SOD1 and breast cancer: Another samll molecular LCS-1 (lung cancer screen 1, 4,5-Dichloro-2-(3-methylphenyl)-3(2H)-pyridazinone) is screened as an inhibitor of SOD1 and inhibits the growth of lung adenocarcinoma cell lines (14), and has been reported to induce death of colorectal cancer cells and breast cancer cells (15–17).