Related Experiment Video
Updated: Dec 1, 2025
08:05
Murine Model of Allergen Induced Asthma
Published on: May 14, 2012
40.9K
Differentially expressed circular RNAs in a murine asthma model.
Hui Bao1, Qiuyan Zhou2, Qiuju Li2
1Research Center of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, Guangdong 518060, P.R. China.
Molecular Medicine Reports
|November 11, 2020
Summary
Circular RNAs (circRNAs) play a key role in allergic asthma development. This study identified differentially expressed circRNAs in a mouse model, revealing their involvement in immune and cellular processes relevant to asthma.
Area of Science:
- Molecular Biology
- Immunology
- Genetics
Background:
- Allergic asthma prevalence is increasing, with mechanisms not fully understood beyond genetics.
- Epigenetic factors, including non-coding RNAs like circular RNAs (circRNAs), are emerging as crucial players.
- circRNAs are implicated in the pathogenesis of various diseases, necessitating investigation in allergic asthma.
Purpose of the Study:
- To investigate the role of aberrantly expressed circRNAs in the etiology of allergic asthma.
- To identify specific circRNAs and their associated biological pathways in a murine asthma model.
Main Methods:
- Established a house dust mite allergen-induced asthma mouse model.
- Utilized next-generation sequencing to identify differentially expressed circRNAs.
- Validated circRNA expression using reverse transcription-quantitative PCR (RT-qPCR).
- Performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses.
- Constructed circRNA-microRNA (miRNA) interaction networks using Cytoscape.
Main Results:
- Identified 150 upregulated and 130 downregulated circRNAs in the asthma model compared to controls.
- Pathway analysis indicated involvement of differentially expressed circRNAs in 'autoimmune disease', 'cell adhesion molecules (CAMs)', and 'endocytosis'.
- Validated expression levels for six specific circRNAs (three upregulated, three downregulated).
Conclusions:
- circRNAs are significantly dysregulated in allergic asthma and play critical roles in pathways like endocytosis, cell adhesion, and lipid metabolism.
- The identified circRNAs may influence asthma pathogenesis through interactions with specific miRNAs.
- These findings highlight circRNAs as potential diagnostic and therapeutic targets for allergic asthma.
