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Vaccinia viruses with mutations in the E3L gene as potential replication-competent, attenuated vaccines: Scarification vaccination

Summary In this study, we evaluated the efficacy of vaccinia virus (VACV) containing mutations in the E3L virulence gene to protect mice against a lethal poxvirus challenge after vaccination by scarification. VACV strains with mutations in the E3L gene had significantly decreased pathogenicity, even...

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Published in:Vaccine 2008-06, Vol.26 (23), p.2860-2872
Main Authors: Jentarra, Garilyn M, Heck, Michael C, Youn, Jin Won, Kibler, Karen, Langland, Jeffrey O, Baskin, Carole R, Ananieva, Olga, Chang, Yung, Jacobs, Bertram L
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cited_by cdi_FETCH-LOGICAL-c609t-1053bcd80ea23a7823fe947d3943cec6a47914ea4c2bc3a04e97791247552e603
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container_end_page 2872
container_issue 23
container_start_page 2860
container_title Vaccine
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creator Jentarra, Garilyn M
Heck, Michael C
Youn, Jin Won
Kibler, Karen
Langland, Jeffrey O
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Ananieva, Olga
Chang, Yung
Jacobs, Bertram L
description Summary In this study, we evaluated the efficacy of vaccinia virus (VACV) containing mutations in the E3L virulence gene to protect mice against a lethal poxvirus challenge after vaccination by scarification. VACV strains with mutations in the E3L gene had significantly decreased pathogenicity, even in immune deficient mice, yet retained the ability to produce a potent Th1-dominated immune response in mice after vaccination by scarification, while protecting against challenge with wild type, pathogenic VACV. Initial experiments were done using the mouse-adapted, neurovirulent Western Reserve (WR) strain of vaccinia virus. Testing of the full E3L deletion mutation in the Copenhagen and NYCBH strains of VACV, which are more appropriate for use in humans, produced similar results. These results suggest that highly attenuated strains of VACV containing mutations in E3L have the potential for use as scarification administered vaccines.
doi_str_mv 10.1016/j.vaccine.2008.03.044
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subjects Administration, Intranasal
Allergy and Immunology
Animals
Antibodies, Viral - analysis
Antibodies, Viral - biosynthesis
Antiviral Agents - pharmacology
Applied microbiology
Biological and medical sciences
Cells, Cultured
Comet Assay
Cricetinae
Cytokines - biosynthesis
Drug Resistance, Viral - genetics
E3L
Female
Fundamental and applied biological sciences. Psychology
Genes, Viral - genetics
Genes, Viral - immunology
Immune response
Immunity, Cellular - immunology
Interferons - pharmacology
Kinases
Laboratories
Mice
Mice, Inbred BALB C
Mice, Inbred C57BL
Mice, SCID
Microbiology
Mutation
Mutation - genetics
Mutation - immunology
Neutralization Tests
Pathogens
Poxvirus
Rabbits
Smallpox
Smallpox vaccine
Spleen - cytology
Spleen - immunology
Vaccines
Vaccines, antisera, therapeutical immunoglobulins and monoclonal antibodies (general aspects)
Vaccines, Attenuated - administration & dosage
Vaccines, Attenuated - genetics
Vaccines, Attenuated - immunology
Vaccinia
Vaccinia - immunology
Vaccinia - prevention & control
Vaccinia virus
Vaccinia virus - genetics
Viral Vaccines - administration & dosage
Viral Vaccines - genetics
Viral Vaccines - immunology
Virus Replication
title Vaccinia viruses with mutations in the E3L gene as potential replication-competent, attenuated vaccines: Scarification vaccination
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