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Mokhtari T, Azizi M, Sheikhbahaei F, Sharifi H, Sadr M. Plant-Derived Antioxidants for Management of COVID-19: A Comprehensive Review of Molecular Mechanisms. TANAFFOS 2023; 22:27-39. [PMID: 37920320 PMCID: PMC10618592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/09/2022] [Indexed: 11/04/2023]
Abstract
We aimed to review the literature to introduce some effective plant-derived antioxidants to prevent and treat COVID-19. Natural products from plants are excellent sources to be used for such discoveries. Among different plant-derived bioactive substances, components including luteolin, quercetin, glycyrrhizin, andrographolide, patchouli alcohol, baicalin, and baicalein were investigated for several viral infections as well as SARS-COV-2. The mechanisms of effects detected for these agents were related to their antiviral activity through inhibition of viral entry and/or suppuration of virus function. Also, the majority of components exert anti-inflammatory effects and reduce the cytokine storm induced by virus infection. The data from different studies confirmed that these agents may play a critical role against SARS-COVID-2 via direct (antiviral activity) and indirect (antioxidant and anti-inflammatory) mechanisms, suggesting that natural products are a potential option for management of patients with COVID-19 due to the lower side effects and high efficiency.
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Affiliation(s)
- Tahmineh Mokhtari
- Hubei Key Laboratory of Embryonic Stem Cell Research, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, Hubei, People’s Republic of China
- Department of Histology and Embryology, Faculty of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, Hubei, People’s Republic of China
| | - Maryam Azizi
- Department of Anatomy, School of Medicine, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Fatemeh Sheikhbahaei
- Department of Anatomy, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Hooman Sharifi
- Tobacco Prevention and Control Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Makan Sadr
- Virology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Chen Z, Ye SY. Research progress on antiviral constituents in traditional Chinese medicines and their mechanisms of action. PHARMACEUTICAL BIOLOGY 2022; 60:1063-1076. [PMID: 35634712 PMCID: PMC9154771 DOI: 10.1080/13880209.2022.2074053] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 04/22/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
CONTEXT Viruses have the characteristics of rapid transmission and high mortality. At present, western medicines still lack an ideal antiviral. As natural products, many traditional Chinese medicines (TCM) have certain inhibitory effects on viruses, which has become the hotspot of medical research in recent years. OBJECTIVE The antiviral active ingredients and mechanisms of TCM against viral diseases was studied in combination with the pathogenesis of viral diseases and antiviral effects. MATERIALS AND METHODS English and Chinese literature from 1999 to 2021 was collected from databases including Web of Science, PubMed, Elsevier, Chinese Pharmacopoeia 2020 (CP), and CNKI (Chinese). Traditional Chinese medicines (TCM), active ingredients, antiviral, mechanism of action, and anti-inflammatory effect were used as the key words. RESULTS The antiviral activity of TCM is clarified to put forward a strategy for discovering active compounds against viruses, and provide reference for screening antivirus drugs from TCM. TCM can not only directly kill viruses and inhibit the proliferation of viruses in cells, but also prevent viruses from infecting cells and causing cytophilia. It can also regulate the human immune system, enhance human immunity, and play an indirect antiviral role. DISCUSSION AND CONCLUSION Based on the experimental study and antiviral mechanism of TCM, this paper can provide analytical evidence that supports the effectiveness of TCM in treating virus infections, as well as their mechanisms against viruses. It could be helpful to provide reference for the research and development of innovative TCMs with multiple components, multiple targets and low toxicity.
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Affiliation(s)
- Zhi Chen
- Pharmaceutical College, Shandong University of TCM, Jinan, People’s Republic of China
| | - Si-yong Ye
- Department of Pharmacy, Jinan Second People's Hospital, Jinan, People’s Republic of China
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Liu Y, Song X, Li C, Hu H, Li W, Wang L, Hu J, Liao C, Liang H, He Z, Ye L. Chrysin Ameliorates Influenza Virus Infection in the Upper Airways by Repressing Virus-Induced Cell Cycle Arrest and Mitochondria-Dependent Apoptosis. Front Immunol 2022; 13:872958. [PMID: 35432374 PMCID: PMC9009290 DOI: 10.3389/fimmu.2022.872958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Chrysin has been proven to possess antiviral properties, but the precise underlying anti-influenza mechanism and its anti-influenza efficacy in vivo are largely unclear. In this study, we investigated the involvement of chrysin in the blockade of cell cycle and apoptosis in distinct cell lines subjected to two H1N1 influenza A virus (IAV) strains, as well as its anti-IAV activity in vivo. Here, we found an early unidentified finding that chrysin strongly impeded IAV replication through a mechanism that was autonomous of innate antiviral immune activation and viral protein interaction. Surprisingly, chrysin can suppress IAV-induced cell cycle arrest in the G0/G1 phase by downregulating the expression levels of P53 and P21 while promoting Cyclin D1/CDK4 and Cyclin E1/CDK2 activation. Furthermore, chrysin dramatically inhibited the IAV-triggered mitochondrial apoptotic pathway by altering the balance of Bax/Bcl-xl and reducing caspase-9 and caspase-3 activation. Accumulated reactive oxygen species (ROS) reduction may contribute to the inhibitory role of chrysin in cell cycle arrest and apoptosis following IAV infection. Notably, chrysin preferably inhibited IAV replication in the upper respiratory tract, indicating that it might be a promising drug for restraining the spread of respiratory viruses.
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Affiliation(s)
- Ying Liu
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Xun Song
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Chenyang Li
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Hao Hu
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Wanlin Li
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Lu Wang
- Department of Respiratory Medicine, Shenzhen University General Hospital, Shenzhen University, Shenzhen, China
| | - Jing Hu
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Chenghui Liao
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Hanbai Liang
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Zhendan He
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
- College of Pharmacy, Shenzhen Technology University, Shenzhen, China
| | - Liang Ye
- Department of Pharmacy, Department of Immunology, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
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Fakhri S, Mohammadi Pour P, Piri S, Farzaei MH, Echeverría J. Modulating Neurological Complications of Emerging Infectious Diseases: Mechanistic Approaches to Candidate Phytochemicals. Front Pharmacol 2021; 12:742146. [PMID: 34764869 PMCID: PMC8576094 DOI: 10.3389/fphar.2021.742146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/23/2021] [Indexed: 12/02/2022] Open
Abstract
Growing studies are revealing the critical manifestations of influenza, dengue virus (DENV) infection, Zika virus (ZIKV) disease, and Ebola virus disease (EVD) as emerging infectious diseases. However, their corresponding mechanisms of major complications headed for neuronal dysfunction are not entirely understood. From the mechanistic point of view, inflammatory/oxidative mediators are activated during emerging infectious diseases towards less cell migration, neurogenesis impairment, and neuronal death. Accordingly, the virus life cycle and associated enzymes, as well as host receptors, cytokine storm, and multiple signaling mediators, are the leading players of emerging infectious diseases. Consequently, chemokines, interleukins, interferons, carbohydrate molecules, toll-like receptors (TLRs), and tyrosine kinases are leading orchestrates of peripheral and central complications which are in near interconnections. Some of the resulting neuronal manifestations have attracted much attention, including inflammatory polyneuropathy, encephalopathy, meningitis, myelitis, stroke, Guillain-Barré syndrome (GBS), radiculomyelitis, meningoencephalitis, memory loss, headaches, cranial nerve abnormalities, tremor, and seizure. The complex pathophysiological mechanism behind the aforementioned complications urges the need for finding multi-target agents with higher efficacy and lower side effects. In recent decades, the natural kingdom has been highlighted as promising neuroprotective natural products in modulating several dysregulated signaling pathways/mediators. The present study provides neuronal manifestations of some emerging infectious diseases and underlying pathophysiological mechanisms. Besides, a mechanistic-based strategy is developed to introduce candidate natural products as promising multi-target agents in combating major dysregulated pathways towards neuroprotection in influenza, DENV infection, ZIKV disease, and EVD.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Pardis Mohammadi Pour
- Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sana Piri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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Kuo YT, Liu CH, Wong SH, Pan YC, Lin LT. Small molecules baicalein and cinnamaldehyde are potentiators of measles virus-induced breast cancer oncolysis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 89:153611. [PMID: 34144429 DOI: 10.1016/j.phymed.2021.153611] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 05/06/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Although the breast cancer mortality has slowed down from 2008 to 2017, breast cancer incidence rate continues to rise and thus, new and/or improved treatments are highly needed. Among them, oncolytic virotherapy which has the ability of facilitating the antitumor adaptive immunity, appears as a promising anticancer therapy. Oncolytic measles virus (MV) is particularly suitable for targeting breast cancer due to the upregulation of MV's receptor nectin-4. Nonetheless, with limited clinical success currently, ways of boosting MV-induced breast cancer oncolysis are therefore necessary. Oncolytic virotherapy alone and combined with chemotherapeutic drugs are two strategic areas with intensive development for the search of anticancer drugs. Considering that baicalein (BAI) and cinnamaldehyde (CIN) have demonstrated antitumor properties against multiple cancers including breast cancer, they could be good partners for MV-based oncolytic virotherapy. PURPOSE To assess the in vitro effect of BAI and CIN with MV and assess their combination effects. METHODS We examined the combinatorial cytotoxic effect of oncolytic MV and BAI or CIN on MCF-7 breast cancer cells. Potential anti-MV activities of the phytochemicals were first investigated in vitro to determine the optimal combination model. Synergism of MV and BAI or CIN was then evaluated in vitro by calculating the combination indices. Finally, cell cycle analysis and apoptosis assays were performed to confirm the mechanism of synergism. RESULTS Overall, the viral sensitization combination modality using oncolytic MV to first infect MCF-7 breast cancer cells followed by drug treatment with BAI or CIN was found to produce significantly enhanced tumor killing. Further mechanistic studies showed that the combinations 'MV-BAI' and 'MV-CIN' display synergistic anti-breast cancer effect, mediated by elevated apoptosis. CONCLUSION We demonstrated, for the first time, effective combination of oncolytic MV with BAI or CIN that could be further explored and potentially developed into novel therapeutic strategies targeting nectin-4-marked breast cancer cells.
