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Tang WD, Zhu WY, Tang HL, Zhao P, Zhao LJ. Engagement of AKT and ERK signaling pathways facilitates infection of human neuronal cells with West Nile virus. J Virus Erad 2024; 10:100368. [PMID: 38601702 PMCID: PMC11004658 DOI: 10.1016/j.jve.2024.100368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
West Nile virus (WNV) is an important neurotropic virus that accounts for the emergence of human arboviral encephalitis and meningitis. The interaction of WNV with signaling pathways plays a key role in controlling WNV infection. We have investigated the roles of the AKT and ERK pathways in supporting WNV propagation and modulating the inflammatory response following WNV infection. WNV established a productive infection in neuronal cell lines originated from human and mouse. Expression of IL-11 and TNF-α was markedly up-regulated in the infected human neuronal cells, indicating elicitation of inflammation response upon WNV infection. WNV incubation rapidly activated signaling cascades of AKT (AKT-S6-4E-BP1) and ERK (MEK-ERK-p90RSK) pathways. Treatment with AKT inhibitor MK-2206 or MEK inhibitor U0126 abrogated WNV-induced AKT or ERK activation. Strong activation of AKT and ERK signaling pathways could be detectable at 24 h after WNV infection, while such activation was abolished at 48 h post infection. U0126 treatment or knockdown of ERK expression significantly increased WNV RNA levels and viral titers and efficiently decreased IL-11 production induced by WNV, suggesting the involvement of ERK pathway in WNV propagation and IL-11 induction. MK-2206 treatment enhanced WNV RNA replication accompanied with a moderate decrease in IL-11 production. These results demonstrate that engagement of AKT and ERK signaling pathways facilitates viral infection and may be implicated in WNV pathogenesis.
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Affiliation(s)
- Wan-Da Tang
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Faculty of Naval Medicine, Naval Medical University, 200433, Shanghai, China
| | - Wei-Yang Zhu
- The 16th Student Brigade, College of Basic Medicine, Naval Medical University, 200433, Shanghai, China
| | - Hai-Lin Tang
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Faculty of Naval Medicine, Naval Medical University, 200433, Shanghai, China
| | - Ping Zhao
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Faculty of Naval Medicine, Naval Medical University, 200433, Shanghai, China
| | - Lan-Juan Zhao
- Department of Microbiology, Shanghai Key Laboratory of Medical Biodefense, Faculty of Naval Medicine, Naval Medical University, 200433, Shanghai, China
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Tang WD, Tang HL, Peng HR, Ren RW, Zhao P, Zhao LJ. Inhibition of tick-borne encephalitis virus in cell cultures by ribavirin. Front Microbiol 2023; 14:1182798. [PMID: 37378295 PMCID: PMC10291047 DOI: 10.3389/fmicb.2023.1182798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Tick-borne encephalitis virus (TBEV) belonging to arboviruses is a major member of zoonotic pathogens. TBEV infection causes severe human encephalitis without specific antiviral drugs. Due to its use of antiviral drug against a wide range of viruses, we investigated antiviral effect of ribavirin against TBEV in susceptible human cell lines A549 and SH-SY5Y. Ribavirin displayed minor cytotoxicity on multiple cell lines. Ribavirin obviously impaired TBEV replication and protected the infected cells from cytopathic effect. Importantly, ribavirin markedly inhibited TBEV propagation, as evidenced by impairment of TBEV production and viral RNA replication. Treatment with ribavirin (co-treatment and post-treatment) led to a dose-dependent reduction in TBEV titers as well as the viral RNA levels. Antiviral protein myxovirus resistance A mRNA expression was significantly up-regulated and signal transducer and activator of transcription 3 was activated in TBEV-infected A549 cells upon the ribavirin treatment. Induction of inflammatory cytokine tumor necrosis factor alpha by TBEV was decreased in A549 cells with the treatment of ribavirin, whereas interleukin 1 beta release appeared to be unaffected. These results suggest that ribavirin might represent a promising safe and effective antiviral drug against TBEV.
