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Wu M, Wan Q, Dan X, Wang Y, Chen P, Chen C, Li Y, Yao X, He ML. Targeting Ser78 phosphorylation of Hsp27 achieves potent antiviral effects against enterovirus A71 infection. Emerg Microbes Infect 2024; 13:2368221. [PMID: 38932432 PMCID: PMC11212574 DOI: 10.1080/22221751.2024.2368221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
A positive-sense (+) single-stranded RNA (ssRNA) virus (e.g. enterovirus A71, EV-A71) depends on viral polypeptide translation for initiation of virus replication after entry. We reported that EV-A71 hijacks Hsp27 to induce hnRNP A1 cytosol redistribution to initiate viral protein translation, but the underlying mechanism is still elusive. Here, we show that phosphorylation-deficient Hsp27-3A (Hsp27S15/78/82A) and Hsp27S78A fail to translocate into the nucleus and induce hnRNP A1 cytosol redistribution, while Hsp27S15A and Hsp27S82A display similar effects to the wild type Hsp27. Furthermore, we demonstrate that the viral 2A protease (2Apro) activity is a key factor in regulating Hsp27/hnRNP A1 relocalization. Hsp27S78A dramatically decreases the IRES activity and viral replication, which are partially reduced by Hsp27S82A. However, Hsp27S15A displays the same activity as the wild-type Hsp27. Peptide S78 potently suppresses EV-A71 protein translation and reproduction through blockage of EV-A71-induced Hsp27 phosphorylation and Hsp27/hnRNP A1 relocalization. A point mutation (S78A) on S78 impairs its inhibitory functions on Hsp27/hnRNP A1 relocalization and viral replication. Taken together, we demonstrate the importance of Ser78 phosphorylation of Hsp27 regulated by virus infection in nuclear translocation, hnRNP A1 cytosol relocation, and viral replication, suggesting a new path (such as peptide S78) for target-based antiviral strategy.
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Affiliation(s)
- Mandi Wu
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Qianya Wan
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Xuelian Dan
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
- Department of Infectious Diseases, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yiran Wang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Peiran Chen
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Cien Chen
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Yichen Li
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Xi Yao
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
| | - Ming-Liang He
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China
- CityU Shenzhen Research Institute, Shenzhen, People’s Republic of China
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Chi F, Liu X, Li J, Guo M, Zhang Z, Zhou H, Carr MJ, Li Y, Shi W. Doxycycline inhibits neurotropic enterovirus proliferation in vitro. Virus Res 2024; 345:199388. [PMID: 38714218 PMCID: PMC11127601 DOI: 10.1016/j.virusres.2024.199388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/10/2024] [Accepted: 05/03/2024] [Indexed: 05/09/2024]
Abstract
Human enteroviruses (EVs) represent a global public health concern due to their association with a range of serious pediatric illnesses. Despite the high morbidity and mortality exerted by EVs, no broad-spectrum antivirals are currently available. Herein, we presented evidence that doxycycline can inhibit in vitro replication of various neurotropic EVs, including enterovirus A71 (EV-A71), enterovirus D68 (EV-D68), and coxsackievirus (CV)-A6, in a dose-dependent manner. Further investigations indicated that the drug primarily acted at the post-entry stage of virus infection in vitro, with inhibitory effects reaching up to 89 % for EV-A71 when administered two hours post-infection. These findings provide valuable insights for the development of antiviral drugs against EV infections.
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Affiliation(s)
- Fengyu Chi
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250117, China; Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271000, China
| | - Xinzhuo Liu
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250117, China; Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271000, China
| | - Juan Li
- School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250117, China
| | - Moujian Guo
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhenjie Zhang
- School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250117, China
| | - Hong Zhou
- School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250117, China
| | - Michael J Carr
- National Virus Reference Laboratory, School of Medicine, University College Dublin, D04 E1W1, Ireland; International Collaboration Unit, International Institute for Zoonosis Control, Hokkaido University, Sapporo 001-0020, Japan
| | - Yuming Li
- School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250117, China; Key Laboratory of Emerging Infectious Diseases in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271000, China.
| | - Weifeng Shi
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Shanghai Institute of Virology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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Hu Y, Zhao W, Lv Y, Li H, Li J, Zhong M, Pu D, Jian F, Song J, Zhang Y. NLRP3-dependent pyroptosis exacerbates coxsackievirus A16 and coxsackievirus A10-induced inflammatory response and viral replication in SH-SY5Y cells. Virus Res 2024; 345:199386. [PMID: 38705479 PMCID: PMC11091677 DOI: 10.1016/j.virusres.2024.199386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Coxsackievirus A16 (CV-A16) and coxsackievirus A10 (CV-A10), more commonly etiological agents of hand, foot and mouth disease (HFMD), are capable of causing severe neurological syndromes with high fatalities, but their neuropathogenesis has rarely been studied. Mounting evidence indicated that pyroptosis is an inflammatory form of cell death that might be widely involved in the pathogenic mechanisms of neurotropic viruses. Our study was designed to examine the effects of NLRP3-mediated pyroptosis in CV-A16- and CV-A10-induced inflammatory neuropathologic formation. In this work, it was showed that SH-SY5Y cells were susceptible to CV-A16 and CV-A10, and meanwhile their infections could result in a decreasing cell viability and an increasing LDH release as well as Caspase1 activation. Moreover, CV-A16 and CV-A10 infections triggered NLRP3-mediated pyroptosis and promoted the release of inflammatory cytokines. Additionally, activated NLRP3 accelerated the pyroptosis formation and aggravated the inflammatory response, but inhibited NLRP3 had a dampening effect on the above situation. Finally, it was further revealed that NLRP3 agonist enhanced the viral replication, but NLRP3 inhibitor suppressed the viral replication, suggesting that NLRP3-driven pyroptosis might support CV-A16 and CV-A10 production in SH-SY5Y cells. Together, our findings demonstrated a mechanism by which CV-A16 and CV-A10 induce inflammatory responses by evoking NLRP3 inflammasome-regulated pyroptosis, which in turn further stimulated the viral replication, providing novel insights into the pathogenesis of CV-A16 and CV-A10 infections.
