Document Detail

Analysis of adenovirus sequestration in the liver, transduction of hepatic cells, and innate toxicity after injection of fiber-modified vectors.
MedLine Citation:
PMID:  15113916     Owner:  NLM     Status:  MEDLINE    
After intravenous administration, adenovirus (Ad) vectors are predominantly sequestered by the liver. Delineating the mechanisms for Ad accumulation in the liver is crucial for a better understanding of Ad clearance and Ad-associated innate toxicity. To help address these issues, in this study, we used Ad vectors with different fiber shaft lengths and either coxsackievirus-Ad receptor (CAR)-interacting Ad serotype 9 (Ad9) or non-CAR-interacting Ad35 fiber knob domains. We analyzed the kinetics of Ad vector accumulation in the liver, uptake into hepatocytes and Kupffer cells, and induction of cytokine expression and release in response to systemic vector application. Immediately after intravenous injection, all Ad vectors accumulated equally efficiently in the liver; however, only genomes of long-shafted Ads were maintained in the liver tissue over time. We found that Kupffer cell uptake of long-shafted Ads was mediated by the fiber knob domain and was CAR independent. The short-shafted Ads were unable to efficiently interact with hepatocellular receptors and were not taken up by Kupffer cells. Moreover, our studies indicated that Kupffer cells were not the major reservoir for the observed accumulation of Ads (used in this study) in the liver within the first 30 min after virus infusion. The lower level of liver cell transduction by short-shafted Ads correlated with a significantly reduced inflammatory anti-Ad response as well as liver damage induced by the systemic administration of these vectors. This study contributes to a better understanding of the biology of systemically applied Ad and will help in designing safer vectors that can efficiently transduce target tissues.
Dmitry M Shayakhmetov; Zong-Yi Li; Shaoheng Ni; André Lieber
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of virology     Volume:  78     ISSN:  0022-538X     ISO Abbreviation:  J. Virol.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-04-28     Completed Date:  2004-05-27     Revised Date:  2013-04-18    
Medline Journal Info:
Nlm Unique ID:  0113724     Medline TA:  J Virol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5368-81     Citation Subset:  IM    
Division of Medical Genetics, University of Washington, Seattle, WA 98195, USA.
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MeSH Terms
Adenoviridae / genetics*,  pathogenicity
Alanine Transaminase / blood
Cytokines / genetics
Genetic Vectors / genetics,  toxicity*
Hepatocytes / virology*
Interleukin-6 / blood
Kupffer Cells / virology
Liver / virology*
Mice, Inbred C57BL
Receptors, Virus / physiology
Tumor Necrosis Factor-alpha / analysis
Grant Support
Reg. No./Substance:
0/Cytokines; 0/Interleukin-6; 0/Receptors, Virus; 0/Tumor Necrosis Factor-alpha; EC Transaminase

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