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Affiliation(s)
- Wan-Da Tang
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Hai-Lin Tang
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Hao-Ran Peng
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Rui-Wen Ren
- Center for Disease Control and Prevention of Southern Theater Command, Guangzhou, China
| | - Ping Zhao
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Lan-Juan Zhao
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
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Qian XJ, Zhou HY, Liu Y, Dong JX, Tang WD, Zhao P, Tang HL, Jin YS. Synthesis of baicalein derivatives and evaluation of their antiviral activity against arboviruses. Bioorg Med Chem Lett 2022; 72:128863. [PMID: 35738350 DOI: 10.1016/j.bmcl.2022.128863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/09/2022] [Accepted: 06/16/2022] [Indexed: 11/19/2022]
Abstract
Natural plant-derived baicalein which is extracted from Chinese herb Scutellaria baicalensis Georgi belongs to the flavonoid compounds and possesses multiple pharmacological activities. In this study, we designed and synthesized new series of derivatives of baicalein (BE) through catalytic coupling reactions, and screened for their antiviral activity against arboviruses including Chikungunya virus (CHIKV), West Nile virus (WNV) or Zika virus (ZIKV). Our results revealed for the first time that BE and its derivatives had potent anti-CHIKV, anti-WNV and anti-ZIKV effects. And modification of 8 or 4' position could lead to obtain potent antiviral compounds against CHIKV, WNV and ZIKV with lower cytotoxicity. Among the baicalein derivatives, C3 and F3 showed the most potent antiviral activities against CHIKV, WNV and ZIKV, which were 5-10 times more potent than baicalein. Our findings will provide research basis for the development of baicalein derivatives as effective antiviral agents.
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Affiliation(s)
- Xi-Jing Qian
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - He-Yang Zhou
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Yan Liu
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Jia-Xiao Dong
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Wan-Da Tang
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Ping Zhao
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Hai-Lin Tang
- Department of Microbiology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China.
| | - Yong-Sheng Jin
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China.
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4
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Liu TT, Ye FC, Pang CP, Yong TQ, Tang WD, Xiao J, Shang CH, Lu ZJ. Isolation and identification of bioactive substance 1-hydroxyphenazine from Pseudomonas aeruginosa and its antimicrobial activity. Lett Appl Microbiol 2020; 71:303-310. [PMID: 32449160 DOI: 10.1111/lam.13332] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/05/2020] [Accepted: 05/18/2020] [Indexed: 12/20/2022]
Abstract
A strain named as Pseudomonas aeruginosa 2016NX1, which could produce phenazine and cereusitin, was isolated from the root of Millettia specisoa. Phenazines were extracted, isolated and purified by chloroform, thin-layer chromatography, column chromatography and high-performance liquid chromatography. Then the purified materials were identified by analysis of nuclear magnetic resonance. The major yellow component is 1-hydroxyphenazine and the minor blue component is cereusitin A. The tests of antimicrobial activity of yellow component showed that the growth of several common plant pathogenic fungi and bacteria (such as Cochliobolus miyabeanus, Diaporthe citri, Salmonella sp., Klebsiella oxytoca) could be strongly inhibited. This study suggested that Pseudomonas aeruginosa strain 2016NX1 had a significant potential for biological control of phytopathogenic fungi. SIGNIFICANCE AND IMPACT OF THE STUDY: In this study, one bioactive substance from Pseudomonas aeruginosa 2016NX1 was identified and its antimicrobial activity was verified. This study demonstrated that one bioactive substance from P. aeruginosa can strongly inhibit the growth of plant pathogenic fungi and bacteria. This study suggested that P. aeruginosa strain 2016NX1 has a significant potential for biological control of phytopathogenic fungi.
