NCI Drug Dictionary

The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

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amblyomin-X
A recombinant form of a toxic protein derived from the salivary glands of the Amblyomma cajennense tick that inhibits Factor Xa and induces apoptosis, with potential antithrombotic and antineoplastic activities. Upon administration, amblyomin-X promotes endoplasmic reticulum (ER) stress, mitochondrial dysfunction, cytochrome-c release, poly(ADP-ribose) polymerase (PARP) cleavage, and activation of caspase. Additionally, this agent selectively induces apoptosis in tumor cells. It also affects endothelial cell functions, such as adhesion, and may inhibit angiogenesis. Amblyomin-X targets and binds to factor Xa, inhibits its activity and interrupts the blood coagulation cascade, thereby preventing thrombin formation and thrombus development. As cancer is associated with thrombosis, amblyomin-X could potentially exert its antineoplastic and antithrombotic effects in the cancer patient at the same time. Check for active clinical trials using this agent. (NCI Thesaurus)