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Liu J, Gao L, Zhou N, Jiang Z, Che S, Deng Y, Zang N, Ren L, Xie X, Xie J, Liu E. p53 suppresses the inflammatory response following respiratory syncytial virus infection by inhibiting TLR2. Virology 2024; 593:110018. [PMID: 38368639 DOI: 10.1016/j.virol.2024.110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/20/2024]
Abstract
-Respiratory syncytial virus (RSV) is a pivotal virus leading to acute lower respiratory tract infections in children under 5 years old. This study aimed to explore the correlation between p53 and Toll-like receptors (TLRs) post RSV infection. p53 levels exhibited a substantial decrease in nasopharyngeal aspirates (NPAs) from infants with RSV infection compared to control group. Manipulating p53 expression had no significant impact on RSV replication or interferon signaling pathway. Suppression of p53 expression led to heightened inflammation following RSV infection in A549 cells or airways of BALB/c mice. while stabilizing p53 expression using Nutlin-3a mitigated the inflammatory response in A549 cells. Additionally, Inhibiting p53 expression significantly increased Toll-like receptor 2 (TLR2) expression in RSV-infected epithelial cells and BALB/c mice. Furthermore, the TLR2 inhibitor, C29, effectively reduced inflammation mediated by p53 in A549 cells. Collectively, our results indicate that p53 modulates the inflammatory response after RSV infection through TLR2.
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Affiliation(s)
- Jiao Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Leiqiong Gao
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Na Zhou
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Zhenghong Jiang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Siyi Che
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Luo Ren
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China; Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Jun Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
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Wei J, Zang N, Zhang J, He Y, Huang H, Liu X, Xu X, Ren L, Deng Y, Wu J, Seto D, Zhong W, Zhang Q, Liu E. Genome and proteomic analysis of risk factors for fatal outcome in children with severe community-acquired pneumonia caused by human adenovirus 7. J Med Virol 2023; 95:e29182. [PMID: 37909805 DOI: 10.1002/jmv.29182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/28/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023]
Abstract
INTRODUCTION Human adenovirus 7 (HAdV-7) is an important viral pathogen of severe pneumonia in children and a serious threat to health. METHODS A cohort of 45 pediatric patients diagnosed with HAdV-7-associated severe pneumonia and admitted to the Pediatric Intensive Care Unit at the Children's Hospital of Chongqing Medical University from May 2018 to January 2020 were included. Risk factors of death were analyzed by the Cox proportional risk mode with Clinical data, serum, and nasopharyngeal aspirate adenovirus load, Genome analysis, Olink proteomics, and cytokine profile between dead and surviving patients were also analyzed. RESULTS A total of 45 children with a median age of 12.0 months (interquartile range [IQR]: 6.5, 22.0) were included (female 14), including 14 (31.1%) who died. High serum viral load was an independent risk factor for mortality (hazard ratio [HR] = 2.16, 95% confidence interval [CI], 1.04-4.49, p = 0.039). BTB and CNC homology 1 (BACH1), interleukin-5 (IL-5), and IL-9 levels were significantly correlated with serum viral load (p = 0.0400, 0.0499, and 0.0290; r = 0.4663, 0.3339, and -0.3700, respectively), with significant differences between the dead and survival groups (p = 0.021, 0.001, and 0.021). CONCLUSIONS Severe cytokine storm-associated high serum viral load after HAdV-7 infection may be the main mechanism responsible for poor prognosis in children.
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Affiliation(s)
- Jianhua Wei
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Zhang
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Ministry of Education, Institute of Medical Microbiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Yu He
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Haixia Huang
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
- Department of Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiangyu Liu
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ximing Xu
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Luo Ren
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jianguo Wu
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Ministry of Education, Institute of Medical Microbiology, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Donald Seto
- Bioinformatics and Computational Biology Program, School of Systems Biology, George Mason University, Manassas, Virginia, USA
| | - Wen Zhong
- Science for Life Laboratory, Department of Biomedical and Clinical Sciences (BKV), Linköping University, Linköping, Sweden
- Department of Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Qiwei Zhang
- Key Laboratory of Viral Pathogenesis & Infection Prevention and Control, Ministry of Education, Institute of Medical Microbiology, College of Life Science and Technology, Jinan University, Guangzhou, China
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
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Li T, Fang H, Liu X, Deng Y, Zang N, Xie J, Xie X, Luo Z, Luo J, Liu Y, Fu Z, Ren L, Liu E. Defining RSV epidemic season in southwest China and assessing the relationship between birth month and RSV infection: A 10-year retrospective study from June 2009 to May 2019. J Med Virol 2023; 95:e28928. [PMID: 37455559 DOI: 10.1002/jmv.28928] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 06/06/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023]
Abstract
Respiratory syncytial virus (RSV) is one of the most common causes of lower respiratory tract infections (LRTI). However, only limited information is available regarding its seasonality and its relationship with birth month. A retrospective hospital-based study was carried out from June 2009 to May 2019 in Chongqing, southwest of China. LRTI cases under 5 years were enrolled in this study and PCR was used to detect 8 respiratory viruses. RSV seasonality was determined using "average annual percentage" (AAP) and "percent positivity" method. A total of 6991 cases were enrolled in this study, with an RSV positivity of 34.5%. From June 2009 to May 2019, we analyzed RSV epidemic season during 10 RSV epidemic years in Chongqing using two methods. The result of AAP method was similar to that of percent positivity method with a 30% threshold, which showed an epidemic season of roughly October to March in the subsequent year, with a small peak in June. On average, the RSV epidemic season in RSV-A dominant years typically started earlier (week 42 for RSV-A vs. week 46 for RSV-B), ended earlier (week 12 for RSV-A vs. week 14 for RSV-B), lasted longer (24 weeks for RSV-A vs. 22 weeks for RSV-B), and reached its peak earlier (week 2 for RSV-A vs. week 3 for RSV-B) than in RSV-B dominant years. The proportion of severe LRTI was higher in cases of single infection with RSV-A compared to those of single infection with RSV-B (26.3% vs. 22.3%, p = 0.024). Among infants under 1 year, those born in May and August through December were more likely to be infected with RSV. Infants born 1-2 months before the epidemic season were relatively more susceptible to RSV infection. In Chongqing, the RSV epidemic was seasonal and usually lasted from October to March of next year with a small peak in summer. Infants born 1-2 months before the epidemic season were relatively more susceptible to RSV infection and this population should be targeted while developing RSV immunization strategies.
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Affiliation(s)
- Taoyu Li
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Heping Fang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiangyu Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Jun Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Zhengxiu Luo
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Jian Luo
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Yulin Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Luo Ren
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
- Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
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Yang Z, Wei J, He Y, Ren L, Chen S, Deng Y, Zang N, Liu E. Identification of functional pathways and potential genes associated with interferon signaling during human adenovirus type 7 infection by weighted gene coexpression network analysis. Arch Virol 2023; 168:130. [PMID: 37017816 PMCID: PMC10076410 DOI: 10.1007/s00705-023-05707-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 12/15/2022] [Indexed: 04/06/2023]
Abstract
Human adenovirus type 7 (HAdV-7) can cause severe pneumonia and complications in children. However, the mechanism of pathogenesis and the genes involved remain largely unknown. We collected HAdV-7-infected and mock-infected A549 cells at 24, 48, and 72 hours postinfection (hpi) for RNA sequencing (RNA-Seq) and identified potential genes and functional pathways associated with HAdV-7 infection using weighted gene coexpression network analysis (WGCNA). Based on bioinformatics analysis, 12 coexpression modules were constructed by WGCNA, with the blue, tan, and brown modules significantly positively correlated with adenovirus infection at 24, 48, and 72 hpi, respectively. Functional enrichment analysis indicated that the blue module was mainly enriched in DNA replication and viral processes, the tan module was largely enriched in metabolic pathways and regulation of superoxide radical removal, and the brown module was predominantly enriched in regulation of cell death. qPCR was used to determine transcript abundance of some identified hub genes, and the results were consistent with those from RNA-Seq. Comprehensively analyzing hub genes and differentially expressed genes in the GSE68004 dataset, we identified SOCS3, OASL, ISG15, and IFIT1 as potential candidate genes for use as biomarkers or drug targets in HAdV-7 infection. We propose a multi-target inhibition of the interferon signaling mechanism to explain the association of HAdV-7 infection with the severity of clinical consequences. This study has allowed us to construct a framework of coexpression gene modules in A549 cells infected with HAdV-7, thus providing a basis for identifying potential genes and pathways involved in adenovirus infection and for investigating the pathogenesis of adenovirus-associated diseases.
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Affiliation(s)
- Zhongying Yang
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Jianhua Wei
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Yu He
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Luo Ren
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Shiyi Chen
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Yu Deng
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Na Zang
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
| | - Enmei Liu
- Department of Respiratory Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders,Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
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Lin D, Zang N, Zhu K, Li G, Chen X. Energy acquisition strategy for reproduction in a semelparous squid. Front Zool 2022; 19:28. [DOI: 10.1186/s12983-022-00473-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 11/02/2022] [Indexed: 11/17/2022] Open
Abstract
Abstract
Background
Energy demand for reproduction leads to a wide diversity of foraging and life-history strategy among wild animals, linking to a common objective to maximize reproductive success. Semelparous squid species in particular can use up to 50% of the total energy intake for reproduction. However, the energy acquisition strategy for reproduction is still a controversial issue regarding whether the squid shift in diet ontogenetically. Here we used Argentinean shortfin squid (Illex argentinus) as a case study to investigate the strategy of energy acquisition for reproduction, by analyzing energy density of the squid’s reproductive tissues including ovary, nidamental glands and oviduct eggs, and stable isotopes and fatty acids of the squid’s ovary.
