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[Psoriasis: physiopathology and immunogenetics].

M Ammar1, C Souissi-Bouchlaka1, A Gati1

  • 1Laboratoire de génétique, d'immunologie et de pathologies humaines, faculté des sciences de Tunis, université El Manar II, 2092 Tunis, Tunisie.

Pathologie-Biologie
|March 5, 2014
PubMed
Summary
This summary is machine-generated.

Psoriasis is a complex genetic and immunological disease. Research identifies multiple genetic loci (PSORS) and immune responses (TH1/TH17) involved in its development, paving the way for new therapeutic targets.

Keywords:
GeneticGénétiqueImmunopathologieImmunopathologyPSORS1PhysiopathologiePhysiopathologyPsoriasisTH17

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Area of Science:

  • Genetics
  • Immunology
  • Dermatology

Background:

  • Psoriasis is a multifactorial skin condition influenced by genetic, immune, and environmental factors.
  • Recent research has identified over ten psoriasis susceptibility loci (PSORS) and numerous candidate genes.
  • The disease is understood to follow a mixed genetic model, involving a major gene (PSORS1) and minor genes with variable penetrance.

Purpose of the Study:

  • To review the genetic and immunological factors contributing to psoriasis pathogenesis.
  • To highlight the current understanding of genetic loci and immune responses in psoriasis.
  • To identify areas for future research in understanding psoriatic lesion development and therapeutic targets.

Main Methods:

  • Genome-wide scans on families and case-control studies.
  • Analysis of genetic data focusing on immune system involvement.
  • Review of immunological response profiles, including T-helper 1 (TH1) and T-helper 17 (TH17) cells.

Main Results:

  • Identification of more than ten psoriasis susceptibility loci (PSORS) across different chromosomes.
  • Confirmation of psoriasis as a genetic disease with a major gene (PSORS1) and additional minor genes.
  • Established role of the immune system, specifically TH1 and TH17 responses, in psoriasis pathogenesis.

Conclusions:

  • Psoriasis is a complex genetic disorder with significant immunological underpinnings.
  • Further research is needed to fully elucidate the mechanisms driving psoriatic lesion formation.
  • Understanding these mechanisms is crucial for developing novel therapeutic strategies for psoriasis.