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Affiliation(s)
- Yajie Hu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Wei Zhao
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yaming Lv
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Hui Li
- National and Local Engineering Center for Infectious Biological Products, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Jiang Li
- National and Local Engineering Center for Infectious Biological Products, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China
| | - Mingmei Zhong
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Dandan Pu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Fuping Jian
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jie Song
- National and Local Engineering Center for Infectious Biological Products, Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.
| | - Yunhui Zhang
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.
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Li Y, Ruan Y, Zhai X, Ye J, Xiao Y, Liang J, Zhu N. Frontiers and hotspots in hand, foot, and mouth disease research during 2006 to 2023: A bibliometric and visual analysis. Medicine (Baltimore) 2024; 103:e38550. [PMID: 38875391 PMCID: PMC11175905 DOI: 10.1097/md.0000000000038550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/16/2024] Open
Abstract
BACKGROUND Enteroviruses-infected hand, foot, and mouth disease (HFMD) seriously threatens human health. This study aimed to analyze the research status, hotspots, and frontiers of HFMD. METHODS Publications on HFMD between January 1, 2006, and January 31, 2023, were retrieved from the Web of Science Core database. Bibliometric tools, including CiteSpace, VOSviewer, R package "Bibiometrix," SCImago Graphica, and Charticulator, were utilized to analyze and visualize the data. RESULTS A total of 1860 articles from 424 journals, involving 8815 authors from 64 countries and 1797 institutions were analyzed. The number of studies on HFMD has shown an increasing trend over the past 18 years, with an annual increase observed since 2006, which is particularly prominent after 2010. Research in this field has centered on the Asian region. Notably, the research hotspots were mainly focused on vaccines, epidemiology, and pathogenesis of HFMD. Among the researchers in this field, Zhang Yong emerged as the most prolific author, while Xu Wenbo had the most significant influence. The Chinese Academy of Sciences was the most productive institution, and China was the most productive country for HFMD research. CONCLUSION By bibliometric analysis, researchers in the HMFD field can efficiently identify and visually represent their research focus and limitations. In the future, it is crucial to maintain ongoing surveillance of HFMD outbreaks and their pathogenic changes. Additionally, future research should extensively explore the molecular mechanisms underlying Enteroviruses-induced HFMD with a focus on developing vaccines and therapies.
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Affiliation(s)
- Yunzhi Li
- Key Laboratory of Environmental Related Diseases and One Health, School of Basic Medicine Sciences/School of Pharmacy/National Demonstration Center for Experimental (General Practice) Education, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
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Dai B, Chen Y, Han S, Chen S, Wang F, Feng H, Zhang X, Li W, Chen S, Yang H, Duan G, Li G, Jin Y. Epidemiology and etiology of hand, foot, and mouth disease in Zhengzhou, China, from 2009 to 2021. INFECTIOUS MEDICINE 2024; 3:100114. [DOI: 10.1016/j.imj.2024.100114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
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Volobueva AS, Fedorchenko TG, Lipunova GN, Valova MS, Sbarzaglia VA, Gladkikh AS, Kanaeva OI, Tolstykh NA, Gorshkov AN, Zarubaev VV. Leucoverdazyls as Novel Potent Inhibitors of Enterovirus Replication. Pathogens 2024; 13:410. [PMID: 38787262 PMCID: PMC11123948 DOI: 10.3390/pathogens13050410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024] Open
Abstract
Enteroviruses (EV) are important pathogens causing human disease with various clinical manifestations. To date, treatment of enteroviral infections is mainly supportive since no vaccination or antiviral drugs are approved for their prevention or treatment. Here, we describe the antiviral properties and mechanisms of action of leucoverdazyls-novel heterocyclic compounds with antioxidant potential. The lead compound, 1a, demonstrated low cytotoxicity along with high antioxidant and virus-inhibiting activity. A viral strain resistant to 1a was selected, and the development of resistance was shown to be accompanied by mutation of virus-specific non-structural protein 2C. This resistant virus had lower fitness when grown in cell culture. Taken together, our results demonstrate high antiviral potential of leucoverdazyls as novel inhibitors of enterovirus replication and support previous evidence of an important role of 2C proteins in EV replication.
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Affiliation(s)
| | - Tatyana G. Fedorchenko
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22/20 S. Kovalevskoi St., Yekaterinburg 620108, Russia
| | - Galina N. Lipunova
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22/20 S. Kovalevskoi St., Yekaterinburg 620108, Russia
| | - Marina S. Valova
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22/20 S. Kovalevskoi St., Yekaterinburg 620108, Russia
| | | | - Anna S. Gladkikh
- St. Petersburg Pasteur Institute, 14 Mira St., St. Petersburg 197101, Russia
| | - Olga I. Kanaeva
- St. Petersburg Pasteur Institute, 14 Mira St., St. Petersburg 197101, Russia
| | - Natalia A. Tolstykh
- St. Petersburg Pasteur Institute, 14 Mira St., St. Petersburg 197101, Russia
| | - Andrey N. Gorshkov
- Smorodintsev Influenza Research Institute, 15/17 Prof. Popova St., St. Petersburg 197376, Russia
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7
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Hu Y, Zhong M, Lv Y, Zhao W, Qian B, Song J, Zhang Y. MST1/2 exerts a pivotal role in inducing neuroinflammation and Coxsackievirus-A10 replication by interacting with innate immunity. Virol J 2024; 21:89. [PMID: 38641810 PMCID: PMC11031903 DOI: 10.1186/s12985-024-02355-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/01/2024] [Indexed: 04/21/2024] Open
Abstract
Coxsackievirus-A10 (CV-A10), responsible for the hand, foot and mouth disease (HFMD) pandemic, could cause serious central nervous system (CNS) complications. The underlying molecular basis of CV-A10 and host interactions inducing neuropathogenesis is still unclear. The Hippo signaling pathway, historically known for a dominator of organ development and homeostasis, has recently been implicated as an immune regulator. However, its role in host defense against CV-A10 has not been investigated. Herein, it was found that CV-A10 proliferated in HMC3 cells and promoted the release of inflammatory cytokines. Moreover, pattern recognition receptors (PRRs)-mediated pathways, including TLR3-TRIF-TRAF3-TBK1-NF-κB axis, RIG-I/MDA5-MAVS-TRAF3-TBK1-NF-κB axis and TLR7-MyD88-IRAK1/IRAK4-TRAF6-TAK1-NF-κB axis, were examined to be elevated under CV-A10 infection. Meanwhile, it was further uncovered that Hippo signaling pathway was inhibited in HMC3 cells with CV-A10 infection. Previous studies have been reported that there exist complex relations between innate immune and Hippo signaling pathway. Then, plasmids of knockdown and overexpression of MST1/2 were transfected into HMC3 cells. Our results showed that MST1/2 suppressed the levels of inflammatory cytokines via interacting with TBK1 and IRAK1, and also enhanced virus production via restricting IRF3 and IFN-β expressions. Overall, these data obviously pointed out that CV-A10 accelerated the formation of neuroinflammation by the effect of the Hippo pathway on the PRRs-mediated pathway, which delineates a negative immunoregulatory role for MST1/2 in CV-A10 infection and the potential for this pathway to be pharmacologically targeted to treat CV-A10.
