A Strategic Antimetastatic Solution for Bone-Targeting Prostate Cancer via Nanoengineered Niclosamide

Prostate cancer is the second leading cause of cancer-related deaths in men worldwide, with bone metastasis being the predominant driver of morbidity and mortality in advanced stages. This underscores the urgent need for innovative therapeutic strategies to address skeletal metastasis and improve patient outcomes. Niclosamide, a long-standing anthelminthic drug, has emerged as a promising multipathway modulator against cancer hallmarks. Here, we propose a nanotechnology-enabled repurposing of niclosamide, hypothesizing that its formulation into smart, targeted nanohybrids could not only suppress prostate tumor growth but also inhibit its dissemination to the skeletal system. We discuss the molecular rationale, design considerations, and translational outlook for nanoengineered niclosamide in the context of metastatic prostate cancer.