Src inhibitor is a class of inhibitors[jargon] that targets the Src kinase family of tyrosine kinase, which is transcribed by the Src proto-oncogene (short for "sarcoma gene") that potentially induce malignant transformations of certain cells.
Because of the crucial position of the Src kinase in cells, Src inhibitors are potential antineoplastic agents for e.g. pancreatic cancer, breast cancer and stomach cancer[1]