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Yang J, Bahcecioglu G, Ronan G, Zorlutuna P. Aged Breast Matrix Bound Vesicles Promote Breast Cancer Invasiveness. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.03.535436. [PMID: 37066396 PMCID: PMC10103978 DOI: 10.1101/2023.04.03.535436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Aging is one of the inherent risk factors for breast cancer. Although the influence of age-related cellular alterations on breast cancer development has been extensively explored, little is known about the alterations in the aging breast tissue microenvironment, specifically the extracellular matrix (ECM). Here, for the first time in literature, we have identified tissue resident matrix bound vesicles (MBVs) within the healthy mouse breast ECM, investigated and compared their characteristics in young and aged healthy breast tissues, and studied the effects of these MBVs on normal (KTB21) and cancerous (MDA-MB-231) human mammary epithelial cells with respect to the tissue age that they are extracted from. Using vesicle labeling technology, we were able to visualize cellular uptake of the MBVs directly from the native decellularized tissue sections, showing that these MBVs have regulatory roles in the tissue microenvironment. We mimicked the ECM by embedding the MBVs in collagen gels, and showed that MBVs could be taken up by the cells. The miRNA and cytokine profiling showed that MBVs shifted towards a more tumorigenic and invasive phenotype with age, as evidenced by the more pronounced presence of cancer-associated cytokines, and higher expression levels of oncomiRs miR-10b, miR-30e, and miR-210 in MBVs isolated from aged mice. When treated with MBVs or these upregulated factors, KTB21 and MDA-MB-231 cells showed significantly higher motility and invasion compared to untreated controls. Treatment of cells with a cocktail of miRNAs (miR-10b, miR-30e, and miR-210) or with the agonist of adiponectin (AdipoRon), which both were enriched in the aged MBVs, recapitulated the effect of aged MBVs on cells. This study shows for the first time that the MBVs have a regulatory role in the tissue microenvironment and that the MBV contents change towards cancer-promoting upon aging. Studying the effects of MBVs and their cargos on cellular behavior could lead to a better understanding of the critical roles of MBVs played in breast cancer progression and metastasis.
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Lazari LC, Ghilardi FDR, Rosa-Fernandes L, Assis DM, Nicolau JC, Santiago VF, Dalçóquio TF, Angeli CB, Bertolin AJ, Marinho CR, Wrenger C, Durigon EL, Siciliano RF, Palmisano G. Prognostic accuracy of MALDI-TOF mass spectrometric analysis of plasma in COVID-19. Life Sci Alliance 2021; 4:e202000946. [PMID: 34168074 PMCID: PMC8321665 DOI: 10.26508/lsa.202000946] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 05/31/2021] [Accepted: 05/31/2021] [Indexed: 12/17/2022] Open
Abstract
SARS-CoV-2 infection poses a global health crisis. In parallel with the ongoing world effort to identify therapeutic solutions, there is a critical need for improvement in the prognosis of COVID-19. Here, we report plasma proteome fingerprinting that predict high (hospitalized) and low-risk (outpatients) cases of COVID-19 identified by a platform that combines machine learning with matrix-assisted laser desorption ionization mass spectrometry analysis. Sample preparation, MS, and data analysis parameters were optimized to achieve an overall accuracy of 92%, sensitivity of 93%, and specificity of 92% in dataset without feature selection. We identified two distinct regions in the MALDI-TOF profile belonging to the same proteoforms. A combination of SDS-PAGE and quantitative bottom-up proteomic analysis allowed the identification of intact and truncated forms of serum amyloid A-1 and A-2 proteins, both already described as biomarkers for viral infections in the acute phase. Unbiased discrimination of high- and low-risk COVID-19 patients using a technology that is currently in clinical use may have a prompt application in the noninvasive prognosis of COVID-19. Further validation will consolidate its clinical utility.
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Affiliation(s)
- Lucas Cardoso Lazari
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Livia Rosa-Fernandes
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - José Carlos Nicolau
- Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil
| | - Veronica Feijoli Santiago
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Claudia B Angeli
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Claudio Rf Marinho
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Carsten Wrenger
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Edison Luiz Durigon
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Giuseppe Palmisano
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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3
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Brown RB. Sodium Toxicity in the Nutritional Epidemiology and Nutritional Immunology of COVID-19. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:739. [PMID: 34440945 PMCID: PMC8399536 DOI: 10.3390/medicina57080739] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/17/2021] [Accepted: 07/19/2021] [Indexed: 02/06/2023]
Abstract
Dietary factors in the etiology of COVID-19 are understudied. High dietary sodium intake leading to sodium toxicity is associated with comorbid conditions of COVID-19 such as hypertension, kidney disease, stroke, pneumonia, obesity, diabetes, hepatic disease, cardiac arrhythmias, thrombosis, migraine, tinnitus, Bell's palsy, multiple sclerosis, systemic sclerosis, and polycystic ovary syndrome. This article synthesizes evidence from epidemiology, pathophysiology, immunology, and virology literature linking sodium toxicological mechanisms to COVID-19 and SARS-CoV-2 infection. Sodium toxicity is a modifiable disease determinant that impairs the mucociliary clearance of virion aggregates in nasal sinuses of the mucosal immune system, which may lead to SARS-CoV-2 infection and viral sepsis. In addition, sodium toxicity causes pulmonary edema associated with severe acute respiratory syndrome, as well as inflammatory immune responses and other symptoms of COVID-19 such as fever and nasal sinus congestion. Consequently, sodium toxicity potentially mediates the association of COVID-19 pathophysiology with SARS-CoV-2 infection. Sodium dietary intake also increases in the winter, when sodium losses through sweating are reduced, correlating with influenza-like illness outbreaks. Increased SARS-CoV-2 infections in lower socioeconomic classes and among people in government institutions are linked to the consumption of foods highly processed with sodium. Interventions to reduce COVID-19 morbidity and mortality through reduced-sodium diets should be explored further.
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Affiliation(s)
- Ronald B Brown
- School of Public Health Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada
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4
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Shin DH, Nguyen T, Ozpolat B, Lang F, Alonso M, Gomez-Manzano C, Fueyo J. Current strategies to circumvent the antiviral immunity to optimize cancer virotherapy. J Immunother Cancer 2021; 9:jitc-2020-002086. [PMID: 33795384 PMCID: PMC8021759 DOI: 10.1136/jitc-2020-002086] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2021] [Indexed: 12/11/2022] Open
Abstract
Cancer virotherapy is a paradigm-shifting treatment modality based on virus-mediated oncolysis and subsequent antitumor immune responses. Clinical trials of currently available virotherapies showed that robust antitumor immunity characterizes the remarkable and long-term responses observed in a subset of patients. These data suggest that future therapies should incorporate strategies to maximize the immunotherapeutic potential of oncolytic viruses. In this review, we highlight the recent evidence that the antiviral immunity of the patients may limit the immunotherapeutic potential of oncolytic viruses and summarize the most relevant approaches to strategically redirect the immune response away from the viruses and toward tumors to heighten the clinical impact of viro-immunotherapy platforms.
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Affiliation(s)
- Dong Ho Shin
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Teresa Nguyen
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Bulent Ozpolat
- Department of Experimental Therapeutics, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Frederick Lang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Marta Alonso
- Department of Pediatrics, Clinica Universidad de Navarra, Pamplona, Navarra, Spain
| | - Candelaria Gomez-Manzano
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Juan Fueyo
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Fukuyama S, Iwatsuki-Horimoto K, Kiso M, Nakajima N, Gregg RW, Katsura H, Tomita Y, Maemura T, da Silva Lopes TJ, Watanabe T, Shoemaker JE, Hasegawa H, Yamayoshi S, Kawaoka Y. Pathogenesis of Influenza A(H7N9) Virus in Aged Nonhuman Primates. J Infect Dis 2021; 222:1155-1164. [PMID: 32433769 DOI: 10.1093/infdis/jiaa267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 05/16/2020] [Indexed: 12/24/2022] Open
Abstract
The avian influenza A(H7N9) virus has caused high mortality rates in humans, especially in the elderly; however, little is known about the mechanistic basis for this. In the current study, we used nonhuman primates to evaluate the effect of aging on the pathogenicity of A(H7N9) virus. We observed that A(H7N9) virus infection of aged animals (defined as age 20-26 years) caused more severe symptoms than infection of young animals (defined as age 2-3 years). In aged animals, lung inflammation was weak and virus infection was sustained. Although cytokine and chemokine expression in the lungs of most aged animals was lower than that in the lungs of young animals, 1 aged animal showed severe symptoms and dysregulated proinflammatory cytokine and chemokine production. These results suggest that attenuated or dysregulated immune responses in aged animals are responsible for the severe symptoms observed among elderly patients infected with A(H7N9) virus.
