CXCL9 and temporal arteritis: 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.