NAMPT and cancer: Likewise, inhibition of nicotinamide phosphoribosyltransferase (NAMPT) can suppress the outgrowth of cisplatin‐treated epithelial ovarian cancer (EOC) via inhibition of senescence‐associated cancer stem cells (CSCs) because NAD+/NADH metabolism is a crucial controllable factor in determining the magnitude of the proinflammatory SASP.321