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1996-02-27
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Document 0672
DOCN M9630672
TI Characterization of mouse nasal lymphocytes isolated by enzymatic
extraction with collagenase.
DT 9603
AU Asanuma H; Inaba Y; Aizawa C; Kurata T; Tamura S; Department of
Pathology, National Institute of Health, Tokyo,; Japan.
SO J Immunol Methods. 1995 Nov 16;187(1):41-51. Unique Identifier :
AIDSLINE MED/96085237
AB A reproducible method for isolation of mouse nasal lymphocytes was
developed. The cells were released from tissue fragments of dissected
mouse nose by enzyme extraction with collagenase and separated by a
stepwise Percoll gradient centrifugation. The partially purified nasal
lymphocyte fraction from normal BALB/c mice contained CD4+ T cells
(18-23%), CD8+ T cells (7-10%) and B cells (20-38%), when analysed with
a FACScan fluorescence analyser. The ratio of T to B cells and that of
CD4+ to CD8+ T cells in the nasal cell fraction were about twice as high
as those in Peyer's path lymphocytes. The nasal lymphocyte fraction from
the mice infected with influenza virus was then characterized. The nasal
lymphocytes contained a twice larger number of CD4+ and a three times
larger number of CD8+ T cells than those of normal mice 7 days after
infection. They produced IFN-gamma which increased after infection. They
contained the cells secreting influenza virus-specific IgA and IgG
antibodies 4 weeks after infection. Moreover, the nasal lymphocytes from
infected C3H mice lysed the virus infected-target cells. These results
suggest that this method can successfully be used for investigating
cellular dynamics of mucosal immunity in the upper respiratory tract of
experimental animals.
DE Animal Antibodies, Viral/*ANALYSIS Cell Separation/METHODS
Collagenases Cytotoxicity Tests, Immunologic CD4-CD8 Ratio Female
IgA/ANALYSIS IgG/ANALYSIS Immunologic Techniques
Influenza/*IMMUNOLOGY Interferon Type II/ANALYSIS
Interleukin-4/ANALYSIS Lymphocyte Subsets/*IMMUNOLOGY Mice Mice,
Inbred BALB C Mice, Inbred C3H Nasal Mucosa/*IMMUNOLOGY/VIROLOGY
Orthomyxoviridae/*IMMUNOLOGY Peyer's Patches/IMMUNOLOGY JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).