Microarray-based gene expression profiling in mouse bleomycin-induced systemic sclerosis model treated with MT-7117

In this study, we analyzed the gene expression profiles of the lung in mouse bleomycin (BLM)-induced systemic sclerosis (SSc) model treated with MT-7117. Gene array analysis using the BLM-induced SSc model demonstrated changes in numerous categories related to macrophages, monocytes, and neutrophils, followed by endothelial cell-related categories after treatment with MT-7117 (Dersimelagon). In the analysis that focused on biological functions, categories of inflammatory response, activation of antigen-presenting cells, angiogenesis, atherosclerosis, vasculogenesis, and vaso-occlusion were suppressed by MT-7117. In the analysis that focused on molecular signaling pathways, triggering receptor expressed on myeloid cells-1, IL-6, and oncostatin M involved in inflammation, and peroxisome proliferator-activated receptor that is related to fibrosis were all affected by MT-7117. Total RNA of mouse lung tissue samples of PBS_vehicle (control group without disease), BLM_vehicle (control group with disease), and BLM_MT-7117 (0.3 mg/kg) obtained from the BLM-induced SSc model (prophylactic evaluation) was used for analysis