CD141/Thrombomodulin (TM, THBD, BDCA-3) is an integral membrane protein expressed on the surface of endothelial cells. Acting as a cofactor with Thrombin, CD141/Thrombomodulin activates and initiates the Protein C anticoagulant pathway. CD141/Thrombomodulin is expressed by a small subset of human CD11c+ myeloid dendritic cells. These CD141+XCR1+ dendritic cells cross-present antigens to na