Several proteins, like ANGPT2, CD163, CHI3L1, CXCL13, CXCL9, CXCL10, IL1B, IL18, IL2RA, IL6, IL6R, MMP2, MMP3, PTX3, S100A9, SPP1, TEK, TIMP1, TNC, TNFRSF1A, and VEGFA, were described as potential markers of active GCA. The gene discussed is CHI3L1; the disease is temporal arteritis.