1. The Coxsackievirus and Adenovirus Receptor Has a Short Half-Life in Epithelial Cells
- Author
-
Poornima Kotha Lakshmi Narayan, James M. Readler, Mahmoud S. Alghamri, Trisha L. Brockman, Ran Yan, Priyanka Sharma, Vladislav Snitsarev, Katherine J. D. A. Excoffon, and Abimbola O. Kolawole
- Subjects
human adenovirus ,coxsackievirus and adenovirus receptor ,half-life ,polarized epithelia ,Medicine - Abstract
The coxsackievirus and adenovirus receptor (CAR) is an essential cellular protein that is involved in cell adhesion, cell signaling, and viral infection. The 8-exon encoded isoform (CAREx8) resides at the apical surface of polarized epithelia, where it is accessible as a receptor for adenovirus entering the airway lumen. Given its pivotal role in viral infection, it is a target for antiviral strategies. To understand the regulation of CAREx8 and determine the feasibility of receptor downregulation, the half-life of total and apical localized CAREx8 was determined and correlated with adenovirus transduction. Total and apical CAREx8 has a relatively short half-life of approximately 2 h. The half-life of apical CAREx8 correlates well with adenovirus transduction. These results suggest that antiviral strategies that aim to degrade the primary receptor for apical adenovirus infection will be effective within a relatively short time frame after application.
- Published
- 2022
- Full Text
- View/download PDF