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Affiliation(s)
- Yu-Ting Kuo
- Department of Medical Imaging, Chi Mei Medical Center, Tainan 71004, Taiwan.
| | - Ching-Hsuan Liu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Microbiology & Immunology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada.
| | - Shu Hui Wong
- International PhD Program in Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yu-Chi Pan
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Liang-Tzung Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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Dong R, Li L, Gao H, Lou K, Luo H, Hao S, Yuan J, Liu Z. Safety, tolerability, pharmacokinetics, and food effect of baicalein tablets in healthy Chinese subjects: A single-center, randomized, double-blind, placebo-controlled, single-dose phase I study. JOURNAL OF ETHNOPHARMACOLOGY 2021; 274:114052. [PMID: 33753147 DOI: 10.1016/j.jep.2021.114052] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Scutellaria baicalensis (Huang-Qin in Chinese) is a dry root of the perennial herb Scutellaria baicalensis Georgi, which has been used extensively in current prescriptions. Scutellaria baicalensis is an herb high in flavonoids, and baicalein is the one flavonoid found in the highest amount in Scutellaria baicalensis. AIM OF THE STUDY Influenza virus could cause mild respiratory tract illness to severe pneumonia and even death. Baicalein has been proved to be one of the effective components against the influenza virus. However, there have been few reports on human trials of baicalein. The purpose of this study was to evaluate the safety of baicalein in vivo and analyze its pharmacokinetic characteristics. MATERIALS AND METHODS Three randomized studies were conducted to evaluate the pharmacokinetics (PK), safety, tolerability, and food effects of baicalein tablets. In the 7-month single-dose safety study, 60 subjects were enrolled and randomized to receive 100-800 mg baicalein tablets or placebo. In the single-dose PK study, 40 subjects were enrolled and randomized to receive 200 mg, 400 mg, 600 mg, 800 mg baicalein tablets. In the study of food effect on PK of baicalein, an additional 10 subjects were enrolled in the 400 mg group, this part of the trial lasted for 7 months. Blood and urine samples for PK analysis were collected at a pre-specified time. PK properties in both fasted and fed states were evaluated, as well as safety and tolerability. RESULTS Among the 80 subjects who were evaluable for the single-dose safety and tolerability, 56 adverse events (AEs) were observed in 32/80 subjects, of which 49 events were from 28/68 subjects in baicalein group and 7 events were from 4/12 subjects in placebo group. All AEs were mild and resolved without any medical intervention. The most common AEs were elevated high-sensitivity C-reactive protein (hs-CRP) level and high triglycerides. After a single administration of baicalein tablets (200 mg, 400 mg, 600 mg, or 800 mg), Cmax were 280.44, 628.80, 845.20, 489.55 ng/mL; AUC0-∞ were 2035.57, 2939.31, 4494.88, and 3754.43 h*ng/mL, respectively. And t1/2z ranged from 7.80 to 14.91 h. The exposure of baicalein and its metabolites increased in a less than dose-proportional manner. CONCLUSION Baicalein tablets within the studied dose range were safe and well-tolerated in healthy Chinese subjects with no serious or severe adverse effects. Further investigation will be needed to assess the safety and efficacy in the target patients.
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Affiliation(s)
- Ruihua Dong
- Beijing Friendship Hospital, Capital Medical University, Beijing, China; Department of Clinical Pharmacology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Lijun Li
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hongzhi Gao
- Department of Clinical Pharmacology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Kun Lou
- Department of Clinical Operations, Clinical Development Division, CSPC ZhongQi Pharmaceutical Technology Co., Ltd, Shijiazhuang, China
| | - Hongmei Luo
- Department of Medicine, Clinical Development Division, CSPC ZhongQi Pharmaceutical Technology Co., Ltd, Shijiazhuang, China
| | - Sheng Hao
- Department of Biostatistics, Clinical Development Division, CSPC ZhongQi Pharmaceutical Technology Co., Ltd, Shijiazhuang, China
| | - Jing Yuan
- Department of Biostatistics, Clinical Development Division, CSPC ZhongQi Pharmaceutical Technology Co., Ltd, Shijiazhuang, China
| | - Zeyuan Liu
- Department of Clinical Pharmacology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China.
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Devi AB, Sarala R. Substantial effect of phytochemical constituents against the pandemic disease influenza-a review. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021; 7:120. [PMID: 34150912 PMCID: PMC8196934 DOI: 10.1186/s43094-021-00269-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/20/2021] [Indexed: 12/17/2022] Open
Abstract
Background Influenza is an acute respiratory tract infection caused by the influenza virus. Vaccination and antiviral drugs are the two methods opted to control the disease. Besides their efficiency, they also cause adverse side effects. Hence, scientists turned their attention to powerful herbal medicines. This review put focus on various proven, scientifically validated anti-influenza compounds produced by the plants suggested for the production of newer drugs for the better treatment of influenza and its related antiviral diseases too. Main body In this review, fifty medicinal herb phytochemical constituents and their anti-influenza activities have been documented. Specifically, this review brings out the accurate and substantiates mechanisms of action of these constituents. This study categorizes the phytochemical constituents into primary and secondary metabolites which provide a source for synthesizing and developing new drugs. Conclusion This article provides a summary of the actions of the herbal constituents. Since the mechanisms of action of the components are elucidated, the pandemic situation arising due to influenza and similar antiviral diseases can be handled promisingly with greater efficiency. However, clinical trials are in great demand. The formulation of usage may be a single drug compound or multi-herbal combination. These, in turn, open up a new arena for the pharmaceutical industries to develop innovative drugs.
