From bench to bedside-translational research in psoriasis

  • Prinz J
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For many years, psoriasis was firmly believed to be a disease of epidermal keratinocytes, but now is attributed to a combination of genetic and environmental factors that promote a T-cell mediated immune response in the skin. Psoriasis is now understood to be a systemic T-cell mediated autoimmune disease with the innate immune system playing an important role. Progress in understanding the pathogenesis of psoriasis has shown that following a stimulus, dendritic and T cell activation leads to the release of cytokines, chemokines and growth factors that initiate the proliferation and altered differentiation of keratinocytes. These factors subsequently lead to continuous activation of T cells and antigen-presenting cells, particularly dendritic cells, within the psoriatic plaque. This vicious cycle of psoriasis, in which the cytokines interleukin 12 (IL-12) and IL-23 play a pivotal role, is a logical target for biological therapy.

Author-supplied keywords

  • IL-12
  • IL-23
  • immunopathogenesis
  • psoriasis
  • targeted therapy
  • ustekinumab

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  • J. C. Prinz

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