Results
The reproductive energy (the sum of the energy accumulated in ovary, nidamental glands and oviduct eggs) increased significantly with maturation. The ovary nitrogen stable isotopes (δ15N) showed a significant increase with maturation, but the increase by maturity stage was not equal to the typical enrichment of about 3‰ per trophic level. Isotopic niche width showed an increasing trend with maturation, and isotopic niche space exhibited greater overlap at advanced maturity stages. The relative amounts of 16:0, 20:5n3 and 20:4n6 in the ovary, tracing for carnivores and top predators, increased after the onset of maturation. The overall fatty acid profiles of the ovary showed significant differences among maturity stages, but obvious overlaps were found for mature squids. Mixed-effects model results revealed that reproductive energy was positively correlated with δ15N values. The reproductive energy was also positively related to the relative amounts of 18:0 and 20:4n6, respectively tracing for herbivores and top predators.
Conclusions
Our results validate that the squid shifts to feed on higher trophic prey for reproduction as energy demand increases once maturation commences. However, the squid does not shift feeding habits at a trophic level but instead broadens prey spectrum, coupled with increasing intake of higher trophic prey items, to meet the energy demand for reproduction. Such energy acquisition strategy may be selected by the squid to maximize reproductive success by balancing energy intake and expenditure from foraging, warranting future studies that aim to clarify such strategy for reproduction among semelparous species.
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Yang Z, Fu Y, Ren L, Chen S, Liu E, Zang N. [Silencing CD46 and DSG2 in host A549 cells inhibits entry of human adenovirus type 3 and type 7 and reduces interleukin-8 release]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1344-1350. [PMID: 36210707 DOI: 10.12122/j.issn.1673-4254.2022.09.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of silencing CD46 and desmoglein 2 (DSG2) in host A549 cells on the entry of human adenovirus type 3 (HAdV-3) and type 7 (HAdV-7) and host cell secretion of inflammatory cytokines. METHODS RNA interference technique was use to silence the expression of CD46 or DSG2 in human epithelial alveolar A549 cells as the host cells of HAdV-3 or HAdV-7. The binding of the viruses with CD46 and DSG2 were observed with immunofluorescence staining at 0.5 and 1 h after viral infection. The viral load in the host cells was determined with qRT-PCR, and IL-8 secretion level was measured using ELISA. RESULTS In infected A549 cells, immunofluorescent staining revealed colocalization of HAdV-3 and HAdV-37 with their receptors CD46 and DSG2 at 0.5 h and 2 h after infection, and the copy number of the viruses increased progressively after the infection in a time-dependent manner. In A549 cells with CD46 silencing, the virus titers were significantly lower at 2, 6, 12 and 24 h postinfection in comparison with the cells without gene silencing; the virus titers were also significantly decreased in the cells with DSG2 silencing. The secretion level of IL-8 increased significantly in A549 cells without siRNA transfection following infection with HAdV-3 and HAdV-7 (P < 0.0001), but decreased significantly in cells with CD46 and DSG2 silencing (P < 0.0001). CONCLUSION HAdV-3 and HAdV-7 enter host cells by binding to their receptors CD46 and DSG2, and virus titer and cytokines release increase with infection time. Silencing CD46 and DSG2 can inhibit virus entry and cytokine IL-8 production in host cells.
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Affiliation(s)
- Z Yang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - Y Fu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - L Ren
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - S Chen
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - E Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - N Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
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7
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He Y, Zang N, Liu EM. Vasoactive intestinal peptide: a potential target for antiviral therapy. Sheng Li Xue Bao 2022; 74:419-433. [PMID: 35770640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Viral infection is clinically common and some viral diseases, such as the ongoing global outbreak of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), have high morbidity and mortality. However, most viral infections are currently lacking in specific therapeutic agents and effective prophylactic vaccines, due to inadequate response, increased rate of drug resistance and severe adverse side effects. Therefore, it is urgent to find new specific therapeutic targets for antiviral defense among which "peptide-based therapeutics" is an emerging field. Peptides may be promising antiviral drugs because of their high efficacy and low toxic side effects. Vasoactive intestinal peptide (VIP) is a prospective antiviral peptide. Since its successful isolation in 1970, VIP has been reported to be involved in infections of SARS-CoV-2, human immune deficiency virus (HIV), vesicular stomatitis virus (VSV), respiratory syncytial virus (RSV), Zika virus (ZIKV) and cytomegalovirus (CMV). Additionally, given that viral attacks sometimes cause severe complications due to overaction of inflammatory and immune responses, the potent anti-inflammatory and immunoregulator properties of VIP facilitate it to be a powerful and promising candidate. This review summarizes the role and mechanisms of VIP in all reported viral infections and suggests its clinical potential as an antiviral therapeutic target.
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Affiliation(s)
- Yu He
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - En-Mei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China.
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8
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Yang ZY, Zang N, Liu EM. [Neuro-immune interactions in respiratory diseases]. Sheng Li Xue Bao 2022; 74:434-442. [PMID: 35770641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The nervous system and the immune system are relatively independent but interactional, and neuro-immune regulation is very important for the respiratory system to resist external harmful stimuli and to maintain homeostasis. Neuro-immune interaction is involved in the occurrence and development of respiratory diseases, and is essential for monitoring and modulating inflammation and tissue repair. This article summaries the neuro-immune regulation of respiratory system and discusses its role in respiratory diseases, aiming to provide a theoretical basis for further understanding the crosstalk between the nervous and immune systems, to explore the underlying mechanism in respiratory diseases, and to provide new thoughts for the prevention and treatment of respiratory diseases.
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Affiliation(s)
- Zhong-Ying Yang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - En-Mei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China.
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9
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He Y, Wang Z, Wei J, Yang Z, Ren L, Deng Y, Chen S, Zang N, Liu E. Exploring Key Genes and Mechanisms in Respiratory Syncytial Virus-Infected BALB/c Mice via Multi-Organ Expression Profiles. Front Cell Infect Microbiol 2022; 12:858305. [PMID: 35586251 PMCID: PMC9109604 DOI: 10.3389/fcimb.2022.858305] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Respiratory syncytial virus (RSV) a leading cause of pediatric and adult morbidity and mortality worldwide. It can cause complications in multiple organs, thus increasing hospital stays and costs. However, RSV-based studies have primarily focused on effects in the lungs and blood, thereby potentially neglecting critical genes and pathways. Hence, studying RSV infection via a novel multi-organ approach is important. In this study, lung, intestine, brain, and spleen tissues from six BALB/c mice (6–8 weeks old; three in control group and three in RSV-infected group) were subjected to RNA sequencing. Differentially expressed genes (DEGs) in each organ were obtained and functional enrichment analysis was performed. We first used CIBERSORT to evaluate the immune-infiltration landscape. Subsequently, common DEGs (co-DEGs) among the four organs were analyzed to identify key genes and pathways. After quantitative reverse transcription-polymerase chain reaction, western blotting, and external validation analysis of key hub genes, their correlation with immune cells and potential functions were explored. We found that the host response to RSV infection varied among the four organs regarding gene expression profiles and immune cell infiltration. Analysis of the 16 co-DEGs indicated enrichment in the platelet and neutrophil degranulation pathways. Importantly, the key gene hemopexin (Hpx) was strongly correlated with the immune cell fraction in the lungs and may participate in the regulation of platelet activation and immune response.
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Affiliation(s)
| | | | | | | | | | | | | | - Na Zang
- *Correspondence: Na Zang, ; Enmei Liu,
| | - Enmei Liu
- *Correspondence: Na Zang, ; Enmei Liu,
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10
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Liao J, Yang Z, He Y, Wei J, Ren L, Liu E, Zang N. Respiratory tract infection of fatal severe human bocavirus 1 in a 13-month-old child: A case report and literature review. Front Pediatr 2022; 10:949817. [PMID: 36605757 PMCID: PMC9808049 DOI: 10.3389/fped.2022.949817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Human bocavirus 1 (HBoV1) belongs to the family Parvoviridae and it is acknowledged that HBoV1 is a respiratory pathogen. We report the case of a 13-month-old boy who presented with a cough, shortness of breath, and wheezing, and who eventually died of severe pneumonia and acute respiratory distress syndrome (ARDS). Metagenomics next-generation sequencing (mNGS) showed that HBoV1 was the only detected pathogen. The nasopharyngeal aspirate viral load was 2.08 × 1010 copies/ml and the serum viral load was 2.37 × 105 copies/ml. The child was still oxygen deficient under mechanical ventilation. Chest imaging suggested diffuse lesions in both lungs, an injury caused by ARDS. In this case, the clinical symptoms and signs of the child, the high viral load, viremia, and the detection of mNGS in the tracheal aspirate all supported that HBoV1 could cause severe acute respiratory tract infection in children without other pathogen infections.
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Affiliation(s)
- Jing Liao
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zhongying Yang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yu He
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jianhua Wei
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Luo Ren
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
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11
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Zeng L, Wei J, Tang Y, Liu E, Li Q, Zang N. Clinical Characteristics of Human Adenovirus Plastic Bronchitis in 10 Pediatric Cases: A Retrospective Study of Seven Years. Virol Sin 2021; 36:550-554. [PMID: 34156646 PMCID: PMC8218560 DOI: 10.1007/s12250-021-00394-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 04/25/2021] [Indexed: 12/03/2022] Open
Affiliation(s)
- Lingjian Zeng
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorder, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Jianhua Wei
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorder, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Yuyi Tang
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorder, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Enmei Liu
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorder, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China
| | - Qubei Li
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorder, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
| | - Na Zang
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorder, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, 400014, China.