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Affiliation(s)
- Yajie Hu
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Minigmei Zhong
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Yaming Lv
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Wei Zhao
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Baojiang Qian
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Jie Song
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, China.
| | - Yunhui Zhang
- Department of Respiratory Medicine, The First People's Hospital of Yunnan Province, Kunming, China.
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China.
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Zhang QY, Li JQ, Li Q, Zhang Y, Zhang ZR, Li XD, Zhang HQ, Deng CL, Yang FX, Xu Y, Zhang B. Identification of fangchinoline as a broad-spectrum enterovirus inhibitor through reporter virus based high-content screening. Virol Sin 2024; 39:301-308. [PMID: 38452856 DOI: 10.1016/j.virs.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 02/26/2024] [Indexed: 03/09/2024] Open
Abstract
Hand, foot, and mouth disease (HFMD) is a common pediatric illness mainly caused by enteroviruses, which are important human pathogens. Currently, there are no available antiviral agents for the therapy of enterovirus infection. In this study, an excellent high-content antiviral screening system utilizing the EV-A71-eGFP reporter virus was developed. Using this screening system, we screened a drug library containing 1042 natural compounds to identify potential EV-A71 inhibitors. Fangchinoline (FAN), a bis-benzylisoquinoline alkaloid, exhibits potential inhibitory effects against various enteroviruses that cause HFMD, such as EV-A71, CV-A10, CV-B3 and CV-A16. Further investigations revealed that FAN targets the early stage of the enterovirus life cycle. Through the selection of FAN-resistant EV-A71 viruses, we demonstrated that the VP1 protein could be a potential target of FAN, as two mutations in VP1 (E145G and V258I) resulted in viral resistance to FAN. Our research suggests that FAN is an efficient inhibitor of EV-A71 and has the potential to be a broad-spectrum antiviral drug against human enteroviruses.
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Affiliation(s)
- Qiu-Yan Zhang
- The Joint Center of Translational Precision Medicine, Department of Infections and Diseases, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, China; Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Jia-Qi Li
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Qi Li
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Yang Zhang
- University of Science and Technology of China, Department of Life Sciences and Medicine, Hefei, 230026, China
| | - Zhe-Rui Zhang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Xiao-Dan Li
- Hunan Normal University, School of Medicine, Changsha, 410081, China
| | - Hong-Qing Zhang
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Cheng-Lin Deng
- Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Feng-Xia Yang
- The Joint Center of Translational Precision Medicine, Department of Infections and Diseases, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, China
| | - Yi Xu
- The Joint Center of Translational Precision Medicine, Department of Infections and Diseases, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, China.
| | - Bo Zhang
- The Joint Center of Translational Precision Medicine, Department of Infections and Diseases, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou, 510623, China; Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, China.
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Chen Y, Nguyet LA, Nhan LNT, Qui PT, Nhu LNT, Hong NTT, Ny NTH, Anh NT, Thanh LK, Phuong HT, Vy NHT, Thanh NTL, Khanh TH, Hung NT, Viet DC, Nam NT, Chau NVV, van Doorn HR, Tan LV, Clapham H. Age-time-specific transmission of hand-foot-and-mouth disease enterovirus serotypes in Vietnam: A catalytic model with maternal immunity. Epidemics 2024; 46:100754. [PMID: 38428358 PMCID: PMC10945305 DOI: 10.1016/j.epidem.2024.100754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/05/2024] [Accepted: 02/24/2024] [Indexed: 03/03/2024] Open
Abstract
Hand, foot and mouth disease (HFMD) is highly prevalent in the Asia Pacific region, particularly in Vietnam. To develop effective interventions and efficient vaccination programs, we inferred the age-time-specific transmission patterns of HFMD serotypes enterovirus A71 (EV-A71), coxsackievirus A6 (CV-A6), coxsackievirus A10 (CV-A10), coxsackievirus A16 (CV-A16) in Ho Chi Minh City, Vietnam from a case data collected during 2013-2018 and a serological survey data collected in 2015 and 2017. We proposed a catalytic model framework with good adaptability to incorporate maternal immunity using various mathematical functions. Our results indicate the high-level transmission of CV-A6 and CV-A10 which is not obvious in the case data, due to the variation of disease severity across serotypes. Our results provide statistical evidence supporting the strong association between severe illness and CV-A6 and EV-A71 infections. The HFMD dynamic pattern presents a cyclical pattern with large outbreaks followed by a decline in subsequent years. Additionally, we identify the age group with highest risk of infection as 1-2 years and emphasise the risk of future outbreaks as over 50% of children aged 6-7 years were estimated to be susceptible to CV-A16 and EV-A71. Our study highlights the importance of multivalent vaccines and active surveillance for different serotypes, supports early vaccination prior to 1 year old, and points out the potential utility for vaccinating children older than 5 years old in Vietnam.