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Affiliation(s)
- A Brindha Devi
- Department of Botany, Periyar EVR College (Autonomous), (Affiliated to Bharathidasan University, Trichy-24), Trichy-620 023, Tamil Nadu, India
| | - R Sarala
- Department of Botany, Periyar EVR College (Autonomous), (Affiliated to Bharathidasan University, Trichy-24), Trichy-620 023, Tamil Nadu, India
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Song J, Zhang L, Xu Y, Yang D, Zhang L, Yang S, Zhang W, Wang J, Tian S, Yang S, Yuan T, Liu A, Lv Q, Li F, Liu H, Hou B, Peng X, Lu Y, Du G. The comprehensive study on the therapeutic effects of baicalein for the treatment of COVID-19 in vivo and in vitro. Biochem Pharmacol 2021; 183:114302. [PMID: 33121927 PMCID: PMC7588320 DOI: 10.1016/j.bcp.2020.114302] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/19/2022]
Abstract
Baicalein is the main active compound of Scutellaria baicalensis Georgi, a medicinal herb with multiple pharmacological activities, including the broad anti-virus effects. In this paper, the preclinical study of baicalein on the treatment of COVID-19 was performed. Results showed that baicalein inhibited cell damage induced by SARS-CoV-2 and improved the morphology of Vero E6 cells at a concentration of 0.1 μM and above. The effective concentration could be reached after oral administration of 200 mg/kg crystal form β of baicalein in rats. Furthermore, baicalein significantly inhibited the body weight loss, the replication of the virus, and relieved the lesions of lung tissue in hACE2 transgenic mice infected with SARS-CoV-2. In LPS-induced acute lung injury of mice, baicalein improved the respiratory function, inhibited inflammatory cell infiltration in the lung, and decreased the levels of IL-1β and TNF-α in serum. In conclusion, oral administration of crystal form β of baicalein could reach its effective concentration against SARS-CoV-2. Baicalein could inhibit SARS-CoV-2-induced injury both in vitro and in vivo. Therefore, baicalein might be a promising therapeutic drug for the treatment of COVID-19.
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Affiliation(s)
- Junke Song
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Li Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Yanfeng Xu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Dezhi Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Li Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Shiying Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Wen Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Jinhua Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Shuo Tian
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Shengqian Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Tianyi Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Ailin Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Qi Lv
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Fengdi Li
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Hongqi Liu
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650031, China
| | - Biyu Hou
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Xiaozhong Peng
- National Kunming High-level Biosafety Primate Research Center, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650031, China
| | - Yang Lu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing City Key Laboratory of Polymorphic Drugs, Center of Pharmaceutical Polymorphs, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China.
| | - Guanhua Du
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Beijing Key Laboratory of Drug Target Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China.
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Wang L, Song J, Liu A, Xiao B, Li S, Wen Z, Lu Y, Du G. Research Progress of the Antiviral Bioactivities of Natural Flavonoids. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:271-283. [PMID: 32948973 PMCID: PMC7500501 DOI: 10.1007/s13659-020-00257-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/24/2020] [Indexed: 05/05/2023]
Abstract
Flavonoids are now considered as an indispensable component in a variety of nutraceutical and pharmaceutical applications. Most recent researches have focused on the health aspects of flavonoids for humans. Especially, different flavonoids have been investigated for their potential antiviral activities, and several natural flavonoids exhibited significant antiviral properties both in vitro and in vivo. This review provides a survey of the literature regarding the evidence for antiviral bioactivities of natural flavonoids, highlights the cellular and molecular mechanisms of natural flavonoids on viruses, and presents the details of most reported flavonoids. Meanwhile, future perspectives on therapeutic applications of flavonoids against viral infections were discussed.
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Affiliation(s)
- Lin Wang
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Junke Song
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Ailin Liu
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Bin Xiao
- Laboratory of Clinical Pharmacy, Ordos Central Hospital, Ordos School of Clinical Medicine, Inner Mongolia Medical University, Ordos, 017000, China
| | - Sha Li
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Zhang Wen
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Yang Lu
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Guanhua Du
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China.
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10
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Din M, Ali F, Waris A, Zia F, Ali M. Phytotherapeutic options for the treatment of COVID-19: A concise viewpoint. Phytother Res 2020; 34:2431-2437. [PMID: 32815574 PMCID: PMC7461328 DOI: 10.1002/ptr.6786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 01/22/2023]
Affiliation(s)
- Misbahud Din
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabadPakistan
| | - Fawad Ali
- Department of PharmacyQuaid‐i‐Azam UniversityIslamabadPakistan
| | - Abdul Waris
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabadPakistan
| | - Fatima Zia
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabadPakistan
| | - Muhammad Ali
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabadPakistan
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11
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Liu C, Zhu X, Lu Y, Zhang X, Jia X, Yang T. Potential treatment with Chinese and Western medicine targeting NSP14 of SARS-CoV-2. J Pharm Anal 2020; 11:272-277. [PMID: 32923004 PMCID: PMC7476502 DOI: 10.1016/j.jpha.2020.08.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/02/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a serious global health threat. This raises an urgent need for the development of effective drugs against the deadly disease. SARS-CoV-2 non-structural protein 14 (NSP14) carrying RNA cap guanine N7-methyltransferase and 3′-5′ exoribonuclease activities could be a potential drug target for intervention. NSP14 of SARS-CoV-2 shares 98.7% of similarity with the one (PDB 5NFY) of acute respiratory syndrome (SARS) by ClustalW. Then, the SARS-CoV-2 NSP14 structures were modelled by Modeller 9.18 using SARS NSP14 (PDB 5NFY) as template for virtual screening. Based on the docking score from AutoDock Vina1.1.2, 18 small molecule drugs were selected for further evaluation. Based on the 5 ns MD simulation trajectory, binding free energy (ΔG) was calculated by MM/GBSA method. The calculated binding free energies of Saquinavir, Hypericin, Baicalein and Bromocriptine for the N-terminus of the homology model were −37.2711 ± 3.2160, −30.1746 ± 3.1914, −23.8953 ± 4.4800, and −34.1350 ± 4.3683 kcal/mol, respectively, while the calculated binding free energies were −60.2757 ± 4.7708, −30.9955 ± 2.9975, −46.3099 ± 3.5689, and −59.8104 ± 3.5389 kcal/mol, respectively, when binding to the C-terminus. Thus, the compounds including Saquinavir, Hypericin, Baicalein and Bromocriptine could bind to the N-terminus and C-terminus of the homology model of the SARS-CoV-2 NSP14, providing a candidate drug against SARS-CoV-2 for further study. NSP14 of SARS-CoV-2 shared 98.7% similarity with SARS-CoV (PDB ID: 5nfy). SARS-CoV-2 NSP14 structures were modelled by using SARS-CoV NSP14 (PDB ID: 5nfy). Saquinavir, Hypericin, Baicalein and Bromocriptine can bind to the N-terminal and C-terminal active sites of SARS-CoV-2 Nsp14.
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Affiliation(s)
- Chao Liu
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Xiaoxiao Zhu
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Yiyao Lu
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Xianqin Zhang
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, 610500, China.,Basic Medical School, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Xu Jia
- Non-coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, 610500, China
| | - Tai Yang
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, 610500, China
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12
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Huang ST, Lai HC, Lin YC, Huang WT, Hung HH, Ou SC, Lin HJ, Hung MC. Principles and treatment strategies for the use of Chinese herbal medicine in patients at different stages of coronavirus infection. Am J Cancer Res 2020; 10:2010-2031. [PMID: 32774998 PMCID: PMC7407358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is a novel, human-infecting β-coronavirus enveloped, positive-sense single-stranded RNA viruses, similar to the severe acute respiratory syndrome (SARS) infection that emerged in November 2002. In traditional Chinese medicine (TCM), the epidemic disease concepts of "febrile epidemics" (wenyi) or "warm diseases" (wenbing) are based on geographic and cultural aspects, and Chinese herbal medicine (CHM) played an important role in the treatment of epidemic diseases. CHM was widely used to treat patients suffered with SARS almost two decades ago during outbreak of SARS, with proven safety and potential benefits. TCM has also been widely used to treat cancer patients for a long history and much of them associate with immunomodulatory activity and are used to treat coronavirus-related diseases. We propose the use of CHM treatment principles for clinical practice, based on four main stages of COVID-19 infection: early, intermediate, severe, and convalescence. We suggest corresponding decoctions that exhibit antiviral activity and anti-inflammatory effects in the early stage of infection; preventing the disease from progressing from an intermediate to severe stage of infection; restoring normal lung function and improving consciousness in the severe stage; and ameliorating pulmonary and vascular injury in the convalescent stage. We summarize the pharmaceutical mechanisms of CHM for treating coronavirus via antiviral, anti-inflammatory and immunomodulatory effects.