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12
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Zhou J, Li W, Wen X, Zeng D, Lin J, Chen S, Zang N, Deng Y, Xie X, Ren L, Liu E. Establishing a patient registry study database of dust mite allergic asthma in children: design, methodology and preliminary exploration. Ann Transl Med 2021; 9:993. [PMID: 34277793 PMCID: PMC8267296 DOI: 10.21037/atm-21-2566] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/15/2021] [Indexed: 11/17/2022]
Abstract
Background Asthma is a heterogeneous disease with different phenotypes, endotypes and responses to treatment. Dust mite allergic asthma (DMAA) is the most common type in children. Compared with randomized control trials, a patient registry study (PRS) can reflect the real physical condition and clinical diagnosis more comprehensively. Methods Children who visited the asthma clinic of the Children’s Hospital of Chongqing Medical University between August 2018 and August 2020, and met the inclusion criteria and also agreed to participate, were enrolled in the registry study. Clinical information, laboratory tests and peripheral blood samples were collected after informed consent was given by guardians. Results To date, 208 children have been enrolled in the patient registry database of DMAA. They are mainly male, with >50% having a history of allergic rhinitis, cesarean section, positive family history and passive smoking. Eosinophils and total immunoglobulin E levels were all significantly higher than normal. According to results for the childhood asthma control test (c-ACT) and ratio of forced expiratory volume in 1 s to predicted value after inhaled corticosteroid treatment, the uncontrolled group had higher hemoglobin (Hb) levels than the control group. The group exhibiting abnormal pulmonary function was older, and had longer disease duration, higher fractional exhaled nitric oxide and Hb than the group in which pulmonary function was restored. Conclusions We have preliminarily established a registered study database of children with DMAA. By cluster analysis and using blood samples, we can further study the different pathophysiological mechanisms in order to provide more individualized and targeted treatments for all children.
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Affiliation(s)
- Juan Zhou
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Department of Pediatrics, Guizhou Provincial People's Hospital, Medical College of Guizhou University, Guiyang, China
| | - Weiguo Li
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Xiang Wen
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Dan Zeng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Jilei Lin
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Shiyi Chen
- Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Pediatric Research Institute Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Luo Ren
- Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Pediatric Research Institute Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
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13
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Zang N, Qian XM, Shu CM, Wu D. Parametric sensitivity analysis for thermal runaway in semi-batch reactors: Application to cyclohexanone peroxide reactions. J Loss Prev Process Ind 2021. [DOI: 10.1016/j.jlp.2021.104436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Hu HQ, Qiao JT, Liu FQ, Wang JB, Sha S, He Q, Cui C, Song J, Zang N, Wang LS, Sun Z, Chen L, Hou XG. The STING-IRF3 pathway is involved in lipotoxic injury of pancreatic β cells in type 2 diabetes. Mol Cell Endocrinol 2020; 518:110890. [PMID: 32781250 DOI: 10.1016/j.mce.2020.110890] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 05/26/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
Lipotoxic injury of pancreatic β cells is an important pathological feature in type 2 diabetes mellitus (T2DM). Stimulator of interferon genes (STING) can recognize its own DNA leaked into the cytoplasm from damaged mitochondria or nuclei of the host cell, thus activating its downstream factor interferon regulatory factor 3 (IRF3), causing inflammation and apoptosis. The STING-IRF3 signaling pathway is closely related to glycolipid metabolism, but its relationship with the lipotoxicity of pancreatic β cells has rarely been reported. Here, we investigated the role of the STING-IRF3 signaling pathway in lipotoxicity-induced inflammation, apoptosis, and dysfunction of pancreatic β cells. We examined the activation of STING and IRF3 in islets of db/db mice and identified the role of the STING-IRF3 signaling pathway in palmitic acid (PA)-induced lipotoxic injury of INS-1, a rat insulinoma cell line. STING and phosphorylated IRF3 including downstream interferon-β were upregulated in islets of db/db mice and PA-induced INS-1 cells. Gene silencing of STING or IRF3 ameliorated PA-induced INS-1 cell inflammation and apoptosis, and reversed impaired insulin synthesis. Additionally, PA induced downregulation of the phosphoinositide 3-kinase-AKT signaling pathway, and impaired high glucose-stimulated insulin secretion was reversed after knockdown of STING or IRF3. Our results suggest that activation of the STING-IRF3 pathway triggers inflammation and apoptosis of pancreatic β cells, leading to β-cell damage and dysfunction. Hence, inhibition of this signaling pathway may represent a novel approach for β-cell protection in T2DM.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Cells, Cultured
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Insulin-Secreting Cells/drug effects
- Insulin-Secreting Cells/physiology
- Interferon Regulatory Factor-3/physiology
- Male
- Membrane Proteins/physiology
- Mice
- Mice, Transgenic
- Palmitic Acid/pharmacology
- Palmitic Acid/toxicity
- Phosphatidylinositol 3-Kinases/metabolism
- Signal Transduction/drug effects
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Affiliation(s)
- H Q Hu
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - J T Qiao
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - F Q Liu
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China; Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan 250012, China
| | - J B Wang
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - S Sha
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - Q He
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - C Cui
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - J Song
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - N Zang
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - L S Wang
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - Z Sun
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - L Chen
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China; Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan 250012, China.
| | - X G Hou
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China; Key Laboratory of Endocrine and Metabolic Diseases, Shandong Province Medicine & Health, Jinan 250012, China.
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15
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Zeng D, Li W, Zhou J, Wen X, Chen S, Xie X, Zang N, Deng Y, Ren L, Rizvi SAA, Shimizu Y, Park CS, Khaltaev N, Liu E. Analysis of the immunoglobin E molecular sensitization profile in children with allergic asthma and predictive factors for the efficacy of allergy immunotherapy. Ann Transl Med 2020; 8:1459. [PMID: 33313204 PMCID: PMC7723661 DOI: 10.21037/atm-20-7314] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background As the incidence of allergic asthma in children increases, the immunoglobin E (IgE) molecular sensitization profile of allergic asthma remains underreported while the level of total IgE (tIgE) and sIgE/tIgE have not been studied as predictors of efficacy of allergen immunotherapy (AIT) for allergic asthma, specifically in children. Methods Starting from August 2018 to March 2019 in the Respiratory Department of the Children’s Hospital of Chongqing Medical University, asthmatic children, with positive skin prick tests to Der p or Der f, were enrolled in this study. Total IgE, allergen serum-specific IgE (sIgE) of Der p, Der f, Blomia tropicalis (Blo t), cat dander, dog dander, egg white, milk, cockroach, shrimp, and crab, along with Der p allergen components, Der p1 and Der p2, were measured by ImmunoCAP™ assay. Results A total of 142 children with allergic asthma were enrolled, all of whom showed positive IgE for Der p, Der p1, Der p2, and Der f; meanwhile, the positive rates of Blo t, cat dander, dog dander, egg white, milk, cockroach, shrimp, and crab were 91.84%, 10.96%, 7.32%, 9.15%, 11.58%, 17.03%, 18.90%, and 18.28% respectively. A significantly high correlation was found between total IgE and the sIgE of Der f, Der p, Der p 1, and Der p 2. Asthmatic children with a family history of allergy displayed higher total IgE and unknown IgE levels than those patients without a family history of allergy. The ratios of Der f sIgE/tIgE and Der p sIgE/tIgE were higher in the negative family history of allergy group than in the positive family history of allergy group. Furthermore, total IgE and unknown IgE were higher in the polysensitized group than in the in monosensitized group. The ratios of Der f sIgE/tIgE and Der p sIgE/tIgE were higher in the monosensitized group than in the polysensitized group. Conclusions From this study, we noticed that dust mites are the main cause of asthma in children investigated. Our findings indicate patients with no family history of allergy and monosensitized patients have a higher ratio of sIgE/tIgE, and those patients may benefit more from AIT.
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Affiliation(s)
- Dan Zeng
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Department of Allergy, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
| | - Weiguo Li
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Juan Zhou
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Xiang Wen
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Shiyi Chen
- China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Pediatric Research Institute Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Xiaohong Xie
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Na Zang
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Yu Deng
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Luo Ren
- China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Pediatric Research Institute Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Syed A A Rizvi
- Department of Pharmaceutical Sciences, Hampton University School of Pharmacy (HUSOP), Hampton, VA, USA
| | - Yasuo Shimizu
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Chan Sun Park
- Department of Internal Medicine, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Korea
| | - Nikolai Khaltaev
- Global Alliance against Chronic Respiratory Diseases, Geneva, Switzerland
| | - Enmei Liu
- Department of Respiratory Medicine Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
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16
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Yu G, Mo S, Gao L, Wen X, Chen S, Long X, Xie X, Deng Y, Ren L, Zang N, Chen S, Liu E. Club cell 10-kDa protein (CC10) inhibits cPLA2/COX2 pathway to alleviate RSV-induced airway inflammation and AHR. Int Immunopharmacol 2020; 83:106327. [DOI: 10.1016/j.intimp.2020.106327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/14/2020] [Accepted: 02/14/2020] [Indexed: 11/25/2022]
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17
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Krietsch K, Duraccio K, Zang N, Beebe D. 0269 Restricting Sleep Increases Teens’ Sedentary Behavior Without Impacting Moderate to Vigorous Physical Activity. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Short sleep duration has been linked to obesity risk in adolescence. However, most research has focused on potential changes in appetite/intake, rather than physical activity or sedentary behaviors. It remains unknown if, in the daily lives of adolescents, sleep restriction increases moderate- to-vigorous physical activity (e.g., by providing more time for it) or discourages such activity (in favor of sedentary behaviors). This was the first study to use gold-standard objective measures to assess cause-and-effect relationships between sleep duration and the resulting activity levels of adolescents in the naturalistic environment.
Methods
N=104 healthy teens (ages 14–18) completed the 3-week within-subjects crossover sleep manipulation experiment during the summer. Following a 7-night a sleep stabilization week, teens were randomly assigned to 5 nights in Short Sleep (6.5hrs sleep opportunity) or Healthy Sleep (9.5hrs sleep opportunity). Following a 2-night “washout” period, they crossed over to the alternate sleep condition. Throughout the study, they wore validated waist-worn accelerometers to objectively measure sedentary and physical activity levels, and wrist-worn actigraphs to confirm adherence to their sleep condition.
Results
When in Short Sleep (vs. Healthy Sleep), teens on average slept 112 minutes less (p<.0001, d=1.72) per wrist actigraphy. Waist-worn accelerometers reflected 99 more minutes in sedentary behavior (p<.0001, d=.97), and 16 more minutes in light physical activity (p=.002, d=.31) during short sleep. Teens did not differ in moderate-to-vigorous physical activity between conditions (p=.95, d=.03).
