ATN-161

Definition 1

A substance being studied in the treatment of some types of cancer. ATN-161 may prevent the spread of tumor cells and may prevent the growth of new blood vessels that tumors need to grow. It is a type of antiangiogenesis agent. (NCI Dictionary)

Definition 2

A small peptide antagonist of integrin alpha5beta1 with potential antineoplastic activity. ATN-161 selectively binds to and blocks the receptor for integrin alpha5beta1, thereby preventing integrin alpha5beta1 binding. This receptor blockade may result in inhibition of endothelial cell-cell interactions, endothelial cell-matrix interactions, angiogenesis, and tumor progression. Integrin alpha5beta1 is expressed on endothelial cells and plays a crucial role in endothelial cell adhesion and migration. (NCI Thesaurus)

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