Preliminary characterization of inflammatory infiltrates in response to Rickettsia prowazekii reinfection in man: immunohistology.

J. S. Dumler, C. L. Wisseman

Research output: Contribution to journalArticle

Abstract

The local perivascular mononuclear cell inflammatory infiltrate (PVI) response to intradermal (ID) challenge with viable R. prowazekii was studied in a typhus-immune subject. An immunohistochemical method for specific mononuclear cell markers was used on skin punch biopsies taken 6, 24 and 48 hr after challenge. By 24 to 48 hr, the histologic findings were consistent with a delayed-type hypersensitivity reaction (DTHR). Both CD4+ and CD8+ T lymphocytes dominated the PVI at 48 h. CD8+ cells entered the PVI more rapidly than CD4+ cells. Local control of R. prowazekii challenge in an immune human subject was associated with recruitment into the PVI of T lymphocytes which are rich sources of gamma-interferon, and CD8+ T cells which are potentially cytotoxic for R. typhi-infected cells.

Original languageEnglish (US)
Pages (from-to)45-51
Number of pages7
JournalActa Virologica
Volume36
Issue number1
StatePublished - Jan 1992
Externally publishedYes

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Rickettsia prowazekii
T-Lymphocytes
Epidemic Louse-Borne Typhus
Delayed Hypersensitivity
Interferon-gamma
Biopsy
Skin

ASJC Scopus subject areas

  • Immunology
  • Virology

Cite this

Preliminary characterization of inflammatory infiltrates in response to Rickettsia prowazekii reinfection in man : immunohistology. / Dumler, J. S.; Wisseman, C. L.

In: Acta Virologica, Vol. 36, No. 1, 01.1992, p. 45-51.

Research output: Contribution to journalArticle

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