Abstract
Objective: To investigate whether piperlongumine can sensitize prostate cancer cells to tumor necrosis factor-related apoptosis- inducing ligand (TRAIL) and trigger apoptosis in prostate cells. Methods: Human prostate cancer cell lines PC3, LNCaP, and VCaP were cultured with piperlongumine and TRAIL. Then, cell proliferation, migration, caspase activation, apoptotic protein expressions, and death receptor expressions were measured. Results: Piperlongumine inhibited cell proliferation at low doses ( Conclusions: Our findings indicate that piperlongumine can sensitize cancer cells to TRAIL through the upregulation of death receptors and can trigger apoptosis with the downregulation of anti- apoptotic proteins.
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