Toxoplasma gondii-infected dendritic cells (DCs) exosomes (Me49-DC-Exo) promote M1 macrophage polarisation by regulating macrophage polarisation and inhibit M2 macrophage polarisation of SOCS1 by its enriched miR-155-5p target cytokine signalling suppressor 1 (SOCS1), thereby enhancing anti-tumour immunity and inhibiting colorectal cancer tumour growth [30]. The gene discussed is SOCS1; the disease is neoplasm.