Replication-attenuated Human Adenoviral Type 4 vectors elicit capsid dependent enhanced innate immune responses that are partially dependent upon interactions with the complement system.

Journal Article (Journal Article)

Human Adenovirus Type 4 (HAdV-4) is responsible for epidemic outbreaks of Acute Respiratory Disease (especially in military recruits), and is known to cause significant morbidity with several reported cases of mortality. However, we do not understand why this serotype causes such high morbidity, and have little insight into the immunobiology of HAdV-4 infections. We have now developed a replication attenuated HAdV-4 vector system, and through it, demonstrate that HAdV-4 virions have enhanced infectivity of certain cell types and reveal aspects of the serotype-specific heightened innate immunogenicity of infectious HAdV-4 capsids both in vitro and in vivo. We further found that elements of this serotype-specific immunogenicity were dependent upon interactions with the complement system. These findings provide insights into the mechanisms possibly underlying the known morbidity accompanying wild-type HAdV-4 infections as well as highlight important considerations when considering development of alternative serotype vectors.

Full Text

Duke Authors

Cited Authors

  • Hartman, ZC; Appledorn, DM; Serra, D; Glass, O; Mendelson, TB; Clay, TM; Amalfitano, A

Published Date

  • May 10, 2008

Published In

Volume / Issue

  • 374 / 2

Start / End Page

  • 453 - 467

PubMed ID

  • 18280530

Pubmed Central ID

  • PMC2720025

International Standard Serial Number (ISSN)

  • 0042-6822

Digital Object Identifier (DOI)

  • 10.1016/j.virol.2008.01.017


  • eng

Conference Location

  • United States