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Affiliation(s)
- Satoshi Fukuyama
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Kiyoko Iwatsuki-Horimoto
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Maki Kiso
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Noriko Nakajima
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Robert W Gregg
- Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hiroaki Katsura
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Yuriko Tomita
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tadashi Maemura
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA.,Department of Special Pathogens, International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Tiago Jose da Silva Lopes
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Tokiko Watanabe
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Jason E Shoemaker
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Hideki Hasegawa
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Seiya Yamayoshi
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Yoshihiro Kawaoka
- Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan.,Department of Special Pathogens, International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Tokyo, Japan
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Deng LS, Yuan J, Ding L, Chen YL, Zhao CH, Chen GQ, Li XH, Li XH, Luo WT, Lan JF, Tan GY, Tang SH, Xia JY, Liu X. Comparison of patients hospitalized with COVID-19, H7N9 and H1N1. Infect Dis Poverty 2020; 9:163. [PMID: 33261654 PMCID: PMC7707904 DOI: 10.1186/s40249-020-00781-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 11/18/2020] [Indexed: 01/10/2023] Open
Abstract
Background There is an urgent need to better understand the novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), for that the coronavirus disease 2019 (COVID-19) continues to cause considerable morbidity and mortality worldwide. This paper was to differentiate COVID-19 from other respiratory infectious diseases such as avian-origin influenza A (H7N9) and influenza A (H1N1) virus infections. Methods We included patients who had been hospitalized with laboratory-confirmed infection by SARS-CoV-2 (n = 83), H7N9 (n = 36), H1N1 (n = 44) viruses. Clinical presentation, chest CT features, and progression of patients were compared. We used the Logistic regression model to explore the possible risk factors. Results Both COVID-19 and H7N9 patients had a longer duration of hospitalization than H1N1 patients (P < 0.01), a higher complication rate, and more severe cases than H1N1 patients. H7N9 patients had higher hospitalization-fatality ratio than COVID-19 patients (P = 0.01). H7N9 patients had similar patterns of lymphopenia, neutrophilia, elevated alanine aminotransferase, C-reactive protein, lactate dehydrogenase, and those seen in H1N1 patients, which were all significantly different from patients with COVID-19 (P < 0.01). Either H7N9 or H1N1 patients had more obvious symptoms, like fever, fatigue, yellow sputum, and myalgia than COVID-19 patients (P < 0.01). The mean duration of viral shedding was 9.5 days for SARS-CoV-2 vs 9.9 days for H7N9 (P = 0.78). For severe cases, the meantime from illness onset to severity was 8.0 days for COVID-19 vs 5.2 days for H7N9 (P < 0.01), the comorbidity of chronic heart disease was more common in the COVID-19 patients than H7N9 (P = 0.02). Multivariate analysis showed that chronic heart disease was a possible risk factor (OR > 1) for COVID-19, compared with H1N1 and H7N9. Conclusions The proportion of severe cases were higher for H7N9 and SARS-CoV-2 infections, compared with H1N1. The meantime from illness onset to severity was shorter for H7N9. Chronic heart disease was a possible risk factor for COVID-19.The comparison may provide the rationale for strategies of isolation and treatment of infected patients in the future.
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Affiliation(s)
- Li-Si Deng
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Jing Yuan
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Li Ding
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Yuan-Li Chen
- Department of Hospital Infection Control, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Chao-Hui Zhao
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Gong-Qi Chen
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Xing-Hua Li
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Xiao-He Li
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Wen-Tao Luo
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China
| | - Jian-Feng Lan
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Guo-Yu Tan
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Sheng-Hong Tang
- Diagnosis and Treatment of Infectious Diseases Research Laboratory, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Jin-Yu Xia
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
| | - Xi Liu
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, 519000, China.
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7
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Shi N, Huang J, Zhang X, Bao C, Yue N, Wang Q, Cui T, Zheng M, Huo X, Jin H. Interventions in Live Poultry Markets for the Control of Avian Influenza: A Systematic Review and Meta-analysis. J Infect Dis 2020; 221:553-560. [PMID: 31323094 DOI: 10.1093/infdis/jiz372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 07/11/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND This review aimed to provide constructive suggestions for the control and management of avian influenza through quantitative and qualitative evaluation of the impact of different live poultry market (LPM) interventions. METHODS Both English and Chinese language databases were searched for articles that were published on or before 9 November 2018. After extraction and assessment of the included literature, Stata14.0 was applied to perform a meta-analysis to explore the impacts of LPM interventions. RESULTS A total of 19 studies were identified. In total, 224 human, 3550 poultry, and 13 773 environment samples were collected before the intervention; 181 people, 4519 poultry, and 9562 environments were sampled after LPM interventions. Avian influenza virus (AIV) detection rates in the LPM environment (odds ratio [OR], 0.393; 95% confidence interval [CI], 0.262-0.589) and the incidence of AIV infection (OR, 0.045; 95% CI, 0.025-0.079) were significantly lower after LPM interventions, while interventions were not significantly effective in reducing AIV detection in poultry samples (OR, 0.803; 95% CI, 0.403-1.597). CONCLUSIONS LPM interventions can reduce AIV human infections and the detection rate of AIV in market environments.
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Affiliation(s)
- Naiyang Shi
- Department of Epidemiology and Health Statistics, Nanjing, China.,Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Jinxin Huang
- Department of Epidemiology and Health Statistics, Nanjing, China.,Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Xuefeng Zhang
- Jiangsu Center of Disease Control and Prevention, Nanjing, China
| | - Changjun Bao
- Jiangsu Center of Disease Control and Prevention, Nanjing, China
| | - Na Yue
- Department of Epidemiology and Health Statistics, Nanjing, China.,Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Qiang Wang
- Department of Epidemiology and Health Statistics, Nanjing, China
| | - Tingting Cui
- Department of Epidemiology and Health Statistics, Nanjing, China
| | - Mengyun Zheng
- Department of Epidemiology and Health Statistics, Nanjing, China
| | - Xiang Huo
- Jiangsu Center of Disease Control and Prevention, Nanjing, China
| | - Hui Jin
- Department of Epidemiology and Health Statistics, Nanjing, China.,Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
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9
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Clinical indices and mortality of hospitalized avian influenza A (H7N9) patients in Guangdong, China. Chin Med J (Engl) 2019; 132:302-310. [PMID: 30681496 PMCID: PMC6595816 DOI: 10.1097/cm9.0000000000000043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background: Six epidemic waves of human infection with avian influenza A (H7N9) virus have emerged in China with high mortality. However, study on quantitative relationship between clinical indices in ill persons and H7N9 outcome (fatal and non-fatal) is still unclear. A retrospective cohort study was conducted to collect laboratory-confirmed cases with H7N9 viral infection from 2013 to 2015 in 23 hospitals across 13 cities in Guangdong Province, China. Methods: Multivariable logistic regression model and classification tree model analyses were used to detect the threshold of selected clinical indices and risk factors for H7N9 death. The receiver operating characteristic curve (ROC) and analyses were used to compare survival and death distributions and differences between indices. A total of 143 cases with 90 survivors and 53 deaths were investigated. Results: Average age (Odds Ratio (OR) = 1.036, 95% Confidence Interval (CI) = 1.016–1.057), interval days between dates of onset and confirmation (OR = 1.078, 95% CI = 1.004–1.157), interval days between onset and oseltamivir treatment (OR = 5.923, 95% CI = 1.877–18.687), body temperature (BT) (OR = 3.612, 95% CI = 1.914–6.815), white blood cell count (WBC) (OR = 1.212, 95% CI = 1.092–1.346) were significantly associated with H7N9 death after adjusting for confounders. The chance of death from H7N9 infection was 80.0% if BT was over 38.1 °C, and chance of death is 67.4% if WBC count was higher than 9.5 (109/L). Only 27.1% of patients who began oseltamivir treatment less than 9.5 days after disease onset died, compared to 68.8% of those who started treatment more than 15.5 days after onset. Conclusions: The intervals between date of onset and confirmation of diagnosis, between date of onset to oseltamivir treatment, age, BT and WBC are found to be the best predictors of H7N9 mortality.
