Rouba Sayegh, Li Tang, Ki Wook Yun, Zhaohui Xu, Sarah A Marzec, Osama El Assal, Amy L Leber, Kathy Everhart, Sara Mertz, Ankita Desai, Daniel M Cohen, Sherman J Alter, Lilliam Ambroggio, Todd A Florin, Meghan Keaton, Samir S Shah, Richard M Ruddy, Rebecca Wallihan, Asuncion Mejias, Octavio Ramilo
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引用次数: 0
Abstract
Background: Community-acquired pneumonia (CAP) is a leading cause of morbidity and mortality in children. Assessing disease severity and etiology remains challenging in the clinical setting. The objective of this study was to identify mucosal biomarkers that could potentially assist with patient classification.
Methods: We analyzed mucosal concentrations of cytokines in nasopharyngeal samples obtained from a convenience sample of 182 children with CAP and 26 matched healthy controls. Pathogens were identified by cultures and molecular assays. Severe disease was defined by hospital stay ≥ 3 days, and/or PICU admission. Data were analyzed according to identified pathogens and disease severity.
Results: Children with CAP and detected atypical bacteria had significantly higher concentrations of MCP-2, IFN-γ and CXCL10 among others compared with those with typical bacteria. Children with influenza virus had significantly higher concentrations of MCP-2, CXCL10, CXCL11, CX3CL1, and IFN-γ than those with typical bacteria. Additionally, children with severe CAP had significantly higher concentrations of CCL23 than children with mild/moderate disease, irrespective of the pathogen(s) identified.
Conclusions: We identified differences in mucosal concentrations of inflammatory and antiviral cytokines in children with CAP according to disease severity and detected pathogens. Mucosal biomarkers represent a promising approach to help assessing disease severity and etiology.
期刊介绍:
Published continuously since 1904, The Journal of Infectious Diseases (JID) is the premier global journal for original research on infectious diseases. The editors welcome Major Articles and Brief Reports describing research results on microbiology, immunology, epidemiology, and related disciplines, on the pathogenesis, diagnosis, and treatment of infectious diseases; on the microbes that cause them; and on disorders of host immune responses. JID is an official publication of the Infectious Diseases Society of America.