the molecular level to inhibit viral growth. Enterovirus A71 (EV-A71), a non-enveloped RNA virus, is one of the causative agents of hand, foot and mouth disease (HFMD), which is prevalent in Asia. Despite much effort, no clinically approved antiviral treatment is available for children suffering from HFMD. Flavonoids from plants serve as a vast reservoir of therapeutically active constituents that have been explored as potential antiviral candidates against RNA and DNA viruses. Here, we reviewed flavonoids as evidence-based natural sources of antivirals against non-picornaviruses and picornaviruses. The detailed molecular mechanisms involved in the inhibition of EV-A71 infections are discussed.
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Emetine protects mice from enterovirus infection by inhibiting viral translation. Antiviral Res 2020; 173:104650. [DOI: 10.1016/j.antiviral.2019.104650] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/29/2019] [Accepted: 11/12/2019] [Indexed: 11/19/2022]
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A Review on Flavonoid Apigenin: Dietary Intake, ADME, Antimicrobial Effects, and Interactions with Human Gut Microbiota. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7010467. [PMID: 31737673 PMCID: PMC6817918 DOI: 10.1155/2019/7010467] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/25/2019] [Accepted: 07/31/2019] [Indexed: 12/31/2022]
Abstract
Apigenin is a flavonoid of low toxicity and multiple beneficial bioactivities. Published reviews all focused on the findings using eukaryotic cells, animal models, or epidemiological studies covering the pharmacokinetics, cancer chemoprevention, and drug interactions of apigenin; however, no review is available on the antimicrobial effects of apigenin. Research proves that dietary apigenin passes through the upper gastrointestinal tract and reaches the colon after consumption. For that reason, it is worthwhile to study the potential interactions between apigenin and human gut microbiota. This review summarizes studies on antimicrobial effects of apigenin as well as what has been reported on apigenin and human gut microbiota. Various levels of effectiveness have been reported on apigenin's antibacterial, antifungal, and antiparasitic capability. It has been shown that apigenin or its glycosides are degraded into smaller metabolites by certain gut bacteria which can regulate the human body after absorption. How apigenin contributes to the structural and functional changes in human gut microbiota as well as the bioactivities of apigenin bacterial metabolites are worth further investigation.
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Wang H, Yuan M, Wang S, Zhang L, Zhang R, Zou X, Wang X, Chen D, Wu Z. STAT3 Regulates the Type I IFN-Mediated Antiviral Response by Interfering with the Nuclear Entry of STAT1. Int J Mol Sci 2019; 20:ijms20194870. [PMID: 31575039 PMCID: PMC6801597 DOI: 10.3390/ijms20194870] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/24/2019] [Accepted: 09/28/2019] [Indexed: 12/15/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a multifunctional factor that regulates inflammation and immunity. Knowledge of its regulatory mechanisms is very limited. Here, we showed that enterovirus 71 (EV71) infection induced the phosphorylation of STAT3 and the expression of its downstream inflammatory regulators. Knockdown of STAT3 with siRNAs significantly restricted viral RNA and protein levels, and also reduced viral titers. With further investigation, we found that importin α family member Karyopherin-α1 (KPNA1) was employed by both STAT1 and STAT3 for their nuclear import. The phosphorylated and un-phosphorylated STAT3 competed with STAT1 for binding to the decreased KPNA1 post infection and repressed downstream ISG expression. STAT3 knockdown alleviated the repressed type I IFN-mediated antiviral response upon infection and led to decreased viral replication. Taken together, our data suggested the role of STAT3 in maintaining the balance of inflammation and antiviral responses in the central nervous system (CNS) upon infection.
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Affiliation(s)
- Huanru Wang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Meng Yuan
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Shuaibo Wang
- Jinling College, Nanjing University, Nanjing 210089, China.
| | - Li Zhang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Rui Zhang
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Xue Zou
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Xiaohui Wang
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Deyan Chen
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
| | - Zhiwei Wu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing 210093, China.