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Amaya Santiago HJ, Barbosa J, Saavedra Trujillo CH. Descripción de características demográficas y clínicas de una cohorte pacientes fallecidos por infección respiratoria aguda en Colombia durante los años 2009 a 2013. INFECTIO 2019. [DOI: 10.22354/in.v23i2.771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objetivo: Describir las características clínicas, demográficas, aislamientos virales y hallazgos de histopatología de individuos que fallecieron por Infección Respiratoria Aguda (IRA) y que fueron notificados al Instituto Nacional de Salud (INS) entre los años 2009 y 2013.Métodos: Estudio observacional, descriptivo, retrospectivo, basado en la revisión de fichas epidemiológicas y reportes de estudios de virología e histopatología de muestras respiratorias de individuos fallecidos con diagnóstico de IRAResultados: De 1604 personas fallecidas se encontró que, 55% fueron hombres, 46,5% de los individuos tenía entre 20 y 59 años. La RT-PCR fue positiva en 18,3% de los casos, los virus más frecuentes fueron: influenza A(H1N1)pdm09 13,9%, A(H3N3) 1,9% e influenza B 0,5%. La letalidad de IRA fue mayor en los individuos que recibieron antiviral o antibiótico OR 2,80 (IC 95% 2,29 - 3,43) y 3,19 (IC 95% 2,63 – 3,86), respectivamente.Conclusión: El virus influenza A(H1N1) pdm09 fue el principal agente identificado en los casos fatales de IRA confirmada por laboratorio durante los años 2009 a 2013, con mayor letalidad en individuos entre 20 y 59 años; 64,7% de los casos fatales presentaron neumonitis. Se debe aclarar si el inicio de antivirales afecta el pronóstico en los casos graves de IRA.
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Cheng Q, Zhao G, Xie L, Wang X. Impacts of age and gender at the risk of underlying medical conditions and death in patients with avian influenza A (H7N9): a meta-analysis study. Ther Clin Risk Manag 2018; 14:1615-1626. [PMID: 30233197 PMCID: PMC6132488 DOI: 10.2147/tcrm.s173834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective The objective of our study was to conduct a series of analyses that examined the impacts of age and gender at the risk of underlying medical conditions (UMCs) and death in patients with influenza A (H7N9). Methods We began by searching for potentially relevant articles in English or Chinese before February 28, 2018. Additionally, we reviewed our own files and reference lists of articles identified by this search. Results The association between death and UMCs was significant in H7N9 patients, with an OR of 1.49 (95% CI: 1.24–1.78). Subgroup analyses showed that having two or more UMCs of any type (OR: 2.24; P=0.044), chronic respiratory diseases (OR: 1.81; P=0.032), and chronic cardiovascular disease (OR: 1.63; P=0.013) had an association with increased fatality in H7N9 patients. Age (60 years or older) [adjusted OR (AOR): 1.86; P=0.032] and gender (male: AOR: 1.68, P=0.006; female: AOR: 1.88, P=0.044) were significantly associated with death in H7N9 patients with UMCs compared to H7N9 patients without any UMC. Stratification analyses found statistically significant increased death in H7N9 patients with UMCs who were 60 years of age and older (AOR: 2.72; P<0.001) and gender (male; AOR=1.64; P=0.033), compared to H7N9 patients without these respective conditions. Conclusion Impacts of age are substantial and significant at the risk of UMCs and death in H7N9 patients. This analysis did not find a significant difference in gender comparisons. Efforts should particularly focus on reducing fatality rates in patients with combined risks from UMCs and other significant impact factor such as age (60 years or older).
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Affiliation(s)
- Qinglin Cheng
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, Hangzhou 310021, China, .,Department of Adolescents and Children Health, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Gang Zhao
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, Hangzhou 310021, China,
| | - Li Xie
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, Hangzhou 310021, China,
| | - Xuchu Wang
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, Hangzhou 310021, China,
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12
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Sun X, Song L, Feng S, Li L, Yu H, Wang Q, Wang X, Hou Z, Li X, Li Y, Zhang Q, Li K, Cui C, Wu J, Qin Z, Wu Q, Chen H. Fatty Acid Metabolism is Associated With Disease Severity After H7N9 Infection. EBioMedicine 2018; 33:218-229. [PMID: 29941340 PMCID: PMC6085509 DOI: 10.1016/j.ebiom.2018.06.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/15/2018] [Accepted: 06/15/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Human infections with the H7N9 virus could lead to lung damage and even multiple organ failure, which is closely associated with a high mortality rate. However, the metabolic basis of such systemic alterations remains unknown. METHODS This study included hospitalized patients (n = 4) with laboratory-confirmed H7N9 infection, healthy controls (n = 9), and two disease control groups comprising patients with pneumonia (n = 9) and patients with pneumonia who received steroid treatment (n = 10). One H7N9-infected patient underwent lung biopsy for histopathological analysis and expression analysis of genes associated with lung homeostasis. H7N9-induced systemic alterations were investigated using metabolomic analysis of sera collected from the four patients by using ultra-performance liquid chromatography-mass spectrometry. Chest digital radiography and laboratory tests were also conducted. FINDINGS Two of the four patients did not survive the clinical treatments with antiviral medication, steroids, and oxygen therapy. Biopsy revealed disrupted expression of genes associated with lung epithelial integrity. Histopathological analysis demonstrated severe lung inflammation after H7N9 infection. Metabolomic analysis indicated that fatty acid metabolism may be inhibited during H7N9 infection. Serum levels of palmitic acid, erucic acid, and phytal may negatively correlate with the extent of lung inflammation after H7N9 infection. The changes in fatty acid levels may not be due to steroid treatment or pneumonia. INTERPRETATION Altered structural and secretory properties of the lung epithelium may be associated with the severity of H7N9-infection-induced lung disease. Moreover, fatty acid metabolism level may predict a fatal outcome after H7N9 virus infection.
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Affiliation(s)
- Xin Sun
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - Lijia Song
- Department of Respiratory Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Shuang Feng
- Department of Clinical Laboratory, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Li Li
- Department of Respiratory Medicine, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Hongzhi Yu
- Department of Respiratory Medicine, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Qiaoxing Wang
- Department of Clinical Laboratory, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Xing Wang
- Department of Respiratory Medicine, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Zhili Hou
- Department of Tuberculosis, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Xue Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - Yu Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - Qiuyang Zhang
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - Kuan Li
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China
| | - Chao Cui
- Department of Thoracic Surgery, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Junping Wu
- Department of Respiratory Medicine, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Zhonghua Qin
- Department of Clinical Laboratory, Tianjin Haihe Hospital, Tianjin 300350, China
| | - Qi Wu
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China; Department of Respiratory Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China; Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin 300350, China.
| | - Huaiyong Chen
- Department of Basic Medicine, Haihe Clinical College of Tianjin Medical University, Tianjin 300070, China; Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin 300350, China.