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Affiliation(s)
- T T Liu
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
| | - F C Ye
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
| | - C P Pang
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
| | - T Q Yong
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - W D Tang
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
| | - J Xiao
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
| | - C H Shang
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
| | - Z J Lu
- College of Life Science, Guangxi Normal University, Guilin, Guangxi, China.,Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin, Guangxi, China
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Wang CL, Liu S, Chen QJ, Shao ZJ, Wu JF, Fan Z, Wang PG, Zhu ZG, Lan P, Li JG, Zheng YS, He WB, Xu Z, Tang WD, Pang JM, Ban ZH, Yang SQ, Ding WT, Zheng XF, Zhang QL. [Specifications for diagnosis and treatment of non-neonatal tetanus]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:162-166. [PMID: 32164123 DOI: 10.3760/cma.j.issn.0254-6450.2020.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Tetanus consists of neonatal tetanus and non-neonatal tetanus. Non-neonatal tetanus remains a serious public health problem, although neonatal tetanus has been eliminated in China since 2012. Non-neonatal tetanus is a potential fatal disease. In the absence of medical intervention, the mortality rate of severe cases is almost 100%. Even with vigorous treatment, the mortality rate is still 30%-50% globally. These specifications aim to regulate non-neonatal tetanus diagnosis and treatment in China, in order to improve medical quality and safety. These specifications introduce the etiology, epidemiology, pathogenesis, clinical manifestations and laboratory tests, diagnosis, differential diagnosis, grading and treatment of non-neonatal tetanus.
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Affiliation(s)
- C L Wang
- Emergency Department/Trauma Center, Peking University People's Hospital, Beijing 100044, China
| | - S Liu
- Emergency Department, First Hospital of Peking University, Beijing 100034, China
| | - Q J Chen
- Emergency Department, Beijing Hepingli Hospital, Beijing 100013, China
| | - Z J Shao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J F Wu
- Surgical Department, Shijiazhuang Fifth Hospital, Shijiazhuang 050021, China
| | - Z Fan
- Emergency Department, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - P G Wang
- Emergency Department, The Affiliate Hospital of Qingdao University, Qingdao 266003, China
| | - Z G Zhu
- Rabies Clinic, Wuhan Center for Disease Control and Prevention, Wuhan 430015, China
| | - P Lan
- Department of Emergency, Lishui Hospital,Zhejiang University School of Medicine, Lishui 323000, China
| | - J G Li
- Emergency Department, Hebei General Hospital, Shijiazhuang 050051, China
| | - Y S Zheng
- Department of Critical Care Medicine, The Second Hospital of Nanjing, Nanjing 210003, China
| | - W B He
- Provincial Clinical Medical College, Fujian Medical University, Fuzhou 350001, China
| | - Z Xu
- Centre of Infectious Diseases, The Fifth Medical Centre, PLA General Hospital,Beijing 100039, China
| | - W D Tang
- Suzhou Road Hospital, Xinjiang Autonomous Region People's Hospital, Department of Orthopedics, Urumqi 830000, China
| | - J M Pang
- Thyroid and Breast Surgery, the Third Hospital of Jinan, Jinan 250132, China
| | - Z H Ban
- Emergency Department, Guangxi International Zhuang Medicine Hospital, Nanning 530200, China
| | - S Q Yang
- Emergency Department, Chongqing Emergency Medical Center/Central Hospital of Chongqing University, Chongqing 400014, China
| | - W T Ding
- Department of General Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - X F Zheng
- Department of Orthopedic Surgery, First Affiliated Hospital, Dalian Medical University, Dalian 116011, China
| | - Q L Zhang
- Department of Emergency and Critical Care Medicine, the Jiangxi Chest Hospital, Nanchang 330006, China
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Wang CL, Liu S, Chen QJ, Shao ZJ, Wu JF, Fan Z, Wang PG, Zhu ZG, Lan P, Li JG, Zheng YS, He WB, Xu Z, Tang WD, Pang JM, Ban ZH, Yang SQ, Ding WT, Zheng XF, Zhang QL. [Specifications for diagnosis and treatment of non-neonatal tetanus]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:1206-1211. [PMID: 31795576 DOI: 10.3760/cma.j.issn.0253-9624.2019.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Tetanus consists of neonatal tetanus and non-neonatal tetanus. Although neonatal tetanus in China has been eliminated since 2012, non-neonatal tetanus remains a serious public health problem. Non-neonatal tetanus is a potential fatal disease, and the mortality rate of severe cases is almost 100% in the absence of medical intervention. Even with vigorous treatment, the mortality rate is still 30~50% globally. In order to standardize the diagnosis and treatment of non-neonatal tetanus in China, this specification is hereby formulated. This standard includes etiology, epidemiology, pathogenesis, clinical manifestations, laboratory tests, diagnosis, differential diagnosis, classification, grading and treatment of non-neonatal tetanus.