- State Key Lab of Analytical Chemistry for Life Science, Nanjing University, Nanjing 210023, China.
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing 210093, China.
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Antiviral Efficacy of Flavonoids against Enterovirus 71 Infection in Vitro and in Newborn Mice. Viruses 2019; 11:v11070625. [PMID: 31284698 PMCID: PMC6669683 DOI: 10.3390/v11070625] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/30/2019] [Accepted: 07/03/2019] [Indexed: 12/26/2022] Open
Abstract
Enterovirus 71 (EV71) infection is known to cause hand, foot, and mouth disease (HFMD), which is associated with neurological complications; however, there is currently no effective treatment for this infection. Flavonoids are a large group of naturally occurring compounds with multiple bioactivities, and the inhibitory effects of several flavonoids against EV71 have been studied in cell cultures; however, to date, there are no reported data on their effects in animal models. In this study, we confirmed the in vitro activities of eight flavonoids against EV71 infection, based on the inhibition of cytopathic effects. Moreover, these flavonoids were found to reduce viral genomic RNA replication and protein synthesis. We further demonstrated the protective efficacy of these flavonoids in newborn mice challenged with a lethal dose of EV71. Apigenin, luteolin, kaempferol, formononetin, and penduletin conferred survival protection of 88.89%, 91.67%, 88.89%, 75%, and 66.67%, respectively, from the lethal EV71 challenge. In addition, isorhamnetin provided the highest mice survival protection of 100% at a dose of 10 mg/kg. This study, to the best of our knowledge, is the first to evaluate the in vivo anti-EV7l activities of multiple flavonoids, and we accordingly identified flavonoids as potential leading compounds for anti-EV71 drug development.
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Owino CO, Chu JJH. Recent advances on the role of host factors during non-poliovirus enteroviral infections. J Biomed Sci 2019; 26:47. [PMID: 31215493 PMCID: PMC6582496 DOI: 10.1186/s12929-019-0540-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 06/11/2019] [Indexed: 02/06/2023] Open
Abstract
Non-polio enteroviruses are emerging viruses known to cause outbreaks of polio-like infections in different parts of the world with several cases already reported in Asia Pacific, Europe and in United States of America. These outbreaks normally result in overstretching of health facilities as well as death in children under the age of five. Most of these infections are usually self-limiting except for the neurological complications associated with human enterovirus A 71 (EV-A71). The infection dynamics of these viruses have not been fully understood, with most inferences made from previous studies conducted with poliovirus.Non-poliovirus enteroviral infections are responsible for major outbreaks of hand, foot and mouth disease (HFMD) often associated with neurological complications and severe respiratory diseases. The myriad of disease presentations observed so far in children calls for an urgent need to fully elucidate the replication processes of these viruses. There are concerted efforts from different research groups to fully map out the role of human host factors in the replication cycle of these viral infections. Understanding the interaction between viral proteins and human host factors will unravel important insights on the lifecycle of this groups of viruses.This review provides the latest update on the interplay between human host factors/processes and non-polio enteroviruses (NPEV). We focus on the interactions involved in viral attachment, entry, internalization, uncoating, replication, virion assembly and eventual egress of the NPEV from the infected cells. We emphasize on the virus- human host interplay and highlight existing knowledge gaps that needs further studies. Understanding the NPEV-human host factors interactions will be key in the design and development of vaccines as well as antivirals against enteroviral infections. Dissecting the role of human host factors during NPEV infection cycle will provide a clear picture of how NPEVs usurp the human cellular processes to establish an efficient infection. This will be a boost to the drug and vaccine development against enteroviruses which will be key in control and eventual elimination of the viral infections.
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Affiliation(s)
- Collins Oduor Owino
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore
| | - Justin Jang Hann Chu
- Department of Microbiology and Immunology, National University of Singapore, Singapore, 117597, Singapore.
