Identification and validation of differentially expressed genes in allergic asthma pathogenesis using...

Area of Science:

• Genomics
• Immunology
• Molecular Biology

Background:

• Allergic asthma is a complex respiratory disease characterized by chronic airway inflammation.
• Understanding the molecular mechanisms of asthma pathogenesis is crucial for developing effective treatments.

Purpose of the Study:

• To systematically identify differential gene expression profiles in allergic asthma patients using whole-transcriptome sequencing.
• To validate the role of identified genes in asthma pathogenesis and uncover molecular mechanisms.

Main Methods:

• Whole-transcriptome sequencing of peripheral blood and airway samples from 80 allergic asthma patients and 40 controls.
• Differential gene expression analysis using DESeq2, followed by validation with qRT-PCR, immunohistochemistry, and Western blot.
• Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses to determine biological significance.

Main Results:

• Identified significant differential gene expression between asthma patients and controls.
• Upregulation of inflammatory genes (e.g., IL1B, CCL17, MUC5AC) and downregulation of regulatory immune factors (e.g., FOXP3, IFNG) in asthma patients.
• Enrichment analysis highlighted immune response, T-cell activation, and MAPK signaling pathways.

Conclusions:

• Differential gene expression is critical in asthma pathogenesis.
• The study provides evidence for molecular mechanisms underlying allergic asthma.
• Findings support the development of novel targeted therapeutic strategies for asthma.