MMP12→Interleukin-8→Nitric Oxide Synthase→poly-ADP-ribose

• 12735638(MMP12): Matrix metalloproteinase-19 is expressed by keratinocytes in psoriasis.

  Furthermore , MMP-19 mRNA was upregulated in psoriatic keratinocytes and skin as assessed by quantitative real-time polymerase chain reaction.

• 8920887(Interleukin-8): A proinflammatory activity of interleukin 8 in human skin: expression of the inducible nitric oxide synthase in psoriatic lesions and cultured keratinocytes.

  As demonstrated by in situ hybridization and immunohistochemistry , expression of iNOS mRNA and its gene product was localized to the epidermal keratinocytes of psoriatic skin lesions.

• 7540573(Nitric Oxide Synthase): Cloning and expression of cytokine-inducible nitric oxide synthase cDNA from rat islets of Langerhans.

  In conclusion , the IL-1 beta-induced iNOS cloned and expressed from rat islets and RIN cells is encoded by the same transcript as the iNOS induced in other cell types.

• 1531861(poly-ADP-ribose): Nicotinamide partially reverses the interleukin-1 beta inhibition of glucose-induced insulin release in pancreatic islets.

  We studied the effect of nicotinamide , an inhibitor of poly (adenosine diphosphate (ADP) - ribose) synthetase and a free-radical scavenger , on this IL-1 beta-induced inhibition using rat pancreatic islets.