Research Article

Cytosolic Double-Stranded DNA as a Damage-Associated Molecular Pattern Induces the Inflammatory Response in Rat Pancreatic Stellate Cells: A Plausible Mechanism for Tissue Injury-Associated Pancreatitis

Figure 2

Transcription of cytokine and chemokine mRNA was induced by synthetic double-stranded DNA (dsDNA). (a) Extracellular DNA stimulation had no effect on inflammatory cytokines and chemokines, such as tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), monocyte chemoattractant protein-1 (MCP-1), and cytokine-induced neutrophil chemoattractant 1 (CINC-1). In contrast, intracellular dsDNA (at 10  g/mL) had stimulatory effects on their expression, including the expression of their transcriptional factors nuclear factor-kappa B (NF-κB) and reticuloendotheliosis viral oncogene homolog B (RelB) (b). Release of MCP-1 was also confirmed by ELISA (c). PSCs: pancreatic stellate cells, TFx: + transfection reagent lipofectamine. * , ** .
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(b)
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(c)