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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bogue, Rebecka Salek-Ardakani, Shahram Goulding, John Tahiliani, Vikas Croft, Michael |
| Description | Country affiliation: United States Author Affiliation: Goulding J ( Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, San Diego, CA 92037, USA.) |
| Abstract | The precise immune components required for protection against a respiratory Orthopoxvirus infection, such as human smallpox or monkeypox, remain to be fully identified. In this study, we used the virulent Western Reserve strain of vaccinia virus (VACV-WR) to model a primary respiratory Orthopoxvirus infection. Naive mice infected with VACV-WR mounted an early CD8 T cell response directed against dominant and subdominant VACV-WR Ags, followed by a CD4 T cell and Ig response. In contrast to other VACV-WR infection models that highlight the critical requirement for CD4 T cells and Ig, we found that only mice deficient in CD8 T cells presented with severe cachexia, pulmonary inflammation, viral dissemination, and 100% mortality. Depletion of CD8 T cells at specified times throughout infection highlighted that they perform their critical function between days 4 and 6 postinfection and that their protective requirement is critically dictated by initial viral load and virulence. Finally, the ability of adoptively transferred naive CD8 T cells to protect RAGâ »/â » mice against a lethal VACV-WR infection demonstrated that they are both necessary and sufficient in protecting against a primary VACV-WR infection of the respiratory tract. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| DOI | 10.4049/jimmunol.1200799 |
| Journal | The Journal of Immunology |
| Issue Number | 5 |
| Volume Number | 189 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2012-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cd8-positive T-lymphocytes Immunology Pathology Respiratory Tract Infections Virology Vaccinia Animals Disease Models, Animal Lung Mice Mice, Inbred C57bl Mice, Knockout Mice, Mutant Strains Recovery Of Function Mortality Severity Of Illness Index Vaccinia Virus Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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