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Genetics of systemic sclerosis.

Lara Bossini-Castillo1, Elena López-Isac, Maureen D Mayes

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Genetic factors for systemic sclerosis (SSc), a fibrotic connective tissue disorder, are increasingly identified. This review details established SSc genetic markers and their links to disease mechanisms.

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Area of Science:

  • Immunogenetics
  • Rheumatology
  • Human Genetics

Background:

  • Systemic sclerosis (SSc) is a complex fibrotic connective tissue disease.
  • Understanding SSc genetic susceptibility is crucial for elucidating pathogenesis.
  • Significant progress has been made in identifying genetic risk factors for SSc.

Purpose of the Study:

  • To review established genetic susceptibility markers for Systemic Sclerosis.
  • To analyze recent findings in HLA and non-HLA genetic regions associated with SSc.
  • To explore functional links between identified genetic loci and SSc pathogenesis.

Main Methods:

  • Review of published literature on SSc genetics.
  • Focus on genetic regions associated at genome-wide significance or replicated in multiple studies.
  • Analysis of findings in both HLA and non-HLA regions.

Main Results:

  • Several firm genetic susceptibility markers for SSc have been identified.
  • Recent advances include findings in the HLA region and various non-HLA genes.
  • Proposed functional connections link these genetic loci to SSc disease mechanisms.

Conclusions:

  • The genetic landscape of Systemic Sclerosis is becoming clearer.
  • Further large-scale studies with detailed phenotyping are needed.
  • Translating SSc genetics into clinical practice remains a future goal.