First Author | Fang M | Year | 2005 |
Journal | J Immunol | Volume | 175 |
Issue | 10 | Pages | 6829-36 |
PubMed ID | 16272340 | Mgi Jnum | J:119697 |
Mgi Id | MGI:3703143 | Doi | 10.4049/jimmunol.175.10.6829 |
Citation | Fang M, et al. (2005) Antibodies and CD8+ T cells are complementary and essential for natural resistance to a highly lethal cytopathic virus. J Immunol 175(10):6829-36 |
abstractText | It is believed that CD8+ T lymphocytes or Abs can independently clear many primary viral infections, including those caused by Orthopoxviruses (OPV), a genus that includes the human pathogens variola and monkeypox and the vaccine species vaccinia virus. However, most experiments addressing the role of Abs and CD8+ T cells in protection have used viruses that are not specific for the host. In the present study, we used the mouse-specific OPV ectromelia virus and mice deficient in CD40, B cells, or CD8+ T cells and adoptive transfers of CD8+ T or B lymphocytes to show that the protection afforded by CD8+ T cells is incomplete. Despite sustained CD8+ T cell responses, in the absence of Ab responses ectromelia virus persists. This results in delayed disease and inexorably leads to death. Therefore, CD8+ T lymphocytes and Abs are not redundant but complementary and essential to survive infections with a highly pathogenic viruses in the natural host. |