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13
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Epidemiological and clinical characteristics of humans with avian influenza A (H7N9) infection in Guangdong, China, 2013–2017. Int J Infect Dis 2017; 65:148-155. [DOI: 10.1016/j.ijid.2017.07.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 11/23/2022] Open
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14
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Kang MC, Park HW, Choi DH, Choi YW, Park Y, Sung YC, Lee SW. Plasmacytoid Dendritic Cells Contribute to the Protective Immunity Induced by Intranasal Treatment with Fc-fused Interleukin-7 against Lethal Influenza Virus Infection. Immune Netw 2017; 17:343-351. [PMID: 29093655 PMCID: PMC5662783 DOI: 10.4110/in.2017.17.5.343] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/14/2017] [Accepted: 09/18/2017] [Indexed: 12/01/2022] Open
Abstract
Developing a novel vaccine that can be applied against multiple strains of influenza virus is of utmost importance to human health. Previously, we demonstrated that the intranasal introduction of Fc-fused IL-7 (IL-7-mFc), a long-acting cytokine fusion protein, confers long-lasting prophylaxis against multiple strains of influenza A virus (IAV) by inducing the development of lung-resident memory-like T cells, called TRM-like cells. Here, we further investigated the mechanisms of IL-7-mFc-mediated protective immunity to IAVs. First, we found that IL-7-mFc treatment augments the accumulation of pulmonary T cells in 2 ways: recruiting blood circulating T cells into the lung and expanding T cells at the lung parenchyma. Second, the blockade of T cell migration from the lymph nodes (LNs) with FTY720 treatment was not required for mounting the protective immunity to IAV with IL-7-mFc, suggesting a more important role of IL-7 in T cells in the lungs. Third, IL-7-mFc treatment also recruited various innate immune cells into the lungs. Among these cells, plasmacytoid dendritic cells (pDCs) play an important role in IL-7-mFc-mediated protective immunity through reducing the immunopathology and increasing IAV-specific cytotoxic T lymphocyte (CTL) responses. In summary, our results show that intranasal treatment with IL-7-mFc modulates pulmonary immune responses to IAV, affecting both innate and adaptive immune cells.
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Affiliation(s)
- Moon Cheol Kang
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Han Wook Park
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Dong-Hoon Choi
- Research Institute, Genexine Inc., Korea Bio Park, Seongnam 13488, Korea
| | - Young Woo Choi
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Yunji Park
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Young Chul Sung
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Research Institute, Genexine Inc., Korea Bio Park, Seongnam 13488, Korea.,Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seung-Woo Lee
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
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15
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Venter M, Treurnicht FK, Buys A, Tempia S, Samudzi R, McAnerney J, Jacobs CA, Thomas J, Blumberg L. Risk of Human Infections With Highly Pathogenic H5N2 and Low Pathogenic H7N1 Avian Influenza Strains During Outbreaks in Ostriches in South Africa. J Infect Dis 2017; 216:S512-S519. [PMID: 28934458 DOI: 10.1093/infdis/jix018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background Risk factors for human infection with highly pathogenic (HP) and low-pathogenic (LP) avian influenza (AI) H5N2 and H7N1 were investigated during outbreaks in ostriches in the Western Cape province, South Africa. Methods Serum surveys were conducted for veterinarians, farmworkers, and laboratory and abattoir workers involved in 2 AI outbreaks in the Western Cape province: (1) controlling and culling of 42000 ostriches during (HPAI)H5N2 outbreaks in ostriches (2011) (n = 207); (2) movement control during (LPAI)H7N1 outbreaks in 2012 (n = 66). A third serosurvey was conducted on state veterinarians from across the country in 2012 tasked with disease control in general (n = 37). Antibodies to H5 and H7 were measured by means of hemagglutination inhibition and microneutralization assays, with microneutralization assay titers >40 considered positive. Results Two of 207 (1%) participants were seropositive for H5 and 4 of 207 (2%) for H7 in 2011, compared with 1 of 66 (1.5%) and 8 of 66 (13%) in 2012. Although individuals in all professions tested seropositive, abattoir workers (10 of 97; 10.3%) were significantly more at risk of influenza A(H7N1) infection (P = .001) than those in other professions (2 of 171;1.2%). Among state veterinarians, 4 of 37(11%) were seropositive for H7 and 1 of 37 (2.7%) for H5. Investigations of (LP)H7N1-associated fatalities in wild birds and quarantined exotic birds in Gauteng, AI outbreaks in poultry in KwaZulu-Natal, and ostriches in Western Cape province provide possible exposure events. Conclusion (LPAI)H7N1 strains pose a greater infection-risk than (HPAI)H5N2 strains to persons involved in control of outbreaks in infected birds, with ostrich abattoir workers at highest risk.
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Affiliation(s)
- Marietjie Venter
- Centre for Respiratory Diseases and Meningitis.,Centre for Viral Zoonoses, Department Medical Virology, University of Pretoria
| | | | - Amelia Buys
- Centre for Respiratory Diseases and Meningitis
| | - Stefano Tempia
- Centre for Respiratory Diseases and Meningitis.,Influenza Program, US Centres for Disease Control and Prevention, Pretoria.,Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | | | | | - Charlene A Jacobs
- Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, National Health Laboratory Services, Sandringham.,Western Cape Department of Health, Cape Town, South Africa
| | - Juno Thomas
- Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, National Health Laboratory Services, Sandringham
| | - Lucille Blumberg
- Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, National Health Laboratory Services, Sandringham
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16
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Cao B, Huang Y, She DY, Cheng QJ, Fan H, Tian XL, Xu JF, Zhang J, Chen Y, Shen N, Wang H, Jiang M, Zhang XY, Shi Y, He B, He LX, Liu YN, Qu JM. Diagnosis and treatment of community-acquired pneumonia in adults: 2016 clinical practice guidelines by the Chinese Thoracic Society, Chinese Medical Association. CLINICAL RESPIRATORY JOURNAL 2017; 12:1320-1360. [PMID: 28756639 PMCID: PMC7162259 DOI: 10.1111/crj.12674] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 07/25/2017] [Indexed: 02/05/2023]
Abstract
Community‐acquired pneumonia (CAP) in adults is an infectious disease with high morbidity in China and the rest of the world. With the changing pattern in the etiological profile of CAP and advances in medical techniques in diagnosis and treatment over time, Chinese Thoracic Society of Chinese Medical Association updated its CAP guideline in 2016 to address the standard management of CAP in Chinese adults. Extensive and comprehensive literature search was made to collect the data and evidence for experts to review and evaluate the level of evidence. Corresponding recommendations are provided appropriately based on the level of evidence. This updated guideline covers comprehensive topics on CAP, including aetiology, antimicrobial resistance profile, diagnosis, empirical and targeted treatments, adjunctive and supportive therapies, as well as prophylaxis. The recommendations may help clinicians manage CAP patients more effectively and efficiently. CAP in pediatric patients and immunocompromised adults is beyond the scope of this guideline. This guideline is only applicable for the immunocompetent CAP patients aged 18 years and older. The recommendations on selection of antimicrobial agents and the dosing regimens are not mandatory. The clinicians are recommended to prescribe and adjust antimicrobial therapies primarily based on their local etiological profile and results of susceptibility testing, with reference to this guideline.