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore.
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Fu Y, Zhang L, Zhang R, Xu S, Wang H, Jin Y, Wu Z. Enterovirus 71 Suppresses miR-17-92 Cluster Through Up-Regulating Methylation of the miRNA Promoter. Front Microbiol 2019; 10:625. [PMID: 30984146 PMCID: PMC6447709 DOI: 10.3389/fmicb.2019.00625] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 03/12/2019] [Indexed: 11/13/2022] Open
Abstract
Enterovirus 71 (EV71), the etiological agent of hand-foot-and-mouth disease, has become an increasing public health challenge worldwide. Accumulating evidence suggests that mammalian microRNAs (miRNAs), a class of non-coding RNAs of 18 to 24 nucleotides (nt) with important regulatory roles in cellular processes, participate in host antiviral defense and studies have suggested roles of miRNAs in EV71 replication and pathogenesis. In the current study, we reported that the expression of hsa-miR-17∼92 cluster was significantly downregulated during EV71 infection. Overexpression of hsa-miR-17∼92 inhibited, while inhibition of endogenous hsa-miR-17∼92 facilitated EV71 replication. We identified two sequences located at nt 3024 to 3038 and nt 2838 to 2862 of the EV71 (strain FY0805) genome as potential targets for hsa-miR-17-5p and miR-19a/b, respectively, which were validated by luciferase reporter assays and Western blot. Meanwhile, we identified DNA methylation as a novel mechanism of hsa-miR-17∼92 regulatory roles. The methylation of the miR-17-92 promoter was significantly increased (50%) upon EV71 infection, which appeared to be caused by the increased expression of DNMT3B but not DNMT1 and DNMT3A. Furthermore, we demonstrated that the members of miR-17-92 cluster were decreased in the sera of EV71 infected patients, suggesting the clinical implication and the potential therapeutic application of miR-17-92.
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Affiliation(s)
- Yuxuan Fu
- School of Life Sciences, Ningxia University, Yinchuan, China.,Center for Public Health Research, Medical School of Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Li Zhang
- Center for Public Health Research, Medical School of Nanjing University, Nanjing, China
| | - Rui Zhang
- Center for Public Health Research, Medical School of Nanjing University, Nanjing, China
| | - Shijie Xu
- Center for Public Health Research, Medical School of Nanjing University, Nanjing, China
| | - Huanru Wang
- Center for Public Health Research, Medical School of Nanjing University, Nanjing, China
| | - Yu Jin
- Nanjing Children's Hospital, Nanjing Medical University, Nanjing, China
| | - Zhiwei Wu
- School of Life Sciences, Ningxia University, Yinchuan, China.,Center for Public Health Research, Medical School of Nanjing University, Nanjing, China.,The State Key Laboratory of Analytical Chemistry for Life Sciences, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, China
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Chen Y, Yuan W, Yang Y, Yao F, Ming K, Liu J. Inhibition mechanisms of baicalin and its phospholipid complex against DHAV-1 replication. Poult Sci 2018; 97:3816-3825. [DOI: 10.3382/ps/pey255] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/24/2018] [Indexed: 12/17/2022] Open
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Effects of Bush Sophora Root polysaccharide and its sulfate on DHAV-1 replication. Carbohydr Polym 2018; 197:508-514. [DOI: 10.1016/j.carbpol.2018.06.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 04/29/2018] [Accepted: 06/07/2018] [Indexed: 12/17/2022]
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Chen D, Tian X, Zou X, Xu S, Wang H, Zheng N, Wu Z. Harmine, a small molecule derived from natural sources, inhibits enterovirus 71 replication by targeting NF-κB pathway. Int Immunopharmacol 2018; 60:111-120. [DOI: 10.1016/j.intimp.2018.04.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 04/17/2018] [Accepted: 04/30/2018] [Indexed: 01/24/2023]
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Chen D, Feng C, Tian X, Zheng N, Wu Z. Promyelocytic Leukemia Restricts Enterovirus 71 Replication by Inhibiting Autophagy. Front Immunol 2018; 9:1268. [PMID: 29922292 PMCID: PMC5996053 DOI: 10.3389/fimmu.2018.01268] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 05/22/2018] [Indexed: 12/18/2022] Open
Abstract
