Immunopathogenesis of hantavirus pulmonary syndrome and hemorrhagic fever with renal syndrome: Do CD8+ T cells trigger capillary leakage in viral hemorrhagic fevers
Department of Medicine, Division of Infectious Diseases and Immunology; Center for Infectious Disease and Vaccine Research
Immunity | Immunology and Infectious Disease | Immunology of Infectious Disease | Infectious Disease
There are many viruses known to cause viral hemorrhagic fevers in humans. The mechanisms causing hemorrhage are likely to vary among viruses. Some viruses, such as Marburg virus, are directly cytopathic to infected endothelial cells, suggesting infection of endothelial cells alone can cause hemorrhage. On the other hand, there are viruses which infect endothelial cells without causing any cytopathic effects, suggesting the involvement of host immune responses in developing hemorrhage. Typical examples of these include viruses of the hantavirus species. We hypothesize that impairment of endothelial cell's defense mechanisms against cytotoxic CD8+ T cells is the mechanism of capillary leakage in hantavirus pulmonary syndrome and hemorrhagic fever with renal syndrome, which may be common to other viral hemorrhagic fevers. CD8+ T cells may be a potential target for therapy of some viral hemorrhagic fevers.
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Citation: Immunol Lett. 2007 Nov 15;113(2):117-20. Epub 2007 Sep 12. DOI: 10.1016/j.imlet.2007.08.003 Link to article on publisher's site
Terajima, Masanori; Hayasaka, Daisuke; Maeda, Ken; and Ennis, Francis A., "Immunopathogenesis of hantavirus pulmonary syndrome and hemorrhagic fever with renal syndrome: Do CD8+ T cells trigger capillary leakage in viral hemorrhagic fevers" (2007). Infectious Diseases and Immunology Publications and Presentations. 251.