A benzimidazole inhibitor attenuates sterile inflammation induced in a model of systemic autoinflammation in female mice.

Scientific Reports
Federica AglianoAnthony T Vella

Abstract

Sterile stimuli can trigger inflammatory responses, and in some cases can lead to a variety of acute or chronic diseases. In this study, we hypothesize that a benzimidazole inhibitor may be used as a therapeutic in the treatment of sterile inflammation. In vitro, this inhibitor blocks TLR signalling and inflammatory responses. The benzimidazole inhibitor does not prevent mouse macrophage activation after stimulation with 2,6,10,14-tetramethylpentadecane (TMPD, also known as pristane), a hydrocarbon oil that mimics features of sterile inflammation when injected in vivo. However, C57BL/6J female mice treated with the benzimidazole inhibitor exhibited a significant reduction of pristane-dependent induction of splenocyte number and weight. Conversely, no significant difference was observed in males. Using mass spectrometry, we found that the urine of pristane-injected mice contained increased levels of putative markers for several inflammatory diseases, which were reduced by the benzimidazole inhibitor. To study the mechanism, we showed that pristane-injected mice had increased cell free DNA in serum, which was not impacted by inhibitor treatment. However, chemokine release (e.g. MCP-1, RANTES and TARC) was significantly reduced in...Continue Reading

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Methods Mentioned

BETA
Assay
ELISA
nuclear translocation
FACS

Software Mentioned

LEGENDplex Data Analysis
GraphPad
Andromeda
GraphPad Prism
Scaffold Q + S
MaxQuant
Scaffold
FlowJo

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