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Affiliation(s)
- Yining Chen
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore.
| | - Lam Anh Nguyet
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | | | - Phan Tu Qui
- Hospital for Tropical Diseases, Ho Chi Minh City, Viet Nam
| | | | | | - Nguyen Thi Han Ny
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | - Nguyen To Anh
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | - Le Kim Thanh
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | - Huynh Thi Phuong
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | - Nguyen Ha Thao Vy
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam
| | | | | | | | - Do Chau Viet
- Children's Hospital 2, Ho Chi Minh City, Viet Nam
| | | | - Nguyen Van Vinh Chau
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam; Hospital for Tropical Diseases, Ho Chi Minh City, Viet Nam
| | - H Rogier van Doorn
- Oxford University Clinical Research Unit, Hanoi, Viet Nam; Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Le Van Tan
- Oxford University Clinical Research Unit, Ho Chi Minh City, Viet Nam; Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Hannah Clapham
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
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Root-Bernstein R. T-Cell Receptor Sequences Identify Combined Coxsackievirus- Streptococci Infections as Triggers for Autoimmune Myocarditis and Coxsackievirus- Clostridia Infections for Type 1 Diabetes. Int J Mol Sci 2024; 25:1797. [PMID: 38339075 PMCID: PMC10855694 DOI: 10.3390/ijms25031797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Recent research suggests that T-cell receptor (TCR) sequences expanded during human immunodeficiency virus and SARS-CoV-2 infections unexpectedly mimic these viruses. The hypothesis tested here is that TCR sequences expanded in patients with type 1 diabetes mellitus (T1DM) and autoimmune myocarditis (AM) mimic the infectious triggers of these diseases. Indeed, TCR sequences mimicking coxsackieviruses, which are implicated as triggers of both diseases, are statistically significantly increased in both T1DM and AM patients. However, TCRs mimicking Clostridia antigens are significantly expanded in T1DM, whereas TCRs mimicking Streptococcal antigens are expanded in AM. Notably, Clostridia antigens mimic T1DM autoantigens, such as insulin and glutamic acid decarboxylase, whereas Streptococcal antigens mimic cardiac autoantigens, such as myosin and laminins. Thus, T1DM may be triggered by combined infections of coxsackieviruses with Clostridia bacteria, while AM may be triggered by coxsackieviruses with Streptococci. These TCR results are consistent with both epidemiological and clinical data and recent experimental studies of cross-reactivities of coxsackievirus, Clostridial, and Streptococcal antibodies with T1DM and AM antigens. These data provide the basis for developing novel animal models of AM and T1DM and may provide a generalizable method for revealing the etiologies of other autoimmune diseases. Theories to explain these results are explored.
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Chatterjee S, Kordbacheh R, Sin J. Extracellular Vesicles: A Novel Mode of Viral Propagation Exploited by Enveloped and Non-Enveloped Viruses. Microorganisms 2024; 12:274. [PMID: 38399678 PMCID: PMC10892846 DOI: 10.3390/microorganisms12020274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Extracellular vesicles (EVs) are small membrane-enclosed structures that have gained much attention from researchers across varying scientific fields in the past few decades. Cells secrete diverse types of EVs into the extracellular milieu which include exosomes, microvesicles, and apoptotic bodies. These EVs play a crucial role in facilitating intracellular communication via the transport of proteins, lipids, DNA, rRNA, and miRNAs. It is well known that a number of viruses hijack several cellular pathways involved in EV biogenesis to aid in their replication, assembly, and egress. On the other hand, EVs can also trigger host antiviral immune responses by carrying immunomodulatory molecules and viral antigens on their surface. Owing to this intricate relationship between EVs and viruses, intriguing studies have identified various EV-mediated viral infections and interrogated how EVs can alter overall viral spread and longevity. This review provides a comprehensive overview on the EV-virus relationship, and details various modes of EV-mediated viral spread in the context of clinically relevant enveloped and non-enveloped viruses.
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Affiliation(s)
| | | | - Jon Sin
- Department of Biological Sciences, University of Alabama, 1325 Hackberry Lane, Tuscaloosa, AL 35401, USA; (S.C.); (R.K.)
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12
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Chen S, Chen Y, Ji W, Wang F, Zhang X, Jin Y, Liu Y. Emerging concerns of atypical hand foot and mouth disease caused by recombinant Coxsackievirus A6 variants in Henan, China. J Med Virol 2023; 95:e29316. [PMID: 38103032 DOI: 10.1002/jmv.29316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/15/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
An increasing number of studies have reported that atypical hand, foot, and mouth disease (HFMD) is becoming a new concern for children's health. At present, there is no official definition for atypical HFMD, but some studies have defined that it occurs at anatomic sites not listed in the definition of HFMD issued by the World Health Organization. Several pathogens have been reported to cause atypical HFMD, such as Coxsackievirus (CV)A6. As one of the most prevalent enteroviruses in the world, CVA6 seems to affect a wider range of children and causes more severe and prolonged illness than other enteroviruses. The early lesions of atypical HFMD are very similar to the clinical presentations of other diseases, such as eczema, which poses a challenge for clinicians aiming to identify and diagnose HFMD in a timely manner. Here, we report on six atypical HFMD patients caused by recombinant CVA6 variants, and the atypical manifestations include eczema coxsackium, large herpes, rice-like red papules and herpes, purpuric rash, and onychomadesis, as well as and large red herpes on scalp, perianal, testicles, shoulders and neck, and other atypical eruption sites, hoping to draw the attention of other pediatricians. This study will provide scientific guidance for timely diagnosis of HFMD to prevent serious complications.
