The erectile dysfunction drug sildenafil, commonly known as Viagra, has demonstrated potential in inhibiting cancer metastasis. Research from Tel Aviv University and the Weizmann Institute of Science suggests that sildenafil limits cancer cells' ability to utilize cholesterol, a crucial component for their migration and invasion of distant organs. This mechanism could make it harder for tumors to form secondary growths. The study also indicated that combining sildenafil with statins, which reduce cholesterol production, might further enhance its anti-cancer spread effects. AI
RANK_REASON The item describes a scientific study on the potential medical applications of a known drug, which falls under research. [lever_c_demoted from research: ic=1 ai=0.0]
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