STIP1 and deep vein thrombosis: One protein, Stress-induced-phosphoprotein 1 (STIP1) was significantly upregulated, while five proteins - ABI3BP, IGHV4-39, IGKV2-40/IGKV2D-40, PCYOX1, and YWHAQ - were significantly downregulated in patients with DVT two weeks postoperatively (Fig. 2).