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Affiliation(s)
- Shouhang Chen
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yu Chen
- Department of Epidemiology, Zhengzhou University, Zhengzhou, China
| | - Wangquan Ji
- Department of Epidemiology, Zhengzhou University, Zhengzhou, China
| | - Fang Wang
- Department of Infectious Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xiaolong Zhang
- NHC Key Laboratory of Birth Defects Prevention, Henan Key Laboratory of Population Defects Prevention, Zhengzhou, China
| | - Yuefei Jin
- Department of Epidemiology, Zhengzhou University, Zhengzhou, China
| | - Yufeng Liu
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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13
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Wongsa A, Priengprom T, Saelee J, Phawong C, Tassaneetrithep B. Development of a high-throughput flow cytometric neutralization assay to screen for human enterovirus A71 (EVA71) neutralizing antibodies. J Virol Methods 2023; 322:114828. [PMID: 37778536 DOI: 10.1016/j.jviromet.2023.114828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/03/2023]
Abstract
The conventional method for screening neutralizing antibodies to human enterovirus A71 (EVA71) (microneutralization assay) is time consuming and requires an expert to perform manual evaluation. An automated neutralization assay could shorten the testing time, improve reproducibility, and provide automatic analysis. This study aimed to develop a high-throughput flow cytometric neutralization assay to screen for EVA71 neutralizing antibodies, and to develop quality control materials to ensure accurate testing. The results of this study demonstrate the high potential viability of the proposed flow cytometric method. Compared to the standard method, the flow cytometric method was shown to require a smaller sample volume, provide a much faster turnaround time, provide a rapid result for interpreting the neutralizing antibody level, and allow for possible quantification of results. The observed drawbacks of the proposed method include higher cost per test, longer hands-on time, and lower sensitivity in low titer conditions, which could lead to false negative results. The developed quality control materials were demonstrated to be effective and storable for 1 month. These results pave the way for the optimization and implementation of an automated neutralization assay to screen for neutralizing antibodies not only against EVA71, but also against other viruses in the enterovirus genus.
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Affiliation(s)
- Artit Wongsa
- Center of Research Excellence in Immunoregulation, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Thongkoon Priengprom
- Center of Research Excellence in Immunoregulation, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jantip Saelee
- Center of Research Excellence in Immunoregulation, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chintana Phawong
- Department of Medical Technology, Faculty of Medicine, Western University, Pathum Thani, Thailand
| | - Boonrat Tassaneetrithep
- Center of Research Excellence in Immunoregulation, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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14
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Tan YW, Teo FMS, Ler SG, Alli-Shaik A, Nyo M, Chong CY, Tan NWH, Wang RYL, Gunaratne J, Chu JJH. Potential relevance of salivary legumain for the clinical diagnostic of hand, foot, and mouth disease. J Med Virol 2023; 95:e29243. [PMID: 38009231 DOI: 10.1002/jmv.29243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/28/2023]
Abstract
The fight against hand, foot, and mouth disease (HFMD) remains an arduous challenge without existing point-of-care (POC) diagnostic platforms for accurate diagnosis and prompt case quarantine. Hence, the purpose of this salivary biomarker discovery study is to set the fundamentals for the realization of POC diagnostics for HFMD. Whole salivary proteome profiling was performed on the saliva obtained from children with HFMD and healthy children, using a reductive dimethylation chemical labeling method coupled with high-resolution mass spectrometry-based quantitative proteomics technology. We identified 19 upregulated (fold change = 1.5-5.8) and 51 downregulated proteins (fold change = 0.1-0.6) in the saliva samples of HFMD patients in comparison to that of healthy volunteers. Four upregulated protein candidates were selected for dot blot-based validation assay, based on novelty as biomarkers and exclusions in oral diseases and cancers. Salivary legumain was validated in the Singapore (n = 43 healthy, 28 HFMD cases) and Taiwan (n = 60 healthy, 47 HFMD cases) cohorts with an area under the receiver operating characteristic curve of 0.7583 and 0.8028, respectively. This study demonstrates the feasibility of a broad-spectrum HFMD POC diagnostic test based on legumain, a virus-specific host systemic signature, in saliva.
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Affiliation(s)
- Yong Wah Tan
- Collaborative and Translation Unit for Hand, Foot and Mouth Disease (HFMD), Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Fiona Mei Shan Teo
- Collaborative and Translation Unit for Hand, Foot and Mouth Disease (HFMD), Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Siok Ghee Ler
- Translational Biomedical Proteomics, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Asfa Alli-Shaik
- Translational Biomedical Proteomics, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Min Nyo
- Infectious Disease Translational Research Programme, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chia Yin Chong
- Infectious Disease Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore
- Duke-NUS Medical School, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Natalie Woon Hui Tan
- Infectious Disease Service, Department of Paediatrics, KK Women's and Children's Hospital, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore
- Duke-NUS Medical School, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Robert Y L Wang
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan
- Kidney Research Center and Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial and Children's Hospital, Linkou, Taiwan
| | - Jayantha Gunaratne
- Translational Biomedical Proteomics, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Justin Jang Hann Chu
- Collaborative and Translation Unit for Hand, Foot and Mouth Disease (HFMD), Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Infectious Disease Translational Research Programme, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Wang Y, Ji W, Li D, Sun T, Zhu P, Li J, Zhang L, Zhang Y, Yang H, Chen S, Jin Y, Duan G. Active inoculation with an inactivated Coxsackievirus A2 vaccine induces neutralizing antibodies and protects mice against lethal infection. Vaccine 2023; 41:6470-6482. [PMID: 37718187 DOI: 10.1016/j.vaccine.2023.08.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 09/19/2023]
Abstract
Coxsackievirus A2 (CVA2) is one of the causative agents of hand-foot-and-mouth disease (HFMD), which poses a great challenge for global public health. However, presently, there are no available commercial vaccines or antivirals to prevent CVA2 infection. Here, we present an inactivated Vero cell-based whole CVA2 vaccine candidate and evaluate its safety and efficacy in this study. Neonatal BALB/c mice were vaccinated at 5 and 7 days old, respectively, and then challenged with either homologous or heterologous strain of CVA2 at a lethal dose at 10 days old. The inactivated whole CVA2 vaccine candidate showed a high protective efficacy. Additionally, our inactivated vaccine stimulated the production of CVA2-specific IgG1 and IgG2a antibodies in vivo and high titers of neutralization antibodies (NtAbs) in the serum of immunized mice. Maternal immunization with the inactivated CVA2 vaccine provided full protection to pups against lethal infection. Compared with mice inoculated with only alum, the viral loads were decreased, and pathological changes were relieved in tissue samples of immunized mice. Moreover, the transcription levels of some genes related to cytokines (IFN-γ and TNF-α, MCP-1, IL-6, CXCL-10 etc.) were significantly reduced. The number of immune cells and levels of cytokines in peripheral blood of mice inoculated with only alum were higher than that of immunized mice. It is noteworthy that this vaccine showed a good cross-immunity efficacy against Enterovirus A71 (EVA71) challenge. In conclusion, our findings suggest that this experimental inactivated CVA2 vaccine is a promising component of polyvalent vaccines related to HFMD in the near future.