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Affiliation(s)
- Bin Cao
- National Clinical Research Center of Respiratory Diseases, Center for Respiratory Diseases, China-Japan Friendship Hospital, Capital Medical University, Beijing 100029, China
| | - Yi Huang
- Department of Respiratory and Critical Care Medicine, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Dan-Yang She
- Department of Respiratory and Critical Care Medicine, Chinese PLA General Hospital, Beijing 100853, China
| | - Qi-Jian Cheng
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China
| | - Hong Fan
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Sichuan 610041, China
| | - Xin-Lun Tian
- Department of Pulmonary Medicine, Peking Union Medical College Hospital, Beijing 100730, China
| | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Jing Zhang
- Department of Respiratory and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu Chen
- Department of Respiratory and Critical Care Medicine, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Ning Shen
- Department of Respiratory Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Hui Wang
- Department of Laboratory Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Mei Jiang
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Xiang-Yan Zhang
- Department of Respiratory and Critical Care Medicine, Guizhou Provincial People's Hospital, Guizhou 550002, China
| | - Yi Shi
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing 210002, China
| | - Bei He
- Department of Respiratory Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Li-Xian He
- Department of Respiratory and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - You-Ning Liu
- Department of Respiratory and Critical Care Medicine, Chinese PLA General Hospital, Beijing 100853, China
| | - Jie-Ming Qu
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China
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17
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Vanderven HA, Liu L, Ana-Sosa-Batiz F, Nguyen TH, Wan Y, Wines B, Hogarth PM, Tilmanis D, Reynaldi A, Parsons MS, Hurt AC, Davenport MP, Kotsimbos T, Cheng AC, Kedzierska K, Zhang X, Xu J, Kent SJ. Fc functional antibodies in humans with severe H7N9 and seasonal influenza. JCI Insight 2017; 2:92750. [PMID: 28679958 DOI: 10.1172/jci.insight.92750] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 05/19/2017] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Both seasonal and novel avian influenza viruses can result in severe infections requiring hospitalization. Anti-influenza antibodies (Abs) with Fc-mediated effector functions, such as Ab-dependent cellular cytotoxicity (ADCC), are of growing interest in control of influenza but have not previously been studied during severe human infections. As such, the objective of this study was to examine Fc-mediated Ab functions in humans hospitalized with influenza infection. METHODS Serum Ab response was studied in subjects hospitalized with either pandemic H7N9 avian influenza virus in China (n = 18) or circulating seasonal influenza viruses in Melbourne, Australia (n = 16). Recombinant soluble Fc receptor dimer ELISAs, natural killer (NK) cell activation assays, and Ab-dependent killing assays with influenza-infected target cells were used to assess the Fc functionality of anti-influenza hemagglutinin (HA) Abs during severe human influenza infection. RESULTS We found that the peak generation of Fc functional HA Abs preceded that of neutralizing Abs for both severe H7N9 and seasonal influenza infections. Subjects who succumbed to complications of H7N9 infection demonstrated reduced HA-specific Fc receptor-binding Abs (in magnitude and breadth) immediately prior to death compared with those who survived. Subjects who recovered from H7N9 and severe seasonal influenza infections demonstrated increased Fc receptor-binding Abs not only against the homologous infecting strain but against HAs from different influenza A subtypes. CONCLUSION Collectively, survivors of severe influenza infection rapidly generate a functional Ab response capable of mediating ADCC against divergent influenza viruses. Broadly binding HA Abs with Fc-mediated functions may be a useful component of protective immunity to severe influenza infection. FUNDING The National Health and Medical Research Council ([NHMRC] grants 1023294, 1041832, and 1071916), the Australian Department of Health, and the joint University of Melbourne/Fudan University International Research and Research Training Fund provided funding for this study.
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Affiliation(s)
- Hillary A Vanderven
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Lu Liu
- Shanghai Public Health Clinical Centre (SPHCC) and Institute of Biomedical Sciences, Key Laboratory of Medical Molecular Virology of the Ministry of Education/Health, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fernanda Ana-Sosa-Batiz
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Thi Ho Nguyen
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Yanmin Wan
- Shanghai Public Health Clinical Centre (SPHCC) and Institute of Biomedical Sciences, Key Laboratory of Medical Molecular Virology of the Ministry of Education/Health, Shanghai Medical College, Fudan University, Shanghai, China
| | - Bruce Wines
- Burnet Institute, Melbourne, Victoria, Australia
| | | | - Danielle Tilmanis
- WHO Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Arnold Reynaldi
- Infection Analytics Program, Kirby Institute for Infection and Immunity, University of New South Wales Australia, Sydney, New South Wales, Australia
| | - Matthew S Parsons
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Aeron C Hurt
- WHO Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Miles P Davenport
- Infection Analytics Program, Kirby Institute for Infection and Immunity, University of New South Wales Australia, Sydney, New South Wales, Australia
| | - Tom Kotsimbos
- Department of Allergy, Immunology and Respiratory Medicine, Alfred Hospital and Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Allen C Cheng
- Infection Prevention and Healthcare Epidemiology Unit, Alfred Health and School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Katherine Kedzierska
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Xiaoyan Zhang
- Shanghai Public Health Clinical Centre (SPHCC) and Institute of Biomedical Sciences, Key Laboratory of Medical Molecular Virology of the Ministry of Education/Health, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jianqing Xu
- Shanghai Public Health Clinical Centre (SPHCC) and Institute of Biomedical Sciences, Key Laboratory of Medical Molecular Virology of the Ministry of Education/Health, Shanghai Medical College, Fudan University, Shanghai, China
| | - Stephen J Kent
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia.,Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Health, Central Clinical School, Monash University, Melbourne, Victoria, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Melbourne, Parkville, Victoria, Australia
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19
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Zhang Y, Liu Q, Wang D, Chen S, Wang X, Wang S. Genotyping and detection of common avian and human origin-influenza viruses using a portable chemiluminescence imaging microarray. SPRINGERPLUS 2016; 5:1871. [PMID: 27822445 PMCID: PMC5080273 DOI: 10.1186/s40064-016-3482-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 10/05/2016] [Indexed: 01/11/2023]
Abstract
Background
Influenza viruses are divided into three types, A, B, and C. Human influenza A and B viruses can cause seasonal epidemics, but influenza C causes only a mild respiratory illness. Influenza A virus can infect various host species. In 2013, human-infectious avian influenza A (H7N9) was first reported in China. By the second week of 2014, there were 210 laboratory-confirmed human cases in the country, and the mortality rate eventually reached 22 %. Rapid and accurate diagnosis of influenza viruses is important for clinical management and epidemiology.
Methods In this assay, a cost-effective chemiluminescence (CL) detection oligonucleotide microarray was developed to genotype and detect avian influenza A (H7N9), avian influenza A (H5N1), 2009 influenza A (H1N1), seasonal influenza A (H1N1), and seasonal influenza A (H3N2). Influenza A viruses and influenza B viruses were also generally detected using this microarray. Results The results of detection of 40 cultivated influenza virus strains showed that the microarray was able to distinguish the subtypes of these influenza viruses very well. The microarray possessed similar or 10 fold higher limit of detection than the real-time RT-PCR method. Sixty-six clinical swab samples were detected using this microarray and verified with real time RT-PCR to evaluate the efficiency of this microarray for clinical testing. Conclusions A reliable CL detection oligonucleotide microarray had been developed to genotype and detected these influenza viruses.
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Affiliation(s)
- Yingjie Zhang
- Department of Pharmacy, 210th Hospital of the Chinese People's Liberation Army, Dalian, 116021 People's Republic of China.,Postdoctoral Research Workstation, 210th Hospital of the Chinese People's Liberation Army, Dalian, 116015 People's Republic of China
| | - Qiqi Liu
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, 100850 People's Republic of China.,Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases of Beijing, Beijing, 100850 People's Republic of China
| | - Dou Wang
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, 100850 People's Republic of China
| | - Suhong Chen
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, 100850 People's Republic of China.,Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases of Beijing, Beijing, 100850 People's Republic of China
| | - Xiaobo Wang
- Department of Pharmacy, 210th Hospital of the Chinese People's Liberation Army, Dalian, 116021 People's Republic of China.,Postdoctoral Research Workstation, 210th Hospital of the Chinese People's Liberation Army, Dalian, 116015 People's Republic of China
| | - Shengqi Wang
- Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing, 100850 People's Republic of China.,Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases of Beijing, Beijing, 100850 People's Republic of China
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20
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Wang H, Xiao X, Lu J, Chen Z, Li K, Liu H, Luo L, Wang M, Yang Z. Factors associated with clinical outcome in 25 patients with avian influenza A (H7N9) infection in Guangzhou, China. BMC Infect Dis 2016; 16:534. [PMID: 27716101 PMCID: PMC5048464 DOI: 10.1186/s12879-016-1840-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 09/16/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Guangzhou reported its first laboratory-confirmed case of influenza A (H7N9) on January 10, 2014. A total of 25 cases were reported from the first wave of the epidemic until April 8, 2014. The fatality rate was much higher than in previous reports. The objective of the current work was to describe the clinical and epidemiological characteristics of A (H7N9) patients in Guangzhou and explore possible reasons for the high fatality rate. METHODS Clinical and epidemiological information regarding A (H7N9) cases in Guangzhou was collected through review of medical records and field research. Data regarding clinical and laboratory features, treatment, and outcomes were extracted. RESULTS Of the 25 patients, 84 % (21/25) had one or more underlying diseases. Fifteen patients (60.0 %) developed moderate to severe acute respiratory distress syndrome (ARDS), and 14 (56 %) died of the ARDS or multiorgan failure. Patients with longer delay between onset of illness and initiation of oseltamivir treatment were more likely to develop ARDS. Elevated C-creative protein, aspartate aminotransferase, creatine kinase, and lymphocytopenia predicted a higher risk of developing ARDS. CONCLUSIONS The presence of underlying diseases and clinical complications predicted poor clinical outcome. Early oseltamivir treatment was associated with a reduced risk of developing ARDS.
