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Recurrent Respiratory Syncytial Virus Infection in a CD14-Deficient Patient

BACKGROUND: Recurrent respiratory syncytial virus (RSV) infection requiring hospitalization is rare and the underlying mechanism is unknown. We aimed to determine the role of CD14-mediated immunity in the pathogenesis of recurrent RSV infection. METHODS: We performed genotyping and longitudinal immu...

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Detalles Bibliográficos
Autores principales: Besteman, Sjanna B, Phung, Emily, Raeven, Henriette H M, Amatngalim, Gimano D, Rumpret, Matevž, Crabtree, Juliet, Schepp, Rutger M, Rodenburg, Lisa W, Siemonsma, Susanna G, Verleur, Nile, van Slooten, Rianne, Duran, Karen, van Haaften, Gijs W, Beekman, Jeffrey M, Chang, Lauren A, Meyaard, Linde, van der Bruggen, Tjomme, Berbers, Guy A M, Derksen, Nicole, Nierkens, Stefan, Morabito, Kaitlyn M, Ruckwardt, Tracy J, Kurt-Jones, Evelyn A, Golenbock, Douglas, Graham, Barney S, Bont, Louis J
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9400420/
https://www.ncbi.nlm.nih.gov/pubmed/35429403
http://dx.doi.org/10.1093/infdis/jiac114
Descripción
Sumario:BACKGROUND: Recurrent respiratory syncytial virus (RSV) infection requiring hospitalization is rare and the underlying mechanism is unknown. We aimed to determine the role of CD14-mediated immunity in the pathogenesis of recurrent RSV infection. METHODS: We performed genotyping and longitudinal immunophenotyping of the first patient with a genetic CD14 deficiency who developed recurrent RSV infection. We analyzed gene expression profiles and interleukin (IL)-6 production by patient peripheral blood mononuclear cells in response to RSV pre- and post-fusion (F) protein. We generated CD14-deficient human nasal epithelial cells cultured at air-liquid interface (HNEC-ALI) of patient-derived cells and after CRISPR-based gene editing of control cells. We analyzed viral replication upon RSV infection. RESULTS: Sanger sequencing revealed a homozygous single-nucleotide deletion in CD14, resulting in absence of the CD14 protein in the index patient. In vitro, viral replication was similar in wild-type and CD14(−/−) HNEC-ALI. Loss of immune cell CD14 led to impaired cytokine and chemokine responses to RSV pre- and post-F protein, characterized by absence of IL-6 production. CONCLUSIONS: We report an association of recurrent RSV bronchiolitis with a loss of CD14 function in immune cells. Lack of CD14 function led to defective immune responses to RSV pre- and post-F protein without a change in viral replication.