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Affiliation(s)
- Sheng-Teng Huang
- School of Chinese Medicine, China Medical UniversityTaichung, Taiwan
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
- Research Cancer Center for Traditional Chinese Medicine, Department of Medical Research, China Medical University HospitalTaichung, Taiwan
- An-Nan Hospital, China Medical UniversityTainan, Taiwan
| | - Hsiang-Chun Lai
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
| | - Yu-Chun Lin
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
| | - Wei-Te Huang
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
| | - Hao-Hsiu Hung
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
| | - Shi-Chen Ou
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
| | - Hung-Jen Lin
- School of Chinese Medicine, China Medical UniversityTaichung, Taiwan
- Department of Chinese Medicine, China Medical University HospitalTaichung, Taiwan
| | - Mien-Chie Hung
- Graduate Institute of Biomedical Sciences, Research Center for Cancer Biology and Center for Molecular Medicine, China Medical UniversityTaichung, Taiwan
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13
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Qi Y, Zhang Q, Zhu H. Huang-Lian Jie-Du decoction: a review on phytochemical, pharmacological and pharmacokinetic investigations. Chin Med 2019; 14:57. [PMID: 31867052 PMCID: PMC6918586 DOI: 10.1186/s13020-019-0277-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/03/2019] [Indexed: 12/11/2022] Open
Abstract
Huang-Lian Jie-Du decoction (HLJDD), a famous traditional Chinese prescription constituted by Rhizoma Coptidis, Radix Scutellariae, Cortex Phellodendri and Fructus Gradeniae, has notable characteristics of dissipating heat and detoxification, interfering with tumors, hepatic diseases, metabolic disorders, inflammatory or allergic processes, cerebral diseases and microbial infections. Based on the wide clinical applications, accumulating investigations about HLJDD focused on several aspects: (1) chemical analysis to explore the underlying substrates responsible for the therapeutic effects; (2) further determination of pharmacological actions and the possible mechanisms of the whole prescription and of those representative ingredients to provide scientific evidence for traditional clinical applications and to demonstrate the intriguing molecular targets for specific pathological processes; (3) pharmacokinetic feature studies of single or all components of HLJDD to reveal the chemical basis and synergistic actions contributing to the pharmacological and clinically therapeutic effects. In this review, we summarized the main achievements of phytochemical, pharmacological and pharmacokinetic profiles of HLJDD and its herbal or pharmacologically active chemicals, as well as our understanding which further reveals the significance of HLJDD clinically.
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Affiliation(s)
- Yiyu Qi
- 1Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China.,2Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, China.,3Jiangsu Research Center of Botanical Medicine Refinement Engineering, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qichun Zhang
- 1Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China.,2Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, China.,3Jiangsu Research Center of Botanical Medicine Refinement Engineering, Nanjing University of Chinese Medicine, Nanjing, China.,4Department of Pharmacology, Pharmacy College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Huaxu Zhu
- 1Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing, China.,2Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, China.,3Jiangsu Research Center of Botanical Medicine Refinement Engineering, Nanjing University of Chinese Medicine, Nanjing, China
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14
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Lv W, Liu C, Zeng Y, Li Y, Chen W, Shi D, Guo S. Explore the potential effect of natural herbals to resist Newcastle Disease Virus. Poult Sci 2019; 98:1993-1999. [PMID: 30566670 DOI: 10.3382/ps/pey557] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 11/21/2018] [Indexed: 01/10/2023] Open
Abstract
In this study, we examined the dose-dependent effects of the formula on Newcastle disease virus (NDV). In in-vitro test, the formula within safety concentration scope and NDV were added into cultured chick embryo fibroblast in 3 modes, and the cellular A570 values were determined by MTT (3-(4, 5-dimethyithiazol-2-yl)-2, 5-diphenyltetrazolium bromide) method. In in-vivo test, we examined the expression of interferon-induced transmembrane protein 3 (IFITM3) and Interferons (IFNs) in NDV-infected chickens. The results showed that the highest virus inhibitory rates of the formula at optimal concentration group were the highest (15.625 mg/mL) in post-adding and simultaneous-adding drug and virus modes, whereas medium concentration (7.813 mg/mL) showed the highest virus inhibitory rates in pre-adding drug mode. In vivo, the formula significantly upregulated the expression of IFITM3 in NDV-infected chickens at 3-D post-infection. However, the levels of IFNs were significantly downregulated. On days 5 and 7 post-infection, the levels of IFNs quickly upregulated. Moreover, the formula can significantly upregulate the antibody to resist the NDV compared with model control group on days 5 and 7 post-infection. In animals treated with the formula, the survival rate was nearly 37% higher at 7 d post-infection. We also found that the formula had a significantly stronger effect than a single herb on upregulating the expression of IFITM3. It confirmed that the formula could significantly inhibit the infectivity of NDV to chick embryo fibroblast. Also, the formula could significantly upregulated IFITM3 expression and inhibited virus replication in NDV-infected chickens. During the early stage of infection, IFNs were consumed to stimulate IFITM3 to inhibit virus replication, whereas during later stages of the infection, the formula upregulated the levels of IFNs and their antibodies to maintain a high level of immunity.
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Affiliation(s)
- Weijie Lv
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Cui Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Ying Zeng
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Yuefei Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Wenqian Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Dayou Shi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Shining Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
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15
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Huang Z, Pan X, Zhou J, Leung WT, Li C, Wang L. Chinese herbal medicine for acute upper respiratory tract infections and reproductive safety: A systematic review. Biosci Trends 2019; 13:117-129. [PMID: 30930358 DOI: 10.5582/bst.2018.01298] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Acute upper respiratory tract infections (AURTIs) are common and self-limited in people with normal immunity but sometimes lead to poor clinical outcomes under specific conditions such as pregnancy if not treated appropriately. Chinese herbal medicines (CHM), which are widely used to treat AURTIs, have proven to be effective in preclinical and clinical studies. This review focuses on the bioactivities of typical CHM and the adverse reactions they cause, and especially issues with reproductive safety when treating AURTIs. The main mechanisms for clinical efficacy may include anti-viral, anti-bacterial, anti-inflammatory, antipyretic, and immunomodulatory action as indicated by preclinical evidence. Most clinical trials indicate that CHM shortens the natural course of AURTIs and that it relieves related symptoms such as a fever, headaches, coughing, myalgia, a cold, sore throat, and a nasal obstruction. However, some CHM have a range of adverse effects and potentially affect reproduction from endocrinal secretion to embryo development while others do not. Therefore, clinical adverse reactions and preclinical studies on the toxicity of CHM are discussed. More reliable evidence is required to conclude that CHM are efficacious and safe for pregnant women with AURTIs. This review should help to promote advances in the research on and development of CHM as alternative treatments for AURTIs and offer insight into strategies to manage the safety of CHM during clinical use.
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Affiliation(s)
- Zengshu Huang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Xinyao Pan
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Jing Zhou
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Wing Ting Leung
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Chuyu Li
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
| | - Ling Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University.,The Academy of Integrative Medicine, Fudan University.,Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases
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16
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Lee JY, Abundo MEC, Lee CW. Herbal Medicines with Antiviral Activity Against the Influenza Virus, a Systematic Review. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2019; 46:1663-1700. [PMID: 30612461 DOI: 10.1142/s0192415x18500854] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The rapidly changing influenza virus has remained a consistent threat to the well-being of a variety of species on the planet. Influenza virus' high mutation rate has allowed the virus to rapidly and continuously evolve, as well as generate new strains that are resistant to the current commercially available antivirals. Thus, the increased resistance has compelled the scientific community to explore alternative compounds that have antiviral effects against influenza virus. In this paper, the authors systematically review numerous herbal extracts that were shown to have antiviral effects against the virus. Specifically, the herbal antiviral targets mainly include hemagglutinin, neuraminidase and matrix 2 proteins. In some instances, herbal extracts inhibited the replication of oseltamivir-resistant strains and certain pentacyclic triterpenes exhibited higher antiviral activity than oseltamivir. This paper also explores the possibility of targeting various host-cell signaling pathways that are utilized by the virus during its replication process. Infected cell pathways are hijacked by intracellular signaling cascades such as NF-kB signaling, PI3K/Akt pathway, MAPK pathway and PKC/PKR signaling cascades. Herbal antivirals have been shown to target these pathways by suppressing nuclear export of influenza vRNP and thus inhibiting the phosphorylation signaling cascade. In conclusion, copious amounts of herbal antivirals have been shown to inhibit influenza virus, however further studies are needed for these new compounds to be up to modern pharmacological standards.