Conclusion
Among healthy adolescents, a realistic dose of sleep restriction did not affect moderate-to-vigorous physical activity levels, but did sharply increase time in sedentary behavior. Given the negative weight and health consequences of sedentary behavior, these results have practical implications for obesity prevention/intervention efforts. They suggest that extending teen sleep may neither encourage nor discourage healthy physical activity, but may help curb unhealthy behaviors (e.g., sedentary behavior).
Support
R01 HL120879
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Affiliation(s)
- K Krietsch
- Cincinnati Children’s Hospital and Medical Center, Cincinnati, OH
| | - K Duraccio
- Cincinnati Children’s Hospital and Medical Center, Cincinnati, OH
| | - N Zang
- Cincinnati Children’s Hospital and Medical Center, Cincinnati, OH
| | - D Beebe
- Cincinnati Children’s Hospital and Medical Center, Cincinnati, OH
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18
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Xu H, Liu E, Xie J, Smyth RL, Zhou Q, Zhao R, Zang N, Long X, Tang Y, Estill J, Yang S, Zhu J, Yan X, Gong F, Tian W, Zhou X, Mo Y, Xiao H, Tang Z, Chen Y, Wang Y, Cui Y, Fang X, Li F, Tian Y, Li P, Deng Q, Ren C, He R, Li Y, Qin H, Wang A, Deng H, Wu J, Meng W, Li W, Zhao Y, Luo Z, Wang Z, Chen Y, Wong GWK, Li Q. A follow-up study of children infected with SARS-CoV-2 from western China. Ann Transl Med 2020; 8:623. [PMID: 32566560 PMCID: PMC7290618 DOI: 10.21037/atm-20-3192] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Background To clarify the characteristic and the duration of positive nucleic acid in children infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), including asymptomatic children. Methods A total of 32 children confirmed with SARS-CoV-2 infection between January 24 and February 12, 2020 from four provinces in western China were enrolled in this study and followed up until discharge and quarantine 14 days later. Results Eleven children (34%) were asymptomatic, among whom six children had normal computed tomographic (CT) scan images. Age and gender were not associated with clinical symptoms or the results of CT scan in children infected with SARS-CoV-2. The concentrations of white blood cells and neutrophils were higher in children with asymptomatic infection than in children with clinical symptoms or CT abnormalities. Patients who presented with CT abnormalities had lower D-dimer or lower total bilirubin than those who had normal CT scan but clinical symptoms. All children recovered and no one died or was admitted to the pediatric intensive care unit (PICU). The mean duration of positive SARS-CoV-2 nucleic acid was 15.4 (SD =7.2) days and similar for both asymptomatic children and children with symptoms or CT abnormalities. We found a significant negative correlation between the lymphocyte count and the duration of positive nucleic acid test. Conclusions Children with asymptomatic infection should be quarantined for the same duration as symptomatic patients infected with SARS-CoV-2. The clinical significance and mechanism behind the negative correlation between the number of lymphocytes and the duration of positive SARS-CoV-2 needs further study.
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Affiliation(s)
- Hongmei Xu
- Department of Infection, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - Enmei Liu
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Jun Xie
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Rosalind L Smyth
- UCL Great Ormond St Institute of Child Health, Great Ormond Street Hospital, London, UK
| | - Qi Zhou
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730000, China
| | - Ruiqiu Zhao
- Department of Infection, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - Na Zang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Xiaoru Long
- Department of Infection, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - Yuyi Tang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Janne Estill
- Institute of Global Health, University of Geneva, Geneva, Switzerland; Institute of Mathematical Statistics and Actuarial Science, University of Bern, Bern, Switzerland
| | - Shu Yang
- College of Medical Information Engineering, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jing Zhu
- Department of Infection, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - Xiaofeng Yan
- Department of Infection, Chongqing Public Health Medical Center, Chongqing 400036, China
| | - Fang Gong
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Wenguang Tian
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Xiaqia Zhou
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402460, China
| | - Yunbo Mo
- Department of Pediatrics, Three Gorges Hospital, Chongqing University, Chongqing 404100, China
| | - Hongzhou Xiao
- Department of Pediatrics, Three Gorges Hospital, Chongqing University, Chongqing 404100, China
| | - Zhengzhen Tang
- Department of Pediatrics, Third Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - Yanni Chen
- Department of Infection, Xi'an Children's Hospital, the Affiliated Children's Hospital of Xi'an Jiaotong University, Shaanxi 710003, China
| | - Yi Wang
- Department of Infection, Xi'an Children's Hospital, the Affiliated Children's Hospital of Xi'an Jiaotong University, Shaanxi 710003, China
| | - Yuxia Cui
- Department of Pediatrics, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - Xiuling Fang
- Department of Pediatrics, Tongchuan Mining Bureau Central Hospital, Tongchuan 727000, China
| | - Feiyu Li
- Department of Pediatrics, Xi'an Eighth Hospital, Xi'an 710065, China
| | - Yong Tian
- Department of Pediatrics, The People's Hospital of Xiushan County, Chongqing 409900, China
| | - Peibo Li
- Department of Pediatrics, The People's Hospital of Xiushan County, Chongqing 409900, China
| | - Quanmin Deng
- Department of Pediatrics, The People's Hospital of Deyang City, Deyang 618000, China
| | - Chongsong Ren
- Department of Pediatrics, Nanchong Central Hospital, Nanchong 637000, China
| | - Ronghui He
- Department of Pediatrics, Nanchong Central Hospital, Nanchong 637000, China
| | - Yi Li
- Department of Pediatrics, Suining Central Hospital, Suining 629000, China
| | - Hong Qin
- Department of Pediatrics, The People's Hospital of Fengdu County, Chongqing 408200, China
| | - Aiguo Wang
- Department of Pediatrics, The People's Hospital of Kaizhou District, Chongqing 405400, China
| | - Hongli Deng
- Department of Pediatrics, The People's Hospital of Hechuan District, Chongqing 401520, China
| | - Jianguo Wu
- Department of Pediatrics, The People's Hospital of Fengjie County, Chongqing 404600, China
| | - Wenbo Meng
- Special Minimally Invasive Surgery Department, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Weiguo Li
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yao Zhao
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Zhengxiu Luo
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Zijun Wang
- Evidence-based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yaolong Chen
- Evidence-based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Gary Wing Kin Wong
- Department of Pediatrics, The Chinese University of Hong Kong, Hong Kong, China
| | - Qiu Li
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China.,Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China.,Department of Nephrology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
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19
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Gao L, Mo S, Xie J, Chen S, Wen X, Long X, Ren L, Zang N, Xie X, Deng Y, Luo J, Luo Z, Fu Z, Smyth RL, Liu E. Respiratory syncytial virus nonstructural protein 1 downregulates glucocorticoid receptor expression through miR-29a. J Allergy Clin Immunol 2019; 144:854-857.e6. [PMID: 31128120 DOI: 10.1016/j.jaci.2019.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Leiqiong Gao
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Shi Mo
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Jun Xie
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Sisi Chen
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Xiang Wen
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Xiaoru Long
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Luo Ren
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Jian Luo
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Zhengxiu Luo
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Rosalind L Smyth
- University College London (UCL), Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, China.
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20
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Xie J, Long X, Gao L, Chen S, Zhao K, Li W, Zhou N, Zang N, Deng Y, Ren L, Wang L, Luo Z, Tu W, Zhao X, Fu Z, Xie X, Liu E. Respiratory Syncytial Virus Nonstructural Protein 1 Blocks Glucocorticoid Receptor Nuclear Translocation by Targeting IPO13 and May Account for Glucocorticoid Insensitivity. J Infect Dis 2019; 217:35-46. [PMID: 28968829 DOI: 10.1093/infdis/jix445] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/31/2017] [Indexed: 01/01/2023] Open
Abstract
Despite their powerful antiinflammatory effect, glucocorticoids have shown no significant clinical benefit in respiratory syncytial virus (RSV)-induced bronchiolitis, the reason for which remains unclear. Upon glucocorticoid binding, the cytoplasmic glucocorticoid receptor (GR) translocates to the nucleus with the help of importin 13 (IPO13). Here, we report that RSV infection reduced GR nuclear translocation in nasopharyngeal aspirates from RSV-infected infants, lungs of infected mice, and A549 cells, which coincided with decreased IPO13 expression. This led to repression of GR-induced antiinflammatory genes, such that dexamethasone failed to suppress airway inflammation and airway hyperresponsiveness in the infected mice. The anti-GR effect of RSV was mediated by viral nonstructural protein 1 , which likely functioned by competing with IPO13 for GR binding. Our findings provide a mechanism for the ineffectiveness of glucocorticoids in RSV-related disease and highlight the potential to target the IPO13-GR axis as a treatment for multiple glucocorticoid-related diseases.
