Contrasting pathogenesis of atopic dermatitis and psoriasis - Part I: Clinical and pathologic concepts

Emma Guttman-Yassky, Kristine E. Nograles, James G. Krueger

Research output: Contribution to journalArticlepeer-review

282 Scopus citations

Abstract

Atopic dermatitis and psoriasis are 2 of the most common inflammatory skin diseases. They are similar in that they are complex inherited diseases involving genes that encode immune components and structural proteins that regulate differentiation of epidermal cells. Each disease is characterized by proliferation of epidermal keratinocytes and abnormal cornification or terminal differentiation in the epidermis; skin lesions contain immune infiltrates of T cells, dendritic cells, and other types of leukocytes. We review similarities between the diseases and differences in epidermal barrier defects and immune cells. We also propose mechanisms of pathogenesis based on differences in the balance of immune cell subsets that could cause the phenotypes that distinguish these diseases. The first part of this 2-part review focuses on the clinical and pathologic features of the diseases; the second part discusses differences in immune cell subsets between atopic dermatitis and psoriasis and recent therapeutic strategies.

Original languageEnglish
Pages (from-to)1110-1118
Number of pages9
JournalJournal of Allergy and Clinical Immunology
Volume127
Issue number5
DOIs
StatePublished - May 2011
Externally publishedYes

Keywords

  • Atopic dermatitis
  • pathogenesis
  • psoriasis
  • therapy

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