The role of antibody in recovery from alphavirus encephalitis

Diane Griffin, Beth Levine, William Tyor, Sukathida Ubol, Philippe Desprès

Research output: Contribution to journalArticle

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Abstract

Alphaviruses infect neurons in the brain and spinal cord and cause acute encephalomyelitis in a variety of mammals. The outcome of infection is determined by whether the neurons survive infection and this, in turn, is determined by the virulence of the virus and the age of the host at the time of infection. We have been studying Sindbis virus (SV) infection of mice as a model system for alphavirus-induced encephalomyelitis. Investigation of intracerebral infection of weanling mice with two different strains of SV has allowed us to analyze the role of the immune response in protection from fatal disease (virulent NSV strain) and in clearance of virus from the nervous system during non-fatal disease (less virulent SV AR339 strain). Neutralizing and non-neutralizing antibodies to the E1 and E2 surface glycoproteins can protect mice from fatal NSV infection when given before or after infection, while T cells are not protective. The mechanism of antibody-mediated protection is not known, but it is likely that more than one mechanism is involved and that different mechanisms are involved in pre-infection and post-infection treatment protection. Clearance of infectious virus from the nervous system of mice during recovery from non-fatal disease is accomplished by antibodies to the E2 glycoprotein. The process does not involve damage to the infected neurons and is independent of complement and mononuclear cells. Bivalent antibody is required and binds to the surface of the infected cell. initially release of virus by budding from the cell surface is prevented and, subsequently, intracellular virus replication is inhibited possibly through antiviral mechanisms induced in co-operation with interferon. This non-lytic mechanism for control of virus infection results in the prolonged presence of viral RNA in tissue and the need for prolonged intrathecal synthesis of antiviral antibody by B cells within the central nervous system.

Original languageEnglish (US)
Pages (from-to)155-161
Number of pages7
JournalImmunological Reviews
Volume159
StatePublished - Oct 1997

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Alphavirus
Encephalitis
Antibodies
Sindbis Virus
Infection
Encephalomyelitis
Virus Diseases
Viruses
Neurons
Nervous System
Antiviral Agents
Neurologic Mutant Mice
Virus Release
Membrane Glycoproteins
Viral RNA
Virus Replication
Interferons
Virulence
Mammals
Spinal Cord

ASJC Scopus subject areas

  • Immunology

Cite this

Griffin, D., Levine, B., Tyor, W., Ubol, S., & Desprès, P. (1997). The role of antibody in recovery from alphavirus encephalitis. Immunological Reviews, 159, 155-161.

The role of antibody in recovery from alphavirus encephalitis. / Griffin, Diane; Levine, Beth; Tyor, William; Ubol, Sukathida; Desprès, Philippe.

In: Immunological Reviews, Vol. 159, 10.1997, p. 155-161.

Research output: Contribution to journalArticle

Griffin, D, Levine, B, Tyor, W, Ubol, S & Desprès, P 1997, 'The role of antibody in recovery from alphavirus encephalitis', Immunological Reviews, vol. 159, pp. 155-161.
Griffin D, Levine B, Tyor W, Ubol S, Desprès P. The role of antibody in recovery from alphavirus encephalitis. Immunological Reviews. 1997 Oct;159:155-161.
Griffin, Diane ; Levine, Beth ; Tyor, William ; Ubol, Sukathida ; Desprès, Philippe. / The role of antibody in recovery from alphavirus encephalitis. In: Immunological Reviews. 1997 ; Vol. 159. pp. 155-161.
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