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Affiliation(s)
- Yuexia Wang
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China; Department of Infectious Disease Control and Prevention, Jiangshan Center for Disease Control and Prevention, Jiangshan 324100, Zhejiang, China
| | - Wangquan Ji
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Dong Li
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Tiantian Sun
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Peiyu Zhu
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Junwei Li
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Department of Infectious Disease Control and Prevention, Jiangshan Center for Disease Control and Prevention, Jiangshan 324100, Zhejiang, China
| | - Liang Zhang
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Yu Zhang
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Haiyan Yang
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Shuaiyin Chen
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China
| | - Yuefei Jin
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China.
| | - Guangcai Duan
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, Henan, China.
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16
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Zhang M, He D, Liu Y, Gong Y, Dong W, Chen Y, Ma S. Complete genome analysis of echovirus 30 strains isolated from hand-foot-and-mouth disease in Yunnan province, China. Virol J 2023; 20:215. [PMID: 37730633 PMCID: PMC10510139 DOI: 10.1186/s12985-023-02179-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/06/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Echovirus 30 is prone to cause hand-foot-and-mouth disease in infants and children. However, molecular epidemiologic information on the spread of E30 in southwestern China remains limited. In this study, we determined and analyzed the whole genomic sequences of E30 strains isolated from the stools of patients with hand-foot-and-mouth disease in Yunnan Province, China, in 2019. METHODS E30 isolates were obtained from fecal samples of HFMD patients. The whole genomes were sequenced by segmented PCR and analyzed for phylogeny, mutation and recombination. MEGA and DNAStar were used to align the present isolates with the reference strains. The VP1 sequence of the isolates were analyzed for selection pressure using datamonkey server. RESULTS The complete genome sequences of four E30 were obtained from this virus isolation. Significant homologous recombination signals in the P2-3'UTR region were found in all four isolates with other serotypes. Phylogenetic analysis showed that the four E30 isolates belonged to lineage H. Comparison of the VP1 sequences of these four isolates with other E30 reference strains using three selection pressure analysis models FUBAR, FEL, and MEME, revealed a positive selection site at 133rd position. CONCLUSIONS This study extends the whole genome sequence of E30 in GenBank, in which mutations and recombinations have driven the evolution of E30 and further improved and enriched the genetic characteristics of E30, providing fundamental data for the prevention and control of diseases caused by E30. Furthermore, we demonstrated the value of continuous and extensive surveillance of enterovirus serotypes other than the major HFMD-causing viruses.
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Affiliation(s)
- Ming Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, 650118, PR China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, PR China
| | - Daqian He
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University Yunnan Cancer Hospital,Yunnan Cancer Center), Kunming, 650118, China
| | - Yuhan Liu
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, 650118, PR China
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, PR China
| | - Yue Gong
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University Yunnan Cancer Hospital,Yunnan Cancer Center), Kunming, 650118, China
| | - Wenxun Dong
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University Yunnan Cancer Hospital,Yunnan Cancer Center), Kunming, 650118, China
| | - Ying Chen
- Department of Thoracic Surgery I, The Third Affiliated Hospital of Kunming Medical University Yunnan Cancer Hospital,Yunnan Cancer Center), Kunming, 650118, China.
| | - Shaohui Ma
- Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming, 650118, PR China.
- Yunnan Key Laboratory of Vaccine Research Development on Severe Infectious Disease, Kunming, 650118, PR China.
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Liu T, Li Y, Wang L, Zhang X, Zhang Y, Gai X, Chen L, Liu L, Yang L, Wang B. Network pharmacology-based exploration identified the antiviral efficacy of Quercetin isolated from mulberry leaves against enterovirus 71 via the NF-κB signaling pathway. Front Pharmacol 2023; 14:1260288. [PMID: 37795035 PMCID: PMC10546324 DOI: 10.3389/fphar.2023.1260288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/06/2023] [Indexed: 10/06/2023] Open
Abstract
Introduction: Mulberry leaf (ML) is known for its antibacterial and anti-inflammatory properties, historically documented in "Shen Nong's Materia Medica". This study aimed to investigate the effects of ML on enterovirus 71 (EV71) using network pharmacology, molecular docking, and in vitro experiments. Methods: We successfully pinpointed shared targets between mulberry leaves (ML) and the EV71 virus by leveraging online databases. Our investigation delved into the interaction among these identified targets, leading to the identification of pivotal components within ML that possess potent anti-EV71 properties. The ability of these components to bind to the targets was verified by molecular docking. Moreover, bioinformatics predictions were used to identify the signaling pathways involved. Finally, the mechanism behind its anti-EV71 action was confirmed through in vitro experiments. Results: Our investigation uncovered 25 active components in ML that targeted 231 specific genes. Of these genes, 29 correlated with the targets of EV71. Quercetin, a major ingredient in ML, was associated with 25 of these genes. According to the molecular docking results, Quercetin has a high binding affinity to the targets of ML and EV71. According to the KEGG pathway analysis, the antiviral effect of Quercetin against EV71 was found to be closely related to the NF-κB signaling pathway. The results of immunofluorescence and Western blotting showed that Quercetin significantly reduced the expression levels of VP1, TNF-α, and IL-1β in EV71-infected human rhabdomyosarcoma cells. The phosphorylation level of NF-κB p65 was reduced, and the activation of NF-κB signaling pathway was suppressed by Quercetin. Furthermore, our results showed that Quercetin downregulated the expression of JNK, ERK, and p38 and their phosphorylation levels due to EV71 infection. Conclusion: With these findings in mind, we can conclude that inhibiting the NF-κB signaling pathway is a critical mechanism through which Quercetin exerts its anti-EV71 effectiveness.