The promyelocytic leukemia (PML) protein, also known as TRIM19, functions as a major organizer of PML nuclear bodies (NBs) in most mammalian cells and plays important roles in antiviral activities against both DNA and RNA viruses. In this study, we found that the downregulation of PML rendered HeLa cells more susceptible to infection by enterovirus 71 (EV71), and the overexpression of the PMLIII or PMLIV isoforms inhibited viral protein expression and resulted in viral titers that were 2–3 log units lower than those in the control. Using short interfering RNAs, the downregulation of either the PMLIII or PMLIV isoform increased both viral protein VP1 expression and viral production. The PML repression of EV71 replication was partially mediated by the inhibition of autophagy, and PML deficiency triggered autophagy. Furthermore, the EV71 infection resulted in a reduction in PML independent of the proteasome pathway. Instead, PML degradation was mediated by virus protease 3Cpro. In conclusion, PML contributes to a cellular antiviral effect by inhibiting autophagy, which is countered by a disruption of promyelocytic leukemia protein-nuclear bodies mediated by viral protease 3Cpro.
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Affiliation(s)
- Deyan Chen
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Chunhong Feng
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Xiaoyan Tian
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China
| | - Nan Zheng
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China.,State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, China.,Medical School, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Zhiwei Wu
- Center for Public Health Research, Medical School, Nanjing University, Nanjing, China.,State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, China.,Medical School, Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
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Antiviral and Inflammatory Cellular Signaling Associated with Enterovirus 71 Infection. Viruses 2018; 10:v10040155. [PMID: 29597291 PMCID: PMC5923449 DOI: 10.3390/v10040155] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/23/2018] [Accepted: 03/24/2018] [Indexed: 01/01/2023] Open
Abstract
Enterovirus 71 (EV71) infection has become a major threat to global public health, especially in infants and young children. Epidemiological studies have indicated that EV71 infection is responsible for severe and even fatal cases of hand, foot, and mouth disease (HFMD). Accumulated evidence indicates that EV71 infection triggers a plethora of interactive signaling pathways, resulting in host immune evasion and inflammatory response. This review mainly covers the effects of EV71 infection on major antiviral and inflammatory cellular signal pathways. EV71 can activate cellular signaling networks including multiple cell surface and intracellular receptors, intracellular kinases, calcium flux, and transcription factors that regulate antiviral innate immunity and inflammatory response. Cellular signaling plays a critical role in the regulation of host innate immune and inflammatory pathogenesis. Elucidation of antiviral and inflammatory cellular signaling pathways initiated by EV71 will not only help uncover the potential mechanisms of EV71 infection-induced pathogenesis, but will also provide clues for the design of therapeutic strategies against EV71 infection.
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Salmani JMM, Zhang XP, Jacob JA, Chen BA. Apigenin's anticancer properties and molecular mechanisms of action: Recent advances and future prospectives. Chin J Nat Med 2018; 15:321-329. [PMID: 28558867 DOI: 10.1016/s1875-5364(17)30052-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Indexed: 01/31/2023]
Abstract
Cancer is a major health concern and leading burden on economy worldwide. An increasing effort is devoted to isolation and development of plant-derived dietary components as effective chemo-preventive products. Phytochemical compounds from natural resources such as fruits and vegetables are responsible for decreasing the risk of certain cancers among the consuming populations. Apigenin, a flavonoid phytochemical found in many kinds of fruits and vegetables, has been shown to exert significant biological effects, such as anti-oxidant, anti-inflammatory and most particularly anti-neoplastic properties. This review is intended to summarize the most recent advances in the anti-proliferative and chemo-preventive effects of apigenin in different cancer models. Analysis of the data from the studied cancer models has revealed that apigenin exerts its anti-proliferative effects through multiple and complex pathways. This guided us to discover some controversial results about the exact role of certain molecular pathways such as autophagy in the anticancer effects of apigenin. Further, there were cumulative positive evidences supporting the involvement of certain pathways such as apoptosis, ROS and DNA damage and repair. Apigenin possesses a high potential to be used as a chemosensitizing agent through the up-regulation of DR5 pathway. According to these preclinical findings we recommend that further robust unbiased studies should consider the possible interactions between different molecular pathways.
