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Using Reverse Genetics to Manipulate the NSs Gene of the Rift Valley Fever Virus MP-12 Strain to Improve Vaccine Safety and Efficacy
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LncSMIM14 Hijacks Rab3a-Mediated Endocytosis to Promote Bovine Viral Diarrhea Virus Replication
Zhiran Shao1, Siqi Ma1, FengSiyue Gao1
1College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China.
International Journal of Molecular Sciences
|March 14, 2026
Summary
Bovine Viral Diarrhea Virus (BVDV) exploits host long non-coding RNA lncSMIM14 to enhance viral replication. This pathway involves the endocytosis regulator Rab3a, offering potential antiviral targets.
Area of Science:
- Virology
- Molecular Biology
- Host-Pathogen Interactions
Background:
- Bovine Viral Diarrhea Virus (BVDV) causes significant economic losses in the cattle industry.
- Long non-coding RNAs (lncRNAs) are critical regulators in biological processes, including viral infections, but their role in BVDV replication is unclear.
Purpose of the Study:
- To identify and characterize host lncRNAs involved in BVDV replication.
- To elucidate the molecular mechanism by which lncRNAs regulate BVDV infection.
Main Methods:
- Identification of differentially expressed lncRNAs in BVDV-infected MDBK cells.
- Functional analysis of lncSMIM14 using overexpression and knockdown techniques.
- Investigation of the interaction between lncSMIM14, Rab3a, and BVDV replication using molecular and cellular assays.
Main Results:
- lncSMIM14 was identified as a host factor upregulated during BVDV infection.
- Overexpression of lncSMIM14 enhanced BVDV replication, while knockdown inhibited it.
- lncSMIM14 positively regulates Rab3a expression, which is essential for BVDV replication via endocytosis.
Conclusions:
- BVDV hijacks the host lncSMIM14-Rab3a axis to promote viral replication through Rab3a-mediated endocytosis.
- The lncSMIM14-Rab3a pathway represents a novel host mechanism exploited by BVDV.
- This axis offers potential new targets for developing antiviral strategies against BVDV.
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