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Affiliation(s)
- Hui Wang
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - XinCai Xiao
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - Jianyun Lu
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - Zongqiu Chen
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - Kuibiao Li
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - Hui Liu
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - Lei Luo
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - Ming Wang
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China
| | - ZhiCong Yang
- Guangzhou Centre for Disease Control and Prevention, No. 1, Qide Rd, Jiahe, Baiyun, Guangzhou, 510440, China.
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Zhou L, Ren R, Ou J, Kang M, Wang X, Havers F, Huo X, Liu X, Sun Q, He Y, Liu B, Wu S, Wang Y, Sui H, Zhang Y, Tang S, Chang C, Xiang L, Wang D, Zhao S, Zhou S, Chen T, Xiang N, Greene CM, Zhang Y, Shu Y, Feng Z, Li Q. Risk Factors for Influenza A(H7N9) Disease in China, a Matched Case Control Study, October 2014 to April 2015. Open Forum Infect Dis 2016; 3:ofw182. [PMID: 27704029 PMCID: PMC5047420 DOI: 10.1093/ofid/ofw182] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 08/23/2016] [Indexed: 11/16/2022] Open
Abstract
Background. Human infections with avian influenza A(H7N9) virus have been associated with exposure to poultry and live poultry markets (LPMs). We conducted a case-control study to identify additional and more specific risk factors. Methods. Cases were laboratory-confirmed A(H7N9) infections in persons in China reported from October 1, 2014 to April 30, 2015. Poultry workers, those with insufficient data, and those refusing participation were excluded. We matched up to 4 controls per case by sex, age, and residential community. Using conditional logistic regression, we examined associations between A(H7N9) infection and potential risk factors. Results. Eighty-five cases and 334 controls were enrolled with similar demographic characteristics. Increased risk of A(H7N9) infection was associated with the following: visiting LPMs (adjusted odds ratio [aOR], 6.3; 95% confidence interval [CI], 2.6–15.3), direct contact with live poultry in LPMs (aOR, 4.1; 95% CI, 1.1–15.6), stopping at a live poultry stall when visiting LPMs (aOR, 2.7; 95% CI, 1.1–6.9), raising backyard poultry at home (aOR, 7.7; 95% CI, 2.0–30.5), direct contact with backyard poultry (aOR, 4.9; 95% CI, 1.1–22.1), and having ≥1 chronic disease (aOR, 3.1; 95% CI, 1.5–6.5). Conclusions. Our study identified raising backyard poultry at home as a risk factor for illness with A(H7N9), suggesting the need for enhanced avian influenza surveillance in rural areas.
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Affiliation(s)
- Lei Zhou
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Ruiqi Ren
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Jianming Ou
- Fujian Center for Disease Control and Prevention , Fuzhou
| | - Min Kang
- Guangdong Center for Disease Control and Prevention , Guangzhou
| | - Xiaoxiao Wang
- Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Fiona Havers
- United States Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Xiang Huo
- Jiangsu Center for Disease Control and Prevention , Nanjing
| | - Xiaoqing Liu
- Jiangxi Center for Disease Control and Prevention , Nanchang
| | - Qianlai Sun
- Hunan Center for Disease Control and Prevention , Changsha
| | - Yongchao He
- Shanghai Center for Disease Control and Prevention
| | - Bo Liu
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Shenggen Wu
- Fujian Center for Disease Control and Prevention , Fuzhou
| | - Yali Wang
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Haitian Sui
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Yongjie Zhang
- Chinese Field Epidemiology Training Program , Chinese Center for Disease Control and Prevention , Beijing
| | - Shaopei Tang
- Chinese Field Epidemiology Training Program , Chinese Center for Disease Control and Prevention , Beijing
| | - Caiyun Chang
- Chinese Field Epidemiology Training Program , Chinese Center for Disease Control and Prevention , Beijing
| | - Lunhui Xiang
- Chinese Field Epidemiology Training Program , Chinese Center for Disease Control and Prevention , Beijing
| | - Dong Wang
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Shiguang Zhao
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Suizan Zhou
- United States Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Tao Chen
- National Influenza Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Nijuan Xiang
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Carolyn M Greene
- United States Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Yanping Zhang
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Yuelong Shu
- National Influenza Center , Chinese Center for Disease Control and Prevention , Beijing
| | - Zijian Feng
- Chinese Center for Disease Control and Prevention , Beijing , China
| | - Qun Li
- Public Health Emergency Center , Chinese Center for Disease Control and Prevention , Beijing
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Sha J, Chen X, Ren Y, Chen H, Wu Z, Ying D, Zhang Z, Liu S. Differences in the epidemiology and virology of mild, severe and fatal human infections with avian influenza A (H7N9) virus. Arch Virol 2016; 161:1239-59. [PMID: 26887968 PMCID: PMC7101734 DOI: 10.1007/s00705-016-2781-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 01/30/2016] [Indexed: 11/04/2022]
Abstract
A novel avian influenza A (H7N9) virus caused 5-10 % mild and 30.5 % fatal human infections as of December 10, 2015. In order to investigate the reason for the higher rate of fatal outcome of this infection, this study compared the molecular epidemiology and virology of avian influenza A (H7N9) viruses from mild (N = 14), severe (N = 50) and fatal (N = 35) cases, as well as from non-human hosts (N = 73). The epidemiological results showed that the average age of the people in the mild, severe and fatal groups was 27.6, 52 and 62 years old, respectively (p < 0.001). Males accounted for 42.9 % (6/14), 58.0 % (29/50), and 74.3 % (26/35) of cases in the mild, severe and fatal group respectively (p = 0.094). Median days from onset to start of antiviral treatment were 2, 5 and 7 days in the mild, severe and fatal group, respectively (p = 0.002). The median time from onset to discharge/death was 12, 40 and 19 days in the mild, severe and fatal group, respectively (p < 0.001). Analysis of whole genome sequences showed that PB2 (E627K), NA (R294K) and PA (V100A) mutations were markedly associated with an increased fatality rate, while HA (N276D) and PB2 (N559T) mutations were clearly related to mild cases. There were no differences in the genotypes, adaptation to mammalian hosts, and genetic identity between the three types of infection. In conclusion, advanced age and delayed confirmation of diagnosis and antiviral intervention were risk factors for death. Furthermore, PB2 (E627K), NA (R294K) and PA (V100A) mutations might contribute to a fatal outcome in human H7N9 infection.
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Affiliation(s)
- Jianping Sha
- Department of Gastroenterology, The 421 Hospital of Chinese People's Liberation Army, Guangzhou, People's Republic of China
| | - Xiaowen Chen
- Department of Senior Cadres, The 421 Hospital of Chinese People's Liberation Army, Guangzhou, People's Republic of China
| | - Yajin Ren
- Pharmacy Department, The 421 Hospital of Chinese People's Liberation Army, Guangzhou, People's Republic of China
| | - Haijun Chen
- Department of Infectious Diseases, Jinhua Municipal Central Hospital, Jinhua, People's Republic of China
| | - Zuqun Wu
- Department of Respiratory Medicine, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, People's Republic of China
| | - Dong Ying
- Department of Oncology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Zhiruo Zhang
- School of Public Health, Shanghai Jiao Tong University, 227 South Chongqing Road, Huangpu District, Shanghai, 200025, People's Republic of China.
| | - Shelan Liu
- Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, 3399 Binsheng Road, Binjiang District, Hangzhou, 310051, Zhejiang Province, People's Republic of China.
