Phenotypic analysis of cells in bronchoalveolar lavage fluid and peripheral blood of maedi visna-infected sheep.

Abstract:

:A phenotypic analysis of bronchoalveolar lavage fluid (BALF) and peripheral blood (PB) cells in maedi visna virus (MVV)-infected sheep has been performed. The differential cell count in BALF from MVV-infected animals was characterized by a significant increase (P < 0.05) in lymphocytes and neutrophils. Lymphocyte phenotyping in BALF from MVV-infected sheep showed a significant decrease (P < 0.05) of CD4+ cells, a significant increase (P < 0.05) of CD8+ cells and a significant inversion (P < 0.001) of the CD4+/CD8+ ratio. CD5+ lymphocytes were also significantly decreased (P < 0.05). Gamma delta T cells and B cells did not differ significantly when compared with the controls. No correlation was observed between BALF and PB lymphocyte phenotypes. BALF macrophages from MVV-infected animals showed increased MHC class II expression and BALF lymphocytes from the same animals demonstrated up-regulation of LFA-1 and LFA-3 expression. These findings and their relationship with lentiviral pathogenesis are discussed.

journal_name

Clin Exp Immunol

authors

Luján L,Begara I,Collie DD,Watt NJ

doi

10.1111/j.1365-2249.1993.tb05894.x

subject

Has Abstract

pub_date

1993-02-01 00:00:00

pages

272-6

issue

2

eissn

0009-9104

issn

1365-2249

journal_volume

91

pub_type

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