Inflammasome signaling plays important roles in cancer cells and TAM interaction. (A) Immunohistochemistry and quantitative correlation analyses of AIM2 and NLRP3 expression and IBA-1+ TAM infiltration in GBM patients. Scale bar: 25 μm. (B and C) Western blotting analysis of the inflammasome (NLRP3 and AIM2), C-Caspase 1 (cleaved caspase 1), and PD-L1 expression in THP-1 co-cultured GBM and BRCA cells, pre-treated with MB (B) or CASP1 targeted siRNA (C). (D and E) Migration analysis of THP-1, co-cultured with cancer cells that were pre-treated with MB (D) or CASP1 targeted siRNA (E). Scale bar: 25 μm. (F and G) Western blotting analysis of PD-L1 expression in THP-1 which was co-cultured with cancer cells pre-treated with MB (F) or CASP1 targeted siRNAs (G). **p < 0.01, ***p < 0.001, ****p < 0.0001.