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Duan Y, Zhu Y, Zhang L, Wang W, Zhang M, Tian J, Li Q, Ai J, Wang R, Xie Z. Activation of the NLRP3 inflammasome by human adenovirus type 7 L4 100-kilodalton protein. Front Immunol 2024; 15:1294898. [PMID: 38660301 PMCID: PMC11041921 DOI: 10.3389/fimmu.2024.1294898] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 04/03/2024] [Indexed: 04/26/2024] Open
Abstract
Human adenovirus type 7 (HAdV-7) is a significant viral pathogen that causes respiratory infections in children. Currently, there are no specific antiviral drugs or vaccines for children targeting HAdV-7, and the mechanisms of its pathogenesis remain unclear. The NLRP3 inflammasome-driven inflammatory cascade plays a crucial role in the host's antiviral immunity. Our previous study demonstrated that HAdV-7 infection activates the NLRP3 inflammasome. Building upon this finding, our current study has identified the L4 100 kDa protein encoded by HAdV-7 as the primary viral component responsible for NLRP3 inflammasome activation. By utilizing techniques such as co-immunoprecipitation, we have confirmed that the 100 kDa protein interacts with the NLRP3 protein and facilitates the assembly of the NLRP3 inflammasome by binding specifically to the NACHT and LRR domains of NLRP3. These insights offer a deeper understanding of HAdV-7 pathogenesis and contribute to the development of novel antiviral therapies.
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Affiliation(s)
- Yali Duan
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
- Department of Infectious Diseases, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Yun Zhu
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
| | - Linlin Zhang
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Wang
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
- Department of Pediatrics, Beijing Jingmei Group General Hospital, Beijing, China
| | - Meng Zhang
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
- Department of Pediatric Rehabilitation, Beijing Boai Hospital, School of Rehabilitation Medicine, Capital Medical University, China Rehabilitation Research Center, Beijing, China
| | - Jiao Tian
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
| | - Qi Li
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
| | - Junhong Ai
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
| | - Ran Wang
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhengde Xie
- Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children’s Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Research Unit of Critical Infection in Children, 2019RU016, Chinese Academy of Medical Sciences, Beijing, China
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Nguyen DD, Phung LT, Thanh Tran HT, Ly HTT, Vo AHM, Dinh NP, Doan PM, Nguyen AT, Dang LD, Doan TT, Pham KT, Pham HL, Hoang DX, Pham TN, Tran BT, Tran TTT, Le HTM, Pham AN, Antoniou A, Ho NT. Molecular subtypes of Adenovirus-associated acute respiratory infection outbreak in children in Northern Vietnam and risk factors of more severe cases. PLoS Negl Trop Dis 2023; 17:e0011311. [PMID: 37934746 PMCID: PMC10655982 DOI: 10.1371/journal.pntd.0011311] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/17/2023] [Accepted: 10/19/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Under the pressure of Human Adenovirus (HAdV)-associated acute respiratory infection (ARI) outbreak in children in Northern Vietnam in the end of 2022, this study was initiated to identify the HAdV subtype(s) and examine the associated clinical features and risk factors of more severe cases. METHODS This study evaluated pediatric patients with ARI which had tested positive for HAdV between October and November 2022 using a multiplex real-time PCR panel. Nasopharyngeal aspirates or nasal swab samples were used for sequencing to identify HAdV subtypes. Clinical data were collected retrospectively. RESULTS Among 97 successfully sequenced samples, the predominant subtypes were HAdV-B3 (83%), HAdV-B7 (16%) and HAdV-C2 (1%). Lower respiratory manifestations were found in 25% of the patients of which 5% were diagnosed with severe pneumonia. There was no significant association between HAdV subtype and clinical features except higher white blood cell and neutrophil counts in those detected with HAdV-B3 (p<0.001). Co-detection of HAdV with ≥1 other respiratory viruses was found in 13/24(54%) of those with lower respiratory manifestations and 4/5(80%) of those with severe pneumonia (odds ratio (95% confidence interval) vs. those without = 10.74 (2.83, 48.17) and 19.44 (2.12, 492.73) respectively after adjusting for age, sex, birth delivery method, day of disease). CONCLUSION HAdV-B3 and HAdV-B7 were predominant in the outbreak. Co-detection of HAdV together with other respiratory viruses was a strong risk factor for lower respiratory tract illnesses and severe pneumonia. The findings advocate the advantages of multi-factor microbial panels for the diagnosis and prognosis of ARI in children.
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Affiliation(s)
- Dinh-Dung Nguyen
- Medical Genetics Department, Vinmec High Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Lan Tuyet Phung
- Pediatric Center, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
- VinUniversity, Hanoi, Vietnam
| | - Huyen Thi Thanh Tran
- Medical Genetics Department, Vinmec High Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Ha Thi Thanh Ly
- Medical Genetics Department, Vinmec High Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Anh Hang Mai Vo
- Medical Genetics Department, Vinmec High Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Nhung Phuong Dinh
- Medical Genetics Department, Vinmec High Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Phuong Mai Doan
- Microbiology Lab, Laboratory Department, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Anh Thi Nguyen
- Microbiology Lab, Laboratory Department, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Luc Danh Dang
- Microbiology Lab, Laboratory Department, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Thia Thi Doan
- Microbiology Lab, Laboratory Department, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Khuong Thi Pham
- Pediatric Center, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Huong Lan Pham
- Pediatric Center, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Dai Xuan Hoang
- Pediatric Center, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | | | | | | | - Huong Thi Minh Le
- Pediatric Center, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - An Nhat Pham
- Pediatric Center, Vinmec Times City International General Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Antony Antoniou
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Nhan Thi Ho
- Research & Development Department, Vinmec High Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
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Qin J, Yan T, Yin L, Yang C, Wang L, Qiu H, Hu Y, Xu B. Detection of human adenoviruses in influenza-negative patients with respiratory tract infections in Nanning, China. Virol J 2023; 20:171. [PMID: 37533080 PMCID: PMC10398977 DOI: 10.1186/s12985-023-02093-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/06/2023] [Indexed: 08/04/2023] Open
Abstract
BACKGROUND Human adenoviruses (HAdV) have been known to cause a range of diseases, including respiratory tract infections (RTIs). However, there is limited information available regarding the genotype diversity and epidemiology of HAdV associated with RTIs in Nanning. METHODS Between June 2019 and December 2021, throat swab, nasal swab, or nasopharyngeal swab samples were obtained from individuals hospitalized with respiratory tract infections (RTIs). Statistical software was used to analyze the epidemiological data. The highly conserved 132-bp gene region of the HAdV hexon was targeted for the detection of HAdV using a qPCR assay. An 875-bp hexon gene fragment was subjected to phylogenetic analysis. RESULTS Significant variations were observed in the age and gender distribution of HAdV-positive patients (P = 0.004 and P = 0.025, respectively). The age distribution of HAdV-positive patients showed that 67.89% of those who tested positive were the age group of 0-6 years. Furthermore, the prevalence of HAdV detection was highest during spring and autumn, with a peak in February. Additionally, genotyping of the 36 HAdV-positive samples with 875-bp fragments identified the presence of circulating HAdV species B, C, and E in Nanning between 2019 and 2021. CONCLUSIONS This study identified an association between HAdV prevalence and age as well as season. Among hospitalized patients with RTIs in Nanning, HAdV-B, HAdV-C, and HAdV-E were found to be co-circulating. The most commonly detected genotypes were HAdV-C1, HAdV-C6, and HAdV-E4.
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Affiliation(s)
- Jianqiu Qin
- Nanning Center for Disease Control and Prevention, Nanning, Guangxi, 530023, China
| | - Tengyue Yan
- Collaborative Innovation Centre of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning, China
| | - Liujiang Yin
- Nanning Center for Disease Control and Prevention, Nanning, Guangxi, 530023, China
| | - Cheng Yang
- Nanning Center for Disease Control and Prevention, Nanning, Guangxi, 530023, China
| | - Liang Wang
- Nanning Center for Disease Control and Prevention, Nanning, Guangxi, 530023, China
| | - Hong Qiu
- Institute of Life Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Yanling Hu
- Collaborative Innovation Centre of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning, China.
- Institute of Life Sciences, Guangxi Medical University, Nanning, Guangxi, 530021, China.
| | - Bin Xu
- Nanning Center for Disease Control and Prevention, Nanning, Guangxi, 530023, China.
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Kuang L, Wang C, Chen H, Li Y, Liang Z, Xu T, Guo M, Zhu B. Seroprevalence of neutralizing antibodies to human mastadenovirus serotypes 3 and 7 in healthy children from guangdong province. Heliyon 2023; 9:e16986. [PMID: 37346335 PMCID: PMC10279900 DOI: 10.1016/j.heliyon.2023.e16986] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/15/2022] [Revised: 04/28/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023] Open
Abstract
Severe adenovirus pneumonia is becoming more common in children infected with human mastadenovirus (HAdV)-3 and HAdV-7 than in those infected with other types of adenoviruses. Recently, there has been a trend toward an increasing prevalence of pneumonia caused by HAdV-7, an important viral pathogen in Pediatric Intensive Care Unit infections. Children infected with HAdV-7 have more serious symptoms of acute respiratory infections and other complications than those infected with HAdV-3. No specific anti-adenovirus drugs or vaccines are available for treatment or prevention. Therefore, we investigated the seroprevalence and titer levels of neutralizing antibodies (NAbs) against HAdV-3 and HAdV-7 in healthy children in Guangdong Province. We found that the seropositivity rates and antibody titers for HAdV-3 NAb were higher than those for HAdV-7 NAb. In children between 6 and 12 months of age, the seropositivity rates and titers were significantly low against HAdV-3 and HAdV-7. The HAdV-7-positive rate was significantly higher in the HAdV-3-positive samples than in the HAdV-3-negative samples. The HAdV-7 NAbs carried by the 0-6-month age group were dominated by low titers. These results reveal a low level of herd immunity against HAdV-3 and HAdV-7 in children, clarifying the importance of monitoring these two highly virulent adenoviruses, developing prophylactic vaccines, and predicting potential outbreaks.
