Influence of Viral Infection on the Relationships Between Airway Cytokines and Lung Function in Asthmatic Children
-
2018/11/21
-
Details
-
Personal Author:
-
Description:Background: Few longitudinal studies examine inflammation and lung function in asthma. We sought to determine the cytokines that reduce airflow, and the influence of respiratory viral infections on these relationships. Methods: Children underwent home collections of nasal lavage during scheduled surveillance periods and self-reported respiratory illnesses. We studied 53 children for one year, analyzing 392 surveillance samples and 203 samples from 85 respiratory illnesses. Generalized estimated equations were used to evaluate associations between nasal lavage biomarkers (7 mRNAs, 10 proteins), lung function and viral infection. Results: As anticipated, viral infection was associated with increased cytokines and reduced FVC and FEV1. However, we found frequent and strong interactions between biomarkers and virus on lung function. For example, in the absence of viral infection, CXCL10 mRNA, MDA5 mRNA, CXCL10, IL-4, IL-13, CCL4, CCL5, CCL20 and CCL24 were negatively associated with FVC. In contrast, during infection, the opposite relationship was frequently found, with IL-4, IL-13, CCL5, CCL20 and CCL24 levels associated with less severe reductions in both FVC and FEV1. Conclusions: In asthmatic children, airflow obstruction is driven by specific pro-inflammatory cytokines. In the absence of viral infection, higher cytokine levels are associated with decreasing lung function. However, with infection, there is a reversal in this relationship, with cytokine abundance associated with reduced lung function decline. While nasal samples may not reflect lower airway responses, these data suggest that some aspects of the inflammatory response may be protective against viral infection. This study may have ramifications for the treatment of viral-induced asthma exacerbations. [Description provided by NIOSH]
-
Subjects:
-
Keywords:
-
ISSN:1465-9921
-
Document Type:
-
Funding:
-
Genre:
-
Place as Subject:
-
CIO:
-
Topic:
-
Location:
-
Volume:19
-
NIOSHTIC Number:nn:20055193
-
Citation:Respir Res 2018 Nov; 19:228
-
Contact Point Address:Marc B. Hershenson, Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, 1150 W. Medical Center Dr., Building MSRB2, Room 3570B, Ann Arbor, MI 48109-5688, USA
-
Email:mhershen@umich.edu
-
Federal Fiscal Year:2019
-
Performing Organization:University of Michigan, Ann Arbor
-
Peer Reviewed:True
-
Start Date:20050701
-
Source Full Name:Respiratory Research
-
End Date:20280630
-
Collection(s):
-
Main Document Checksum:urn:sha-512:828e96aea190397902c01de2b6ec6a3e1fa78925da43e1234758c38c5aaaf98256b328209e266b4d0d9bb16853daddddf26eeb918536561b3bf5956437e9f7be
-
Download URL:
-
File Type:
ON THIS PAGE
CDC STACKS serves as an archival repository of CDC-published products including
scientific findings,
journal articles, guidelines, recommendations, or other public health information authored or
co-authored by CDC or funded partners.
As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
You May Also Like