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Updated: Dec 25, 2025
RNA-seq Analysis of Transcriptomes in Thrombin-treated and Control Human Pulmonary Microvascular Endothelial Cells
Published on: February 13, 2013
Assessment of viral RNA in idiopathic pulmonary fibrosis using RNA-seq
Qinyan Yin1, Michael J Strong2, Yan Zhuang1
1Section of Pulmonary Diseases, Critical Care and Environmental Medicine, Department of Medicine, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA, 70112, USA.
Background:
Numerous publications suggest an association between herpes virus infection and idiopathic pulmonary fibrosis (IPF). These reports have employed immunohistochemistry, in situ hybridization and/or PCR, which are susceptible to specificity artifacts.
Methods:
We investigated the possible association between IPF and viral RNA expression using next-generation sequencing, which has the potential to provide a high degree of both sensitivity and specificity. We quantified viral RNA expression for 740 viruses in 28 IPF patient lung biopsy samples and 20 controls. Key RNA-seq results were confirmed using Real-time RT-PCR for select viruses (EBV, HCV, herpesvirus saimiri and HERV-K).
Results:
We identified sporadic low-level evidence of viral infections in our lung tissue specimens, but did not find a statistical difference for expression of any virus, including EBV, herpesvirus saimiri and HERV-K, between IPF and control lungs.
Conclusions:
To the best of our knowledge, this is the first publication that employs RNA-seq to assess whether viral infections are linked to the pathogenesis of IPF. Our results do not address the role of viral infection in acute exacerbations of IPF, however, this analysis patently did not support an association between herpes virus detection and IPF.
Insights
This study investigated herpes virus and idiopathic pulmonary fibrosis (IPF) using next-generation sequencing. No statistical association was found between herpes virus detection and IPF pathogenesis.
Area of Science:
- Pulmonary Medicine
- Virology
- Genomics
Background:
- Previous studies suggested a link between herpes virus infection and idiopathic pulmonary fibrosis (IPF).
- Prior detection methods like immunohistochemistry, in situ hybridization, and PCR have limitations in specificity.
Purpose of the Study:
- To investigate the association between IPF and viral RNA expression using sensitive and specific next-generation sequencing (NGS).
- To quantify viral RNA expression in IPF patient lung tissues compared to controls.
Main Methods:
- Employed next-generation sequencing (NGS) to analyze viral RNA expression in 28 IPF lung biopsy samples and 20 controls.
- Quantified RNA expression for 740 viruses.
- Confirmed key findings for Epstein-Barr virus (EBV), hepatitis C virus (HCV), herpesvirus saimiri, and human endogenous retrovirus-K (HERV-K) using Real-time RT-PCR.
Main Results:
- Sporadic, low-level viral RNA evidence was detected in lung tissue specimens.
- No statistically significant difference in the expression of any virus, including EBV, herpesvirus saimiri, and HERV-K, was observed between IPF and control lungs.
Conclusions:
- This study is the first to use RNA-sequencing to explore the link between viral infections and IPF pathogenesis.
- The findings do not support an association between herpes virus detection and IPF.
- The role of viral infection in acute exacerbations of IPF was not addressed.