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Affiliation(s)
- Lu Kuang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Changbing Wang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Haiyang Chen
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Yinghua Li
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Zhuofu Liang
- Clinical Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Tiantian Xu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Min Guo
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Bing Zhu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
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Xu D, Chen L, Wu X, Ji L. Molecular typing and epidemiology profiles of human adenovirus infection among hospitalized patients with severe acute respiratory infection in Huzhou, China. PLoS One 2022; 17:e0265987. [PMID: 35446868 PMCID: PMC9022850 DOI: 10.1371/journal.pone.0265987] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 03/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background Severe acute respiratory infections (SARI) threaten human health and cause a large number of hospitalizations every year. However, as one of the most common pathogen that cause acute respiratory tract infection, the molecular epidemiological information relating to human adenoviruses (HAdVs) among patients with SARI is limited. Here, we evaluate the epidemiological and molecular characteristics of HAdV infections among hospitalized patients with SARI from January 2017 to December 2019 in Huzhou, China. Methods From January 2017 to December 2019, a total of 657 nasopharyngeal swabs collected from inpatients with SARI were screened for HAdV and other common respiratory viruses by multiplex real-time PCR. All samples that tested positive for HAdV were further typed by sequencing partial sequences of hexon gene. Genotypes of HAdV were confirmed by phylogenetic analysis. Epidemiological data were analyzed using Microsoft Excel 2010 and service solutions (SPSS) 21.0 software. Results 251 (38.20%) samples were positive for at least one respiratory virus. HAdV was the second common viral pathogen detected, with a detection rate of 7.08%. Infection with HAdV was found in all age groups tested (0<2, 2<5, 5<15, 15<50, 50<65, ≥65). Children under 15 years old accounted for 84.62% (44/52) of the infections. Higher activity of HAdV infection could be seen in spring-early autumn season. Seven different types of HAdV belonging to 4 species (HAdV-A, B, C, E) were identified in hospitalized SARI cases, with HAdV-B3 as the most prevalent HAdV types, followed by HAdV-B7 and HAdV-E4. HAdV-B3 was the most frequently detected genotype in 2017 and 2019, accounting for 75.00% (9/12) and 63.64% (7/11) of typed HAdV infections in 2017 and 2019, respectively. No predominant strain was responsible for HAdV infections in 2018, although HAdV-B7 (28.57%, 2/7) and HAdV-C1 (28.57%, 2/7) were the major causative genotypes. Conclusions This study revealed the prevalence and the molecular epidemiological characteristics of HAdV infections among hospitalized patients with SARI in Huzhou from January 2017 to December 2019. The HAdV prevalence is related to age and season. As the most prevalent HAdV types, HAdV-B3 was co-circulating with other types and presented an alternate prevalence pattern.
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Affiliation(s)
- Deshun Xu
- Huzhou Center for Disease Control and Prevention, Huzhou, China
| | - Liping Chen
- Huzhou Center for Disease Control and Prevention, Huzhou, China
| | - Xiaofang Wu
- Huzhou Center for Disease Control and Prevention, Huzhou, China
| | - Lei Ji
- Huzhou Center for Disease Control and Prevention, Huzhou, China
- * E-mail:
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Peng H, Chen F, Zuo Y, Huang B, Yang Y, Dang R. Mortality reduction in pediatric patients with severe fatal human adenoviral pneumonia treated with high titer neutralizing antibodies (NAbs) plasma: a retrospective cohort study. BMC Pediatr 2022; 22:151. [PMID: 35317780 PMCID: PMC8938635 DOI: 10.1186/s12887-022-03225-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 03/14/2022] [Indexed: 11/14/2022] Open
Abstract
Background Severe fatal human adenoviral (HAdV) pneumonia is associated with significant mortality and no effective drug is available for clinical therapy. We evaluated the association and safety of high titer neutralizing antibodies (NAbs) plasma in pediatric patients with severe fatal HAdV pneumonia. Methods A retrospective cohort study was performed between January 2016 to June 2021 in pediatric intensive care unit. Pediatric patients with severe fatal HAdV pneumonia were included and divided into plasma group (conventional treatment plus high titer NAbs plasma treatment) and control group (conventional treatment alone). The primary outcome was mortality in hospital. Secondary outcomes were the duration of fever after adenovirus genotype determined, duration of invasive mechanical ventilation, length of hospital stay. T-test, Mann-Whitney U-test, chi-square test, univariable and multivariable logistic regression analysis, Kaplan-Meier method and log-rank test were adopted to compare differences between two groups. Results A total of 59 pediatric patients with severe fatal HAdV pneumonia were enrolled. They were divided into plasma group (n = 33) and control group (n = 26). The mortality in hospital was 28.8% (17/ 59). Significantly fewer patients progressed to death in plasma group than control group (18.2% vs 42.3%, p = 0.042). Sequential organ failure assessment (SOFA) score, oxygen index (OI) and high titer NAbs plasma treatment were included in multivariable logistic regression analysis for mortality risk factors. Consequentially, SOFA score (Hazard Ratio [HR] 7.686, 95% Confidence Interval [CI] 1.735–34.054, p = 0.007) and without high titer NAbs plasma treatment (HR 4.298, 95%CI 1.030–17.934, p = 0.045) were significantly associated with mortality. In addition, high titer NAbs plasma treatment were associated with faster temperature recovering in survivors (p = 0.031). No serious adverse effects occurred. Conclusions Administration of high titer NAbs plasma were associated with a lower hazard for mortality in pediatric patients with severe fatal HAdV pneumonia. For survivors, high titer NAbs plasma treatment shorten the duration of fever.
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Affiliation(s)
- Hongyan Peng
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, No.318 Renmin Middle Road, Yuexiu District, Guangzhou, 510120, China
| | - Feiyan Chen
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, No.318 Renmin Middle Road, Yuexiu District, Guangzhou, 510120, China
| | - Yunlong Zuo
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, No.318 Renmin Middle Road, Yuexiu District, Guangzhou, 510120, China
| | - Bolun Huang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, No.318 Renmin Middle Road, Yuexiu District, Guangzhou, 510120, China
| | - Yiyu Yang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, No.318 Renmin Middle Road, Yuexiu District, Guangzhou, 510120, China.
| | - Run Dang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, No.318 Renmin Middle Road, Yuexiu District, Guangzhou, 510120, China.
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Chen Y, Lin T, Wang CB, Liang WL, Lian GW, Zanin M, Wong SS, Tian XG, Zhong JY, Zhang YY, Xie JH, Zheng LL, Chen FY, Dang R, Zhao MQ, Yang YY, Zhou R, Zhu B. Human adenovirus (HAdV) infection in children with acute respiratory tract infections in Guangzhou, China, 2010-2021: a molecular epidemiology study. World J Pediatr 2022; 18:545-552. [PMID: 35861938 PMCID: PMC9302229 DOI: 10.1007/s12519-022-00590-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/29/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Human adenovirus (HAdV) infection can cause a variety of diseases. It is a major pathogen of pediatric acute respiratory tract infections (ARIs) and can be life-threatening in younger children. We described the epidemiology and subtypes shifting of HAdV among children with ARI in Guangzhou, China. METHODS We conducted a retrospective study of 161,079 children diagnosed with acute respiratory illness at the Guangzhou Women and Children's Medical Center between 2010 and 2021. HAdV specimens were detected by real-time PCR and the hexon gene was used for phylogenetic analysis. RESULTS Before the COVID-19 outbreak in Guangzhou, the annual frequency of adenovirus infection detected during this period ranged from 3.92% to 13.58%, with an epidemic peak every four to five years. HAdV demonstrated a clear seasonal distribution, with the lowest positivity in March and peaking during summer (July or August) every year. A significant increase in HAdV cases was recorded for 2018 and 2019, which coincided with a shift in the dominant HAdV subtype from HAdV-3 to HAdV-7. The latter was associated with a more severe disease compared to HAdV-3. The average mortality proportion for children infected with HAdV from 2016 to 2019 was 0.38% but increased to 20% in severe cases. After COVID-19 emerged, HAdV cases dropped to 2.68%, suggesting that non-pharmaceutical interventions probably reduced the transmission of HAdV in the community. CONCLUSION Our study provides the foundation for the understanding of the epidemiology of HAdV and its associated risks in children in Southern China.
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Affiliation(s)
- Yi Chen
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Tao Lin
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Chang-Bing Wang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Wan-Li Liang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Guang-Wan Lian
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Mark Zanin
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Sook-San Wong
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Xin-Gui Tian
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, China
| | - Jia-Yu Zhong
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Ying-Ying Zhang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Jia-Hui Xie
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Ling-Ling Zheng
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Fei-Yan Chen
- Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Run Dang
- Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Ming-Qi Zhao
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Yi-Yu Yang
- Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Rong Zhou
- Guangzhou Medical University, Guangzhou, 510120, China.
| | - Bing Zhu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China.
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Zhu Q, Chen S, Gu L, Qu J. Comparative analyses of clinical features reveal the severity of human adenovirus type 55 and type 7 in acute respiratory tract infections. J Med Microbiol 2021; 70. [PMID: 34951397 DOI: 10.1099/jmm.0.001445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction. Human adenovirus (HAdV) is an important pathogen in acute respiratory tract infections (ARTIs) and HAdV genotypes are associated with disease severity.Hypothesis. Comparative analyses of clinical features could reveal the severity of different HAdV genotypes in ARTIs.Aim. This study aimed to investigate the molecular epidemiology of HAdV infections and explore the correlations between clinical features and HAdV genotypes.Methodology. A retrospective study was conducted on ARTIs at Beijing Chao-Yang Hospital during the period 2011-2016. A standardized data form was used to record the clinical information. HAdV was detected by FQ-PCR from respiratory specimens, and genotypes were determined by entire hexon gene sequencing.Results. A total of 8044 samples were collected, of which 296 (3.7 %) were HAdV-positive. Patients ≤44 years old were more likely to be positive for HAdV. There were three peak periods of adenoviral infections, with detection rates of 13.03, 9.39 and 10.38 %, respectively. Six HAdV genotypes (HAdV-55, -7, -3, -14, -50, -2) were identified, with HAdV-55 and HAdV-7 being the most prevalent (50.6 and 21.5 %). Compared with HAdV-7 and other types, patients infected with HAdV-55 had a longer duration of fever (P=0.0428). Infections with HAdV-55 and HAdV-7 were more severe compared to those caused by other types, with higher rates of oxygen therapy and mechanical ventilation (P=0.0172 and P=0.0144). All five deaths were caused by HAdV-55.Conclusion. This study describes the epidemiological characteristics of HAdV infections in North China, revealing the higher severity of HAdV-55 and HAdV-7 in ARTIs. Thus, strengthened surveillance of HAdV genotypes is warranted.
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Affiliation(s)
- Qing Zhu
- Department of Clinical Laboratory, Shenzhen Third People's Hospital, Southern University of Science and Technology, National Clinical Research Center for Infectious Diseases, Shenzhen, PR China
| | - Shuyan Chen
- Shenzhen Third People's Hospital, Southern University of Science and Technology, National Clinical Research Center for Infectious Diseases, Shenzhen, PR China
| | - Li Gu
- Department of Infectious Diseases and Clinical Microbiology, Beijing Chao-Yang Hospital, Beijing Institute of Respiratory Medicine, Capital Medical University, Beijing, PR China
| | - Jiuxin Qu
- Department of Clinical Laboratory, Shenzhen Third People's Hospital, Southern University of Science and Technology, National Clinical Research Center for Infectious Diseases, Shenzhen, PR China
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Zhang P, Liu M, Zhang L, Guo X, Lu B, Wang Y, Zhan Q. Clinical and CT findings of adenovirus pneumonia in immunocompetent adults. Clin Respir J 2021; 15:1343-1351. [PMID: 34505348 DOI: 10.1111/crj.13439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/10/2021] [Accepted: 08/10/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Adenovirus pneumonia is not uncommon in children and immunocompromised patients. However, the study of the clinical and computed tomography (CT) characteristics of Adenovirus pneumonia in immunocompetent adults is still limited. OBJECTIVE The objective of this study was to retrospectively observe the clinical and CT characteristics as well as their dynamic change of Adenovirus pneumonia in immunocompetent adults. METHODS Twenty patients (18 males, median age, 36 years old) with Adenovirus pneumonia were retrospectively included from January 2018 to December 2019. Clinical information and chest CT at admission of all patients were reviewed. Twelve patients underwent serial CT scans, and the temporal changes of CT findings were summarized. Pneumonia severity index (PSI) was calculated according to clinical information. RESULTS The median time interval from illness onset to admission was 6 days (interquartile range [IQR], 5-7.5 days). The clinical characteristics included the high fever (39.2 ± 0.8°C) with the normal white blood cell count, the decreased lymphocyte, and elevated C-reactive protein. Ten cases complicated with mycoplasma infection at admission. Thirteen patients were mechanically ventilated, and two patients died during hospitalization. Consolidation was a predominant pattern found during the first 2 weeks and then resolved to minimal consolidation after the fourth week. There was no significant correlation between CT score and PSI score (r = 0.15, p = 0.41). CONCLUSIONS Predominant radiological finding of Adenovirus pneumonia was consolidation. Multilobular involvement, higher CT scores, and pleural effusion were found in more severe patients. The abnormal opacity peaked in 2 weeks of illness onset and gradually resolved after the third week. The temporal changes of radiological score are consistent with clinical findings.