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Chen J, Cui G, Lu C, Ding Y, Gao H, Zhu Y, Wei Y, Wang L, Uede T, Li L, Diao H. Severe Infection With Avian Influenza A Virus is Associated With Delayed Immune Recovery in Survivors. Medicine (Baltimore) 2016; 95:e2606. [PMID: 26844470 PMCID: PMC4748887 DOI: 10.1097/md.0000000000002606] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Human infection with avian influenza A virus (H7N9) is a concern because of the mortality rate. Previously, we characterized immunological responses during active infection with it and reported evidence of impaired antigen-presenting capability, particularly in severely affected individuals. Here we describe an investigation of immunological responses during a 1-year follow-up of survivors of H7N9 infection. Survivors of H7N9 infection were classified as having had mild (n = 42) or severe infection (n = 26). Their immune status, including human leukocyte antigen-DR expression on monocytes, and their ability to mount cytokine responses were assessed at 1, 3, and 12 months postinfection.The total lymphocyte count and the percentages of different types of lymphocytes had normalized by 1 month postinfection. However, there was evidence of ongoing impairment of immune responses in those who had had severe infection. This included reduced human leukocyte antigen-DR expression on CD14 monocytes, reduced interferon-γ production by T cells, and higher plasma levels of the matrix metalloproteinases 2, 3, and 9. By 3 months postinfection, these had all normalized.After severe H7N9 infection, recovery of the antigen-presenting capability of monocytes and T-cell responses are delayed. This may lead to an increased vulnerability to secondary bacterial infections.
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Affiliation(s)
- Jianing Chen
- From the State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China (JC, GC, CL, YD, HG, YZ, YW, LW, LL, HD); and Molecular Immunology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan (TU)
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Intranasal Introduction of Fc-Fused Interleukin-7 Provides Long-Lasting Prophylaxis against Lethal Influenza Virus Infection. J Virol 2015; 90:2273-84. [PMID: 26656713 DOI: 10.1128/jvi.02768-15] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 12/03/2015] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Influenza A virus (IAV) infection frequently causes hospitalization and mortality due to severe immunopathology. Annual vaccination and antiviral drugs are the current countermeasures against IAV infection, but they have a limited efficacy against new IAV variants. Here, we show that intranasal pretreatment with Fc-fused interleukin-7 (IL-7-mFc) protects mice from lethal IAV infections. The protective activity of IL-7-mFc relies on transcytosis via neonatal Fc receptor (FcRn) in the lung and lasts for several weeks. Introduction of IL-7-mFc alters pulmonary immune environments, leading to recruitment of T cells from circulation and their subsequent residency as tissue-resident memory-like T (TRM-like) cells. IL-7-mFc-primed pulmonary TRM-like cells contribute to protection upon IAV infection by dual modes. First, TRM-like cells, although not antigen specific but polyclonal, attenuate viral replication at the early phase of IAV infection. Second, TRM-like cells augment expansion of IAV-specific cytotoxic T lymphocytes (CTLs), in particular at the late phase of infection, which directly control viruses. Thus, accelerated viral clearance facilitated by pulmonary T cells, which are either antigen specific or not, alleviates immunopathology in the lung and mortality from IAV infection. Depleting a subset of pulmonary T cells indicates that both CD4 and CD8 T cells contribute to protection from IAV, although IL-7-primed CD4 T cells have a more prominent role. Collectively, we propose intranasal IL-7-mFc pretreatment as an effective means for generating protective immunity against IAV infections, which could be applied to a potential prophylaxis for influenza pandemics in the future. IMPORTANCE The major consequence of a highly pathogenic IAV infection is severe pulmonary inflammation, which can result in organ failure and death at worst. Although vaccines for seasonal IAVs are effective, frequent variation of surface viral proteins hampers development of protective immunity. In this study, we demonstrated that intranasal IL-7-mFc pretreatment protected immunologically naive mice from lethal IAV infections. Intranasal pretreatment with IL-7-mFc induced an infiltration of T cells in the lung, which reside as effector/memory T cells with lung-retentive markers. Those IL-7-primed pulmonary T cells contributed to development of protective immunity upon IAV infection, reducing pulmonary immunopathology while increasing IAV-specific cytotoxic T lymphocytes. Since a single treatment with IL-7-mFc was effective in the protection against multiple strains of IAV for an extended period of time, our findings suggest a possibility that IL-7-mFc treatment, as a potential prophylaxis, can be developed for controlling highly pathogenic IAV infections.
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25
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Amoah S, Cao W, Ranjan P, Greer P, Shieh WJ, Zaki SR, Katz JM, Sambhara S, Gangappa S. Increased Dietary Salt Intake Does Not Influence Influenza A Virus-Induced Disease Severity in Mice. Viral Immunol 2015; 28:532-7. [PMID: 26284685 PMCID: PMC5737935 DOI: 10.1089/vim.2015.0037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Influenza viruses are pathogens of significant public health importance. The influence of nutritional status on severity of disease has become increasingly recognized. In particular, high dietary salt intake has been linked to cardiovascular disease, but the effects on infectious diseases have not been studied. This study investigated the impact on influenza-induced morbidity and mortality in mice fed isocaloric diets containing 10-fold increments of sodium by altering the salt levels. Following infection, despite higher levels of IFN-gamma cytokine in the lung as well as virus-neutralizing antibody in the serum of mice fed the lowest salt level, the amounts of dietary salt intake had no substantial impact on the disease severity or the ability to respond immunologically to the infection.
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Affiliation(s)
- Samuel Amoah
- Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization and Respiratory Diseases, Atlanta, Georgia
| | - Weiping Cao
- Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization and Respiratory Diseases, Atlanta, Georgia
| | - Priya Ranjan
- Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization and Respiratory Diseases, Atlanta, Georgia
| | - Patricia Greer
- Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Wun-Ju Shieh
- Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Sherif R. Zaki
- Division of High Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jacqueline M. Katz
- Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization and Respiratory Diseases, Atlanta, Georgia
| | - Suryaprakash Sambhara
- Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization and Respiratory Diseases, Atlanta, Georgia
| | - Shivaprakash Gangappa
- Immunology and Pathogenesis Branch, Influenza Division, National Center for Immunization and Respiratory Diseases, Atlanta, Georgia
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26
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Cheng QL, Ding H, Sun Z, Kao QJ, Yang XH, Huang RJ, Wen YY, Wang J, Xie L. Retrospective study of risk factors for mortality in human avian influenza A(H7N9) cases in Zhejiang Province, China, March 2013 to June 2014. Int J Infect Dis 2015; 39:95-101. [PMID: 26376223 DOI: 10.1016/j.ijid.2015.09.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 08/18/2015] [Accepted: 09/07/2015] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The influenza A(H7N9) virus causes a serious disease that threatens human health. Fatalities associated with human infections caused by this virus are of great public health concern; however, the possible risk factors are not yet fully known. METHODS A stratified sampling method, incorporating household income levels and a random number table method, was used to select laboratory-confirmed A(H7N9) cases for this study. Eighty-five patients were selected randomly from 139 laboratory-confirmed A(H7N9) cases occurring in Zhejiang Province between March 1, 2013 and June 30, 2014. Data were collected using a standard method. To test the statistical significance among discrete variables, univariate analyses were used to compare two groups. The Kaplan-Meier product-limit method was used to analyze the patient survival fraction. The Cox proportional hazards regression model was used to analyze all variables with p ≤ 0.05 in the univariate analysis. Lastly, a stepwise procedure was used to construct a final model with a significance level of p > 0.10 for removal and p<0.05 for re-entry. RESULTS A total of 85 patients with H7N9 virus infection were identified. Among these, 30 (35.29%) died. In the univariate analysis, the following factors were associated with a high risk of influenza A(H7N9) case fatality: age ≥ 60 years (p=0.008), low education level (p=0.030), chronic diseases (p=0.029), poor hand hygiene (p=0.010), time from illness onset to the first medical visit (p=0.029) and to intensive care unit admission (p=0.008), an incubation period of ≤ 5 days (p=0.039), a peak C-reactive protein ≥ 120 mg/l (p=0.012), increased initial neutrophil count (p=0.020), decreased initial lymphocyte count (p=0.021), and initial infection of both lungs (p=0.003). Multivariate analysis confirmed that the independent predictors of H7N9 virus infection mortality in Zhejiang, China were hand hygiene (hazard ratio (HR) 5.163, 95% confidence interval (CI) 1.164-22.661), age (HR 1.042, 95% CI 1.007-1.076), and peak CRP (HR 1.009, 95% CI 1.002-1.016). CONCLUSIONS Improvements in immunity, early case identification and treatment, and personal protection measures are key to addressing the high human avian influenza A(H7N9) case fatality rate.
