Furthermore, RNA‐seq analysis insights revealed that PTL/ICG‐CaCO3@Lip facilitates tumor cell ferroptosis by regulating P53 to downregulate SLC7A11 protein expression, thereby inhibiting the glutamate‐cystine antiporter system Xc− and stimulating ACSL4/LPCAT3 pathways. This evidence concerns the gene SLC7A11 and neoplasm.