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Affiliation(s)
- Peiyao Zhang
- Department of Radiology, China-Japan Friendship Hospital, Beijing, China
| | - Min Liu
- Department of Radiology, China-Japan Friendship Hospital, Beijing, China
| | - Ling Zhang
- Department of Radiology, China-Japan Friendship Hospital, Beijing, China
| | - Xiaojuan Guo
- Department of Radiology, Beijing Chaoyang Hospital of Capital Medical University, Beijing, China
| | - Binghuai Lu
- Laboratory of Clinical Microbiology and Infectious Diseases, Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Yimin Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Qingyuan Zhan
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
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10
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Wang X, Wang D, Umar S, Qin S, Ling Q, Gray GC, Liu Y. Molecular typing of human adenoviruses among hospitalized patients with respiratory tract infections in a tertiary Hospital in Guangzhou, China between 2017 and 2019. BMC Infect Dis 2021; 21:748. [PMID: 34344310 PMCID: PMC8330471 DOI: 10.1186/s12879-021-06412-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 04/07/2021] [Accepted: 07/18/2021] [Indexed: 12/02/2022] Open
Abstract
Background Human Adenoviruses (HAdVs) cause a wide array of illnesses in all age groups. They particularly cause frequent morbidity among children. In China, human adenovirus types 3, 4, 7, 11, 14, 21, and 55 have caused at least seven outbreaks since 2000. However, limited studies are available regarding the epidemiological patterns and diversity of HAdVs types among hospitalized patients with respiratory tract infections (RTIs). Methods To understand the epidemiology and subtype distribution of HAdV infections associated with RTIs in China, nasal swab (NS) clinical samples were collected from 4129 patients in a Guangzhou hospital between August 2017 and October 2019. PCR, sequencing, and phylogenetic analysis were performed on these specimens to identify HAdV subtypes. Results HAdV was successfully sequenced in 99 (2.4%) of the 4129 NS specimens, with the highest HAdV prevalence (6.3%) found in children between the ages of 5 and 10 years. Among HAdV-positive specimens, the most prevalent genotypes identified were HAdV-B3 (55.6%) and HAdV-B7 (25.3%). The most common symptoms in the HAdV-infected patients were fever (100%), cough (80.8%), and rhinorrhea (71.8%). HAdV infections were detected throughout the year with a relatively higher prevalence in summer. Conclusion All ages suffer adenovirus infections, but young children are at the greatest risk. This study data demonstrates that at least three species of HAdVs (species B, C, and E) are circulating in Guangzhou City, China. As antiviral therapies and type-specific vaccines become available, such epidemiological data will be useful in guiding therapy and public health interventions. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-06412-0.
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Affiliation(s)
- Xinye Wang
- Global Health Research Center, Duke Kunshan University, Kunshan, China.,Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Dawei Wang
- Emergency Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111 Dade Road, Yuexiu District, Guangzhou, China
| | - Sajid Umar
- Global Health Research Center, Duke Kunshan University, Kunshan, China
| | - Sheng Qin
- Laboratory Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qiong Ling
- Laboratory Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gregory C Gray
- Global Health Research Center, Duke Kunshan University, Kunshan, China. .,Division of Infectious Diseases, Duke University, School of Medicine, DUMC Box 102359, Durham, NC, 27710, USA. .,Duke Global Health Institute, Duke University, Durham, NC, USA. .,Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore.
| | - Yuntao Liu
- Emergency Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, No. 111 Dade Road, Yuexiu District, Guangzhou, China.
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11
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Yang C, Zhu C, Qian Y, Deng J, Zhang B, Zhu R, Wang F, Sun Y, Chen D, Guo Q, Zhou Y, Yu L, Cao L, Zhao L. Application of Human Adenovirus Genotyping by Phylogenetic Analysis in an Outbreak to Identify Nosocomial Infection. Virol Sin 2021; 36:393-401. [PMID: 33001388 PMCID: PMC7527426 DOI: 10.1007/s12250-020-00299-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/05/2020] [Indexed: 11/20/2022] Open
Abstract
Nosocomial infections are common in pediatric patients and can be fatal in infants and immunocompromised patients. In September 2018, a high positive rate of human adenovirus HAdV was occurred among hospitalized children in the Children's Hospital Affiliated to the Capital Institute of Paediatrics in Beijing. To investigate whether this outbreak of HAdV was related to nosocomial infections or the result of community infections, we collected respiratory specimens from patients with acute respiratory infections in a respiratory ward during June to December 2018, and screened for respiratory viruses. Among 1,840 cases included, 95 (5.2%, 95/1840) were positive for HAdV and 81 were genotyped based on phylogenetic analysis, including seven as HAdV-1 (8.6%), 30 HAdV-3 (37.0%), two HAdV-6 (2.5%), and 42 HAdV-7 (51.9%). More HAdV-positive samples were collected in August (4.7%, 12/255), September (15.0%, 41/274) and October (6.9%, 17/247), with a peak in September 2018. By combining the results of HAdV phylogenetic analysis with clinical data of patients, there were 77 cases (4.2%, 77/1840; 81.1%, 77/95) excluded from nosocomial infections, eight cases representing possible infections transmitted by visitors or attending parents, three cases without sequences that might have been due to infection transmitted by roommates positive for HAdV, one case of a roommate without an HAdV sequence, and six cases that shared highly homologous sequences with those of their roommates, for which nosocomial infections might be considered. In conclusion, genotyping of HAdVs based on phylogenetic analysis combined with clinical information provides a powerful method to distinguish nosocomial infections from community acquired infection, especially when tracing the origins of nosocomial infections.
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Affiliation(s)
- Chuanyu Yang
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Chunmei Zhu
- Department of Respiratory Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yuan Qian
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Jie Deng
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Baoyuan Zhang
- Hospital Infection-Control Department, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Runan Zhu
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Fang Wang
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yu Sun
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Dongmei Chen
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Qi Guo
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yutong Zhou
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Lei Yu
- Hospital Infection-Control Department, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Ling Cao
- Department of Respiratory Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, 100020, China.
| | - Linqing Zhao
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing, 100020, China.
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Miro E, Del Cuerpo M, Rubio M, Berengua C, Español M, Marin P, Vela JI, Pomar V, Gutierrez C, Navarro F, Rabella N. Whole-genome analysis to describe a human adenovirus D8 conjunctivitis outbreak in a tertiary hospital. J Med Virol 2021; 93:4840-4845. [PMID: 33543795 DOI: 10.1002/jmv.26850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 12/02/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 11/07/2022]
Abstract
Conjunctivitis is a frequent ocular disorder caused by human adenoviruses (HAdVs). Only a few of the 45 HAdV-D species are associated with epidemic keratoconjunctivitis, including HAdV-D8. Nosocomial outbreaks due to HAdV-D8 have been rarely described, because keratoconjunctivitis cases are clinically diagnosed and treated without having to characterize the causative agent. Moreover, molecular typing is tedious when using classical techniques. In this study, a hospital outbreak of conjunctivitis caused by HAdV-D8 was characterized using the recently developed whole-genome sequencing (WGS) method. Of the 363 patients attending the Ophthalmology Department between July 13 and August 13, 2018, 36 may have acquired intrahospital conjunctivitis. Also, 11 of 22 samples sent to the Virology section were selected for WGS analysis. The WGS results revealed that 10 out of 11 HAdV-D8 strains were closely related. The remaining strain (Case 28) was more similar to a strain from an outbreak in Germany obtained from a public sequence database. WGS results showed that outbreak HAdV-D8 strains had a minimum percentage of identity of 94.3%. WGS is useful in a clinical setting, because it avoids carrying out viral culture or specific polymerase chain reaction sequencing. The public availability of sequence reads makes it easier to compare clusters in circulation. In conclusion, WGS can play an important role in standard routines to describe viral outbreaks.
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Affiliation(s)
- Elisenda Miro
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Margarita Del Cuerpo
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Marc Rubio
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Carla Berengua
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Montserrat Español
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Pilar Marin
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Jose I Vela
- Department of Ophthalmology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Virginia Pomar
- Department of Internal Medicine, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Cristina Gutierrez
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Ferran Navarro
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
| | - Núria Rabella
- Department of Microbiology, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau, Barcelona, Spain
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Huang X, Yi Y, Chen X, Wang B, Long Y, Chen J, Rongkavilit C. Clinical Characteristics of 204 Children With Human Adenovirus Type 7 Pneumonia Identified by Whole Genome Sequencing in Liuzhou, China. Pediatr Infect Dis J 2021; 40:91-5. [PMID: 33433157 DOI: 10.1097/INF.0000000000002925] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Clinical knowledge of human adenovirus type 7 (HAdV-7) pneumonia in children remains limited. Moreover, predictors for disease severity are largely unknown. METHODS This is a retrospective study of children hospitalized at Liuzhou Maternal and Child Health Hospital, China, with HAdV-7 pneumonia in 2018-2019. Demographics, clinical characteristics, laboratory results, and imaging data were collected. HAdV-7 was identified in plasma using whole genome sequencing, which yielded quantitative HAdV-7 sequence numbers. RESULTS There were 204 children; 145 (71%) were <2 years of age. There were 68 children with severe pneumonia (SP) and 136 with nonsevere pneumonia (NSP). Up to 43% in SP group with respiratory failure (SP-RF) were <12 months of age. Median duration of fever before hospitalization was shorter in NSP group than SP groups (P < 0.01). Fourteen (6.9%) underwent mechanical ventilation. There was a significant difference in mean plasma HAdV-7 sequence numbers among SP-RF, SP without respiratory failure (SP-NRF), and NSP groups (2485 ± 165, 2034 ± 124, and 286 ± 35, respectively) (P < 0.01). In a logistic regression analysis, we found that elevated plasma HAdV-7 sequence numbers significantly increased the risk of severe HAdV-7 pneumonia (OR 1.80, 95% confidence interval: 1.59-2.60, P < 0.01) after adjusting for age, fever duration, platelet counts, and serum lactate dehydrogenase levels. CONCLUSIONS Over two-thirds of children hospitalized with HAdV-7 pneumonia were <2 years of age. Approximately 40% of those with SP associated with respiratory failure were <12 months of age. Those with SP exhibited higher plasma HAdV-7 sequence numbers. Thus, plasma HAdV-7 sequence numbers have a potential in predicting severity of HAdV-7 pneumonia in children.
