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. 2024 Aug 31;12:93. doi: 10.1186/s40364-024-00644-3

Fig. 4.

Fig. 4

mRNA vaccines reshape tumor immune microenvironment (TIME). Legend.mRNAvaccine possesses the potential to reshape the tumor immune microenvironment via two primary mechanisms. Firstly, it regulates the equilibrium between M1 and M2 macrophages, thus transforming M2 macrophages into M1 macrophages. Secondly, it induces the secretion of cytokines by various T cells (For example T helper cell). Additionally, the vaccine promotes the maturation of dendritic cells (DC) through Toll-like receptor (TLR) receptors, activates the transcription factor NF kB to stimulate the maturation of cytotoxic T lymphocytes (CTL), and prompts T helper cells to secrete cytokines