We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
IgG-Complexed Adenoviruses Induce Human Plasmacytoid Dendritic Cell Activation and Apoptosis.
- Authors
Tran, Thi Thu Phuong; Tran, Tuan Hiep; Kremer, Eric J.
- Abstract
Following repeat exposure to many human adenoviruses (HAdVs), most adults harbour long-lived B- and T-cell responses. Combined, this response typically protects us for years from re-infection by the same HAdV type. In spite of these immune responses, some HAdV types are associated with persistent infections that constitute a life-threatening risk when an individual's T-cell response is compromised. By contrast, patients with B-cell deficiencies do not appear to be at a greater risk of HAdV disease. This dichotomy begs the question of the secondary role of anti-HAdV antibodies during host defence. In this study, we explored IgG-complexed (IC)-HAdV5 and primary human plasmacytoid dendritic cell (pDC) interactions. We found that IC-HAdV5 are efficiently internalized in pDCs, stimulate their activation through TLR9 signalling, and cause apoptosis. These data may help reconcile the enigma of robust immune response to HAdVs, while concurrently allowing persistence.
- Subjects
HUMAN adenoviruses; DENDRITIC cells; T cells; IMMUNE response; APOPTOSIS; ADULTS
- Publication
Viruses (1999-4915), 2021, Vol 13, Issue 9, p1699
- ISSN
1999-4915
- Publication type
Article
- DOI
10.3390/v13091699