The (−)-KU from black pepper (Piper nigrum) decreases tumor size and tumor-related proteins in breast cancer rats [9]; (−)-KU binds CSF1R (computational prediction), a tyrosine kinase family protein, leading to the reduction of cancer proteins such as CSF1R, AKT, CyclinD1, and CDK in breast cancer cells. The gene discussed is CSF1R; the disease is breast carcinoma.