IL6 and neoplasm: Further, compared to the oe‐NC+M2pep‐Cs NPs/Plerixafor group, the expression of IFN‐γ, IL‐12, and IL‐6 was significantly reduced in the tumor tissues of mice in the oe‐CXCR4+M2pep‐Cs NPs/Plerixafor group (Figure S13E, Supporting Information).