Delayed IgG-mediated clearance of herpes simplex virus type 1 from the CNS but not foodpad during the early stages of infection

Possible result of relative integrity of the blood-brain barrier

R. R. McKendall

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Following footpad inoculation in mice, herpes simplex virus type 1 spreads along nerves to the spinal cord where a myelitis causes hind limb paralysis beginning on day 6. Neutralizing antibody effectively prevents this illness only if given within 72 h. We therefore studied the timing of blood-brain barrier (BBB) disruption relative to the appearance of virus and inflammatory cell infiltrates in the spinal cord. Virus was detectable in dorsal root ganglion and spinal cord explants by 48 h. By 72 h, mononuclear cell infiltrates were evident in the spinal cord. By day 4, high titres of virus were demonstrable in the spinal cord. On day 6 125I-labelled IgG tracers penetrated the spinal cord BBB. In addition, using a passive transfer model, mice given neutralizing IgG completely cleared footpad virus within 72 h while brain virus titres were unaffected by IgG treatment up to day 7. These observations indicate that the BBB may prevent IgG-mediated virus clearance during early stages of infection.

Original languageEnglish (US)
Pages (from-to)1965-1972
Number of pages8
JournalJournal of General Virology
Volume64
Issue number9
StatePublished - 1983

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Human Herpesvirus 1
Blood-Brain Barrier
Spinal Cord
Immunoglobulin G
Infection
Viruses
Viral Load
Myelitis
Spinal Ganglia
Neutralizing Antibodies
Fetal Blood
Paralysis
Extremities
Brain

ASJC Scopus subject areas

  • Immunology
  • Virology

Cite this

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title = "Delayed IgG-mediated clearance of herpes simplex virus type 1 from the CNS but not foodpad during the early stages of infection: Possible result of relative integrity of the blood-brain barrier",
abstract = "Following footpad inoculation in mice, herpes simplex virus type 1 spreads along nerves to the spinal cord where a myelitis causes hind limb paralysis beginning on day 6. Neutralizing antibody effectively prevents this illness only if given within 72 h. We therefore studied the timing of blood-brain barrier (BBB) disruption relative to the appearance of virus and inflammatory cell infiltrates in the spinal cord. Virus was detectable in dorsal root ganglion and spinal cord explants by 48 h. By 72 h, mononuclear cell infiltrates were evident in the spinal cord. By day 4, high titres of virus were demonstrable in the spinal cord. On day 6 125I-labelled IgG tracers penetrated the spinal cord BBB. In addition, using a passive transfer model, mice given neutralizing IgG completely cleared footpad virus within 72 h while brain virus titres were unaffected by IgG treatment up to day 7. These observations indicate that the BBB may prevent IgG-mediated virus clearance during early stages of infection.",
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