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Affiliation(s)
- Jumah Masoud Mohammad Salmani
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Xiao-Ping Zhang
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Joe Antony Jacob
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Bao-An Chen
- Department of Hematology and Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China.
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Flavonoids: promising natural compounds against viral infections. Arch Virol 2017; 162:2539-2551. [PMID: 28547385 PMCID: PMC7087220 DOI: 10.1007/s00705-017-3417-y] [Citation(s) in RCA: 256] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/05/2017] [Indexed: 01/12/2023]
Abstract
Flavonoids are widely distributed as secondary metabolites produced by plants and play important roles in plant physiology, having a variety of potential biological benefits such as antioxidant, anti-inflammatory, anticancer, antibacterial, antifungal and antiviral activity. Different flavonoids have been investigated for their potential antiviral activities and several of them exhibited significant antiviral properties in in vitro and even in vivo studies. This review summarizes the evidence for antiviral activity of different flavonoids, highlighting, where investigated, the cellular and molecular mechanisms of action on viruses. We also present future perspectives on therapeutic applications of flavonoids against viral infections.
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Biochemical Content of Cambium of Abies nephrolepis Eaten by Bears on the Far East of Russia. Biochem Res Int 2017; 2017:3020571. [PMID: 28529803 PMCID: PMC5424178 DOI: 10.1155/2017/3020571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 03/27/2017] [Indexed: 12/11/2022] Open
Abstract
The peculiarity of bears behavior of stripping of bark is typical for all species. We have described the damage to trees, by Asiatic black bear (Ursus thibetanus) and brown bear (U. arctos) in Primorsky Krai and by brown bears on the Sakhalin Island during 1998-2015. In this study, we studied the damaged bark of the tree only in cases where it was clear that part of the cambium was eaten by bears. Cambium of species Abies nephrolepis is the most preferred for bear consumption in Primorsky Krai. We distinguished very large seasonal fluctuations in the amount of its consumption. The greatest interest of bears in this kind of food is in the summer time. We have analyzed the composition of the cambium of A. nephrolepis. These results suggest that the important purpose of the use of this kind of food is to restore and maintain the normal functioning of the intestines.
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Gunaseelan S, Chu JJH. Identifying novel antiviral targets against enterovirus 71: where are we? Future Virol 2017. [DOI: 10.2217/fvl-2016-0144] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Human enterovirus 71 (HEV71) has been considered as an essential human pathogen, which causes hand, foot and mouth disease in young children. Several HEV71 outbreaks have been observed in many Asia-Pacific countries for the past two decades with significant fatalities. However, there are no competent vaccines or antivirals against HEV71 infection to date. Thus, it is of critical priority to delve into the search for anti-HEV71 agents. Prior to this, there is a need to gain knowledge about the distinct targets of HEV71 that are available and that have been exploited for antiviral therapy. This review aims to provide a better understanding of HEV71 virology and feature potential antivirals for progressive clinical development with respect to their elucidated mechanistic actions.
