Human rhinovirus-induced inflammatory responses are inhibited by phosphatidylserine containing liposomes
File(s)Stokes et al_2016 (2).pdf (2.5 MB)
Published version
Author(s)
Type
Journal Article
Abstract
Human rhinovirus (HRV) infections are major contributors to the healthcare burden associated with acute exacerbations of chronic airway disease, such as chronic obstructive pulmonary disease and asthma. Cellular responses to HRV are mediated through pattern recognition receptors that may in part signal from membrane microdomains. We previously found Toll-like receptor signaling is reduced, by targeting membrane microdomains with a specific liposomal phosphatidylserine species, 1-stearoyl-2-arachidonoyl-sn-glycero-3-phospho-L-serine (SAPS). Here we explored the ability of this approach to target a clinically important pathogen. We determined the biochemical and biophysical properties and stability of SAPS liposomes and studied their ability to modulate rhinovirus-induced inflammation, measured by cytokine production, and rhinovirus replication in both immortalized and normal primary bronchial epithelial cells. SAPS liposomes rapidly partitioned throughout the plasma membrane and internal cellular membranes of epithelial cells. Uptake of liposomes did not cause cell death, but was associated with markedly reduced inflammatory responses to rhinovirus, at the expense of only modest non-significant increases in viral replication, and without impairment of interferon receptor signaling. Thus using liposomes of phosphatidylserine to target membrane microdomains is a feasible mechanism for modulating rhinovirus-induced signaling, and potentially a prototypic new therapy for viral-mediated inflammation.Mucosal Immunology advance online publication, 24 February 2016; doi:10.1038/mi.2015.137.
Date Issued
2016-02-24
Date Acceptance
2015-11-25
Citation
Mucosal Immunology, 2016, 9, pp.1303-1316
ISSN
1935-3456
Publisher
Nature Publishing Group
Start Page
1303
End Page
1316
Journal / Book Title
Mucosal Immunology
Volume
9
Copyright Statement
© 2016 Nature Publishing Group. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material
in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material
is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce
the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/
in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material
is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce
the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/
Identifier
PII: mi2015137
Subjects
Immunology
06 Biological Sciences
11 Medical And Health Sciences
Publication Status
Published