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Affiliation(s)
- Ju-Young Lee
- * Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Columbus, Ohio, USA.,‡ Mom-Pyon Han Pharmacy, Nambusoonhwan-ro 770, Seosan City, Chungnam, Republic of Korea
| | - Michael Edward C Abundo
- * Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Columbus, Ohio, USA.,† Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Chang-Won Lee
- * Food Animal Health Research Program, Ohio Agricultural Research and Development Center, The Ohio State University, Columbus, Ohio, USA.,† Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, USA
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17
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Wang ZL, Wang S, Kuang Y, Hu ZM, Qiao X, Ye M. A comprehensive review on phytochemistry, pharmacology, and flavonoid biosynthesis of Scutellaria baicalensis. PHARMACEUTICAL BIOLOGY 2018; 56:465-484. [PMID: 31070530 PMCID: PMC6292351 DOI: 10.1080/13880209.2018.1492620] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
CONTEXT Scutellaria baicalensis Georgi (Lamiaceae) is a popular medicinal plant. Its roots are used as the famous traditional Chinese medicine Huang-Qin, which is recorded in Chinese Pharmacopoeia, European Pharmacopoeia, and British Pharmacopoeia. OBJECTIVE This review comprehensively summarizes research progress in phytochemistry, pharmacology, and flavonoid biosynthesis of S. baicalensis. METHODS English and Chinese literature from 1973 to March 2018 was collected from databases including Web of Science, SciFinder, PubMed, Elsevier, Baidu Scholar (Chinese), and CNKI (Chinese). Scutellaria baicalensis, chemical constituents, phytochemistry, biological activities, and biosynthesis were used as the key words. RESULTS A total of 126 small molecules (1-126) and 6 polysaccharides have been isolated from S. baicalensis. The small molecules can be classified into four structural types, namely, free flavonoids, flavonoid glycosides, phenylethanoid glycosides, and other small molecules. Extracts of S. baicalensis and its major chemical constituents have been reported to possess anti-viral, anti-tumor, anti-bacterial, antioxidant, anti-inflammatory, hepatoprotective, and neuroprotective activities. Key steps in the biosynthetic pathways of Scutellaria flavonoids have also been summarized. CONCLUSIONS This article could be helpful for researchers who are interested in the chemical constituents, bioactivities, biosynthesis, and clinical applications of S. baicalensis.
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Affiliation(s)
- Zi-Long Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Shuang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yi Kuang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zhi-Min Hu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
- CONTACT Min Ye State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing100191, China
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18
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Silva T, S Salomon P, Hamerski L, Walter J, B Menezes R, Siqueira JE, Santos A, Santos JAM, Ferme N, Guimarães T, O Fistarol G, I Hargreaves P, Thompson C, Thompson F, Souza TM, Siqueira M, Miranda M. Inhibitory effect of microalgae and cyanobacteria extracts on influenza virus replication and neuraminidase activity. PeerJ 2018; 6:e5716. [PMID: 30386690 PMCID: PMC6204821 DOI: 10.7717/peerj.5716] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 09/10/2018] [Indexed: 12/29/2022] Open
Abstract
Background The influenza virus can cause seasonal infections with mild to severe symptoms, circulating worldwide, and it can affect people in any age group. Therefore, this infection is a serious public health problem that causes severe illness and death in high-risk populations. Every year, 0.5% of the world’s population is infected by this pathogen. This percentage can increase up to ten times during pandemics. Influenza vaccination is the most effective way to prevent disease. In addition, anti-influenza drugs are essential for prophylactic and therapeutic interventions. The oseltamivir (OST, a neuraminidase inhibitor) is the primary antiviral used in clinics during outbreaks. However, OST resistant viruses may emerge naturally or due to antiviral pressure, with a prevalence of 1–2% worldwide. Thus, the search for new anti-influenza drugs is extremely important. Currently, several groups have been developing studies describing the biotechnological potential of microalgae and cyanobacteria, including antiviral activity of their extracts. In Brazil, this potential is poorly known and explored. Methods With the aim of increasing the knowledge on this topic, 38 extracts from microalgae and cyanobacteria isolated from marine and freshwater biomes in Brazil were tested against: cellular toxicity; OST-sensitive and resistant influenza replications; and neuraminidase activity. Results For this purpose, Madin-Darby Canine Kidney (MDCK)-infected cells were treated with 200 μg/mL of each extract. A total of 17 extracts (45%) inhibited influenza A replication, with seven of them resulting in more than 80% inhibition. Moreover, functional assays performed with viral neuraminidase revealed two extracts (from Leptolyngbya sp. and Chlorellaceae) with IC50 mean < 210 μg/mL for influenza A and B, and also OST-sensitive and resistant strains. Furthermore, MDCK cells exposed to 1 mg/mL of all the extracts showed viability higher than 80%. Discussion Our results suggest that extracts of microalgae and cyanobacteria have promising anti-influenza properties. Further chemical investigation should be conducted to isolate the active compounds for the development of new anti-influenza drugs. The data generated contribute to the knowledge of the biotechnological potential of Brazilian biomes that are still little explored for this purpose.
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Affiliation(s)
- Thauane Silva
- Laboratório de Vírus Respiratórios e do Sarampo, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Paulo S Salomon
- Laboratório de Fitoplâncton Marinho, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lidilhone Hamerski
- Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juline Walter
- Laboratório de Microbiologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rafael B Menezes
- Laboratório de Fitoplâncton Marinho, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - José Edson Siqueira
- Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline Santos
- Laboratório de Vírus Respiratórios e do Sarampo, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | - Natália Ferme
- Laboratório de Vírus Respiratórios e do Sarampo, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Thaise Guimarães
- Laboratório de Vírus Respiratórios e do Sarampo, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Giovana O Fistarol
- Laboratório de Fitoplâncton Marinho, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo I Hargreaves
- Laboratório de Fitoplâncton Marinho, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Cristiane Thompson
- Laboratório de Microbiologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabiano Thompson
- Laboratório de Microbiologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thiago Moreno Souza
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.,Centro de Desenvolvimento Tecnológico em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Marilda Siqueira
- Laboratório de Vírus Respiratórios e do Sarampo, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Milene Miranda
- Laboratório de Vírus Respiratórios e do Sarampo, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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19
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Jin J, Chen Y, Wang D, Ma L, Guo M, Zhou C, Dou J. The inhibitory effect of sodium baicalin on oseltamivir-resistant influenza A virus via reduction of neuraminidase activity. Arch Pharm Res 2018; 41:664-676. [PMID: 29572682 DOI: 10.1007/s12272-018-1022-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/11/2018] [Indexed: 01/01/2023]
Abstract
Baicalin was identified as a neuraminidase (NA) inhibitor displaying anti-influenza A virus (IAV) activity. However, its poor solubility in saline has limited its use in the clinic. We generated sodium baicalin and showed that it exhibited greatly increased solubility in saline. Its efficacy against oseltamivir-resistant mutant A/FM/1/47-H275Y (H1N1-H275Y) was evaluated in vitro and in vivo. Results showed that 10 μM of sodium baicalin inhibited A/FM/1/47 (H1N1), A/Beijing/32/92 (H3N2) and H1N1-H275Y in MDCK cells in a dose-dependent manner, with inhibitory rates of 83.9, 75.9 and 47.7%, respectively. Intravenous administration of sodium baicalin at 100 mg/kg/d enabled the survival of 20% of H1N1-H275Y-infected mice. The treatment alleviated body weight loss and lung injury. Moreover, sodium baicalin exerted a clear inhibitory effect on NAs. The IC50 values of sodium baicalin against H1N1-H275Y and cells-expressing A/Anhui/1/2013-R294K (H7N9-R294K) NA protein (N9-R294K) were 214.4 μM and 216.3 μM. Direct interactions between sodium baicalin and NA were observed, and we simulated the interactions of sodium baicalin with N9-R294K and N9 near the active sites of OC-N9-R294K and OC-N9. The residues responsible for the sodium baicalin-N9-R294K and sodium baicalin-N9 interactions were the same, confirming that sodium baicalin exerts effects on wild-type and oseltamivir-resistant viral strains.
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Affiliation(s)
- Jing Jin
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China
| | - Yuanjin Chen
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China
| | - Dechuan Wang
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China
| | - Lingman Ma
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China
| | - Min Guo
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China
| | - Changlin Zhou
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China.
| | - Jie Dou
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, People's Republic of China.
