The metastatic prostate carcinoma cells (LNCaP, PC-3, and DU145) exhibited higher MALT1 protein (Figure 1A) and mRNA (Figure 1B) levels than non-metastatic cells (PZ-HPV-7 and CA-HPV-10), indicating that MALT1 expression in prostate carcinoma cells contributes to the malignancy in vitro. This evidence concerns the gene MALT1 and prostate carcinoma.