Journal article
Basolateral Localization of Fiber Receptors Limits Adenovirus Infection from the Apical Surface of Airway Epithelia
The Journal of biological chemistry, Vol.274(15), pp.10219-10226
04/09/1999
DOI: 10.1074/jbc.274.15.10219
PMID: 10187807
Abstract
Recent identification of two receptors for the adenovirus fiber protein, coxsackie B and adenovirus type 2 and 5 receptor (CAR), and the major histocompatibility complex (MHC) Class I alpha-2 domain allows the molecular basis of adenoviral infection to be investigated. Earlier work has shown that human airway epithelia are resistant to infection by adenovirus. Therefore, we examined the expression and localization of CAR and MHC Class I in an in vitro model of well differentiated, ciliated human airway epithelia. We found that airway epithelia express CAR and MHC Class I. However, neither receptor was present in the apical membrane; instead, both were polarized to the basolateral membrane. These findings explain the relative resistance to adenovirus infection from the apical surface. In contrast, when the virus was applied to the basolateral surface, gene transfer was much more efficient because of an interaction of adenovirus fiber with its receptors. In addition, when the integrity of the tight junctions was transiently disrupted, apically applied adenovirus gained access to the basolateral surface and enhanced gene transfer. These data suggest that the receptors required for efficient infection are not available on the apical surface, and interventions that allow access to the basolateral space where fiber receptors are located increase gene transfer efficiency.
Details
- Title: Subtitle
- Basolateral Localization of Fiber Receptors Limits Adenovirus Infection from the Apical Surface of Airway Epithelia
- Creators
- Robert W WaltersTeresa GrunstJeffrey M BergelsonRobert W FinbergMichael J WelshJoseph Zabner
- Resource Type
- Journal article
- Publication Details
- The Journal of biological chemistry, Vol.274(15), pp.10219-10226
- DOI
- 10.1074/jbc.274.15.10219
- PMID
- 10187807
- NLM abbreviation
- J Biol Chem
- ISSN
- 0021-9258
- eISSN
- 1083-351X
- Language
- English
- Date published
- 04/09/1999
- Academic Unit
- Neurology; Molecular Physiology and Biophysics; Pulmonary, Critical Care, and Occupational Medicine; Neurosurgery; Internal Medicine
- Record Identifier
- 9984020777602771
Metrics
23 Record Views