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Affiliation(s)
- Qing-Lin Cheng
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China; Department of Adolescents and Children Health, School of Public Health, Medical College of Soochow University, Suzhou 215123, China
| | - Hua Ding
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Zhou Sun
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Qing-Jun Kao
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Xu-Hui Yang
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Ren-Jie Huang
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Yuan-Yuan Wen
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Jing Wang
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China
| | - Li Xie
- Division of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, 1 Mingshi Road, Hangzhou 310021, China.
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27
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Huo X, Xu K, Dai Q, Qi X, Yu H, Bao C. Age and gender adjusted comparison of clinical features between severe cases infected with H7N9 and H1N1pdm influenza A in Jiangsu Province, China. PLoS One 2015; 10:e0120999. [PMID: 25815732 PMCID: PMC4376887 DOI: 10.1371/journal.pone.0120999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 02/09/2015] [Indexed: 11/18/2022] Open
Abstract
Background Influenza H7N9 and H1N1pdm can cause severe human infections. It is important to investigate the distinguishing clinical features between these two diseases. Several studies have compared the differences in general, however, age and gender adjusted comparisons may be more useful and informative to the health professionals. Methods A total of 184 severe H1N1pdm patients and 37 severe H7N9 patients from Jiangsu Province were included in this analysis to perform age and gender adjusted comparison of clinical features. Results After adjusting age and gender, no significant differences in chronic medical conditions or treatment were found between severely ill patients with H7N9 and H1N1pdm. Severely ill patients with H7N9 had significantly longer interval from onset of illness to neuraminidase inhibitor treatment and to death. They were more likely to have complications such as acute respiratory distress syndrome (ARDS), liver and renal dysfunctions, and had a significantly higher risk of death. Conclusion Our results suggests that age and gender should be adjusted as important confounding factors when comparing the clinical features between severe H7N9 and H1N1pdm patients to avoid any misunderstanding regarding the differences between these two diseases particularly in terms of clinical severity and prognosis.
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Affiliation(s)
- Xiang Huo
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China, 210009
| | - Ke Xu
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China, 210009
| | - Qigang Dai
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China, 210009
| | - Xian Qi
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China, 210009
| | - Huiyan Yu
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China, 210009
| | - Changjun Bao
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China, 210009
- * E-mail:
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28
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Watanabe T, Watanabe S, Maher EA, Neumann G, Kawaoka Y. Pandemic potential of avian influenza A (H7N9) viruses. Trends Microbiol 2014; 22:623-31. [PMID: 25264312 DOI: 10.1016/j.tim.2014.08.008] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/21/2014] [Accepted: 08/26/2014] [Indexed: 12/30/2022]
Abstract
Avian influenza viruses rarely infect humans, but the recently emerged avian H7N9 influenza viruses have caused sporadic infections in humans in China, resulting in 440 confirmed cases with 122 fatalities as of 16 May 2014. In addition, epidemiologic surveys suggest that there have been asymptomatic or mild human infections with H7N9 viruses. These viruses replicate efficiently in mammals, show limited transmissibility in ferrets and guinea pigs, and possess mammalian-adapting amino acid changes that likely contribute to their ability to infect mammals. In this review, we summarize the characteristic features of the novel H7N9 viruses and assess their pandemic potential.
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Affiliation(s)
- Tokiko Watanabe
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 575 Science Drive, Madison, WI 53711, USA; ERATO Infection-Induced Host Responses Project, Japan Science and Technology Agency, Saitama 332-0012, Japan; Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Shinji Watanabe
- ERATO Infection-Induced Host Responses Project, Japan Science and Technology Agency, Saitama 332-0012, Japan; Laboratory of Veterinary Microbiology, Department of Veterinary Sciences, University of Miyazaki, Miyazaki, 889-2192, Japan
| | - Eileen A Maher
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 575 Science Drive, Madison, WI 53711, USA
| | - Gabriele Neumann
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 575 Science Drive, Madison, WI 53711, USA
| | - Yoshihiro Kawaoka
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 575 Science Drive, Madison, WI 53711, USA; ERATO Infection-Induced Host Responses Project, Japan Science and Technology Agency, Saitama 332-0012, Japan; Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan; Department of Special Pathogens, International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo 108-8639, Japan.
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29
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Zumla A, Al-Tawfiq JA, Enne VI, Kidd M, Drosten C, Breuer J, Muller MA, Hui D, Maeurer M, Bates M, Mwaba P, Al-Hakeem R, Gray G, Gautret P, Al-Rabeeah AA, Memish ZA, Gant V. Rapid point of care diagnostic tests for viral and bacterial respiratory tract infections--needs, advances, and future prospects. THE LANCET. INFECTIOUS DISEASES 2014; 14:1123-1135. [PMID: 25189349 PMCID: PMC7106435 DOI: 10.1016/s1473-3099(14)70827-8] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Respiratory tract infections rank second as causes of adult and paediatric morbidity and mortality worldwide. Respiratory tract infections are caused by many different bacteria (including mycobacteria) and viruses, and rapid detection of pathogens in individual cases is crucial in achieving the best clinical management, public health surveillance, and control outcomes. Further challenges in improving management outcomes for respiratory tract infections exist: rapid identification of drug resistant pathogens; more widespread surveillance of infections, locally and internationally; and global responses to infections with pandemic potential. Developments in genome amplification have led to the discovery of several new respiratory pathogens, and sensitive PCR methods for the diagnostic work-up of these are available. Advances in technology have allowed for development of single and multiplexed PCR techniques that provide rapid detection of respiratory viruses in clinical specimens. Microarray-based multiplexing and nucleic-acid-based deep-sequencing methods allow simultaneous detection of pathogen nucleic acid and multiple antibiotic resistance, providing further hope in revolutionising rapid point of care respiratory tract infection diagnostics.
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Affiliation(s)
- Alimuddin Zumla
- Division of Infection and Immunity, University College London, London, UK; NIHR Biomedical Research Center, University College London Hospitals, London, UK; Department of Medical Microbiology, University College London Hospitals NHS Foundation Trust, London, UK; Global Center for Mass Gatherings Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia; UNZA-UCLMS Research and Training Project, University Teaching Hospital, Lusaka, Zambia.
| | | | - Virve I Enne
- Division of Infection and Immunity, University College London, London, UK
| | - Mike Kidd
- Division of Infection and Immunity, University College London, London, UK; Department of Medical Microbiology, University College London Hospitals NHS Foundation Trust, London, UK
| | - Christian Drosten
- Institute of Virology, University of Bonn Medical Centre, Bonn, Germany
| | - Judy Breuer
- Division of Infection and Immunity, University College London, London, UK; NIHR Biomedical Research Center, University College London Hospitals, London, UK; Department of Medical Microbiology, University College London Hospitals NHS Foundation Trust, London, UK
| | - Marcel A Muller
- Institute of Virology, University of Bonn Medical Centre, Bonn, Germany
| | - David Hui
- Division of Respiratory Medicine and Stanley Ho Center for emerging Infectious Diseases, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong
| | - Markus Maeurer
- Therapeutic Immunology, Departments of Laboratory Medicine and Microbiology, Tumour and Cell Biology, Karolinska Institute, Stockholm, Sweden
| | - Matthew Bates
- Division of Infection and Immunity, University College London, London, UK; UNZA-UCLMS Research and Training Project, University Teaching Hospital, Lusaka, Zambia
| | - Peter Mwaba
- UNZA-UCLMS Research and Training Project, University Teaching Hospital, Lusaka, Zambia
| | - Rafaat Al-Hakeem
- Global Center for Mass Gatherings Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia
| | - Gregory Gray
- Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA
| | - Philippe Gautret
- Assistance Publique Hôpitaux de Marseille, CHU Nord, Pôle Infectieux, Institut Hospitalo-Universitaire Méditerranée Infection & Aix Marseille Université, Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes (URMITE), Marseille, France
| | - Abdullah A Al-Rabeeah
- Global Center for Mass Gatherings Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia
| | - Ziad A Memish
- Global Center for Mass Gatherings Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia; Al-Faisal University, Riyadh, Saudi Arabia
| | - Vanya Gant
- Department of Medical Microbiology, University College London Hospitals NHS Foundation Trust, London, UK
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