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Updated: Jan 6, 2026

Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
Published on: March 2, 2014
Transcriptomic analysis reveals Rnd1 to be a key player in antiviral immunity against Akabane virus via the TNF-α
Dongjie Chen1, Jingjing Wang1, Chao Sun2
1Institute of Animal Inspection and Quarantine, Chinese Academy of Quality and Inspection & Testing, No. 11, Ronghuanan Road, Beijing, 100176, China.
Akabane virus (AKAV) infection in bovine cells activates antiviral responses and upregulates inflammatory genes. Rnd1, a key gene, was found to inhibit AKAV replication, offering insights into host defense mechanisms against this virus.
Area of Science:
- Veterinary Virology
- Molecular Biology
- Immunology
Background:
- Akabane virus (AKAV) causes congenital malformations and neuropathologies in livestock fetuses.
- Understanding the host gene expression response to AKAV is crucial for developing countermeasures.
Purpose of the Study:
- To analyze transcriptomic changes in bovine cells infected with AKAV.
- To identify host genes involved in antiviral defense and AKAV replication.
Main Methods:
- Primary bovine testicular Sertoli cells (BTSCs) and joint synovial cells (BJSCs) were infected with AKAV strain TJ2016.
- RNA-sequencing was used to profile gene expression in infected BTSCs, BJSCs, and Madin-Darby ovine kidney (MDOK) cells.
Main Results:
- AKAV infection activated antiviral signaling pathways and upregulated interferon-stimulated genes.
- Genes related to inflammation and cytokines, including IL-1β, TNF-α, CXCL8, and CCL2, were significantly upregulated.
- Rnd1 expression was upregulated and demonstrated inhibitory effects on AKAV replication, with TNF-α playing a role in its induction.
Conclusions:
- AKAV infection triggers a complex host response involving antiviral and inflammatory pathways.
- Rnd1 emerges as a host factor that restricts AKAV replication, highlighting its potential role in innate immunity.
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