| Literature DB >> 20052599 |
Sarah Costers1, David J Lefebvre, Jan Van Doorsselaere, Merijn Vanhee, Peter L Delputte, Hans J Nauwynck.
Abstract
Glycoprotein 4 (GP4) of porcine reproductive and respiratory syndrome virus (PRRSV) contains a highly variable neutralizing epitope. The present study aimed to investigate whether this epitope is susceptible to immunoselection by antibodies in vitro. Cultivation of PRRSV in vitro in the continuous presence of neutralizing monoclonal antibodies (mAbs) directed against this epitope resulted in the selection of mAb-resistant PRRSV strains within five passages. Comparison of the GP4 amino acid (aa) sequence of the original PRRSV strain with the GP4 aa sequences of the mAb-resistant PRRSV strains revealed aa substitutions within this epitope. In conclusion, this study shows that the neutralizing epitope on GP4 is susceptible to immunoselection by antibodies in vitro.Entities:
Mesh:
Substances:
Year: 2010 PMID: 20052599 DOI: 10.1007/s00705-009-0582-7
Source DB: PubMed Journal: Arch Virol ISSN: 0304-8608 Impact factor: 2.574