Nasopharyngeal Protein Biomarkers of Acute Respiratory Virus Infection
نویسندگان
چکیده
Infection of respiratory mucosa with viral pathogens triggers complex immunologic events in the affected host. We sought to characterize this response through proteomic analysis of nasopharyngeal lavage in human subjects experimentally challenged with influenza A/H3N2 or human rhinovirus, and to develop targeted assays measuring peptides involved in this host response allowing classification of acute respiratory virus infection. Unbiased proteomic discovery analysis identified 3285 peptides corresponding to 438 unique proteins, and revealed that infection with H3N2 induces significant alterations in protein expression. These include proteins involved in acute inflammatory response, innate immune response, and the complement cascade. These data provide insights into the nature of the biological response to viral infection of the upper respiratory tract, and the proteins that are dysregulated by viral infection form the basis of signature that accurately classifies the infected state. Verification of this signature using targeted mass spectrometry in independent cohorts of subjects challenged with influenza or rhinovirus demonstrates that it performs with high accuracy (0.8623 AUROC, 75% TPR, 97.46% TNR). With further development as a clinical diagnostic, this signature may have utility in rapid screening for emerging infections, avoidance of inappropriate antibacterial therapy, and more rapid implementation of appropriate therapeutic and public health strategies.
منابع مشابه
Nasopharyngeal gene expression, a novel approach to study the course of respiratory syncytial virus infection.
Respiratory syncytial virus (RSV) causes mild infections in the vast majority of children. However, in some cases, it causes severe disease, such as bronchiolitis and pneumonia. Development of severe RSV infection is determined by the host response. Therefore, the main aim of this study was to identify biomarkers associated with severe RSV infection. To identify biomarkers, nasopharyngeal gene ...
متن کاملنقش ویروس های سن سی شیال تنفسی و آنفلوآنزا در عفونت های حاد مجاری تنفسی تحتانی کودکان استان مازندران در سال 1381
Background and purpose: The acute lower respiratory tract infective agents in children are different. The rate of their role in causing infection differs with the age of patients, season, geographical areas and diagnostic methods. The aim of this study is to determine the rate of the role of respiratory syncytial and influenza viruses in Mazandaranian children infected with acute lower res...
متن کاملتعیین فراوانی عفونت ویروسی پاراآنفلوآنزا به روش ایمونوفلوئورسانس در عفونتهای حاد تنفسی
Background: Acute respiratory tract infections, both bacterial and viral, cause 4.5 million childhood deaths worldwide, most of which occur in developing countries. Parainfluenza viruses, of the paramyxoviridae family, are among the common causes of acute respiratory infections, giving rise to 30% of respiratory infections in children before school age. The four parainfluenza viruses that cause...
متن کاملPrevalence of Respiratory Syncytial Virus, Adenovirus and Rhinovirus in Patients with flu-like symptoms Admitted to Mazandaran Province Health Centers in north of Iran – a cross–sectional study
Background: The main viral causes of acute respiratory diseases (ARDs) include influenza viruses A and B, respiratory syncytial virus (RSV), adenovirus (ADV), rhinovirus, and parainfluenza viruses (PIV). This study aimed to investigate the prevalence of respiratory RSV, ADV and rhinovirus in patients with flu-like symptoms admitted to Mazandaran province health centers in north of Iran. Metho...
متن کاملInfluenza A virus among the hospitalized young children with acute respiratory infection. Is influenza A co infected with respiratory syncytial virus?
Background: Both influenza A virus (IAV) and respiratory syncytial virus (RSV) cause acute respiratory infection (ARI) in infants and young children. This study was conducted to determine Influenza A virus and its co infection with RSV among the hospitalized children with ARI. Methods: A total of 153 throat samples of the hospitalized young children aged between below one year and 5 years with...
متن کامل