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Affiliation(s)
- Tianrun Liu
- School of Medicine, Jiamusi University, Jiamusi, China
| | - Yingyu Li
- School of Medicine, Jiamusi University, Jiamusi, China
| | - Lumeng Wang
- School of Medicine, Jiamusi University, Jiamusi, China
| | | | - Yuxuan Zhang
- School of Medicine, Jiamusi University, Jiamusi, China
| | - Xuejie Gai
- The Affiliated First Hospital, Jiamusi University, Jiamusi, China
| | - Li Chen
- School of Medicine, Jiamusi University, Jiamusi, China
| | - Lei Liu
- School of Medicine, Jiamusi University, Jiamusi, China
| | - Limin Yang
- School of Medicine, Dalian University, Dalian, China
| | - Baixin Wang
- School of Medicine, Jiamusi University, Jiamusi, China
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Yang Q, Liu F, Chang L, Lai S, Teng J, Duan J, Jian H, Liu T, Che G. Molecular epidemiology and clinical characteristics of enteroviruses associated HFMD in Chengdu, China, 2013-2022. Virol J 2023; 20:202. [PMID: 37661256 PMCID: PMC10476316 DOI: 10.1186/s12985-023-02169-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/26/2023] [Indexed: 09/05/2023] Open
Abstract
OBJECTIVES This study aims to investigate molecular epidemiology and clinical characteristics of enterovirus associated hand-foot-mouth disease (HFMD) in Chengdu, China, 2013-2022. Monitoring the molecular epidemiology and clinical features of HFMD for up to 10 years may provide some ideas for future protection and control measures. METHODS We conducted a retrospective analysis of the medical records of all patients with laboratory-confirmed HFMD-related enterovirus infection at the West China Second University Hospital from January 2013 to December 2022. We described the characteristics in serotype, age, sex distribution and hospitalization of enterovirus infection cases using data analysis and graphic description. RESULTS A total of 29,861 laboratory-confirmed cases of HFMD-related enterovirus infection were reported from 2013 to 2022. There was a significant reduction in the number and proportion of EV-A71 cases after 2016, from 1713 cases (13.60%) in 2013-2015 to 150 cases (1.83%) in 2017-2019. During the COVID-19 pandemic, EV-A71 cases even disappeared. The proportion of CV-A16 cases decreased from 13.96% in 2013-2015 to 10.84% in 2017-2019 and then to 4.54% in 2020-2022. Other (non-EV-A71 and non-CV-A16) serotypes accounted for 95.45% during 2020-2022, with CV-A6 accounting for 50.39% and CV-A10 accounting for 10.81%. Thus, CV-A6 and CV-A10 became the main prevalent serotypes. Furthermore, There was no significant difference in the enterovirus prevalence rate between males and females. The hospitalization rate of EV-A71 patients was higher that of other serotypes. In general, the proportion of HFMD hospitalizations caused by other pathogens except for EV-A71, CV-A16, CV-A10 and CV-A16 was second only to that caused by EV-A71. The proportion of children over 4 years old infected with enterovirus increased. CONCLUSION The incidence of HFMD associated with enterovirus infection has decreased significantly and CV-A6 has been the main pathogen of HFMD in Chengdu area in recent years. The potential for additional hospitalizations for other untested enterovirus serotypes suggested that attention should also be paid to the harms of infections with unknown enterovirus serotypes. Children with HFMD were older. The development of new diagnostic reagents and vaccines may play an important role in the prevention and control of enterovirus infection.
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Affiliation(s)
- Qiuxia Yang
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Fang Liu
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Li Chang
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Shuyu Lai
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Jie Teng
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Jiaxin Duan
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Hui Jian
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Ting Liu
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Guanglu Che
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, No. 20, Section 3, Renmin South Road, Chengdu, 610041, Sichuan, People's Republic of China.
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19
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Wang YY, Li Q, Han XW, Wan XH, Zhang L, Niu FJ, Xin YZ, Zhou CZ. Bryum billardieri Schwaegr. against EV71 infection: in vitro and in vivo antiviral effects, identification of molecular mechanisms and active monomers. Front Pharmacol 2023; 14:1164784. [PMID: 37649892 PMCID: PMC10463183 DOI: 10.3389/fphar.2023.1164784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/31/2023] [Indexed: 09/01/2023] Open
Abstract
Enterovirus 71 (EV71) commonly causes symptoms such as hand, foot, and mouth disease (HFMD) in infants and children and may lead to neurological disease and even death in severe cases. Appropriate vaccines for the prevention of HFMD are available in the clinic; however, they present different and serious adverse effects that cannot guarantee compliance and efficacy. The purpose of this study was to analyze the potential mechanism of Bryum billardieri Schwaegr. (BBS) against EV71 and analyze its potential active components. A previous in vitro antiviral assay was used to determine the best extraction method for the active site of BBS against EV71, and the results showed that the antiviral activity of BBS was more pronounced in the fraction that was extracted by aqueous extraction and alcoholic precipitation and then obtained by purification on a silica gel column (dichloromethane:methanol = 0:100). In addition, the therapeutic effects of BBS on EV71-infected mice were further investigated by in vivo pharmacological experiments. BBS reduced the lung index, viral titer, and degree of EV71-induced lung, brain, and skeletal muscle damage. The mechanism of anti-EV71 activity of BBS was also investigated by using ELISA and qRT-PCR, and it was found that BBS exerted its action mainly by regulating the expression of TLR3, TLR4, TNF-α, IL-2, and IFN-γ by modulating the activation of NF-κB and JAK2/STAT1 signaling pathways. Finally, the chemical structures of the active monomers in BBS were determined by using UPLC-MS and NMR techniques. The study revealed that one of the monomers on which BBS exerts its antiviral activity is saponarin. In conclusion, the results of this study suggest that BBS is considered a natural anti-EV71 product with enormous potential, and saponarin would be its non-negligible active monomer.