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14
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Probst V, Datyner EK, Haddadin Z, Rankin DA, Hamdan L, Rahman HK, Spieker A, Stewart LS, Guevara C, Yepsen E, Schmitz JE, Halasa NB. Human adenovirus species in children with acute respiratory illnesses. J Clin Virol 2021; 134:104716. [PMID: 33360858 PMCID: PMC8324062 DOI: 10.1016/j.jcv.2020.104716] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/21/2020] [Accepted: 12/06/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Human adenovirus (HAdV) species B, C, and E are commonly associated with acute respiratory illnesses (ARI). We sought to determine the association between HAdV species and ARI severity in children over one respiratory season at Monroe Carell Jr. Children's Hospital at Vanderbilt. METHODS We conducted a retrospective cohort study of children with HAdV from a provider-ordered BioFire® FilmArray Respiratory Pathogen Panel 2.0 (RPP) from 05/2018-06/2019. Type-specific PCR assays for HAdV-B3, B7, B11, B14, B16, B21, HAdV-C1, C2, C5, C6, and HAdV-E4 were performed. Demographics, clinical characteristics, and outcome data were compared between HAdV species. RESULTS Of 4514 respiratory specimens collected, 2644 (59 %) had at least one pathogen detected by RPP, and 384 (15 %) were HAdV-positive; 342 (89 %) were available for research testing with 306 (89 %) specimens from unique symptomatic individuals; 237 (77 %) were positive for the following species: 104 (44 %) HAdV-B, 114 (48 %) HAdV-C, 9 (4%) HAdV-E, and 10 (4%) with co-detection between species. The majority with identified HAdV species were seen in the ED (62 %), and approximately one-third were hospitalized. Patients with HAdV-C were more likely to be younger, hospitalized, and have a higher frequency of seizures compared to HAdV-B. CONCLUSION HAdV-C and HAdV-B were the most common species detected, with differences in clinical characteristics and outcomes noted. Additional studies with larger sample sizes focusing on a high-risk pediatric population are necessary to determine if differences in illness severity across individual HAdV types exist to guide further type-specific HAdV vaccine development.
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Affiliation(s)
- Varvara Probst
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA.
| | - Emily K Datyner
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Zaid Haddadin
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Danielle A Rankin
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA; Vanderbilt Epidemiology PhD Program, Vanderbilt University School of Medicine, 1161 21st Ave S, Nashville, TN, 37232, USA
| | - Lubna Hamdan
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Herdi K Rahman
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Andrew Spieker
- Department of Biostatistics, Vanderbilt University Medical Center, 2525 West End Ave #1100, Nashville, TN, 37203, USA
| | - Laura S Stewart
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Claudia Guevara
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Erin Yepsen
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
| | - Jonathan E Schmitz
- Departments of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, 1211 Medical Center Dr, Nashville, TN, 37232, USA
| | - Natasha B Halasa
- Departments of Pediatrics, Vanderbilt University Medical Center, 1161 21st Ave. South, Nashville, TN, 37232, USA
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Vanderburg S, Wijayaratne G, Danthanarayana N, Jayamaha J, Piyasiri B, Halloluwa C, Sheng T, Amarasena S, Kurukulasooriya R, Nicholson BP, Peiris JSM, Gray GC, Gunasena S, Nagahawatte A, Bodinayake CK, Woods CW, Devasiri V, Tillekeratne LG. Outbreak of severe acute respiratory infection in Southern Province, Sri Lanka in 2018: a cross-sectional study. BMJ Open 2020; 10:e040612. [PMID: 33158834 PMCID: PMC7651749 DOI: 10.1136/bmjopen-2020-040612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVES To determine aetiology of illness among children and adults presenting during outbreak of severe respiratory illness in Southern Province, Sri Lanka, in 2018. DESIGN Prospective, cross-sectional study. SETTING 1600-bed, public, tertiary care hospital in Southern Province, Sri Lanka. PARTICIPANTS 410 consecutive patients, including 371 children and 39 adults, who were admitted with suspected viral pneumonia (passive surveillance) or who met case definition for acute respiratory illness (active surveillance) in May to June 2018. RESULTS We found that cocirculation of influenza A (22.6% of cases), respiratory syncytial virus (27.8%) and adenovirus (AdV) (30.7%; type B3) was responsible for the outbreak. Mortality was noted in 4.5% of paediatric cases identified during active surveillance. Virus type and viral coinfection were not significantly associated with mortality. CONCLUSIONS This is the first report of intense cocirculation of multiple respiratory viruses as a cause of an outbreak of severe acute respiratory illness in Sri Lanka, and the first time that AdV has been documented as a cause of a respiratory outbreak in the country. Our results emphasise the need for continued vigilance in surveying for known and emerging respiratory viruses in the tropics.
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Affiliation(s)
- Sky Vanderburg
- Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Medicine, University of California San Francisco School of Medicine, San Francisco, California, USA
| | | | | | - Jude Jayamaha
- Medical Research Institute Sri Lanka, Colombo, Sri Lanka
| | | | | | - Tianchen Sheng
- Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Global Health Institute, Durham, North Carolina, USA
| | | | | | | | | | - Gregory C Gray
- Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Global Health Institute, Durham, North Carolina, USA
| | | | - Ajith Nagahawatte
- Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
- Duke Global Health Institute, Durham, North Carolina, USA
| | - Champica K Bodinayake
- Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
- Duke Global Health Institute, Durham, North Carolina, USA
| | - Christopher W Woods
- Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Global Health Institute, Durham, North Carolina, USA
| | | | - L Gayani Tillekeratne
- Medicine, Duke University School of Medicine, Durham, North Carolina, USA
- Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
- Duke Global Health Institute, Durham, North Carolina, USA
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16
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Dai H, Xi H, Huang L, Yuan Z, Liao Y, Tang Y, Liao J, Min L, Yu Z. Molecular Epidemiology and Clinical Features Analysis of Respiratory Adenovirus Infections Reveals Correlations between Genotype, Inflammatory Biomarkers, and Disease Severity. Biomed Res Int 2020; 2020:4357910. [PMID: 33145348 DOI: 10.1155/2020/4357910] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/24/2020] [Accepted: 10/10/2020] [Indexed: 01/28/2023]
Abstract
Background Human adenoviruses (HAdVs) are commonly causing respiratory disease. We molecularly genotyped HAdV circulating in Chinese hospitalized children with respiratory infections and summarized the clinical profiles and common inflammatory biomarkers, so as to better determine their associations with disease severity. Method Children with respiratory single HAdV infection cases that occurred from December 2017 to March 2019 were enrolled for a cross-sectional study. Clinical/laboratory features based on the genotypes of respiratory HAdV infection were reviewed for comparative analysis. Results A total of 84 patients were enrolled, and HAdV types were identified from 82 patients. Species B (HAdV-7, 44%; HAdV-3, 43%, and HAdV-14, 5%) was the most common, followed by C (HAdV-2, 4% and HAdV-1, 1%) and E (HAdV-4, 1%). Severe HAdV infection and HAdV-7 infection groups were associated with significantly longer duration of fever and hospitalized days, higher morbidity of tachypnea/dyspnea, more pleural effusion, more respiratory rales, more frequently required mechanical ventilation, and significantly higher fatality rate. The elevated procalcitonin (PCT) and C-reactive protein (CRP) levels were significantly associated with severe HAdV infection. Conclusions HAdV-7 and HAdV-3 were the most common types among children with respiratory adenovirus infection; vaccines against these two genotypes are in urgent need. PCT and CRP are significantly associated with the severity of HAdV infection.
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Bastug A, Altas AB, Koc BT, Bayrakdar F, Korukluoglu G, Bodur H, Oguzoglu TC. Molecular characterization of human adenoviruses associated with respiratory infection in Turkey. APMIS 2020; 129:23-31. [PMID: 33015856 DOI: 10.1111/apm.13088] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/29/2020] [Indexed: 11/27/2022]
Abstract
Human adenoviruses (HAdVs) are responsible for various clinical diseases. Molecular epidemiological studies of respiratory HAdVs are limited in Turkey. To determine the main genotypes and epidemiological characteristics of HAdVs in patients with respiratory symptoms. HAdV PCR-positive extracts of nasal/nasopharyngeal specimens sent to the Turkish Public Health Institution from various cities of Turkey in 2015-2016 were investigated by seminested PCR. Partial sequence analysis of the hexon gene of HAdVs was performed. SPSSv.24.0 was used. A total of 23/68 (33.82%) HAdV-positive samples were amplified. Mastadenovirus B, C, D, and F were detected and mastadenovirus B (10/23; 43.5%) and C (10/23; 43.5%) were predominant strains. Interestingly, HAdV-F known to have gastrointestinal system tropism was detected in two patients with respiratory symptoms. HAdV-B3 was the most prevalent genotype (9/23; 39.1%). Also, HAdV-B7 is defined as a reemerging pathogen. It is noteworthy that there is a cluster of four HAdV-C strains showing a close paraphyletic relationship with HAdV-2/6 intertypic recombination. To our knowledge, this is the first study showing that HAdV-B7 reemerging pathogen circulating in patients with respiratory infections in our country. It is also necessary to emphasize that HAdV-2/6 recombinant strains were detected in this study for the first time in Turkey.
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Affiliation(s)
- Aliye Bastug
- Department of Infectious Disease and Clinical Microbiology, Ankara City Hospital, University of Health Sciences Turkey, Ankara, Turkey
| | - Ayse Basak Altas
- National Virology Reference Laboratory, General Directorate of Public Health, Ankara, Turkey
| | - Bahattin Taylan Koc
- Department of Virology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Fatma Bayrakdar
- National Virology Reference Laboratory, General Directorate of Public Health, Ankara, Turkey
| | - Gülay Korukluoglu
- National Virology Reference Laboratory, General Directorate of Public Health, Ankara, Turkey
| | - Hurrem Bodur
- Department of Infectious Disease and Clinical Microbiology, Ankara City Hospital, University of Health Sciences Turkey, Ankara, Turkey
| | - Tuba Cigdem Oguzoglu
- Department of Virology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
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Xu N, Chen P, Wang Y. Evaluation of Risk Factors for Exacerbations in Children with Adenoviral Pneumonia. Biomed Res Int 2020; 2020:4878635. [PMID: 32802848 DOI: 10.1155/2020/4878635] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/17/2020] [Accepted: 07/10/2020] [Indexed: 12/18/2022]
Abstract
Purpose The aim of this work was to analyze clinical features and laboratory findings of children with adenovirus pneumonia and guide clinical diagnosis, treatment, and assessment of disease severity. Material and Methods. Retrospective analysis of clinical data of 285 children with adenoviral pneumonia who were hospitalized in Wuhan Children's Hospital from December 2018 to October 2019. According to the assessment criteria for severe pneumonia, it was divided into the severe group (92 cases) and the nonsevere group (193 cases). Collected clinical manifestations, complications, and laboratory test indicators in two groups of children and conducted all statistical analyses. Results The risk of fever and wheezing was significantly higher in the severe group than in the nonsevere group. The difference was statistically significant (P < 0.05). The risk of complications in the severe group was significantly higher than that in the nonsevere group. The difference was statistically significant (P < 0.05). The levels of AST, LDH-L, PCT, ferritin, and D-dimer in the severe group were significantly higher than those in the nonsevere group. The difference was statistically significant (P < 0.05). Conclusion Children with severe adenovirus pneumonia have severe clinical manifestations and many complications. AST, LDH-L, PCT, ferritin, and D-dimer levels have important clinical implications for assessing disease severity.
