Resolvin E1 (RvE1) attenuates LPS induced inflammation and subsequent atrophy in C2C12 myotubes

LA Baker, NRW Martin, MC Kimber… - Journal of Cellular …, 2018 - Wiley Online Library
Journal of Cellular Biochemistry, 2018Wiley Online Library
Resolution of inflammation is now known to be an active process which in part is instigated
and controlled by specialized pro‐resolving lipid mediators (SPM's) derived from dietary
omega‐3 fatty acids. Resolvin E1 (RvE1) is one of these SPM's derived from the omega‐3
fatty acid eicosapentaenoic acid. Using both molecular and phenotypic functional measures
we report that in a model of Lipopolysaccharide (LPS) induced inflammation, RvE1
attenuated mRNA levels of both interlukin‐6 and monocyte chemoattractant protein‐1 whilst …
Abstract
Resolution of inflammation is now known to be an active process which in part is instigated and controlled by specialized pro‐resolving lipid mediators (SPM's) derived from dietary omega‐3 fatty acids. Resolvin E1 (RvE1) is one of these SPM's derived from the omega‐3 fatty acid eicosapentaenoic acid. Using both molecular and phenotypic functional measures we report that in a model of Lipopolysaccharide (LPS) induced inflammation, RvE1 attenuated mRNA levels of both interlukin‐6 and monocyte chemoattractant protein‐1 whilst having no effect on tumor necrosis factor‐α or interlukin‐1β in C2C12 skeletal muscle myotubes. Findings at the molecular level were transferred into similar changes in extracellular protein levels of the corresponding genes with the greatest attenuation being noted in IL‐6 protein concentrations. RvE1 instigated beneficial morphological changes through the prevention of LPS induced skeletal muscle atrophy, in tandem with attenuation of the LPS induced reduction in contractile force in tissue engineered skeletal muscle. These findings demonstrate, in our model of endotoxin induced inflammation in skeletal muscle, that RvE1 has pro‐resolving properties in this cell type. Our data provides rationale for further investigation into the mechanistic action of RvE1 in skeletal muscle, with the vision of having potential benefits for the prevention/resolution of in‐vivo skeletal muscle atrophy.
Wiley Online Library