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Area of Science:

  • Genetics
  • Immunology
  • Molecular Biology

Background:

  • Pemphigus foliaceus (PF) is an autoimmune disease targeting desmoglein 1, influenced by genetic and environmental factors.
  • Long noncoding RNAs (lncRNAs) are implicated in gene regulation and complex disease pathogenesis.
  • Single-nucleotide polymorphisms (SNPs) in lncRNA genes may affect disease risk.

Purpose of the Study:

  • To investigate the association between SNPs in lncRNA genes and susceptibility to endemic pemphigus foliaceus.
  • To identify specific lncRNA genetic variations contributing to PF development.

Main Methods:

  • Integrated lncRNA SNP database with genome-wide genotype data.
  • Analyzed 2080 SNPs in lncRNAs for association with PF in 229 patients and 6681 controls using logistic regression.

Main Results:

  • Identified a significant association between SNP rs7144332 in lncRNA gene AL110292·1 and PF (OR = 1·63, P = 2·8 × 10-6).
  • Five additional SNPs showed suggestive association (P < 0·001).
  • In silico analysis indicated potential impacts on transcription, lncRNA structure, and microRNA interactions for these SNPs.

Conclusions:

  • Demonstrated that variations in lncRNA genes can influence pemphigus pathogenesis.
  • Highlighted the role of lncRNA variation in autoimmune diseases.
  • Suggested specific polymorphisms for further functional validation in complex diseases.