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Zou L, Yi L, Yu J, Song Y, Liang L, Guo Q, Zhuang X, Zhang Y, Kang M, Wu J. Adenovirus infection in children hospitalized with pneumonia in Guangzhou, China. Influenza Other Respir Viruses 2020; 15:27-33. [PMID: 32761743 PMCID: PMC7767961 DOI: 10.1111/irv.12782] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 11/01/2019] [Revised: 06/10/2020] [Accepted: 06/18/2020] [Indexed: 01/21/2023] Open
Abstract
Background HAdV infection can cause a variety of diseases. Although infections with HAdVs often are mild, life‐threatening respiratory disease can occur. Pneumonia is one of the more serious types of HAdV‐induced respiratory disease in children. In this study, we determined the prevalence and genotype of HAdVs among children hospitalized with pneumonia in Guangzhou, China. Methods Nasopharyngeal swabs (NPSs) were collected from children hospitalized with pneumonia in Guangzhou, China, from January 2013 to June 2019. HAdVs were detected by real‐time polymerase chain reaction assay, and hexon, fiber, and penton gene were amplified and used for phylogenetic analysis. Epidemiological data were analyzed using SPSS16.0 software. Results and Conclusions A total of 1778 children hospitalized with pneumonia were enrolled. The overall HAdV detection rate was 3.26%. And the yearly detection rate varied from around 2.5% in 2013‐2017 to around 6% in 2018‐2019. Children >5 years had the highest HAdV infection rate. 92.86% of HAdV sequences obtained in this study were belonged to species B, and no recombination was observed. HAdV‐B7 and HAdV‐B3 were the common types detected in the study period, with the predominant HAdV genotype shifted from HAdV‐B3 in 2015‐2016 to HAdV‐B7 in 2017‐2018. The discrepancies in HAdV detection rates in different study period and changes of HAdV predominant types over time highlighted the importance of continued surveillance.
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Affiliation(s)
- Lirong Zou
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | - Lina Yi
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Centre for Disease Control and Prevention, Guangzhou, China
| | - Jianxiang Yu
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | - Yinchao Song
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | - Lijun Liang
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | - Qianfang Guo
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | - Xue Zhuang
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | | | - Min Kang
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China
| | - Jie Wu
- Guangdong Provincial Center for Diseases Control and prevention, Guangzhou, China.,Southern Medical University, Guangzhou, China
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Yu J, Zhao S, Rao H. Whole genomic analysis of a potential recombinant human adenovirus type 1 in Qinghai plateau, China. Virol J 2020; 17:111. [PMID: 32698808 PMCID: PMC7376653 DOI: 10.1186/s12985-020-01387-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/15/2020] [Indexed: 12/28/2022] Open
Abstract
Human adenoviruses (HAdVs) are prevalent in patients with respiratory infections, in which recombination has important implications for viral detection and pathogenicity. However, less HAdVs recombination was reported in Qinghai plateau. In this study, we obtained an HAdV-C strain (QH-1665/2018) isolated from an infant aged one month with influenza-like illness in Qinghai Province in 2018. The whole genome sequence was generated by next-generation sequencing, and compared with that of other HAdV-C strains available in public. The strain QH-1665/2018 genome is comprised of 36,014 nucleotides and encoded 36 putative proteins. Phylogenetic analysis of complete HAdV genomes and 3 major antigen genes (penton, hexon and fiber) showed that strain QH-1665/2018 was clustered into HAdV-1 [P1H1F1]. Recombination analysis based on the RDP4 package and SimPlot software showed that QH-1665/2018 was a recombinant involving HAdV-1, HAdV-2 and HAdV-5, which was then re-confirmed by phylogenetic analysis. Our results suggest that HAdV-C recombination is highly complex, should be focused on, and the epidemiological and virological surveillance should be strengthened in Qinghai Province.
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Affiliation(s)
- Juan Yu
- Department of Basic Medical Sciences, Changzhi Medical College, 161 Jiefang East Street, Changzhi, 046000, China
| | - Shengcang Zhao
- Center of Hygiene Inspection, Qinghai Center for Disease Control and Prevention, 55 Bayi Middle Road, Xining, 810007, China
| | - Huaxiang Rao
- Department of Public Health and Preventive Medicine, Changzhi Medical College, 161 Jiefang East Street, Changzhi, 046000, China.
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Wang L, Zhang M, Li J, Yang G, Huang Q, Li J, Wang H, He S, Li E. Histone Deacetylase Inhibitors Promote Latent Adenovirus Reactivation from Tonsillectomy Specimens. J Virol 2020; 94:e00100-20. [PMID: 32269118 DOI: 10.1128/JVI.00100-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/24/2020] [Indexed: 12/20/2022] Open
Abstract
Adenovirus (HAdV) infection is a common cause of illness among young children, immunocompromised patients, and transplant recipients. The majority of HAdV infections are self-limited, but recurring infection is frequently encountered in young children and may require hospitalization. In this study, we surveyed the presence of HAdV in tonsillectomy samples and investigated epigenetic conditions that contributed to HAdV reactivation. HAdV DNA was detected from 86.7% donors. The lymphocytes isolated from the samples failed to produce infectious HAdV after incubation, suggesting the viruses remained in a latent status. To determine whether epigenetic factors played a role in HAdV reactivation, isolated lymphocytes were treated with a small compound library. Viral DNA replication and infectious HAdV production were assayed by PCR and by a secondary infection assay. We identified several compounds, mainly pan- and selective histone deacetylase (HDAC) inhibitors, which showed activity to reactivate HAdV from latency. The viruses were isolated and were determined as species C HAdV. Using a model of HAdV lytic infection, we showed that the compounds promoted histone-3 acetylation and association with viral early gene promoters. In addition to demonstrate the palatine tonsils as a reservoir of latent HAdV, this study uncovers a critical role of histone acetylation in HAdV reactivation, linking HAdV latency to recurrent HAdV infection.IMPORTANCE Respiratory tract infection by adenoviruses is among the most common diseases in children, attributing to approximately 20% of hospitalizations of children with acute respiratory infection (ARI). Adenovirus transmits by direct contact, but recurrent infection is common. Ever since its isolation, adenovirus has been known to have the ability to establish persistent or latent infection. We found 87.7% tonsillectomy specimens contained detectable amounts of adenoviral DNA. Isolated lymphocytes did not produce infectious adenoviruses without stimulation. By screening an epigenetic informer compound library, we identified several histone deacetylase inhibitors that promoted adenovirus reactivation that was evidenced by increased viral DNA replication and production of infectious viruses. The human tonsils are covered with bacterial pathogens that may utilize pathogen-associated pattern molecules or metabolites to cause epigenetic activation and proinflammatory gene transcription, which may lead to viral reactivation from latency. The study shows that recurrent adenovirus infection could arise from reactivation of residing virus from previous infections.
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Zhao MC, Guo YH, Qiu FZ, Wang L, Yang S, Feng ZS, Li GX. Molecular and clinical characterization of human adenovirus associated with acute respiratory tract infection in hospitalized children. J Clin Virol 2019; 123:104254. [PMID: 31901884 PMCID: PMC7106522 DOI: 10.1016/j.jcv.2019.104254] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 12/01/2019] [Accepted: 12/21/2019] [Indexed: 01/22/2023]
Abstract
3.71% of children with ARTI exhibited HAdV positive. HAdV-2, HAdV-3 and HAdV-7 were the predominant types identified from ARTI children. 74.85% of HAdV were co-detected with other respiratory pathogens, most commonly HRV. The co-detection rate of HAdV-C was significant higher than those of HAdV-B. HAdV-7 positive children may not present more severe clinical outcome.
Background Human adenovirus (HAdV) is a common pathogen in children that can cause acute respiratory tract infection (ARTI), but the molecular epidemiological and clinical information relating to HAdV among hospitalized children with ARTI are few reported in China. Objectives To evaluate the epidemiological, clinical, and molecular characteristics of HAdV infections among hospitalized children with ARTI in Hebei, Northern China from June 2017 to May 2018. Study design A 12-month longitudinal, retrospective study on HAdV, typed by nested polymerase chain reaction targeting the hexon gene’s hypervariable region (typing was merely performed by sequencing of the hexon neutralization epitope and thus genotypes could not be identified unequivocally), associated with ARTI was performed. The epidemiological and clinical data of different types of HAdV were analyzed using statistical product and service solutions (SPSS) 21.0 software. Results HAdV was detected in 330 (3.71%) of the 8906 specimens, with most (88.48%, 292/330) HAdV-positives cases detected among children < 3 years old. HAdV were detected throughout the year with a higher prevalence in spring. 11 types were identified, with HAdV-2 (33.33%, 110/330) as the predominant type, followed by HAdV-3 (21.21%, 70/330) and HAdV-7 (13.94%, 46/330). Of the 330 HAdV-positive specimens, 247 (74.85%) were co-detected with other respiratory pathogens, most commonly rhinovirus (HRV) (58.7%, 145/247). Additionally, patients with HAdV-7 positive had longer duration of fever than HAdV-2 or -3 positive patients. Conclusions During the study period, HAdV-2, HAdV-3 and HAdV-7 were the predominant types identified from children with ARTI in Hebei Province. Pediatric patients with HAdV-7 positive may not present more severe clinical outcome except a longer duration of fever.
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Affiliation(s)
- Meng-Chuan Zhao
- Institute of Pediatric Research, Children's Hospital of Hebei Province, Affiliated to Hebei Medical University, 133 Jianhua South Street, Shijiazhuang, Hebei Province, 050031, China.
| | - Ying-Hui Guo
- Institute of Pediatric Research, Children's Hospital of Hebei Province, Affiliated to Hebei Medical University, 133 Jianhua South Street, Shijiazhuang, Hebei Province, 050031, China.
| | - Fang-Zhou Qiu
- Department of Laboratory Medicine, Tianjin Children's Hospital, 238 Longyan Road, Tianjin, 30074, China.
| | - Le Wang
- Institute of Pediatric Research, Children's Hospital of Hebei Province, Affiliated to Hebei Medical University, 133 Jianhua South Street, Shijiazhuang, Hebei Province, 050031, China.
| | - Shuo Yang
- Institute of Pediatric Research, Children's Hospital of Hebei Province, Affiliated to Hebei Medical University, 133 Jianhua South Street, Shijiazhuang, Hebei Province, 050031, China.
| | - Zhi-Shan Feng
- Department of Laboratory Medicine, People's Hospital of Hebei Province, 384 Heping West Road, Shijiazhuang, Hebei Province, 050051, China.
| | - Gui-Xia Li
- Institute of Pediatric Research, Children's Hospital of Hebei Province, Affiliated to Hebei Medical University, 133 Jianhua South Street, Shijiazhuang, Hebei Province, 050031, China.
