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. 2026 Aug 27;15(8):585. doi: 10.21037/tcr-2026-1405

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Correlation of immune cell and checkpoints infiltrates with the prognostic model in PAAD. (A) The relationship between the four PMNPs and immune cells. (B) The immune cell infiltration scores between high- and low-risk groups. (C) The relationship between the four PMNPs and immune checkpoints. (D) The expression level of immune checkpoints between high- and low-risk groups. *, P<0.05; **, P<0.01; ***, P<0.001. aDC, activated dendritic cell; Cor, correlation; DC, dendritic cell; iDC, immature dendritic cell; MNPs, microplastics and nanoplastics; NK, natural killer; PAAD, pancreatic ductal adenocarcinoma; pDC, plasmacytoid dendritic cell; PMNPs, MNPs-related genes in PAAD.