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Inhibition activity of a traditional Chinese herbal formula Huang-Lian-Jie-Du-Tang and its major components found in its plasma profile on neuraminidase-1. Sci Rep 2017; 7:15549. [PMID: 29138445 PMCID: PMC5686190 DOI: 10.1038/s41598-017-15733-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 10/31/2017] [Indexed: 12/25/2022] Open
Abstract
Huang-Lian-Jie-Du-Tang (HLJDT), a traditional formula with four TCM herbs, has been used for hundred years for different diseases. The current study aimed to assess the inhibitory activity of HLJDT against H1N1 neuraminidase (NA-1), and identify potent NA-1 inhibitors from its plasma profile. The in vitro NA-1 study has shown that the water extract of HLJDT potently inhibited NA-1 (IC50 = 112.6 μg/ml; Ki = 55.6 μg/ml) in a competitive mode. The IC50 values of the water extracts of its four herbs were as follows: Coptidis Rhizoma, 96.1 μg/ml; Phellodendri Chinensis Cortex, 108.6 μg/ml; Scutellariae Radix, 303.5 μg/ml; Gardeniae Fructus, 285.0 μg/ml. Thirteen compounds found in the plasma profile of HLJDT were also identified as potent NA-1 inhibitors, which included jatrorrhizine, palmatine, epiberberine, geniposide, oroxylin A, berberine, coptisine, baicalein, wogonoside, phellodendrine, wogonin, oroxylin A-7-O-glucuronide and baicalin (sorted in ascending order by their IC50 values). Their inhibitory activities were consistent with molecular docking analysis when considering crystallographic water molecules in the ligand-binding pocket of NA-1. Our current findings suggested that HLJDT can be used as a complementary medicine for H1N1 infection and its potent active compounds can be developed as NA-1 inhibitors.
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Wu X, Yang Z, Dang H, Peng H, Dai Z. Baicalein Inhibits the Proliferation of Cervical Cancer Cells Through the GSK3β-Dependent Pathway. Oncol Res 2017; 26:645-653. [PMID: 28835320 PMCID: PMC7844692 DOI: 10.3727/096504017x15031557924141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Baicalein, a flavonoid derived from the root of Scutellaria baicalensis, has been reported to possess multiple pharmacological activities, such as anticancer and anti-inflammatory properties. This study investigated the effect of baicalein in cervical cancer cells. Cell growth curve and MTT assay were performed and revealed that baicalein inhibited the proliferation of SiHa and HeLa cells in a dose-dependent manner. We further found that baicalein arrested the cell cycle of SiHa and HeLa cells at the G0/G1 phase by suppressing the expression of cyclin D1 through the downregulation of phosphorylated protein kinase B (p-AKT) and phosphorylated glycogen synthase kinase 3β (p-GSK3β) according to FACS assays and Western blotting. Moreover, when CHIR-99021, a GSK3β inhibitor, was added to baicalein-treated SiHa cells, the expression of cyclin D1 was recovered, and cell proliferation was promoted. In conclusion, these data indicated that baicalein suspended the cell cycle at the G0/G1 phase via the downregulation of cyclin D1 through the AKT–GSK3β signaling pathway and further inhibited the proliferation of SiHa and HeLa cervical cancer cells.
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Affiliation(s)
- Xiaoling Wu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Zhiqin Yang
- Department of Traditional Chinese Medicine, Yan'an People's Hospital, Yan'an, P.R. China
| | - Huimin Dang
- Department of Integrated Traditional Chinese and Western Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Huixia Peng
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
| | - Zhijun Dai
- Department of Oncology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, P.R. China
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Liu W, Wang H, Zhu B, Yin C, Chen S, Li J, Yu XA, Azietaku JT, An M, Gao XM, Chang YX. An activity-integrated strategy of the identification, screening and determination of potential neuraminidase inhibitors from Radix Scutellariae. PLoS One 2017; 12:e0175751. [PMID: 28486473 PMCID: PMC5423611 DOI: 10.1371/journal.pone.0175751] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 03/30/2017] [Indexed: 01/01/2023] Open
Abstract
Small molecules isolated from herbal medicines (HMs) were identified as the potential neuraminidase inhibitors which are effective in influenza prevention and treatment. Unfortunately, current available screen methods of small molecules isolated from HMs are inefficient and insensitive. Here a novel Ultra Performance Liquid Chromatography coupled with diode-array detectors and auto-fraction collector / time-of-flight mass spectrometry (UPLC-DAD-FC/Q-TOF-MS) screening method with high efficiency was developed and validated to separate, collect, enrich, identify and quantify potential neuraminidase inhibitors from Radix Scutellariae. The results showed that 26 components with neuraminidase inhibitory activity were identified from Radix Scutellariae extracts. It was also found that the influence of origins on the quality of RS was more than that of cultivated time on the basis of the concentration of the effective components. These results brought novel insights into quality evaluation of Radix Scutellariae. It was demonstrated that new activity-integrated strategy was a suitable technique for the identification, screening and determination of potential neuraminidase inhibitors in herbal medicine and will provide novel potential strategies in other drug screening from herbal medicine.
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Affiliation(s)
- Wei Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Huilin Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Zhu
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Chengqian Yin
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Shuyang Chen
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Jin Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xie-an Yu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - John Teye Azietaku
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Mingrui An
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Xiu-mei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- * E-mail: (Y.-x.Chang); (X-m Gao)
| | - Yan-xu Chang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- * E-mail: (Y.-x.Chang); (X-m Gao)
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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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24
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Han X, Zhang DK, Guo YM, Feng WW, Dong Q, Zhang CE, Zhou YF, Liu Y, Wang JB, Zhao YL, Xiao XH, Yang M. Screening and evaluation of commonly-used anti-influenza Chinese herbal medicines based on anti-neuraminidase activity. Chin J Nat Med 2016; 14:794-800. [PMID: 28236410 DOI: 10.1016/s1875-5364(16)30095-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Indexed: 12/14/2022]
Abstract
Anti-influenza Chinese herbal medicines (anti-flu CHMs) have advantages in preventing and treating influenza virus infection. Despite various data on antiviral activities of some anti-flu CHMs have been reported, most of them could not be compared using the standard evaluation methods for antiviral activity. This situation poses an obstacle to a wide application of anti-flu CHMs. Thus, it was necessary to develop an evaluation method to estimate antiviral activities of anti-flu CHMs. In the present study, we searched for anti-flu CHMs, based on clinic usage, to select study objects from commonly-used patented anti-flu Chinese medicines. Then, a neuraminidase-based bioassay, optimized and verified by HPLC method by our research group, was adopted to detect antiviral activities of selected 26 anti-flu CHMs. Finally, eight of these herbs, including Coptidis Rhizoma, Isatidis Folium, Lonicerae Flos, Scutellaria Radix, Cyrtomium Rhizome, Houttuynia Cordata, Gardeniae Fructus, and Chrysanthemi Indici Flos, were shown to have strong antiviral activities with half maximal inhibitory concentration (IC50) values being 2.02 to 6.78 mg·mL-1 (expressed as raw materials). In contrast, the IC50 value of positive control peramivir was 0.38 mg·mL-1. Considering the extract yields of CHMs, the active component in these herbs may have a stronger antiviral activity than peramivir, suggesting that these herbs could be further researched for active compounds. Moreover, the proposed neuraminidase-based bioassay was high-throughput and simple and could be used for evaluation and screening of anti-flu CHMs as well as for their quality control.
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Affiliation(s)
- Xue Han
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Ding-Kun Zhang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Yu-Ming Guo
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Wu-Wen Feng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Qin Dong
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Cong-En Zhang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Yong-Feng Zhou
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Yan Liu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Jia-Bo Wang
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China.
| | - Yan-Ling Zhao
- Department of pharmacy, 302 Military Hospital, Beijing 100039, China.
| | - Xiao-He Xiao
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing 100039, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of Traditional Chinese Medicine, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
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Efficacy of Scutellaria baicalensis for the Treatment of Hand, Foot, and Mouth Disease Associated with Encephalitis in Patients Infected with EV71: A Multicenter, Retrospective Analysis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5697571. [PMID: 27840828 PMCID: PMC5093290 DOI: 10.1155/2016/5697571] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/03/2016] [Accepted: 09/20/2016] [Indexed: 01/17/2023]
Abstract
This study aimed to evaluate the clinical efficacy and safety of using the traditional Chinese herbal medicine Scutellaria baicalensis for the treatment of severe HFMD in 725 patients aged >1 year in a multicenter, retrospective analysis. The patients were divided into the S. baicalensis and ribavirin groups, and the temperatures, presence or absence of skin rashes and oral lesions, nervous system (NS) involvement, and viral loads of the patients, as well as the safety of the treatments, were evaluated. The median duration of fever, median time to NS involvement, and the number of patients with oral ulcers and/or vesicles, as well as skin rashes, were decreased in the S. baicalensis group compared with the ribavirin group. In addition, the EV71 viral loads were decreased in the S. baicalensis group, suggesting that S. baicalensis exerted more potent antiviral effects compared with ribavirin. The present study demonstrated that S. baicalensis was suitable for the treatment of severe HFMD in patients aged >1 year, since it was shown to rapidly relieve fever, attenuate oral lesions and rashes, and improve NS involvement. Furthermore, it was demonstrated to be relatively safe for topical application.
