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Integrating bioinformatic resources to identify characteristics of rheumatoid arthritis-related usual interstitial

Yulu Qiu1, Chang Liu1, Yumeng Shi1

  • 1Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.

BMC Genomics
|August 10, 2023
PubMed
Abstract

Insights

Rheumatoid arthritis-associated interstitial pneumonia (RA-UIP) mechanisms were explored using bioinformatics. Oxidative phosphorylation and immune regulation pathways were identified as key players in RA-UIP pathogenesis.

Area of Science:

  • Pulmonary Medicine
  • Rheumatology
  • Bioinformatics

Background:

  • Rheumatoid arthritis (RA) frequently presents with RA-related usual interstitial pneumonia (RA-UIP), a condition linked to poor patient outcomes.
  • The underlying mechanisms driving RA-UIP remain largely unknown.
  • Bioinformatics analysis of high-throughput sequencing data was employed to investigate these mechanisms.

Purpose of the Study:

  • To elucidate the molecular mechanisms of RA-UIP.
  • To identify potential biomarkers and therapeutic targets for RA-UIP.

Main Methods:

  • Weighted gene co-expression network analysis (WGCNA) was performed on Gene Expression Omnibus (GEO) database data.
  • Differentially expressed genes (DEGs) common to RA and idiopathic pulmonary fibrosis (IPF) were identified.
  • Gene enrichment analysis and immune infiltration analysis were conducted on RA-UIP lung tissues.

Main Results:

  • WGCNA identified RA- and IPF-associated gene modules.
  • "Oxidative phosphorylation" emerged as a significantly relevant biological process in both RA and IPF.
  • Analysis revealed 498 upregulated genes in RA-UIP lungs, with 3 clusters linked to immune regulation and distinct peripheral immune cell infiltration patterns compared to IPF-UIP.

Conclusions:

  • The study delineates the intricate molecular and functional characteristics of RA-UIP.
  • Findings provide insights into the molecular pathology of RA-UIP.
  • This research may facilitate the discovery of novel biomarkers and therapeutic strategies for RA-UIP.
Keywords:
Bioinformatics analysesIdiopathic pulmonary fibrosisImmune pathological mechanismRheumatoid arthritisUsual interstitial pneumonia

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