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Liu Z, Tian X, Liu W, Xian Y, Chen W, Chen H, Zhou R. Development of two antigen-binding fragments to a conserved linear epitope of human adenovirus and their application in immunofluorescence. PLoS One 2019; 14:e0219091. [PMID: 31242267 PMCID: PMC6594634 DOI: 10.1371/journal.pone.0219091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 06/14/2019] [Indexed: 01/16/2023] Open
Abstract
Detection of human adenoviruses (HAdVs) in nasopharyngeal swab samples by immunofluorescence assay (IFA) will be valuable for diagnosing HAdV infection, which is a leading cause of severe respiratory tract disease, and will help in curbing the spread of HAdV. Monoclonal antibodies employed in IFA for HAdV detection should ideally target highly conserved epitope types. Here, we describe the development of two antigen-binding fragments (Fabs) with specific reactivity to HAdV using phage antibody library technology. When tested with IFA, both Fabs recognized cells infected with several types of HAdV, some of which have been identified in epidemics globally, or associated with outbreaks of severe or fatal acute respiratory diseases. The specificity and cross-reactivity of both Fabs to HAdVs indicated that the generated Fabs could be applied in the development of IFAs to detect HAdVs. Both Fabs bound to the knob proteins, as shown by chemiluminescence enzyme immunoassay and western blot. In addition, epitope mapping showed that both Fabs recognized a conserved linear epitope among several types of HAdV. Two different Fabs recognized the same epitope, suggesting that the epitope triggered the production of at least two kinds of antibodies in the body. The generated Fabs exerted no neutralization against HAdVs. The results demonstrate that both Fabs bind to an epitope that plays no role in neutralization of HAdV.
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Affiliation(s)
- Zhenwei Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Xingui Tian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Wenkuan Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Yuting Xian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Weilue Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Huaying Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Rong Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
- * E-mail:
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Yao LH, Wang C, Wei TL, Wang H, Ma FL, Zheng LS. Human adenovirus among hospitalized children with respiratory tract infections in Beijing, China, 2017-2018. Virol J 2019; 16:78. [PMID: 31196108 PMCID: PMC6567909 DOI: 10.1186/s12985-019-1185-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [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: 03/08/2019] [Accepted: 05/24/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Human adenoviruses (HAdVs) cause a wide range of diseases. However, the genotype diversity and epidemiological information relating to HAdVs among hospitalized children with respiratory tract infections (RTIs) is limited. Here, we describe the epidemiology and genotype distribution of HAdVs associated with RTIs in Beijing, China. METHODS Nasopharyngeal aspirates (NPA) were collected from hospitalized children with RTIs from April 2017 to March 2018. HAdVs were detected by a TaqMan-based quantitative real-time polymerase chain reaction (qPCR) assay, and the hexon gene was used for phylogenetic analysis. Epidemiological data were analyzed using statistical product and service solutions (SPSS) 21.0 software. RESULTS HAdV was detected in 72 (5.64%) of the 1276 NPA specimens, with most (86.11%, 62/72) HAdV-positives cases detected among children < 6 years of age. HAdV-B3 (56.06%, 37/66) and HAdV-C2 (19.70%, 13/66) were the most frequent. Of the 72 HAdV-infected cases, 27 (37.50%) were co-infected with other respiratory viruses, most commonly parainfluenza virus (12.50%, 9/72) and rhinovirus (9.72%, 7/72). The log number of viral load ranged from 3.30 to 9.14 copies per mL of NPA, with no significant difference between the HAdV mono- and co-infection groups. The main clinical symptoms in the HAdV-infected patients were fever and cough, and 62 (86.11%, 62/72) were diagnosed with pneumonia. Additionally, HAdVs were detected throughout the year with a higher prevalence in summer. CONCLUSIONS HAdV prevalence is related to age and season. HAdV-B and HAdV-C circulated simultaneously among the hospitalized children with RTIs in Beijing, and HAdV-B type 3 and HAdV-C type 2 were the most frequent.
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Affiliation(s)
- Li-Hong Yao
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, 100 Ying-Xin St., Xi-Cheng District, Beijing, 100052, China
| | - Chao Wang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, 100 Ying-Xin St., Xi-Cheng District, Beijing, 100052, China
| | - Tian-Li Wei
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Hao Wang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, 100 Ying-Xin St., Xi-Cheng District, Beijing, 100052, China
| | - Fen-Lian Ma
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, 100 Ying-Xin St., Xi-Cheng District, Beijing, 100052, China.
| | - Li-Shu Zheng
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, China CDC, 100 Ying-Xin St., Xi-Cheng District, Beijing, 100052, China.
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LIU GS, LI H, ZHAO SC, LU RJ, NIU PH, TAN WJ. Viral and Bacterial Etiology of Acute Febrile Respiratory Syndrome among Patients in Qinghai, China. Biomed Environ Sci 2019; 32:438-445. [PMID: 31262389 PMCID: PMC7135780 DOI: 10.3967/bes2019.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE This study was conducted to investigate the viral and bacterial etiology and epidemiology of patients with acute febrile respiratory syndrome (AFRS) in Qinghai using a commercial routine multiplex-ligation-nucleic acid amplification test (NAT)-based assay. METHODS A total of 445 nasopharyngeal swabs specimens from patients with AFRS were analyzed using the RespiFinderSmart22kit (PathoFinder BV, Netherlands) and the LightCycler 480 real-time PCR system. RESULTS Among the 225 (225/445, 51%) positive specimens, 329 positive pathogens were detected, including 298 (90.58%) viruses and 31 (9%) bacteria. The most commonly detected pathogens were influenza virus (IFV; 37.39%; 123/329), adenovirus (AdV; 17.02%; 56/329), human coronaviruses (HCoVs; 10.94%; 36/329), rhinovirus/enterovirus (RV/EV; 10.03%; 33/329), parainfluenza viruses (PIVs; 8.51%; 28/329), and Mycoplasma pneumoniae (M. pneu; 8.51%; 28/329), respectively. Among the co-infected cases (17.53%; 78/445), IFV/AdV and IFV/M. pneu were the most common co-infections. Most of the respiratory viruses were detected in summer and fall. CONCLUSION In our study, IFV-A was the most common respiratory pathogen among 22 detected pathogens, followed by AdV, HCoV, RV/EV, PIV, and M. pneu. Bacteria appeared less frequently than viruses, and co-infection was the most common phenomenon among viral pathogens. Pathogens were distributed among different age groups and respiratory viruses were generally active in July, September, and November. Enhanced surveillance and early detection can be useful in the diagnosis, treatment, and prevention of AFRS, as well as for guiding the development of appropriate public health strategies.
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Affiliation(s)
- Gao Shan LIU
- NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Hong LI
- Center for Disease Control and Prevention of Qinghai Province, Xining 810007, Qinghai, China
| | - Sheng Cang ZHAO
- Center for Disease Control and Prevention of Qinghai Province, Xining 810007, Qinghai, China
| | - Rou Jian LU
- NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Pei Hua NIU
- NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Wen Jie TAN
- NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Kenmoe S, Vernet MA, Le Goff J, Penlap VB, Vabret A, Njouom R. Molecular characterization of human adenovirus associated with acute respiratory infections in Cameroon from 2011 to 2014. Virol J 2018; 15:153. [PMID: 30285778 PMCID: PMC6171299 DOI: 10.1186/s12985-018-1064-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 07/31/2018] [Accepted: 09/25/2018] [Indexed: 12/20/2022] Open
Abstract
Background Human adenoviruses (HAdVs) cause a wide range of diseases worldwide, including respiratory infections. Studies on HAdV molecular epidemiology are limited in Cameroon. The purpose of this study is to document the different types HAdV circulating in Cameroon in children with acute respiratory infections. Methods Nasopharyngeal swabs were collected from 811 children under 15 years from 2011 to 2014. The HAdV detection was assessed by semi-quantitative generic PCR r-gene®. The HAdV-positive samples were typed by amplification and sequencing of partial hexon gene and a real-time PCR. Demographic data were collected and analyzed. The infection and hospitalization risk factors were assessed thought the Chi-square test. Results A total of 137/220 HAdV-positive samples were amplified successfully. Six species of HAdV (Mastadenovirus A to F) were detected with B (108/220) and C (47/220) being the predominant strains. Hospitalization and age were significantly associated to HAdV-B and HAdV-C respectively. Phylogenetic analysis of HAdV-B3 virus (18) and B7 (5) shows a conserved and a significant temporal stability in relation to the reference sequence (99.1 to 100% of similarity). Conclusion This study reported HAdV species and types detected in children with acute respiratory infections in Cameroon between September 2011 and July 2014. These results support further evaluation of the spatio-temporal circulation pattern of HAdV species and types in Cameroon.
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Affiliation(s)
- Sebastien Kenmoe
- Virology Department, "Centre Pasteur du Cameroun", P.O.Box 1274, Yaounde, Cameroon.,Département de Biochimie, Université de Yaoundé 1, BP 812, Yaounde, Cameroon.,Normandie Université, 14032, Caen, France.,UNICAEN, UNIROUEN, GRAM, 14000, Caen, France.,University Hospital of Caen, Department of Virology, 14000, Caen, France
| | - Marie-Astrid Vernet
- Virology Department, "Centre Pasteur du Cameroun", P.O.Box 1274, Yaounde, Cameroon
| | | | | | - Astrid Vabret
- Normandie Université, 14032, Caen, France.,UNICAEN, UNIROUEN, GRAM, 14000, Caen, France.,University Hospital of Caen, Department of Virology, 14000, Caen, France
| | - Richard Njouom
- Virology Department, "Centre Pasteur du Cameroun", P.O.Box 1274, Yaounde, Cameroon.
