The glucocorticoid receptor overexpression in early life is sufficient to alter gene expression patterns for the rest of the animal's life.
Early-life forebrain glucocorticoid receptor overexpression increases anxiety behavior and cocaine sensitization.
Sex, Specimen part
View SamplesNeutrophil abscess formation is critical in innate immunity against many pathogens. Here, the mechanism of neutrophil abscess formation was investigated using a mouse model of Staphylococcus aureus cutaneous infection. Gene expression analysis of S. aureus-infected skin revealed that induction of neutrophil recruitment genes was largely dependent upon IL-1beta/IL-1R activation. Unexpectedly, using IL 1beta reporter mice, neutrophils were identified as the primary source of IL-1beta at the site of infection. Furthermore, IL-1beta-producing neutrophils were necessary and sufficient for abscess formation and bacterial clearance. S. aureus-induced IL 1beta production by neutrophils required TLR2, NOD2, FPRs and the ASC/NLRP3 inflammasome. Taken together, IL-1beta and neutrophil abscess formation during an infection are functionally, spatially and temporally linked as a consequence of direct IL-1beta production by neutrophils.
Neutrophil-derived IL-1β is sufficient for abscess formation in immunity against Staphylococcus aureus in mice.
Specimen part
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