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Affiliation(s)
- Yun-Yu Wang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Qian Li
- Shandong Qidu Pharmaceutical Co., Ji’nan, China
| | - Xiu-Wei Han
- Zhaoyuan Inspection and Testing Center, Yantai, China
| | - Xin-Huan Wan
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Li Zhang
- The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Feng-Jv Niu
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Yi-Zhou Xin
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji’nan, China
| | - Chang-Zheng Zhou
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji’nan, China
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20
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Fu L, Zhang XY, Jin WP, Wang C, Qian SS, Wang MJ, Wang WH, Meng SL, Guo J, Wang ZJ, Chen XQ, Shen S. Identification of a Conserved, Linear Epitope on VP3 of Enterovirus A Species Recognized by a Broad-Spectrum Monoclonal Antibody. Viruses 2023; 15:v15041028. [PMID: 37113008 PMCID: PMC10145497 DOI: 10.3390/v15041028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023] Open
Abstract
Outbreaks of hand, foot and mouth disease (HFMD) have occurred frequently in the Asian-Pacific region over the last two decades, caused mainly by the serotypes in Enterovirus A species. High-quality monoclonal antibodies (mAbs) are needed to improve the accuracy and efficiency of the diagnosis of enteroviruses associated HFMD. In this study, a mAb 1A11 was generated using full particles of CV-A5 as an immunogen. In indirect immunofluorescence and Western blotting assays, 1A11 bound to the viral proteins of CV-A2, CV-A4, CV-A5, CV-A6, CV-A10, CV-A16, and EV-A71 of the Enterovirus A and targeted VP3. It has no cross-reactivity to strains of Enterovirus B and C. By mapping with over-lapped and truncated peptides, a minimal and linear epitope 23PILPGF28 was identified, located at the N-terminus of the VP3. A BLAST sequence search of the epitope in the NCBI genus Enterovirus (taxid: 12059) protein database indicates that the epitope sequence is highly conserved among the Enterovirus A species, but not among the other enterovirus species, first reported by us. By mutagenesis analysis, critical residues for 1A11 binding were identified for most serotypes of Enterovirus A. It may be useful for the development of a cost-effective and pan-Enterovirus A antigen detection for surveillance, early diagnosis and differentiation of infections caused by the Enterovirus A species.
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Affiliation(s)
- Lie Fu
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Xiao-Yu Zhang
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Wei-Ping Jin
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Chen Wang
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Sha-Sha Qian
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Meng-Jun Wang
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Wen-Hui Wang
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Sheng-Li Meng
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Jing Guo
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Ze-Jun Wang
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Xiao-Qi Chen
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
| | - Shuo Shen
- Wuhan Institute of Biological Products Co., Ltd., Wuhan 430207, China
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21
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Zhu P, Ji W, Li D, Li Z, Chen Y, Dai B, Han S, Chen S, Jin Y, Duan G. Current status of hand-foot-and-mouth disease. J Biomed Sci 2023; 30:15. [PMID: 36829162 PMCID: PMC9951172 DOI: 10.1186/s12929-023-00908-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/16/2023] [Indexed: 02/26/2023] Open
Abstract
Hand-foot-and-mouth disease (HFMD) is a viral illness commonly seen in young children under 5 years of age, characterized by typical manifestations such as oral herpes and rashes on the hands and feet. These symptoms typically resolve spontaneously within a few days without complications. Over the past two decades, our understanding of HFMD has greatly improved and it has received significant attention. A variety of research studies, including epidemiological, animal, and in vitro studies, suggest that the disease may be associated with potentially fatal neurological complications. These findings reveal clinical, epidemiological, pathological, and etiological characteristics that are quite different from initial understandings of the illness. It is important to note that HFMD has been linked to severe cardiopulmonary complications, as well as severe neurological sequelae that can be observed during follow-up. At present, there is no specific pharmaceutical intervention for HFMD. An inactivated Enterovirus A71 (EV-A71) vaccine that has been approved by the China Food and Drug Administration (CFDA) has been shown to provide a high level of protection against EV-A71-related HFMD. However, the simultaneous circulation of multiple pathogens and the evolution of the molecular epidemiology of infectious agents make interventions based solely on a single agent comparatively inadequate. Enteroviruses are highly contagious and have a predilection for the nervous system, particularly in child populations, which contributes to the ongoing outbreak. Given the substantial impact of HFMD around the world, this Review synthesizes the current knowledge of the virology, epidemiology, pathogenesis, therapy, sequelae, and vaccine development of HFMD to improve clinical practices and public health efforts.
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Affiliation(s)
- Peiyu Zhu
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Wangquan Ji
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Dong Li
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Zijie Li
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Yu Chen
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Bowen Dai
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Shujie Han
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Shuaiyin Chen
- grid.207374.50000 0001 2189 3846Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001 China
| | - Yuefei Jin
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China.
| | - Guangcai Duan
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, 450001, China. .,Academy of Medical Science, Zhengzhou University, Zhengzhou, 450001, Henan, China.
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