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Wong SSY, Yip CCY, Sridhar S, Leung KH, Cheng AKW, Fung AMY, Lam HY, Chan KH, Chan JFW, Cheng VCC, Tang BSF, Yuen KY. Comparative evaluation of a laboratory-developed real-time PCR assay and RealStar® Adenovirus PCR Kit for quantitative detection of human adenovirus. Virol J 2018; 15:149. [PMID: 30261891 PMCID: PMC6161464 DOI: 10.1186/s12985-018-1059-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 07/19/2018] [Accepted: 09/19/2018] [Indexed: 12/17/2022] Open
Abstract
Background Human adenoviruses are common causes of community-acquired respiratory tract and enteric infections. Severe disseminated infections with high mortality rates may be seen in immunocompromised individuals. An accurate and cost-effective quantitative assay is essential not only for laboratory diagnosis of adenoviral infections, but also for monitoring of response to antiviral treatment. The diagnostic performance of an in-house quantitative polymerase chain reaction assay was compared to a commercial system. Methods The analytical sensitivity, specificity, linearity, precision and accuracy of an in-house adenovirus quantitative polymerase chain reaction assay were evaluated against the RealStar® Adenovirus PCR Kit (Altona Diagnostics GmbH, Hamburg, Germany), using 122 clinical specimens and 18 proficiency testing samples. Results Linear regression analysis of the quantitative results by the in-house assay showed the dynamic range from 2.60 to 9 log10 (plasma) and 2.94 to 9 log10 (viral transport medium) copies/mL, with the coefficient of determination (R2) of 0.996 and 0.998, respectively. A dilution series demonstrated the limits of detection and lower limits of quantification for plasma were 2.06 log10 and 2.60 log10 copies/mL and those for viral transport medium were 2.31 log10 and 2.94 log10 copies/mL respectively. The precision of the in-house assay was highly reproducible among runs with coefficients of variance ranging from 0.07 to 3.21% for plasma and 0.17% to 2.11% for viral transport medium. A comparison of 52 matched samples showed an excellent correlation between the quantitative viral loads measured by the in-house assay and the RealStar® Adenovirus PCR Kit (R2 = 0.984), with an average bias of − 0.16 log10 copies/mL. Conclusions The in-house adenovirus assay is a sensitive and reliable assay with lower cost for the detection and quantification of adenoviral DNA when compared to the RealStar® Adenovirus PCR Kit. Electronic supplementary material The online version of this article (10.1186/s12985-018-1059-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Samson S Y Wong
- Department of Microbiology, The University of Hong Kong, Hong Kong, China.,State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China
| | - Cyril C Y Yip
- Department of Microbiology, Queen Mary Hospital, Hong Kong, China
| | - Siddharth Sridhar
- Department of Microbiology, The University of Hong Kong, Hong Kong, China.,State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China
| | - Kit-Hang Leung
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Andrew K W Cheng
- Department of Microbiology, Queen Mary Hospital, Hong Kong, China
| | - Ami M Y Fung
- Department of Microbiology, Queen Mary Hospital, Hong Kong, China
| | - Ho-Yin Lam
- Department of Pathology, Hong Kong Sanatorium and Hospital, Hong Kong, China
| | - Kwok-Hung Chan
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Jasper F W Chan
- Department of Microbiology, The University of Hong Kong, Hong Kong, China.,State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China
| | | | - Bone S F Tang
- Department of Pathology, Hong Kong Sanatorium and Hospital, Hong Kong, China
| | - Kwok-Yung Yuen
- Department of Microbiology, The University of Hong Kong, Hong Kong, China. .,State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China. .,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China. .,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China. .,Department of Microbiology, Queen Mary Hospital, Hong Kong, China. .,The Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The University of Hong Kong, Hong Kong, China.
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Ren J, Dsouza NR, Deng H, Lee H, Bouvier M, Johnson ME. Discovery of small molecule inhibitors of adenovirus by disrupting E3-19K/HLA-A2 interactions. Bioorg Med Chem Lett 2018; 28:2837-2841. [PMID: 30077568 DOI: 10.1016/j.bmcl.2018.07.036] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/24/2018] [Accepted: 07/26/2018] [Indexed: 11/30/2022]
Abstract
The binding of the adenovirus (Ad) protein E3-19K with the human leukocyte antigen (HLA) plays an important role in Ad infections, which is the causative agent of a series of gastrointestinal, respiratory and ocular diseases. The objective of this research is to evaluate the essential interactions between E3-19K and HLA-A2 using the X-ray crystal structure of the E3-19K/HLA-A2 complex, and to identify small molecules that could potentially disrupt their binding. Computational methods, including molecular dynamic simulations, MM/GBSA calculations, and computational solvent mapping, were implemented to determine potential binding site(s) for small molecules. The previous experimentally determined hot spot residues, Q54 and E177 in HLA-A2, were also predicted to be the dominant residues for binding to E3-19K by our theoretical calculations. Several other residues were also found to play pivotal roles for the binding of E3-19K with HLA-A2. Residues adjacent to E177, including Q54 and several other residues theoretically predicted to be crucial in HLA-A2 were selected as a potential binding pocket to perform virtual screening with 1200 compounds from the Prestwick library. Seven hits were validated by surface plasmon resonance (SPR) as binders to HLA-A2 as a first step in identifying molecules that can perturb its association with the Ad E3-19K protein.
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Affiliation(s)
- Jinhong Ren
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA
| | - Nikita R Dsouza
- Department of Bioengineering, University of Illinois at Chicago, 835 S Wolcott Ave, Chicago, IL 60612, USA
| | - Hui Deng
- Department of Microbiology and Immunology, University of Illinois at Chicago, 835 S. Wolcott Ave, Chicago, IL 60612, USA
| | - Hyun Lee
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA; Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA; Biophysics Core, Research Resources Center, University of Illinois at Chicago, 1100 S. Ashland Ave, Chicago, IL 60607, USA
| | - Marlene Bouvier
- Department of Microbiology and Immunology, University of Illinois at Chicago, 835 S. Wolcott Ave, Chicago, IL 60612, USA
| | - Michael E Johnson
- Center for Biomolecular Sciences, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA; Department of Bioengineering, University of Illinois at Chicago, 835 S Wolcott Ave, Chicago, IL 60612, USA; Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 900 S. Ashland Ave, Chicago, IL 60607, USA.
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Nakamura H, Fujisawa T, Suga S, Taniguchi K, Nagao M, Ito M, Ochiai H, Konagaya M, Hanaoka N, Fujimoto T. Species differences in circulation and inflammatory responses in children with common respiratory adenovirus infections. J Med Virol 2018; 90:873-880. [PMID: 29350418 PMCID: PMC5887893 DOI: 10.1002/jmv.25032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 10/23/2017] [Accepted: 01/02/2018] [Indexed: 01/01/2023]
Abstract
Human adenoviruses (HAdVs) cause severe inflammatory respiratory infections, but previous epidemiological studies lacked analysis of the characteristics of the inflammation. Consecutive patients <13 years old with acute febrile illness during a 2‐year period were tested. HAdV strains were isolated from nasopharyngeal swabs, and molecular identification was performed by hexon, fiber, and species‐specific PCR methods. Blood inflammatory markers, including the white blood cell (WBC) count, CRP, and 29 cytokines, were measured. A total of 187 patients were enrolled, and HAdV types were identified from 175 patients (93.5%). Species C (types 2, 1, 5, and 6, in order of frequency) was most common at 37.1%, followed by B (type 3) at 30.9% and E (type 4) at 26.9%. Species C was detected predominantly in 1‐year‐old, whereas B and E were in older ages. Species C and B had seasonal circulation patterns, but E was found in only one season during the 2‐year study period. The WBC count was highest in patients with species C. Eleven of the 29 tested serum cytokines were detected. Seven kinds, including G‐CSF, IL‐6, and TNF‐α, were elevated in species C infections, whereas IL‐10 was lowest in species C. Species differences in inflammatory responses, especially regarding serum cytokines were described in common pediatric HAdV infections. Species C causes the strongest inflammatory responses in young children.
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Affiliation(s)
- Haruna Nakamura
- Department of Pediatrics, Mie National Hospital, Tsu, Mie, Japan
| | - Takao Fujisawa
- Department of Pediatrics, Mie National Hospital, Tsu, Mie, Japan
| | - Shigeru Suga
- Department of Pediatrics, Mie National Hospital, Tsu, Mie, Japan
| | - Kiyosu Taniguchi
- Department of Pediatrics, Mie National Hospital, Tsu, Mie, Japan
| | - Mizuho Nagao
- Department of Pediatrics, Mie National Hospital, Tsu, Mie, Japan
| | - Masahiro Ito
- Biwako Gakuen Yasu Medical and Welfare Center, Yasu, Shiga, Japan
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Rayne F, Wittkop L, Bader C, Kassab S, Tumiotto C, Berciaud S, Wodrich H, Lafon ME. Rapid Adenovirus typing method for species identification. J Virol Methods 2017; 249:156-160. [PMID: 28918074 DOI: 10.1016/j.jviromet.2017.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 07/28/2017] [Accepted: 09/12/2017] [Indexed: 10/18/2022]
Abstract
Adenoviruses are characterized by a large variability, reflected by their classification in species A to G. Certain species, eg A and C, could be associated with increased clinical severity, both in immunocompetent and immunocompromised hosts suggesting that in some instances species identification provides clinically relevant information. Here we designed a novel "pVI rapid typing method" to obtain quick, simple and cost effective species assignment for Adenoviruses, thanks to combined fusion temperature (Tm) and amplicon size analysis. Rapid typing results were compared to Sanger sequencing in the hexon gene for 140 Adenovirus-positive clinical samples included in the Typadeno study. Species A and C could be identified with a 100% positive predictive value, thus confirming the value of this simple typing method.
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Affiliation(s)
- Fabienne Rayne
- Univ Bordeaux, CNRS, UMR 5234 Fundamental Microbiology and Pathogenicity, F-33000, Bordeaux, France
| | - Linda Wittkop
- Univ Bordeaux, ISPED Inserm, Bordeaux Population Health Research Center, team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Pôle de santé publique, Service d'information médicale, F-33000 Bordeaux, France
| | - Clément Bader
- CHU de Bordeaux, Pôle de santé publique, Service d'information médicale, F-33000 Bordeaux, France
| | - Somar Kassab
- Univ Bordeaux, CNRS, UMR 5234 Fundamental Microbiology and Pathogenicity, F-33000, Bordeaux, France
| | - Camille Tumiotto
- Univ Bordeaux, CNRS, UMR 5234 Fundamental Microbiology and Pathogenicity, F-33000, Bordeaux, France; CHU de Bordeaux, Pôle de Biologie et Pathologie, Laboratoire de Virologie, F-33000 Bordeaux, France
| | - Sylvie Berciaud
- CHU de Bordeaux, Pôle de Pédiatrie, F-33000 Bordeaux, France
| | - Harald Wodrich
- Univ Bordeaux, CNRS, UMR 5234 Fundamental Microbiology and Pathogenicity, F-33000, Bordeaux, France
| | - Marie-Edith Lafon
- Univ Bordeaux, CNRS, UMR 5234 Fundamental Microbiology and Pathogenicity, F-33000, Bordeaux, France; CHU de Bordeaux, Pôle de Biologie et Pathologie, Laboratoire de Virologie, F-33000 Bordeaux, France.
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Niang MN, Diop NS, Fall A, Kiori DE, Sarr FD, Sy S, Goudiaby D, Barry MA, Fall M, Dia N. Respiratory viruses in patients with influenza-like illness in Senegal: Focus on human respiratory adenoviruses. PLoS One 2017; 12:e0174287. [PMID: 28328944 PMCID: PMC5362214 DOI: 10.1371/journal.pone.0174287] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/06/2017] [Indexed: 12/20/2022] Open
Abstract
Background Human adenoviruses (HAdVs) are highly contagious pathogens that are associated with a wide spectrum of human illnesses involving the respiratory tract. In the present study, we investigate the epidemiologic and viral molecular features of HAdVs circulating in Senegal after 4 consecutive years of sentinel surveillance of influenza-like Illness cases. Methodology and results From January 2012 to December 2015 swabs were collected from consenting ILI outpatients. Adenoviral detection is performed by rRT-PCR with the Anyplex™ II RV16 Detection kit (Seegene) and molecular characterization was performed using a partial hexon gene sequence. 6381 samples were collected. More than half of patients (51.7%; 3297/6381) were children of ≤ 5 years. 1967 (30.8%) were positive for HAdV with 1561 (79.4%) found in co-infection with at least one another respiratory virus. The most common co-detections were with influenza viruses (53.1%; 1045/1967), rhinoviruses (30%; 591/1967), enteroviruses (18.5%; 364/1967) and RSV (13.5%; 266/1967). Children under 5 were the most infected group (62.2%; 1224/1967; p <0.05). We noted that HAdV was detected throughout the year at a high level with detection peaks of different amplitudes without any clear seasonality. Phylogenetic analysis revealed species HAdV-C in majority, species HAdV-B and one HAdV- 4 genome type. The 9 HAdV-B species like strains from Senegal grouped with genome types HAdV-7, HAdV-55 and HAdV-11 as shown by a phylogenetic branch with a high bootstrap value of (88%). Conclusion In conclusion, the results of the present study suggest strong year-round HAdV activity in Senegal, especially in children up to 5 years of age. Molecular studies revealed that the dominant species in circulation in patients with ILI appears to be HAdV-C and HAdV-B species. The circulation of though HAdV-7 and HAdV-55 genome types is of note as these serotypes are recognized causes of more severe and even fatal acute respiratory infections.