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Affiliation(s)
- Jun Xie
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Xiaoru Long
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Leiqiong Gao
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Sisi Chen
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Keting Zhao
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Wei Li
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Na Zhou
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Na Zang
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Yu Deng
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing
| | - Luo Ren
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Lijia Wang
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Zhengxiu Luo
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing
| | - Wenwei Tu
- Department of Pediatrics and Adolescent Medicine, LKS Faculty of Medicine, University of Hong Kong, China
| | - Xiaodong Zhao
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders
| | - Zhou Fu
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing
| | - Xiaohong Xie
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing
| | - Enmei Liu
- Ministry of Education Key Laboratory of Child Development and Disorders.,Key Laboratory of Pediatrics in Chongqing.,Chongqing International Science and Technology Cooperation Center for Child Development and Disorders.,Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing
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21
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Zhuang J, Zang N, Ye C, Xu F. Lethal avian influenza A (H5N1) virus replicates in pontomedullary chemosensitive neurons and depresses hypercapnic ventilatory response in mice. Am J Physiol Lung Cell Mol Physiol 2019; 316:L525-L536. [PMID: 30628490 PMCID: PMC6459289 DOI: 10.1152/ajplung.00324.2018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/16/2018] [Revised: 12/04/2018] [Accepted: 12/29/2018] [Indexed: 01/09/2023] Open
Abstract
The highly pathogenic H5N1 (HK483) viral infection causes a depressed hypercapnic ventilatory response (dHCVR, 20%↓) at 2 days postinfection (dpi) and death at 7 dpi in mice, but the relevant mechanisms are not fully understood. Glomus cells in the carotid body and catecholaminergic neurons in locus coeruleus (LC), neurokinin 1 receptor (NK1R)-expressing neurons in the retrotrapezoid nucleus (RTN), and serotonergic neurons in the raphe are chemosensitive and responsible for HCVR. We asked whether the dHCVR became worse over the infection period with viral replication in these cells/neurons. Mice intranasally inoculated with saline or the HK483 virus were exposed to hypercapnia for 5 min at 0, 2, 4, or 6 dpi, followed by immunohistochemistry to determine the expression of nucleoprotein of H5N1 influenza A (NP) alone and coupled with 1) tyrosine hydroxylase (TH) in the carotid body and LC, 2) NK1R in the RTN, and 3) tryptophan hydroxylase (TPH) in the raphe. HK483 viral infection blunted HCVR by ∼20, 50, and 65% at 2, 4, and 6 dpi. The NP was observed in the pontomedullary respiratory-related nuclei (but not in the carotid body) at 4 and 6 dpi, especially in 20% of RTN NK1R, 35% of LC TH, and ∼10% raphe TPH neurons. The infection significantly reduced the local NK1R or TPH immunoreactivity and population of neurons expressing NK1R or TPH. We conclude that the HK483 virus infects the pontomedullary respiratory nuclei, particularly chemosensitive neurons in the RTN, LC, and raphe, contributing to the severe depression of HCVR and respiratory failure at 6 dpi. NEW & NOTEWORTHY The H5N1 virus infection is lethal due to respiratory failure, but the relevant mechanisms remain unclear. In this study, we demonstrated a gradual diminution of hypercapnic ventilatory response to a degree, leading to respiratory failure over a 6-day infection. Death was associated with viral replication in the pontomedullary respiratory-related nuclei, especially the central chemosensitive neurons. These results not only provide insight into the mechanisms of the lethality of H5N1 viral infection but also offer clues in the development of corresponding treatments to minimize and prevent respiratory failure.
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Affiliation(s)
- Jianguo Zhuang
- Pathophysiology Program, Lovelace Respiratory Research Institute , Albuquerque, New Mexico
| | - Na Zang
- Pathophysiology Program, Lovelace Respiratory Research Institute , Albuquerque, New Mexico
| | - Chunyan Ye
- Pathophysiology Program, Lovelace Respiratory Research Institute , Albuquerque, New Mexico
| | - Fadi Xu
- Pathophysiology Program, Lovelace Respiratory Research Institute , Albuquerque, New Mexico
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22
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Fu Y, Tang Z, Ye Z, Mo S, Tian X, Ni K, Ren L, Liu E, Zang N. Human adenovirus type 7 infection causes a more severe disease than type 3. BMC Infect Dis 2019; 19:36. [PMID: 30626350 PMCID: PMC6327436 DOI: 10.1186/s12879-018-3651-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [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: 08/26/2018] [Accepted: 12/21/2018] [Indexed: 12/21/2022] Open
Abstract
Background Human adenovirus type 3 (HAdV-3) and 7 (HAdV-7) cause significant morbidity and develop severe complications and long-term pulmonary sequelae in children. However, epidemiologic reports have suggested that nearly all highly severe or fatal adenoviral diseases in children are associated with HAdV-7 rather than HAdV-3. Here, we conduct in-depth investigations to confirm and extend these findings through a comprehensive series of assays in vitro and in vivo as well as clinical correlates. Methods A total of 8248 nasopharyngeal aspirate (NPA) samples were collected from hospitalized children with acute respiratory infections in Children’s Hospital of Chongqing Medical University from June 2009 to May 2015. Among 289 samples that tested positive for HAdVs, clinical data of 258 cases of HAdV-3 (127) and HAdV-7 (131) infections were analyzed. All HAdV-positive samples were classified by sequencing the hexon and fiber genes, and compared with clinical data and virological assays. We also performed in vitro assays of virus quantification, viral growth kinetics, competitive fitness, cytotoxicity and C3a assay of the two strains. Mouse adenovirus model was used to evaluate acute inflammatory responses. Results Clinical characteristics revealed that HAdV-7 infection caused more severe pneumonia, toxic encephalopathy, respiratory failure, longer mean hospitalization, significantly lower white blood cell (WBC) and platelet counts, compared to those of HAdV-3. In cell culture, HAdV-7 replicated at a higher level than HAdV-3, and viral fitness showed significant differences as well. HAdV-7 also exhibited higher C3a production and cytotoxic effects, and HAdV-7-infected mice showed aggravated pathology and higher pulmonary virus loads, compared to HAdV-3-infected mice. Macrophages in BALF remained markedly high during infection, with concomitant increase in pro-inflammatory cytokines (TNF-α, IL-1β, IFN-γ, and IL-6), compared HAdV-3 infection. Conclusions These results document that HAdV-7 replicates more robustly than HAdV-3, and promotes an exacerbated cytokine response, causing a more severe airway inflammation. The findings merit further mechanistic studies that offer the pediatricians an informed decision to proceed with early diagnosis and treatment of HAdV-7 infection.
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Affiliation(s)
- Yangxi Fu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Zhengzhen Tang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Zhixu Ye
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Shi Mo
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Xingui Tian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510180, China
| | - Ke Ni
- Institute of Biology, Westlake institute for Advanced Study, Hangzhou, 310024, Zhejiang, China
| | - Luo Ren
- Pediatric Research Institute of Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, 400014, China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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Abstract
This study uncovered the direct and indirect energy-related greenhouse gas (GHG) emissions of 213 Chinese national-level industrial parks, providing 11% of China's gross domestic product, from a life-cycle perspective. Direct emissions are sourced from fuel combustion, and indirect emissions are embodied in energy production. The results indicated that in 2015, the direct and indirect GHG emissions of the parks were 1042 and 181 million tonne CO2 equiv, respectively, totally accounting for 11% of national GHG emissions. The total energy consumption of the parks accounted for 10% of national energy consumption. Coal constituted 74% of total energy consumption in these parks. Baseline and low-carbon scenarios are established for 2030, and five GHG mitigation measures targeting energy consumption are modeled. The GHG mitigation potential for these parks in 2030 is quantified as 111 million tonne, equivalent to 9.1% of the parks' total emission in 2015. The measures that increase the share of natural gas consumption, reduce the GHG emission factor of electricity grid, and improve the average efficiency of industrial coal-fired boilers, will totally contribute 94% and 98% in direct and indirect GHG emissions reductions, respectively. These findings will provide a solid foundation for the low carbon development of Chinese industrial parks.
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Affiliation(s)
- Yang Guo
- School of Environment , Tsinghua University , Beijing 100084 , China
| | - Jinping Tian
- School of Environment , Tsinghua University , Beijing 100084 , China
| | - Na Zang
- School of Environment , Tsinghua University , Beijing 100084 , China
| | - Yang Gao
- School of Environment , Tsinghua University , Beijing 100084 , China
| | - Lujun Chen
- School of Environment , Tsinghua University , Beijing 100084 , China
- Zhejiang Provincial Key Laboratory of Water Science and Technology, Department of Environment , Yangtze Delta Region Institute of Tsinghua University , Zhejiang Jiaxing 314006 , China
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Tang Z, Zang N, Fu Y, Ye Z, Chen S, Mo S, Ren L, Liu E. HMGB1 mediates HAdV-7 infection-induced pulmonary inflammation in mice. Biochem Biophys Res Commun 2018; 501:1-8. [DOI: 10.1016/j.bbrc.2018.03.145] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 03/19/2018] [Indexed: 10/17/2022]
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Gao X, Zhao L, Zhuang J, Zang N, Xu F. Erratum. FASEB J 2017; 31:5625. [PMID: 29191966 DOI: 10.1096/fj.201700163rerr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiuping Gao
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Lei Zhao
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Jianguo Zhuang
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Na Zang
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Fadi Xu
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
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Gao X, Zhao L, Zhuang J, Zang N, Xu F. Prenatal nicotinic exposure prolongs superior laryngeal C-fiber-mediated apnea and bradycardia through enhancing neuronal TRPV1 expression and excitation. FASEB J 2017; 31:4325-4334. [PMID: 28615326 PMCID: PMC5602895 DOI: 10.1096/fj.201700163r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 02/22/2017] [Accepted: 05/30/2017] [Indexed: 02/03/2023]
Abstract
Maternal cigarette smoke, including prenatal nicotinic exposure (PNE), is responsible for sudden infant death syndrome (SIDS). The fatal events of SIDS are characterized by severe bradycardia and life-threatening apneas. Although activation of transient receptor potential vanilloid 1 (TRPV1) of superior laryngeal C fibers (SLCFs) could induce bradycardia and apnea and has been implicated in SIDS pathogenesis, how PNE affects the SLCF-mediated cardiorespiratory responses remains unexplored. Here, we tested the hypothesis that PNE would aggravate the SLCF-mediated apnea and bradycardia via up-regulating TRPV1 expression and excitation of laryngeal C neurons in the nodose/jugular (N/J) ganglia. To this end, we compared the following outcomes between control and PNE rat pups at postnatal days 11-14: 1) the cardiorespiratory responses to intralaryngeal application of capsaicin (10 µg/ml, 50 µl), a selective stimulant for TRPV1 receptors, in anesthetized preparation; 2) immunoreactivity and mRNA of TRPV1 receptors of laryngeal sensory C neurons in the N/J ganglia retrogradely traced by 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate; and 3) TRPV1 currents and electrophysiological characteristics of these neurons by using whole-cell patch-clamp technique in vitro Our results showed that PNE markedly prolonged the apneic response and exacerbated the bradycardic response to intralaryngeal perfusion of capsaicin, which was associated with up-regulation of TRPV1 expression in laryngeal C neurons. In addition, PNE increased the TRPV1 currents, depressed the slow delayed rectifier potassium currents, and increased the resting membrane potential of these neurons. Our results suggest that PNE is capable of aggravating the SLCF-mediated apnea and bradycardia through TRPV1 sensitization and neuronal excitation, which may contribute to the pathogenesis of SIDS.-Gao, X., Zhao, L., Zhuang, J., Zang, N., Xu, F. Prenatal nicotinic exposure prolongs superior laryngeal C-fiber-mediated apnea and bradycardia through enhancing neuronal TRPV1 expression and excitation.