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26
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Kwon BE, Song JH, Song HH, Kang JW, Hwang SN, Rhee KJ, Shim A, Hong EH, Kim YJ, Jeon SM, Chang SY, Kim DE, Cho S, Ko HJ. Antiviral Activity of Oroxylin A against Coxsackievirus B3 Alleviates Virus-Induced Acute Pancreatic Damage in Mice. PLoS One 2016; 11:e0155784. [PMID: 27195463 PMCID: PMC4873122 DOI: 10.1371/journal.pone.0155784] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 05/04/2016] [Indexed: 01/08/2023] Open
Abstract
The flavonoids mosloflavone, oroxylin A, and norwogonin, which were purified from Scutellaria baicalensis Georgi, significantly protected Vero cells against Coxsackievirus B3 (CVB3)-induced cell death. To investigate the in vivo antiviral activity of oroxylin A, we intraperitoneally inoculated CVB3 into 4-week-old BALB/c mice. Body weights and blood glucose levels of the mice were decreased after CVB3 infection, and these changes were attenuated by the administration of oroxylin A. Importantly, treatment of mice with oroxylin A reduced viral titers in the pancreas and decreased the serum levels of the inflammatory cytokines including interleukin-6 (IL-6) and tumor necrosis factor (TNF)-α. Additionally, the administration of oroxylin A mitigated the histological pancreatic lesions and apoptotic cell death induced by CVB3 infection and increased the levels of phospho-eIF2α in infected pancreata. The results suggest that oroxylin A may represent a potent antiviral agent against CVB3 infection.
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Affiliation(s)
- Bo-Eun Kwon
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, 200–701, South Korea
| | - Jae-Hyoung Song
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, 200–701, South Korea
| | - Hyuk-Hwan Song
- Agency for Korea National Food Cluster (AnFC), Iksan, Korea
| | - Ju Won Kang
- Department of Biomedical Laboratory Science, Yonsei University, Wonju, 220–710, Republic of Korea
| | - Sam Noh Hwang
- Department of Biomedical Laboratory Science, Yonsei University, Wonju, 220–710, Republic of Korea
| | - Ki-Jong Rhee
- Department of Biomedical Laboratory Science, Yonsei University, Wonju, 220–710, Republic of Korea
| | - Aeri Shim
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, 200–701, South Korea
| | - Eun-Hye Hong
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, 200–701, South Korea
| | - Yeon-Jeong Kim
- College of Pharmacy, Inje University, Gimhae, 621–749, South Korea
| | - Sang-Min Jeon
- College of Pharmacy, Ajou University, Suwon, 443–749, South Korea
| | - Sun-Young Chang
- College of Pharmacy, Ajou University, Suwon, 443–749, South Korea
| | - Dong-Eun Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience & Biotechnology, Cheongju, South Korea
| | - Sungchan Cho
- Anticancer Agent Research Center, Korea Research Institute of Bioscience & Biotechnology, Cheongju, South Korea
| | - Hyun-Jeong Ko
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, 200–701, South Korea
- * E-mail:
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Ma LL, Ge M, Wang HQ, Yin JQ, Jiang JD, Li YH. Antiviral Activities of Several Oral Traditional Chinese Medicines against Influenza Viruses. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2015; 2015:367250. [PMID: 26557857 PMCID: PMC4618326 DOI: 10.1155/2015/367250] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 09/04/2015] [Accepted: 09/07/2015] [Indexed: 12/25/2022]
Abstract
Influenza is still a serious threat to human health with significant morbidity and mortality. The emergence of drug-resistant influenza viruses poses a great challenge to existing antiviral drugs. Traditional Chinese medicines (TCMs) may be an alternative to overcome the challenge. Here, 10 oral proprietary Chinese medicines were selected to evaluate their anti-influenza activities. These drugs exhibit potent inhibitory effects against influenza A H1N1, influenza A H3N2, and influenza B virus. Importantly, they demonstrate potent antiviral activities against drug-resistant strains. In the study of mechanisms, we found that Xiaoqinglong mixture could increase antiviral interferon production by activating p38 MAPK, JNK/SAPK pathway, and relative nuclear transcription factors. Lastly, our studies also indicate that some of these medicines show inhibitory activities against EV71 and CVB strains. In conclusion, the 10 traditional Chinese medicines, as kind of compound combination medicines, show broad-spectrum antiviral activities, possibly also including inhibitory activities against strains resistant to available antiviral drugs.
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Affiliation(s)
- Lin-Lin Ma
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Miao Ge
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hui-Qiang Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jin-Qiu Yin
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jian-Dong Jiang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yu-Huan Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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Li X, Liu Y, Wu T, Jin Y, Cheng J, Wan C, Qian W, Xing F, Shi W. The Antiviral Effect of Baicalin on Enterovirus 71 In Vitro. Viruses 2015; 7:4756-71. [PMID: 26295407 PMCID: PMC4576202 DOI: 10.3390/v7082841] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 07/24/2015] [Accepted: 08/10/2015] [Indexed: 02/07/2023] Open
Abstract
Baicalin is a flavonoid compound extracted from Scutellaria roots that has been reported to possess antibacterial, anti-inflammatory, and antiviral activities. However, the antiviral effect of baicalin on enterovirus 71 (EV71) is still unknown. In this study, we found that baicalin showed inhibitory activity on EV71 infection and was independent of direct virucidal or prophylactic effect and inhibitory viral absorption. The expressions of EV71/3D mRNA and polymerase were significantly blocked by baicalin treatment at early stages of EV71 infection. In addition, baicalin could decrease the expressions of FasL and caspase-3, as well as inhibit the apoptosis of EV71-infected human embryonal rhabdomyosarcoma (RD) cells. Altogether, these results indicate that baicalin exhibits potent antiviral effect on EV71 infection, probably through inhibiting EV71/3D polymerase expression and Fas/FasL signaling pathways.
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Affiliation(s)
- Xiang Li
- Department of Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, 62 Huaihai south road, Huai'an, Jiangsu 223300, China.
- Department of Clinical Laboratory, the Third Affiliated Hospital of Soochow University, 185 Juqian street, Changzhou, Jiangsu 213003, China.
| | - Yuanyuan Liu
- Department of Endocrinology, Huai'an First Affliated Hospital of Nanjing Medical University, 6 Beijing west road, Huai'an, Jiangsu 223300, China.
| | - Tingting Wu
- Department of Clinical Laboratory, the Fourth People's Hospital of Huai'an, 128 Yanan east road, Huai'an, Jiangsu 223300, China.
| | - Yue Jin
- Department of Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, 62 Huaihai south road, Huai'an, Jiangsu 223300, China.
| | - Jianpin Cheng
- Department of Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, 62 Huaihai south road, Huai'an, Jiangsu 223300, China.
| | - Changbiao Wan
- Department of Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, 62 Huaihai south road, Huai'an, Jiangsu 223300, China.
| | - Weihe Qian
- Department of Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, 62 Huaihai south road, Huai'an, Jiangsu 223300, China.
| | - Fei Xing
- Department of Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, 62 Huaihai south road, Huai'an, Jiangsu 223300, China.
| | - Weifeng Shi
- Department of Clinical Laboratory, the Third Affiliated Hospital of Soochow University, 185 Juqian street, Changzhou, Jiangsu 213003, China.
