“…This shift in NAD metabolism is thought to confer advantages to cancer cells, such as increased resistance to oxidative stress and DNA damage, enhanced cell survival and proliferation, and altered immune response (Yaku et al, 2018 ; Zhang et al, 2017 ). Changes in the expression of NAD metabolism enzymes, such as NAMPT, NAPRT, PARPs, sirtuins, and CD38, have been observed in many tumor types (Akanksha et al, 2022 ; Chalkiadaki & Guarente, 2015 ; Chowdhry et al, 2019 ; Demarest et al, 2019 ; Garten et al, 2015 ; Navas & Carnero, 2021 ; Shi et al, 2021 ). Besides dysregulations in cancer itself, cancer treatments can also influence NAD metabolism through the induction of DNA damage (Banerjee et al, 2022 ).…”