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Affiliation(s)
- Xiuping Gao
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Lei Zhao
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Jianguo Zhuang
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Na Zang
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
| | - Fadi Xu
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico, USA
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Ye Z, Ren L, Tang Z, Deng Y, Xie X, Fu Z, Luo Z, Xu F, Zang N, Liu E. Pulmonary C-fiber degeneration downregulates IFN-γ receptor 1 via IFN-α induction to attenuate RSV-induced airway hyperresponsiveness. Virology 2017; 510:262-272. [PMID: 28772166 DOI: 10.1016/j.virol.2017.06.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 04/06/2017] [Revised: 06/25/2017] [Accepted: 06/29/2017] [Indexed: 12/19/2022]
Abstract
Respiratory syncytial virus (RSV) is a leading cause of respiratory infection in infants. Unfortunately, no effective vaccine or treatment against RSV is currently available. Pulmonary C-fibers (PCFs) are critical for regulating pulmonary inflammation and airway hyperresponsiveness (AHR). We previously reported that IFN-γ partially mediated RSV-induced airway disorders. In this study, we found that PCF degeneration alleviated RSV-induced airway inflammation, especially AHR by downregulating IFN-γ receptor 1 (IFNGR1), but had no effect on IFN-γ induction. In contrast, PCF degeneration actually increased IFN-α/β levels, as were the levels of STAT1 and phosphorylated STAT1 (pSTAT1). Exogenous IFN-α treatment induced STAT1 activation and downregulated IFNGR1 expression. These results suggest that PCFs affect IFNGR1 expression by inducing IFN-α to regulate IFN-γ-mediated airway inflammation and AHR. Thus, targeting PCFs activation may help control RSV-induced airway disorders, especially AHR, even with the presence of inflammation.
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Affiliation(s)
- Zhixu Ye
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing 400014, China; Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Luo Ren
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing 400014, China
| | - Zhengzhen Tang
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing 400014, China; Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - ZhengXiu Luo
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Fadi Xu
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM, 87108, USA
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014, China.
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Zhuang J, Zang N, Ye C, Xu F. Lethal avian influenza A (H5N1) virus induces ataxic breathing in mice with apoptosis of pre-Botzinger complex neurons expressing neurokinin-1 receptor. Am J Physiol Lung Cell Mol Physiol 2017; 313:L772-L780. [PMID: 28729347 DOI: 10.1152/ajplung.00145.2017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 03/29/2017] [Revised: 07/14/2017] [Accepted: 07/14/2017] [Indexed: 11/22/2022] Open
Abstract
Lethal influenza A (H5N1) induces respiratory failure in humans. Although it also causes death at 7 days postinfection (dpi) in mice, the development of the respiratory failure and the viral impact on pre-Botzinger complex (PBC) neurons expressing neurokinin 1 receptor (NK1R), which is the respiratory rhythm generator, have not been explored. Body temperature, weight, ventilation, and arterial blood pH and gases were measured at 0, 2, 4, and 6 dpi in control, lethal HK483, and nonlethal HK486 viral-infected mice. Immunoreactivities (IR) of PBC NK1R, H5N1 viral nucleoprotein (NP), and active caspase-3 (CASP3; a marker for apoptosis) were detected at 6 dpi. HK483, but not HK486, mice showed the following abnormalities: 1) gradual body weight loss and hypothermia; 2) tachypnea at 2-4 dpi and ataxic breathing with long-lasting apneas and hypercapnic hypoxemia at 6 dpi; and 3) viral replication in PBC NK1R neurons with NK1R-IR reduced by 75% and CASP3-IR colabeled at 6 dpi. Lethal H5N1 viral infection causes tachypnea at the early stage and ataxic breathing and apneas (hypercapnic hypoxemia) leading to death at the late stage. Its replication in the PBC induces apoptosis of local NK1R neurons, contributing to ataxic breathing and respiratory failure.
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Affiliation(s)
- Jianguo Zhuang
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Na Zang
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Chunyan Ye
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Fadi Xu
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
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Long X, Xie J, Zhao K, Li W, Tang W, Chen S, Zang N, Ren L, Deng Y, Xie X, Wang L, Fu Z, Liu E. NK cells contribute to persistent airway inflammation and AHR during the later stage of RSV infection in mice. Med Microbiol Immunol 2016; 205:459-70. [PMID: 27329138 DOI: 10.1007/s00430-016-0459-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 05/24/2016] [Indexed: 01/18/2023]
Abstract
RSV can lead to persistent airway inflammation and AHR and is intimately associated with childhood recurrent wheezing and asthma, but the underlying mechanisms remain unclear. There are high numbers of NK cells in the lung, which not only play important roles in the acute stage of RSV infection, but also are pivotal in regulating the pathogenesis of asthma. Therefore, in this study, we assumed that NK cells might contribute to persistent airway disease during the later stage of RSV infection. Mice were killed at serial time points after RSV infection to collect samples. Leukocytes in bronchoalveolar lavage fluid (BALF) were counted, lung histopathology was examined, and airway hyperresponsiveness (AHR) was measured by whole-body plethysmography. Cytokines were detected by ELISA, and NK cells were determined by flow cytometry. Rabbit anti-mouse asialo-GM-1 antibodies and resveratrol were used to deplete or suppress NK cells. Inflammatory cells in BALF, lung tissue damage and AHR were persistent for 60 days post-RSV infection. Type 2 cytokines and NK cells were significantly increased during the later stage of infection. When NK cells were decreased by the antibodies or resveratrol, type 2 cytokines, the persistent airway inflammation and AHR were all markedly reduced. NK cells can contribute to the RSV-associated persistent airway inflammation and AHR at least partially by promoting type 2 cytokines. Therefore, therapeutic targeting of NK cells may provide a novel approach to alleviating the recurrent wheezing subsequent to RSV infection.
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Affiliation(s)
- Xiaoru Long
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Jun Xie
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Keting Zhao
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Wei Li
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Wei Tang
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Sisi Chen
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Luo Ren
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Lijia Wang
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China.
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Zhao L, Zhuang J, Zang N, Lin Y, Lee LY, Xu F. Prenatal nicotinic exposure upregulates pulmonary C-fiber NK1R expression to prolong pulmonary C-fiber-mediated apneic response. Toxicol Appl Pharmacol 2016; 290:107-15. [PMID: 26524655 PMCID: PMC4732869 DOI: 10.1016/j.taap.2015.10.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 05/02/2015] [Revised: 09/06/2015] [Accepted: 10/29/2015] [Indexed: 01/15/2023]
Abstract
Prenatal nicotinic exposure (PNE) prolongs bronchopulmonary C-fiber (PCF)-mediated apneic response to intra-atrial bolus injection of capsaicin in rat pups. The relevant mechanisms remain unclear. Pulmonary substance P and adenosine and their receptors (neurokinin-A receptor, NK1R and ADA1 receptor, ADA1R) and transient receptor potential cation channel subfamily V member 1 (TRPV1) expressed on PCFs are critical for PCF sensitization and/or activation. Here, we compared substance P and adenosine in BALF and NK1R, ADA1R, and TRPV1 expression in the nodose/jugular (N/J) ganglia (vagal pulmonary C-neurons retrogradely labeled) between Ctrl and PNE pups. We found that PNE failed to change BALF substance P and adenosine content, but significantly upregulated both mRNA and protein TRPV1 and NK1R in the N/J ganglia and only NK1R mRNA in pulmonary C-neurons. To define the role of NK1R in the PNE-induced PCF sensitization, the apneic response to capsaicin (i.v.) without or with pretreatment of SR140333 (a peripheral and selective NK1R antagonist) was compared and the prolonged apnea by PNE significantly shortened by SR140333. To clarify if the PNE-evoked responses depended on action of nicotinic acetylcholine receptors (nAChRs), particularly α7nAChR, mecamylamine or methyllycaconitine (a general nAChR or a selective α7nAChR antagonist) was administrated via another mini-pump over the PNE period. Mecamylamine or methyllycaconitine eliminated the PNE-evoked mRNA and protein responses. Our data suggest that PNE is able to elevate PCF NK1R expression via activation of nAChRs, especially α7nAChR, which likely contributes to sensitize PCFs and prolong the PCF-mediated apneic response to capsaicin.
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MESH Headings
- Adenosine/pharmacology
- Animals
- Animals, Newborn
- Apnea/drug therapy
- Bronchoalveolar Lavage Fluid
- Capsaicin/pharmacology
- Female
- Ganglia/drug effects
- Ganglia/metabolism
- Lung/drug effects
- Male
- Nerve Fibers, Unmyelinated/drug effects
- Nerve Fibers, Unmyelinated/metabolism
- Nicotine/blood
- Nicotine/toxicity
- Pregnancy
- Prenatal Exposure Delayed Effects
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptors, Neurokinin-1/genetics
- Receptors, Neurokinin-1/metabolism
- Receptors, Neurokinin-2/genetics
- Receptors, Neurokinin-2/metabolism
- Substance P/pharmacology
- TRPV Cation Channels/genetics
- TRPV Cation Channels/metabolism
- Up-Regulation
- Vagus Nerve/drug effects
- Vagus Nerve/metabolism
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Affiliation(s)
- Lei Zhao
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Jianguo Zhuang
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Na Zang
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Yong Lin
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA
| | - Lu-Yuan Lee
- Department of Physiology, University of Kentucky, Lexington, KY, USA
| | - Fadi Xu
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, NM, USA; Department of Physiology, University of Kentucky, Lexington, KY, USA.