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Apigenin restricts FMDV infection and inhibits viral IRES driven translational activity. Viruses 2015; 7:1613-26. [PMID: 25835532 PMCID: PMC4411668 DOI: 10.3390/v7041613] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/04/2015] [Accepted: 03/26/2015] [Indexed: 12/24/2022] Open
Abstract
Foot-and-mouth disease (FMD) is a highly contagious disease of domestic and wild ruminants that is caused by FMD virus (FMDV). FMD outbreaks have occurred in livestock-containing regions worldwide. Apigenin, which is a flavonoid naturally existing in plant, possesses various pharmacological effects, including anti-inflammatory, anticancer, antioxidant and antiviral activities. Results show that apigenin can inhibit FMDV-mediated cytopathogenic effect and FMDV replication in vitro. Further studies demonstrate the following: (i) apigenin inhibits FMDV infection at the viral post-entry stage; (ii) apigenin does not exhibit direct extracellular virucidal activity; and (iii) apigenin interferes with the translational activity of FMDV driven by internal ribosome entry site. Studies on applying apigein in vivo are required for drug development and further identification of potential drug targets against FDMV infection.
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Molecular docking of potential inhibitors for influenza H7N9. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2015; 2015:480764. [PMID: 25861376 PMCID: PMC4377397 DOI: 10.1155/2015/480764] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/22/2015] [Accepted: 02/22/2015] [Indexed: 01/06/2023]
Abstract
As a new strain of virus emerged in 2013, avian influenza A (H7N9) virus is a threat to the public health, due to its high lethality and pathogenicity. Furthermore, H7N9 has already generated various mutations such as neuraminidase R294K mutation which could make the anti-influenza oseltamivir less effective or ineffective. In this regard, it is urgent to develop new effective anti-H7N9 drug. In this study, we used the general H7N9 neuraminidase and oseltamivir-resistant influenza virus neuraminidase as the acceptors and employed the small molecules including quercetin, chlorogenic acid, baicalein, and oleanolic acid as the donors to perform the molecular docking for exploring the binding abilities between these small molecules and neuraminidase. The results showed that quercetin, chlorogenic acid, oleanolic acid, and baicalein present oseltamivir-comparable high binding potentials with neuraminidase. Further analyses showed that R294K mutation in neuraminidase could remarkably decrease the binding energies for oseltamivir, while other small molecules showed stable binding abilities with mutated neuraminidase. Taken together, the molecular docking studies identified four potential inhibitors for neuraminidase of H7N9, which might be effective for the drug-resistant mutants.
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Jang EJ, Cha SM, Choi SM, Cha JD. Combination effects of baicalein with antibiotics against oral pathogens. Arch Oral Biol 2014; 59:1233-41. [PMID: 25129811 DOI: 10.1016/j.archoralbio.2014.07.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 06/10/2014] [Accepted: 07/13/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Baicalein is one of the major flavonoids in Scutellaria baicalensis Georgi, which has long been used in Asia as herbal medicine. Several biological effects of baicalein, such as antiviral, anti-inflammatiom, anti-hepatotoxicity, and anti-tumour properties, have been reported. OBJECTIVE AND DESIGN In this study, the antibacterial activities of baicalein were investigated in combination with ampicillin and/or gentamicin against oral bacteria. RESULTS Baicalein was determined with MIC and MBC values ranging from 80 to 320 and 160 to 640 μg/mL against oral bacteria. The range of MIC₅₀ and MIC₉₀ were 20-160 μg/mL and 80-320 μg/mL, respectively. The combination effects of baicalein with antibiotics were synergistic (FIC index <0.375-0.5 and FBCI <0.5) against oral bacteria. Furthermore, a time-kill study showed that the growth of the tested bacteria was completely attenuated after 1-6 h of treatment with the MIC₅₀ of baicalein, regardless of whether it was administered alone or with ampicillin or gentamicin. CONCLUSION These results suggest that baicalein combined with other antibiotics may be microbiologically beneficial and not antagonistic.
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Affiliation(s)
- Eun-Jin Jang
- Department of Dental Technology, Daegu Health College, Daegu, South Korea
| | - Su-Mi Cha
- Department of Oral Microbiology and Institute of Oral Bioscience, Chonbuk National University, Jeonju, South Korea
| | - Sung-Mi Choi
- Department of Dental Hygiene, Daegu Health College, Daegu, South Korea
| | - Jeong-Dan Cha
- Department of Natural Product Research, Institute of Jinan red ginseng, Jinan, South Korea.
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Evaluation of direct antiviral activity of the Deva-5 herb formulation and extracts of five Asian plants against influenza A virus H3N8. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 14:235. [PMID: 25012588 PMCID: PMC4227079 DOI: 10.1186/1472-6882-14-235] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 06/23/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND The herb formulation Deva-5 is used in traditional medicine to treat acute infectious diseases. Deva-5 is composed of five herbs: Gentiana decumbens L., Momordica cochinchinensis L., Hypecoum erectum L., Polygonum bistorta L., and Terminalia chebula Retz. Deva-5 and its five components were investigated for in vitro antiviral activity against avian influenza A virus subtype H3N8. METHODS The water extracts of the herbal parts of G. decumbens, H. erectum and P. bistorta, the seeds of T. chebula and M. cochinchinensis and Deva-5 were prepared by boiling and clarified by low-speed centrifugation and filtration. To assess the antiviral properties, avian influenza virus isolate A/Teal/Tunka/7/2010(H3N8) was incubated at 37°C for 30 min in the presence and absence of the extracts of five plants and DEVA-5 in various concentrations. Subsequently, the concentration of infectious virus in each sample was determined by plaque assays. Neutralisation indexes and 90% plaque reduction concentrations were estimated for each extract, and the significance of the data was evaluated using statistical methods. RESULTS The extracts of G. decumbens, H. erectum, P. bistorta and Deva-5 demonstrated no significant toxicity at concentrations up to 2%, whereas extracts of T. chebula and M. cochinchinensis were well-tolerated by Madin-Darby canine kidney cells at concentrations up to 1%. The extracts of H. erectum, M. cochinchinensis and T. chebula reduced the titre of A/Teal/Tunka/7/2010 (H3N8) by approximately five-fold (p ≤ 0.05). The other three extracts did not significantly reduce the infectivity of the virus. The plaque reduction neutralisation tests revealed that none of the extracts tested were able to inhibit formation of plaques by 90%. However, three extracts, H. erectum, T. chebula and M. cochinchinensis, were able to inhibit formation of plaques by more than 50% at low dilutions from 1:3 to 1:14. The T. chebula extract had a concentration-dependent inhibitory effect. CONCLUSIONS For the first time, the consistent direct antiviral action of the extracts of H. erectum, T. chebula and M. cochinchinensis was detected. These extracts significantly reduced the infectivity of influenza A virus H3N8 in vitro when used at high concentrations (0.5-1%). However, Deva-5 itself and the remainder of its components did not exhibit significant antiviral action. The results suggest that H. erectum, T. chebula and M. cochinchinensis plants contain substances with direct antiviral activity and could be promising sources of new antiviral drugs.
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Watanabe K, Rahmasari R, Matsunaga A, Haruyama T, Kobayashi N. Anti-influenza viral effects of honey in vitro: potent high activity of manuka honey. Arch Med Res 2014; 45:359-65. [PMID: 24880005 DOI: 10.1016/j.arcmed.2014.05.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 03/14/2014] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND AIMS Influenza viruses are a serious threat to human health and cause thousands of deaths annually. Thus, there is an urgent requirement for the development of novel anti-influenza virus drugs. Therefore, the aim of this study was to evaluate the anti-influenza viral activity of honey from various sources. METHODS Antiviral activities of honey samples were evaluated using MDCK cells. To elucidate the possible mechanism of action of honey, plaque inhibition assays were used. Synergistic effects of honey with known anti-influenza virus drugs such as zanamivir or oseltamivir were tested. RESULTS Manuka honey efficiently inhibited influenza virus replication (IC50 = 3.6 ± 1.2 mg/mL; CC50 = 82.3 ± 2.2 mg/mL; selective index = 22.9), which is related to its virucidal effects. In the presence of 3.13 mg/mL manuka honey, the IC50 of zanamivir or oseltamivir was reduced to nearly 1/1000th of their single use. CONCLUSIONS Our results showed that honey, in general, and particularly manuka honey, has potent inhibitory activity against the influenza virus, demonstrating a potential medicinal value.
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Affiliation(s)
- Ken Watanabe
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Ratika Rahmasari
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Ayaka Matsunaga
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | | | - Nobuyuki Kobayashi
- Laboratory of Molecular Biology of Infectious Agents, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; Central Research Center, AVSS Corporation, Nagasaki, Japan.
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