Abstract
Tissue factor (TF) is a cell surface glycoprotein playing an important role in the initiation of the blood coagulation cascade. The functions of TF in other physiological or pathological activities, such as tumor cell migration, are also acknowledged gradually in recent years. A recombinant protein of mouse tissue factor (mTF) extracellular part fused with His tag was constructed, and it was expressed and purified successfully in high-level soluble form. This recombinant mTF can effectively initiate plasma clotting in vitro and enhance blood coagulation in vivo, which prove its biological activity. Using this recombinant mTF as immunogen, a murine monoclonal function-blocking antibody to mTF was also generated, which can inhibit mTF-initiated plasma clotting in vitro. And by treating with this function-blocking antibody, the thrombus formation in a murine deep vein thrombosis model was attenuated successfully, which suggests the important role of tissue factor in deep vein thrombosis. In all, with the active mTF recombinant protein and the mTF function-blocking antibody, the functional investigations of TF in murine models of various research areas become more convenient and feasible.
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