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Zang N, Li S, Li W, Xie X, Ren L, Long X, Xie J, Deng Y, Fu Z, Xu F, Liu E. Resveratrol suppresses persistent airway inflammation and hyperresponsivess might partially via nerve growth factor in respiratory syncytial virus-infected mice. Int Immunopharmacol 2015; 28:121-8. [DOI: 10.1016/j.intimp.2015.05.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Revised: 05/04/2015] [Accepted: 05/19/2015] [Indexed: 10/23/2022]
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Wu S, Zang N, Zhu J, Pan Z, Wu C. Congenital diaphragmatic eventration in children: 12 years' experience with 177 cases in a single institution. J Pediatr Surg 2015; 50:1088-92. [PMID: 25783408 DOI: 10.1016/j.jpedsurg.2014.09.055] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 08/13/2014] [Accepted: 09/03/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE This study sought to summarize the diagnostic and treatment aspects of congenital diaphragmatic eventration (CDE) in children by retrospectively analyzing their medical records to identify and understand the complications of CDE, its treatment, and to evaluate the long-term outcomes of diaphragmatic plication. METHODS The medical records of children who received treatment for CDE from January 2000 to December 2011 at the Children's Hospital of Chongqing Medical University, China were analyzed. Data analyzed included the following: age, sex, symptom, location of eventration, associated anomalies, surgical procedures, complications, and survival and follow up details after diaphragmatic plication. RESULTS The medical records of 177 children (boys: 128, girls: 49, mean age: 10.28±2.35 months) with CDE were included in this study. Specific symptoms of eventration of the diaphragm were reported for 86 cases; and the typical symptoms included rapid breathing, vomiting, and recurrent respiratory infections. Except for a bilateral case, all the other patients had unilateral CDE. Associated malformations were observed in 31 cases (17.5%), hypoplastic lung (10 cases) was the most common followed by congenital heart disease (9 cases), and cryptorchidism (3 cases). Interestingly, 91 patients were asymptomatic. Diaphragmatic plication was performed in all symptomatic patients (86 cases, 48.5%) and none had recurrence. CONCLUSIONS Clinical symptoms of CDE varied in severity, ranging from asymptomatic conditions to life-threatening respiratory distress. Timely accurate diagnosis and treatment of symptomatic CDE could effectively resolve respiratory morbidity and reduce complications. The diaphragm plication surgery provided good results among the study population with no recurrence.
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Affiliation(s)
- Shengde Wu
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Pediatric Surgery, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Na Zang
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University
| | - Jin Zhu
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Pathology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengxia Pan
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Pediatric Surgery, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Chun Wu
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders; Department of Pediatric Surgery, Children's Hospital of Chongqing Medical University, Chongqing, China
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Zang N, Zhuang J, Xu F, Liu E. Pulmonary C‐Fibers (PCFs) Are Essential for Airway Inflammation (AI) and Hyperreactivity (AHR) Induced by Respiratory Syncytial Virus (RSV) Infection. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1030.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Na Zang
- Department of Respiratory MedicineChildren's Hospital of ChongqingMedical UniversityChongqingChina
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Jianguo Zhuang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Fadi Xu
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Enmei Liu
- Department of Respiratory MedicineChildren's Hospital of ChongqingMedical UniversityChongqingChina
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35
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Zhao L, Zhuang J, Zang N, Lin Y, Xu F. Prenatal Nicotinic Exposure (PNE) Promotes Pulmonary IL‐1β and 5‐HT and Gene/Protein Expression of IL1R1, NK1R, ADRA1, and TRPV1 in N/J ganglia Neurons via Acting on α7nAChRs in Rat Pups. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1032.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lei Zhao
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Jianguo Zhuang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Na Zang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Yong Lin
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Fadi Xu
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
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Zhuang J, Zang N, Pollock Z, Ye C, Tipper J, Xu F. Depressed Hypoxic and Hypercapnic Ventilatory Responses (dHVR and dHCVR) Occur in Mice at the Late Stage of Lethal Avian Influenza A (H5N1) Virus Infection. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.860.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jianguo Zhuang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Na Zang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Zemmie Pollock
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Chuanyan Ye
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Jennifer Tipper
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Fadi Xu
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
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Zang N, Zhuang J, Ye C, Pollock Z, Tipper J, Xu F. The Severity of Lethal H5N1 Viral Infection‐Induced Changes in Pulmonary Inflammation and Functions Is Age‐Dependent. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1030.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Na Zang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Jianguo Zhuang
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Chunyan Ye
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Zemmie Pollock
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Jennifer Tipper
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Fadi Xu
- PathophysiologyLovelace Respiratory Research InstituteAlbuquerqueNMUnited States
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Zhuang J, Zhao L, Zang N, Xu F. Prenatal nicotinic exposure augments cardiorespiratory responses to activation of bronchopulmonary C-fibers. Am J Physiol Lung Cell Mol Physiol 2015; 308:L922-30. [PMID: 25747962 DOI: 10.1152/ajplung.00241.2014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 08/28/2014] [Accepted: 03/01/2015] [Indexed: 12/26/2022] Open
Abstract
Rat pups prenatally exposed to nicotine (PNE) present apneic (lethal ventilatory arrest) responses during severe hypoxia. To clarify whether these responses are of central origin, we tested PNE effects on ventilation and diaphragm electromyography (EMGdi) during hypoxia in conscious rat pups. PNE produced apnea (lethal ventilatory arrest) identical to EMGdi silencing during hypoxia, indicating a central origin of this apneic response. We further asked whether PNE would sensitize bronchopulmonary C-fibers (PCFs), a key player in generating central apnea, with increase of the density and transient receptor potential cation channel subfamily V member 1 (TRPV1) expression of C-fibers/neurons in the nodose/jugular (N/J) ganglia and neurotrophic factors in the airways and lungs. We compared 1) ventilatory and pulmonary C-neural responses to right atrial bolus injection of capsaicin (CAP, 0.5 μg/kg), 2) bronchial substance P-immunoreactive (SP-IR) fiber density, 3) gene and protein expressions of TRPV1 in the ganglia, and 4) nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) protein in bronchoalveolar lavage fluid (BALF) and TrkA and TrkB genes in the ganglia between control and PNE pups. PNE markedly strengthened the PCF-mediated apneic response to CAP via increasing pulmonary C-neural sensitivity. PNE also enhanced bronchial SP-IR fiber density and N/J ganglia neural TRPV1 expression associated with increased gene expression of TrkA in the N/G ganglia and decreased NGF and BDNF in BALF. Our results suggest that PNE enhances PCF sensitivity likely through increasing PCF density and TRPV1 expression via upregulation of neural TrkA and downregulation of pulmonary BDNF, which may contribute to the PNE-promoted central apnea (lethal ventilatory arrest) during hypoxia.
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Affiliation(s)
- Jianguo Zhuang
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Lei Zhao
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Na Zang
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
| | - Fadi Xu
- Pathophysiology Program, Lovelace Respiratory Research Institute, Albuquerque, New Mexico
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Long X, Li S, Xie J, Li W, Zang N, Ren L, Deng Y, Xie X, Wang L, Fu Z, Liu E. MMP-12-mediated by SARM-TRIF signaling pathway contributes to IFN-γ-independent airway inflammation and AHR post RSV infection in nude mice. Respir Res 2015; 16:11. [PMID: 25652021 PMCID: PMC4332892 DOI: 10.1186/s12931-015-0176-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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: 10/05/2014] [Accepted: 01/19/2015] [Indexed: 11/18/2022] Open
Abstract
Background Respiratory syncytial virus (RSV) is one of the most frequently observed pathogens during infancy and childhood. However, the corresponding pathogenesis has not been determined to date. We previously demonstrated that IFN-γ plays an important role in RSV pathogenesis, and SARM-TRIF-signaling pathway could regulate the production of IFN-γ. This study is to investigate whether T cells or innate immune cells are the predominant producers of IFN-γ, and further to explore other culprits in addition to IFN-γ in the condition of RSV infection. Methods Normal BALB/c mice and nude mice deficient in T cells were infected intranasally with RSV. Leukocytes in bronchoalveolar lavage fluid were counted, lung histopathology was examined, and airway hyperresponsiveness (AHR) was measured by whole-body plethysmography. IFN-γ and MMP-12 were detected by ELISA. MMP408, a selective MMP-12 inhibitor, was given intragastrically. Resveratrol, IFN-γ neutralizing antibody and recombinant murine IFN-γ were administered intraperitoneally. SARM and TRIF protein were semi-quantified by Western blot. siRNA was used to knock-down SARM expression. Results RSV induced significant airway inflammation and AHR in both mice; IFN-γ was significantly increased in BALB/c mice but not in nude mice. MMP-12 was dramatically increased in both mice but earlier in nude mice. When MMP-12 was inhibited by MMP408, RSV-induced respiratory symptoms were alleviated. SARM was significantly suppressed while TRIF was significantly enhanced in both mice strains. Following resveratrol administration in nude mice, 1) SARM inhibition was prevented, 2) TRIF and MMP-12 were correspondingly down-regulated and 3) airway disorders were subsequently alleviated. Moreover, when SARM was efficiently knocked down using siRNA, TRIF and MMP-12 were markedly enhanced, and the anti-RSV effects of resveratrol were remarkably abrogated. MMP-12 was significantly increased in the IFN-γ neutralizing antibody-treated BALB/c mice but reduced in the recombinant murine IFN-γ-treated nude mice. Conclusions MMP-12 can result in at least part of the airway inflammation and AHR independent of IFN-γ. And SARM-TRIF- signaling pathway is involved in regulating the overproduction of MMP-12. To the best of our knowledge, this study is the first that has examined the effects of SARM on MMP-12 and further highlights the potential to target SARM-TRIF-MMP-12 cascades to treat RSV infection. Electronic supplementary material The online version of this article (doi:10.1186/s12931-015-0176-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoru Long
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, 400014, P.R. China.
| | - Simin Li
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, 400014, P.R. China.
| | - Jun Xie
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, 400014, P.R. China.
| | - Wei Li
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, 400014, P.R. China.
| | - Na Zang
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, 400014, P.R. China.
| | - Luo Ren
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, P.R. China.
