Human Respiratory Syncytial Virus-induced immune signature of infection revealed by transcriptome analysis of clinical pediatric nasopharyngeal swab samples

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Nicolas de Lamballerie, Claire | Pizzorno, Andres | Dubois, Julia | Padey, Blandine | Julien, Thomas | Traversier, Aurélien | Carbonneau, Julie | Orcel, Elody | Lina, Bruno | Hamelin, Marie-Ève | Roche, Magali | Textoris, Julien | Boivin, Guy | Legras-Lachuer, Catherine | Terrier, Olivier | Rosa-Calatrava, Manuel

Edité par CCSD ; Oxford University Press -

International audience. Human Respiratory Syncytial Virus (HRSV) constitutes one the main causes of respiratory infection in neonates and infants worldwide. Transcriptome analysis of clinical samples using high-throughput technologies remains an important tool to better understand virus-host complex interactions in the real-life setting but also to identify new diagnosis/prognosis markers or therapeutics targets. A major challenge when exploiting clinical samples such as nasal swabs, washes or bronchoalveolar lavages is the poor quantity and integrity of nucleic acids. In this study, we applied a tailored transcriptomics workflow to exploit nasal wash samples from children who tested positive for HRSV. Our analysis revealed a characteristic immune signature as a direct reflection of HRSV pathogenesis and highlighted putative biomarkers of interest such as IP-10, TMEM190, MCEMP1 or TIMM23.

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