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1996-01-30
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Document 0048
DOCN M9610048
TI Japanese encephalitis virus-specific proliferative responses of human
peripheral blood T lymphocytes.
DT 9601
AU Konishi E; Kurane I; Mason PW; Innis BL; Ennis FA; Department of Medical
Zoology, Kobe University School of; Medicine, Japan.
SO Am J Trop Med Hyg. 1995 Sep;53(3):278-83. Unique Identifier : AIDSLINE
MED/96033014
AB The T lymphocytes play an important role in prevention and recovery from
viral infections. To characterize T lymphocyte responses to Japanese
encephalitis (JE) virus infections, we analyzed JE virus-specific T
lymphocytes in peripheral blood mononuclear cells (PBMC) obtained from
seven JE patients and 10 vaccinees who had received a
formalin-inactivated, purified JE virus vaccine (Biken vaccine). These
PBMC were examined for proliferative responses against live JE virus, a
glutaraldehyde-fixed lysate of cells infected with JE virus, and
extracellular particles (EPs; subviral membrane vesicles released from
cells infected with recombinant vaccinia viruses encoding the JE virus
premembrane and envelope proteins). Japanese encephalitis virus-specific
T cell proliferation was demonstrated with PBMC from both patients and
vaccinees after stimulation with infectious JE virus or the lysate of JE
virus-infected cells. Proliferating PBMC included CD4+ T lymphocytes and
CD8+ T lymphocytes in responses to either form of JE viral antigens.
Responses to EPs were observed only with PBMC from some American
vaccinees whose PBMC also responded to the virus and lysate. These
results indicate that JE virus infection and immunization with an
inactivated JE vaccine induce JE virus-specific CD4+ and CD8+ T memory
lymphocytes that can be induced to proliferate by infectious JE virus
and noninfectious JE antigens.
DE Antibodies, Viral/BLOOD Antigens, Viral/IMMUNOLOGY CD4-Positive
T-Lymphocytes/IMMUNOLOGY CD8-Positive T-Lymphocytes/IMMUNOLOGY
Encephalitis Virus, Japanese/*IMMUNOLOGY Encephalitis,
Japanese/*IMMUNOLOGY Human *Lymphocyte Transformation Middle Age
Phenotype Radioimmunoprecipitation Assay Support, Non-U.S. Gov't
Support, U.S. Gov't, Non-P.H.S. Support, U.S. Gov't, P.H.S.
T-Lymphocytes/*IMMUNOLOGY Vaccines, Inactivated/IMMUNOLOGY Viral
Vaccines/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).