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, P.R. China.
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, P.R. China.
| | - Lijia Wang
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, P.R. China.
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, P.R. China.
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No.136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, P.R. China.
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Zhuang J, Zhao L, Zang N, Xu F. Prenatal nicotinic exposure increases pulmonary C neural response to capsaicin associated with upregulation of TRPV1 in nodose ganglia neurons (713.4). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.713.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jianguo Zhuang
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Lei Zhao
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Na Zang
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Fadi Xu
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
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Zang N, Zhou N, Deng Y, Xie X, Xu F, Liu E. Downregulation of NGF attenuates AHR persistence induced by respiratory syncytial virus infection in BALB/c mice (870.3). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.870.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Na Zang
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Na Zhou
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
| | - Yu Deng
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
| | - Xiaohong Xie
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
| | - Fadi Xu
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Enmei Liu
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
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Zang N, Zhou N, Deng Y, Xu F, Liu E. Respiratory syncytial virus‐induced chronic airway inflammation and AHR (CAI‐CAHR) is associated with upregulation of Th2‐like cytokines via TLRs‐TRIF but not TSLP signaling pathway (870.2). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.870.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Na Zang
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Na Zhou
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
| | - Yu Deng
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
| | - Fadi Xu
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Enmei Liu
- Department of Respiratory Medicine Children´s Hospital of Chongqing Medical UniversityChongqingChina
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43
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Zhao L, Zang N, Zhu Q, Zhuang J, Lee L, Xu F. Upregulation of substance P, neurokinin‐1 receptor, TRPV1, and adenosine A
1
R in nodose ganglia of rat pups treated with prenatal nicotinic exposure (713.5). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.713.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lei Zhao
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Na Zang
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Qicheng Zhu
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Jianguo Zhuang
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
| | - Lu‐Yuan Lee
- Department of Physiology University of KentuckyLexingtonKYUnited States
| | - Fadi Xu
- Pathophysiology Program Lovelace Respiratory Research InstituteAlbuquerqueNMUnited States
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Zang N, Qian XM, Liao JY, Shu CM. Thermal stability of lauroyl peroxide by isoconversional kinetics evaluation and finite element analysis. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Xie XH, Zang N, Li SM, Wang LJ, Deng Y, He Y, Yang XQ, Liu EM. Resveratrol Inhibits respiratory syncytial virus-induced IL-6 production, decreases viral replication, and downregulates TRIF expression in airway epithelial cells. Inflammation 2013; 35:1392-401. [PMID: 22391746 DOI: 10.1007/s10753-012-9452-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Respiratory syncytial virus (RSV) is the most common pathogen responsible for lower respiratory diseases in children. So far, there is no effective treatment or preventative vaccine available for RSV infection, although ribavirin and dexamethasone are commonly prescribed. Resveratrol has been shown to inhibit the replication of several other viruses, thus the effect of resveratrol on RSV-induced inflammatory mediators in 9HTEo cell cultures was evaluated, and possible mechanisms of action were explored and compared with dexamethasone and ribavirin. Incubation with resveratrol resulted in decreased IL-6 production and partial inhibition of RSV replication. Resveratrol treatment also inhibited virus-induced TIR-domain-containing adapter-inducing interferon-β (TRIF) and TANK binding kinase 1 (TBK1) protein expression. These data demonstrate the ability of resveratrol to inhibit cytokine production by RSV in airway epithelial cells, indicating that it might be a therapeutic agent with both anti-inflammatory and antiviral potential for the treatment of RSV infection.
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Affiliation(s)
- Xiao-Hong Xie
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing, 400014, People's Republic of China
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Ni K, Li S, Xia Q, Zang N, Deng Y, Xie X, Luo Z, Luo Y, Wang L, Fu Z, Liu E. Pharyngeal microflora disruption by antibiotics promotes airway hyperresponsiveness after respiratory syncytial virus infection. PLoS One 2012; 7:e41104. [PMID: 22844430 PMCID: PMC3406033 DOI: 10.1371/journal.pone.0041104] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [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: 12/14/2011] [Accepted: 06/20/2012] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Regulatory T cells (Treg cells), which are essential for regulation of immune response to respiratory syncytial virus (RSV) infection, are promoted by pharyngeal commensal pneumococcus. The effects of pharyngeal microflora disruption by antibiotics on airway responsiveness and relative immune responses after RSV infection have not been clarified. METHODS Female BALB/c mice (aged 3 weeks) were infected with RSV and then treated with either oral antibiotics or oral double distilled water (ddH(2)O) from 1 d post infection (pi). Changes in pharyngeal microflora were analyzed after antibiotic treatment for 7 d and 14 d. At 8 d pi and 15 d pi, the inflammatory cells in bronchoalveolar lavage fluid (BALF) were investigated in combination with tests of pulmonary histopathology, airway hyperresponsiveness (AHR), pulmonary and splenic Treg cells responses. Pulmonary Foxp3 mRNA expression, IL-10 and TGF-β1 in BALF and lung homogenate were investigated at 15 d pi. Ovalbumin (OVA) challenge was used to induce AHR after RSV infection. RESULTS The predominant pharyngeal commensal, Streptococcus, was cleared by antibiotic treatment for 7 d. Same change also existed after antibiotic treatment for 14 d. After RSV infection, AHR was promoted by antibiotic treatment at 15 d pi. Synchronous decreases of pulmonary Treg cells, Foxp3 mRNA and TGF-β1 were detected. Similar results were observed under OVA challenge. CONCLUSIONS After RSV infection, antibiotic treatment cleared pharyngeal commensal bacteria such as Streptococcus, which consequently, might induce AHR and decrease pulmonary Treg cells.
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Affiliation(s)
- Ke Ni
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing Medical University, Chongqing, China
| | - Simin Li
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing Medical University, Chongqing, China
| | - Qiuling Xia
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing Medical University, Chongqing, China
| | - Na Zang
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing Medical University, Chongqing, China
| | - Yu Deng
- Department of Respiratory Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengxiu Luo
- Department of Respiratory Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Luo
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing Medical University, Chongqing, China
| | - Lijia Wang
- Ministry of Education Key Laboratory of Child Development and Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing Medical University, Chongqing, China
| | - Zhou Fu
- Department of Respiratory Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Enmei Liu
- Department of Respiratory Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
- * E-mail:
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Ning QY, Wu JZ, Zang N, Liang J, Hu YL, Mo ZN. Key pathways involved in prostate cancer based on gene set enrichment analysis and meta analysis. Genet Mol Res 2011; 10:3856-87. [PMID: 22194210 DOI: 10.4238/2011.december.14.10] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Prostate cancer is one of the most common male malignant neoplasms; however, its causes are not completely understood. A few recent studies have used gene expression profiling of prostate cancer to identify differentially expressed genes and possible relevant pathways. However, few studies have examined the genetic mechanics of prostate cancer at the pathway level to search for such pathways. We used gene set enrichment analysis and a meta-analysis of six independent studies after standardized microarray preprocessing, which increased concordance between these gene datasets. Based on gene set enrichment analysis, there were 12 down- and 25 up-regulated mixing pathways in more than two tissue datasets, while there were two down- and two up-regulated mixing pathways in three cell datasets. Based on the meta-analysis, there were 46 and nine common pathways in the tissue and cell datasets, respectively. Three up- and 10 down-regulated crossing pathways were detected with combined gene set enrichment analysis and meta-analysis. We found that genes with small changes are difficult to detect by classic univariate statistics; they can more easily be identified by pathway analysis. After standardized microarray preprocessing, we applied gene set enrichment analysis and a meta-analysis to increase the concordance in identifying biological mechanisms involved in prostate cancer. The gene pathways that we identified could provide insight concerning the development of prostate cancer.
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Affiliation(s)
- Q Y Ning
- Department of Infection, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
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Deng Y, Chen W, Zang N, Li S, Luo Y, Ni K, Wang L, Xie X, Liu W, Yang X, Fu Z, Liu E. The antiasthma effect of neonatal BCG vaccination does not depend on the Th17/Th1 but IL-17/IFN-γ balance in a BALB/c mouse asthma model. J Clin Immunol 2011; 31:419-29. [PMID: 21340706 DOI: 10.1007/s10875-010-9503-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Accepted: 12/27/2010] [Indexed: 12/01/2022]
Abstract
OBJECTIVE This study aimed to determine whether the protective effects of the Mycobacterium bovis Bacillus Calmette-Guérin (BCG) vaccination on allergic asthma are associated with the T helper (Th) 17/Th1 balance in a murine asthma model. METHODS BALB/c neonates were vaccinated with BCG on the first day after birth, sensitized with ovalbumin, and then challenged with allergen. The resulting airway inflammation and responsiveness were measured. The levels of IL-17 and interferon (IFN)-γ in BALF and ratio of Th17/Th1 were investigated. RESULTS We found that although BCG neonatal vaccination inhibited airway hyperresponsiveness and inflammation following allergen challenge in a BALB/c mouse asthma model, reduced levels of Th2 cytokines were not observed. However, BCG neonatal vaccination reduced IL-17 production and increased IFN-γ production in both the bronchoalveolar lavage fluid and the lung lymphocytes in asthmatic mice. CONCLUSION The antiasthma effects of neonatal BCG vaccination reversed the IL-17/IFN-γ imbalance in a murine asthma model but did not depend on modifying the Th17/Th1 balance.
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Affiliation(s)
- Yu Deng
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
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