CXCL5 and idiopathic pulmonary fibrosis: In our study, a great number of immune factors were altered in IPF patients, including upregulation of CXCL5, CXCL13, CXCL14, IL5RA, and TNFRSF19 and downregulation of CSF3R, S100A8, S100A9, and S100A12.