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Data Analysis-Driven Precise Asthmatic Treatment by Targeting Mast Cells
1Department of Pediatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha 410005, China.
Endocrine, Metabolic & Immune Disorders Drug Targets
|June 11, 2020
Summary
Mast cells significantly alter lung gene expression in asthma, promoting inflammation. Inhaled budesonide effectively reverses these changes by reducing inflammation and mast cell activity.
Area of Science:
- Immunology
- Pulmonary Medicine
- Genomics
Background:
- Mast cells play a role in asthma, but their global impact on lung gene expression remains unclear.
- Identifying mast cell-induced biomarkers and therapeutic targets is crucial for effective asthma treatment.
Purpose of the Study:
- To investigate mast cell-driven gene expression changes in asthmatic lungs.
- To evaluate the therapeutic efficacy of inhaled budesonide (BUD) in mitigating these effects.
Main Methods:
- Pulmonary gene expression analysis in mast cell-engrafted mice using R software.
- Functional enrichment analysis (Gene Ontology, KEGG) and identification of hub genes (String, Cytoscape).
- Assessment of budesonide's anti-inflammatory effects in an ovalbumin-induced asthma rat model.
Main Results:
- Mast cell engraftment amplified inflammation, immune responses, and chemotaxis, with Interleukin-6 (IL-6) identified as a key hub gene.
- Inhaled budesonide reduced serum IL-6, pulmonary inflammation, and beta-tryptase expression in asthma models.
- Budesonide suppressed mast cell accumulation and degranulation, showing effects comparable to Tranilast.
Conclusions:
- Mast cell engraftment induces a distinct pulmonary gene expression profile in asthma.
- This profile can be reversed by mast cell inhibition or inhaled budesonide treatment.
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