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Affiliation(s)
- Saravanan Gunaseelan
- Laboratory of Molecular RNA Virology & Antiviral Strategies, Department of Microbiology & Immunology, Yong Loo Lin School of Medicine, National University Health System, 5 Science Drive 2, National University of Singapore, 117597 Singapore
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology & Antiviral Strategies, Department of Microbiology & Immunology, Yong Loo Lin School of Medicine, National University Health System, 5 Science Drive 2, National University of Singapore, 117597 Singapore
- Institute of Molecular & Cell Biology, Agency for Science, Technology & Research (A*STAR), 61 Biopolis Drive, Proteos #06–05, Singapore 138673
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Ali F, Rahul, Naz F, Jyoti S, Siddique YH. Health functionality of apigenin: A review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2016. [DOI: 10.1080/10942912.2016.1207188] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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49
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Fan W, Qian S, Qian P, Li X. Antiviral activity of luteolin against Japanese encephalitis virus. Virus Res 2016; 220:112-6. [DOI: 10.1016/j.virusres.2016.04.021] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 04/21/2016] [Accepted: 04/23/2016] [Indexed: 12/31/2022]
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50
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Li S, Yang LJ, Wang P, He YJ, Huang JM, Liu HW, Shen XF, Wang F. Dietary apigenin potentiates the inhibitory effect of interferon-α on cancer cell viability through inhibition of 26S proteasome-mediated interferon receptor degradation. Food Nutr Res 2016; 60:31288. [PMID: 27356910 PMCID: PMC4928072 DOI: 10.3402/fnr.v60.31288] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/29/2016] [Accepted: 04/30/2016] [Indexed: 01/09/2023] Open
Abstract
Background Type I interferons (IFN-α/β) have broad and potent immunoregulatory and antiproliferative activities. However, it is still known whether the dietary flavonoids exhibit their antiviral and anticancer properties by modulating the function of type I IFNs.
Objective This study aimed at determining the role of apigenin, a dietary plant flavonoid abundant in common fruits and vegetables, on the type I IFN-mediated inhibition of cancer cell viability. Design Inhibitory effect of apigenin on human 26S proteasome, a known negative regulator of type I IFN signaling, was evaluated in vitro. Molecular docking was conducted to know the interaction between apigenin and subunits of 26S proteasome. Effects of apigenin on JAK/STAT pathway, 26S proteasome-mediated interferon receptor stability, and cancer cells viability were also investigated. Results Apigenin was identified to be a potent inhibitor of human 26S proteasome in a cell-based assay. Apigenin inhibited the chymotrypsin-like, caspase-like, and trypsin-like activities of the human 26S proteasome and increased the ubiquitination of endogenous proteins in cells. Results from computational modeling of the potential interactions of apigenin with the chymotrypsin site (β5 subunit), caspase site (β1 subunit), and trypsin site (β2 subunit) of the proteasome were consistent with the observed proteasome inhibitory activity. Apigenin enhanced the phosphorylation of signal transducer and activator of transcription proteins (STAT1 and STAT2) and promoted the endogenous IFN-α-regulated gene expression. Apigenin inhibited the IFN-α-stimulated ubiquitination and degradation of type I interferon receptor 1 (IFNAR1). Apigenin also sensitized the inhibitory effect of IFN-α on viability of cervical carcinoma HeLa cells. Conclusion These results suggest that apigenin potentiates the inhibitory effect of IFN-α on cancer cell viability by activating JAK/STAT signaling pathway through inhibition of 26S proteasome-mediated IFNAR1 degradation. This may provide a novel mechanism for increasing the efficacy of IFN-α/β.
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Affiliation(s)
- Sheng Li
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Li-Juan Yang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Ping Wang
- School of Chinese Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yu-Jiao He
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Jun-Mei Huang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.,School of Chinese Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Han-Wei Liu
- Ningbo Entry-Exit Inspection and Quarantine Bureau Technical Center, Ningbo, China
| | - Xiao-Fei Shen
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Fei Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China.,Sichuan Translational Medicine Research Hospital, Chinese Academy of Sciences, Chengdu, China;
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