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Role(s) of IL-2 inducible T cell kinase and Bruton's tyrosine kinase in mast cell response to lipopolysaccharide.

ABSTRACT: Mast cells play critical roles during immune responses to the bacterial endotoxin lipopolysaccharide (LPS) that can lead to fatal septic hypothermia [1], [2], [3]. IL-2 inducible T cell kinase (ITK) and Bruton's tyrosine kinase (BTK) are non-receptor tyrosine kinases that act downstream of numerous receptors, and have been shown to modulate mast cell responses downstream of Fc?RI? [4], however, their roles in regulating mast cell responses to endotoxic stimuli were unclear. We found that the absence of ITK and BTK alters the mast cell response to LPS, and leads to enhanced pro-inflammatory cytokine production by mast cells and more severe LPS-induced hypothermia in mice [5]. Here, we detail our investigation using microarray analysis to study the transcriptomic profiles of mast cell responses to LPS, and the roles of ITK and/or BTK expression in this process. Mouse whole genome array data of WT, Itk (-/-) , Btk (-/-) , and Itk (-/-)  Btk (-/-) bone marrow-derived mast cells (BMMCs) stimulated by PBS (control) or LPS for 1 h were used in our latest research article [5] and is available in the Gene Expression Omnibus under accession number GSE64287.


PROVIDER: S-EPMC4818347 | BioStudies | 2016-01-01

REPOSITORIES: biostudies

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