Comparison of Nasal Cytokine Profiles of Human Metapneumovirus and Respiratory Syncytial Virus
Overview
Affiliations
Background: Human metapneumovirus (hMPV) and respiratory syncytial virus (RSV) share some epidemiological and clinical characteristics; however, few studies have examined the mechanisms by which these viruses induce airway inflammation.
Objective: This study was undertaken to compare cytokine profiles in hMPV and RSV patients to investigate possible differences in inflammatory pathways.
Methods: Nasopharyngeal aspirate specimens were collected from 1,008 pediatric patients hospitalized for acute lower respiratory tract infection with wheezing and 20 normal healthy controls. Patients were tested for 7 common respiratory viruses then divided into hMPV (n = 35) and RSV groups (n = 67). T helper (Th) 1 (interferon [IFN]-γ), Th2 (interleukin [IL]-4, eotaxin) and Th17 (IL-1β, IL-6) cytokine profiles were analyzed in the 3 groups.
Results: IFN-γ and IL-2 levels were significantly increased in the hMPV and RSV groups compared to the control group ( < 0.0001 and < 0.0001, respectively). IL-4 levels were significantly higher in the RSV group compared to the hMPV and control groups ( = 0.0003 and < 0.0001, respectively). Eotaxin levels showed a tendency to be higher in the RSV group compared to the hMPV group ( = 0.0580), and significantly higher compared to the control group ( < 0.0001). IL-1β levels were significantly higher in the hMPV compared to the RSV group ( < 0.0001), and IL-6 levels were significantly higher in the hMPV group compared to the control group ( < 0.0001).
Conclusion: Our results suggest that hMPV and RSV have different inflammatory mechanisms. hMPV induces airway inflammation by the Th17 pathway through release of IL-1β and IL-6, whereas RSV acts through the Th2 pathway.
Interleukin-1β promotes human metapneumovirus replication via activating the cGAS-STING pathway.
Wu G, Zhang Y, Niu L, Hu Y, Yang Y, Zhao Y Virus Res. 2024; 343:199344.
PMID: 38431054 PMC: 10982080. DOI: 10.1016/j.virusres.2024.199344.
Immunologic, genetic, and ecological interplay of factors involved in allergic diseases.
Falcon R, Caoili S Front Allergy. 2023; 4:1215616.
PMID: 37601647 PMC: 10435091. DOI: 10.3389/falgy.2023.1215616.
The Binary Model of Chronic Diseases Applied to COVID-19.
Elkoshi Z Front Immunol. 2021; 12:716084.
PMID: 34539649 PMC: 8446604. DOI: 10.3389/fimmu.2021.716084.
Innate Immune Components that Regulate the Pathogenesis and Resolution of hRSV and hMPV Infections.
Andrade C, Pacheco G, Galvez N, Soto J, Bueno S, Kalergis A Viruses. 2020; 12(6).
PMID: 32545470 PMC: 7354512. DOI: 10.3390/v12060637.
Respiratory Syncytial Virus Disease Severity Is Associated with Distinct CD8 T-Cell Profiles.
Siefker D, Vu L, You D, McBride A, Taylor R, Jones T Am J Respir Crit Care Med. 2019; 201(3):325-334.
PMID: 31644878 PMC: 6999109. DOI: 10.1164/rccm.201903-0588OC.