RRC ID 81933
Author Yamamoto S, Okumura S, Kobayashi R, Maeda Y, Takahashi F, Tanabe T.
Title Bovine respiratory syncytial virus enhances the attachment of Trueperella pyogenes to cells.
Journal J Vet Med Sci
Abstract In cattle, bovine respiratory syncytial virus (BRSV) is associated with secondary bacterial infections; however, the mechanisms of the interaction between BRSV and bacteria are unclear. Trueperella pyogenes (T. pyogenes) causes pneumonia in cattle and is involved in secondary infections following viral infections. In this study, we evaluated the effect of BRSV infection on the adhesion of T. pyogenes to BRSV-infected cells. BRSV infection significantly enhanced the adhesion of T. pyogenes to cells in a multiplicity of infection- and time-dependent manner. The BRSV-mediated change in the adhesion of T. pyogenes was widely observed in various cell types and bacterial strains. The results from the gentamicin protection assay showed that BRSV infection did not affect the intracellular invasion ability of T. pyogenes. Furthermore, adhesion assays conducted using BRSV G protein-expressing cells and anti-BRSV G antibodies revealed that the increased adhesion of T. pyogenes to cells was mediated by the G protein of BRSV. In addition, immunofluorescence assay revealed the colocalization of BRSV G protein and T. pyogenes. Thus, BRSV infection can potentially lead to bovine respiratory disease complex by promoting the adhesion of T. pyogenes to the infected cells.
Volume 86(10)
Pages 1068-1075
Published 2024-10-1
DOI 10.1292/jvms.24-0068
PMID 39111845
PMC PMC11442402
MeSH Actinomycetaceae* Animals Bacterial Adhesion* Cattle Cattle Diseases / microbiology Cattle Diseases / virology Respiratory Syncytial Virus Infections* / veterinary Respiratory Syncytial Virus Infections* / virology Respiratory Syncytial Virus, Bovine*
Resource
DNA material CSII-EF-RfA (RDB04387)