“…To date, most in vitro Fe 3 O 4 NP toxicity information was derived from studies carried out on immortalized or tumorigenic cells (Coccini, Caloni, Ramírez Cando, & De Simone, ; Guadagnini, Moreau, Hussain, Marano, & Boland, ; Mahmoudi, Hofmann, Rutishauser, & Fink, ; Malvindi et al, ; Sanganeria, Sachar, et al, ). Recent studies have started to apply MSCs for Fe 3 O 4 NP toxicity evaluation (in terms of cytotoxicity, MSC differentiation capacity and iron uptake), which mostly derive from BM (Hachani et al, ; Harrison et al, ; Rosenberg et al, ), few from UC tissue (Dulinska‐Molak et al, ; Hu et al, ; Periasamy, Athinarayanan, Alhazmi, Alatiah, & Alshatwi, ) and only one from CL‐MSC (Sanganeria, Chandra, Bahadur, & Khanna, ).…”