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Related Experiment Videos

Mouse models of psoriasis.

Johann E Gudjonsson1, Andrew Johnston, Melissa Dyson

  • 1Department of Dermatology, University of Michigan Medical Center, Ann Arbor, Michigan 48109, USA. johanng@med.umich.edu

The Journal of Investigative Dermatology
|April 13, 2007
PubMed
Summary
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Psoriasis research is limited by the lack of animal models. Xenograft models, using human psoriatic skin on mice, are crucial for understanding this T-cell-mediated autoimmune skin disease.

Area of Science:

  • Dermatology
  • Immunology
  • Pathogenesis Research

Background:

  • Psoriasis is a T-cell-mediated chronic inflammatory autoimmune skin disease.
  • Streptococcal infections can trigger or worsen psoriasis.
  • Altered epidermal growth and differentiation are key features of psoriasis.

Purpose of the Study:

  • To review various animal models for psoriasis research.
  • To detail immunologic and intracellular pathways in psoriasis pathogenesis.
  • To assess the utility of animal models in understanding psoriasis.

Main Methods:

  • Review of transgenic, knockout, and reconstituted animal models.
  • Analysis of xenograft models using human psoriatic skin on immunodeficient mice.
  • Examination of studies elucidating pathogenic pathways.

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Main Results:

  • Animal models demonstrate interrelation between keratinocyte hyperplasia, vascular hyperplasia, and skin immunity.
  • Xenograft models closely replicate psoriasis's genetic, immunologic, and phenotypic changes.
  • Psoriasis is confirmed as a T-cell-mediated disease through xenograft studies.

Conclusions:

  • Animal models, particularly xenografts, are vital for studying psoriasis pathogenesis.
  • Understanding these models aids in elucidating novel pathogenic pathways.
  • Further research using these models can improve comprehension of psoriasis.