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Protein Networks02:26

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Identifying allergic-rhinitis-associated genes with random-walk-based method in PPI network.

Lin Li1, FeiMing Huang2, Yu-Hang Zhang3

  • 1Department of Otolaryngology and Head&neck, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, China; Department of Otolaryngology and Head&neck, China-Japan Union Hospital, Jilin University, Changchun, 130033, China.

Computers in Biology and Medicine
|May 2, 2024
PubMed
Summary

Researchers identified 52 novel genes linked to allergic rhinitis by analyzing gene networks. These findings offer new insights into the molecular mechanisms of allergic rhinitis and potential therapeutic targets.

Keywords:
Allergic rhinitisDisease geneProtein-protein interactionRandom walk with restart

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Area of Science:

  • Immunology
  • Genetics
  • Bioinformatics

Background:

  • Allergic rhinitis is a prevalent allergic condition with complex origins.
  • Genetic factors significantly influence allergic rhinitis development.
  • Understanding these genetic links is crucial for novel treatment strategies.

Purpose of the Study:

  • To identify novel genes associated with allergic rhinitis.
  • To explore the molecular pathways involved in allergic rhinitis pathogenesis.
  • To uncover potential therapeutic targets for allergic rhinitis.

Main Methods:

  • Utilized the DisGeNET database to retrieve 446 allergic rhinitis-related genes.
  • Constructed a protein-protein interaction network using a random-walk-with-restart algorithm.
  • Applied permutation, interaction, and enrichment tests to screen for significant genes.

Main Results:

  • Identified 52 novel genes with strong and specific associations with allergic rhinitis.
  • Functional enrichment analysis confirmed the involvement of these genes in allergic rhinitis-related biological processes and pathways.
  • Highlighted IRAK2 and MAPK pathways in allergic rhinitis pathogenesis and inflammation inhibition.

Conclusions:

  • The 52 newly identified genes provide valuable candidates for further research into allergic rhinitis.
  • These findings advance the understanding of allergic rhinitis's molecular mechanisms.
  • The identified genes may lead to the development of more effective allergic rhinitis treatments.