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Affiliation(s)
- C L Wang
- Emergency Department/Trauma Center, Peking University People's Hospital, Beijing 100044, China
| | - S Liu
- Department of Emergency, Peking University First Hospital, Beijing 100034, China
| | - Q J Chen
- Emergency Department, Beijing Hepingli Hospital, Beijing 100013, China
| | - Z J Shao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J F Wu
- Surgical Department, Shijiazhuang Fifth Hospital, Shijiazhuang 050021, China
| | - Z Fan
- Emergency Department, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - P G Wang
- Emergency Department, The Affiliate Hospital of Qingdao University, Qingdao 266003, China
| | - Z G Zhu
- Wuhan Center for Disease Control and Prevention, Wuhan 430015, China
| | - P Lan
- Department of Emergency, Lishui Hospital, Zhejiang University School of Medicine, Lishui 323000, China
| | - J G Li
- Emergency Department, Hebe general hospital, Shijiazhuang 050051, China
| | - Y S Zheng
- Department of Critical Care Medicine, The Second Hospital of Nanjing, Nanjing 210003 China
| | - W B He
- Provincial clinical medical college, Fujian medical university, Fuzhou 350001, China
| | - Z Xu
- The centre of infectious diseases, the Fifth medical centre, PLA general hospital, Beijing100039, China
| | - W D Tang
- Suzhou Road Hospital, Xinjiang Autonomous Region People's Hospital, Department of Orthopedics, Urumqi 830000, China
| | - J M Pang
- Thyroid and breast surgery, The thirdhospital of Jinan, Jinan 250132, China
| | - Z H Ban
- Emergency Department, Guangxi International Zhuang Medicine Hospital, Nanning 530200, China
| | - S Q Yang
- Emergency Department, Chongqing Emergency Medical Center/Central Hospital of Chongqing University, Chongqing 400014, China
| | - W T Ding
- Department of General Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - X F Zheng
- Department of Orthopedic Surgery, First Affiliated Hospital, Dalian Medical University, Dalian 116011, China
| | - Q L Zhang
- Department of Emergency and Critical Care Medicine, The Jiangxi chest hospital, Nanchang 330006, China
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7
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Tu ZH, Wang MY, Xiao WQ, Qi XD, Tang WD. [Effects of 10-hydroxycamptothecin on induced chromosome aberrations in Chinese hamster ovary cells and micronuclei in mouse bone marrow and fetal liver]. Zhongguo Yao Li Xue Bao 1990; 11:378-81. [PMID: 2104494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
10-Hydroxycamptothecin (HC) is a new antitumor principle isolated from Camptotheca acuminata indigenous to China. The genetic toxicity of HC was assessed by mouse bone marrow and transplacental micronucleus test as well as Chinese hamster ovary cell chromosomal aberrations. All of these tests showed positive results. The highest rate of chromosomal aberrations was 83% at 0.125 microgram/ml for 48 h. The number of micronucleated polychromatic erythrocytes in bone marrow of mice was remarkably increased in 19.8% cells at 12.5 mg/kg for 24 h. The micronucleus formation was most often seen at 16 h after im HC in fetal liver and 24 h in maternal bone marrow. The peaks were 36 +/- 19 and 31 +/- 10%, respectively. The results from in vivo and in vitro suggest HC is a mutagen, furthermore, a transplacental mutagen in mouse.
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Affiliation(s)
- Z H Tu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences
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