Effect of neutrophil depletion on gene expression im macrophages and fibroblasts from mouse lung and skin

To investigate the effect of the absence of neutrophils in the transcriptome of fibroblast and macrophage from lung and skin we injected DT to Mrp8 CRE+ iDTR and Mrp8 CRE- iDTR mice every two days for a week and isolated lung and skin fibroblasts and macrophages by cell sorting . We then performed gene expression profiling analysis using data obtained from RNA-seq of macrophages and fibroblast 7 days after DT treatment and compared the transcriptomes of macrophages and fibroblasts in control or neutrophil depletion animals. We focused on the role of neutrophils on the regulation of extracelular matrix genes in fibroblasts and macrophages and found that neutrophil depletion does not significantly affect the RNA level of matrix-related transcripts in those cells.