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Affiliation(s)
| | - Ndeye Sokhna Diop
- Institut Pasteur de Dakar, Unité de Virologie Médicale, Dakar, Sénégal
| | - Amary Fall
- Institut Pasteur de Dakar, Unité de Virologie Médicale, Dakar, Sénégal
| | - Davy E. Kiori
- Institut Pasteur de Dakar, Unité de Virologie Médicale, Dakar, Sénégal
| | - Fatoumata Diene Sarr
- Institut Pasteur de Dakar, Unité d’Epidémiologie des maladies infectieuses, Dakar, Sénégal
| | - Sara Sy
- Institut Pasteur de Dakar, Unité de Virologie Médicale, Dakar, Sénégal
| | - Déborah Goudiaby
- Institut Pasteur de Dakar, Unité de Virologie Médicale, Dakar, Sénégal
| | - Mamadou Aliou Barry
- Institut Pasteur de Dakar, Unité d’Epidémiologie des maladies infectieuses, Dakar, Sénégal
| | - Malick Fall
- Département de Biologie Animale Faculté des Sciences et Techniques Université Cheikh Anta DIOP de Dakar, Dakar, Senegal
| | - Ndongo Dia
- Institut Pasteur de Dakar, Unité de Virologie Médicale, Dakar, Sénégal
- * E-mail:
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Yu Z, Zeng Z, Zhang J, Pan Y, Chen M, Guo Y, Yu N, Chodosh J, Fu N, Che X, Zhang Q. Fatal Community-acquired Pneumonia in Children Caused by Re-emergent Human Adenovirus 7d Associated with Higher Severity of Illness and Fatality Rate. Sci Rep 2016; 6:37216. [PMID: 27848998 DOI: 10.1038/srep37216] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 10/05/2016] [Indexed: 12/19/2022] Open
Abstract
Human adenoviruses (HAdVs) are highly contagious pathogens causing acute respiratory disease (ARD), such as community-acquired pneumonia. HAdV-7d, a re-emergent genomic variant, has been recently reported in Asia and the United States after a several-decade absence. However, whether HAdV-7d is associated with higher severity than other types is currently unclear. In this study, the clinical and epidemiological investigation showed that fever, cough, and sore throat were the three most common respiratory symptoms of HAdV infections. HAdV-7 caused longer duration of fever, higher morbidity of tachypnea/dyspnea, pleural effusion, diarrhea, hepatosplenomegaly, consciousness alteration, as well as higher rates of pneumonia, mechanical ventilation and higher fatality rate (28.6%) than other types, particularly HAdV-3 and HAdV-2. The genomes of seven HAdV-7d isolates from mild, severe, and fatal cases were sequenced and highly similar with each other. Surprisingly, two isolates (2011, 2012) had 100% identical genomes with an earlier strain from a fatal ARD outbreak in China (2009), which elucidates the virus origin and confirms the unexpected HAdV genomic conservation and stability. Phylogenetic analysis indicated that L1 52/55-kDa DNA packaging protein may be associated with the higher severity of illness and fatality rate of HAdV-7. Clinicians need to be aware of HAdVs in children with ARD.
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Chen Y, Liu F, Wang C, Zhao M, Deng L, Zhong J, Zhang Y, Ye J, Jing S, Cheng Z, Guan Y, Ma Y, Sun Y, Zhu B, Zhang Q. Molecular Identification and Epidemiological Features of Human Adenoviruses Associated with Acute Respiratory Infections in Hospitalized Children in Southern China, 2012-2013. PLoS One 2016; 11:e0155412. [PMID: 27171486 DOI: 10.1371/journal.pone.0155412] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 04/28/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Acute respiratory infections (ARI) are the major worldwide health problem associated with high morbidity and mortality rates. Human adenovirus (HAdV) is one of the most common pathogens associated with viral ARI, and thus calls for specific diagnosis and better understanding of the epidemiology and clinical characteristics. METHODS Total 4,130 children with ARI requiring hospitalization from 2012 to 2013 were retrospectively studied. Throat swab specimens were collected from each patient. Fluorescence Quantitative PCR was performed to detect adenovirus as well as other common ARI-related pathogens. The seven HAdV hypervariable regions (HVRs) of the hexon gene from fifty-seven HAdVs-positive samples collected in the seasonal peaks were sequenced. Phylogenetic analysis of HVRs was also conducted to confirm the molecular types and genetic variation. In addition, epidemiological features and co-infection with other human respiratory pathogens were investigated and analyzed. RESULTS Of 4,130 hospitalized pediatric patients tested, the positive rates of respiratory syncytial virus (RSV), Mycoplasma pneumoniae (MP), and HAdV were 13.7%, 13.2%, and 12.0%, respectively. The HAdV positive patients accounted for 7.9%, 17.2%, 17.5% and 10.7% in age groups <1, 1-3, 3-6 and 6-14 years, respectively. Eighty-four HAdV positive children were co-infected with other respiratory pathogens (84/495, 17.0%). The most common co-infection pathogens with HAdV were MP (57.1%) and Human Bocavirus (HBoV) (16.7%). The majority of HAdV infected patients were totally recovered (96.9%, 480/495); However, four (0.8%) patients, who were previously healthy and at the age of 2 years or younger died of pneumonia. Seasonal peaks of HAdV infection occurred in the summer season of 2012 and 2013; the predominant HAdV type was HAdV-3 (70%), followed by HAdV-7 (28%). These epidemiological features were different from those in Northern China. The HAdV-55 was identified and reported for the first time in Guangzhou metropolitan area. Phylogenetic analysis indicated that all the HVR sequences of the hexon gene of HAdV-3 and -7 strains have high similarity within their individual types, and these strains were also similar to those circulating in China currently, indicating the conservation of hexon genes of both HAdV-3 and HAdV-7. CONCLUSIONS Knowledge of the epidemiological features and molecular types of HAdV, a major pathogen of pediatric ARI, as well as other co-infected respiratory pathogens circulating in Guangzhou, southern China, is vital to predict and prevent future disease outbreaks in children. This study will certainly facilitate HAdV vaccine development and treatment of HAdV infections in children.
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Assadian F, Sandström K, Bondeson K, Laurell G, Lidian A, Svensson C, Akusjärvi G, Bergqvist A, Punga T. Distribution and Molecular Characterization of Human Adenovirus and Epstein-Barr Virus Infections in Tonsillar Lymphocytes Isolated from Patients Diagnosed with Tonsillar Diseases. PLoS One 2016; 11:e0154814. [PMID: 27136093 DOI: 10.1371/journal.pone.0154814] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 04/19/2016] [Indexed: 11/19/2022] Open
Abstract
Surgically removed palatine tonsils provide a conveniently accessible source of T and B lymphocytes to study the interplay between foreign pathogens and the host immune system. In this study we have characterised the distribution of human adenovirus (HAdV), Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) in purified tonsillar T and B cell-enriched fractions isolated from three patient age groups diagnosed with tonsillar hypertrophy and chronic/recurrent tonsillitis. HAdV DNA was detected in 93 out of 111 patients (84%), while EBV DNA was detected in 58 patients (52%). The most abundant adenovirus type was HAdV-5 (68%). None of the patients were positive for HCMV. Furthermore, 43 patients (39%) showed a co-infection of HAdV and EBV. The majority of young patients diagnosed with tonsillar hypertrophy were positive for HAdV, whereas all adult patients diagnosed with chronic/recurrent tonsillitis were positive for either HAdV or EBV. Most of the tonsils from patients diagnosed with either tonsillar hypertrophy or chronic/recurrent tonsillitis showed a higher HAdV DNA copy number in T compared to B cell-enriched fraction. Interestingly, in the majority of the tonsils from patients with chronic/recurrent tonsillitis HAdV DNA was detected in T cells only, whereas hypertrophic tonsils demonstrated HAdV DNA in both T and B cell-enriched fractions. In contrast, the majority of EBV positive tonsils revealed a preference for EBV DNA accumulation in the B cell-enriched fraction compared to T cell fraction irrespective of the patients' age.
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Wang Y, Li Y, Lu R, Zhao Y, Xie Z, Shen J, Tan W. Phylogenetic evidence for intratypic recombinant events in a novel human adenovirus C that causes severe acute respiratory infection in children. Sci Rep 2016; 6:23014. [PMID: 26960434 PMCID: PMC4785336 DOI: 10.1038/srep23014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 02/26/2016] [Indexed: 11/29/2022] Open
Abstract
Human adenoviruses (HAdVs) are prevalent in hospitalized children with severe acute respiratory infection (SARI). Here, we report a unique recombinant HAdV strain (CBJ113) isolated from a HAdV-positive child with SARI. The whole-genome sequence was determined using Sanger sequencing and high-throughput sequencing. A phylogenetic analysis of the complete genome indicated that the CBJ113 strain shares a common origin with HAdV-C2, HAdV-C6, HAdV-C1, HAdV-C5, and HAdV-C57 and formed a novel subclade on the same branch as other HAdV-C subtypes. BootScan and single nucleotide polymorphism analyses showed that the CBJ113 genome has an intra-subtype recombinant structure and comprises gene regions mainly originating from two circulating viral strains: HAdV-1 and HAdV-2. The parental penton base, pVI, and DBP genes of the recombinant strain clustered with the HAdV-1 prototype strain, and the E1B, hexon, fiber, and 100 K genes of the recombinant clustered within the HAdV-2 subtype, meanwhile the E4orf1 and DNA polymerase genes of the recombinant shared the greatest similarity with those of HAdV-5 and HAdV-6, respectively. All of these findings provide insight into our understanding of the dynamics of the complexity of the HAdV-C epidemic. More extensive studies should address the pathogenicity and clinical characteristics of the novel recombinant.
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Affiliation(s)
- Yanqun Wang
- Key Laboratory of Medical Virology, Ministry of Health; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Yamin Li
- Key Laboratory of Medical Virology, Ministry of Health; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Roujian Lu
- Key Laboratory of Medical Virology, Ministry of Health; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Yanjie Zhao
- Key Laboratory of Medical Virology, Ministry of Health; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Zhengde Xie
- Key Laboratory of Major Diseases in Children and National Key Discipline of Pediatrics Capital Medical University, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Jun Shen
- Children Hospital of Fudan University, Shanghai 200032, China
| | - Wenjie Tan
- Key Laboratory of Medical Virology, Ministry of Health; National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
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