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Six cell lines that were infected with Theileria annulata were compared for expression of a range of surface molecules. Immunofluorescence staining with the panel of monoclonal antibodies formulated for the Second Workshop was analysed by flow cytometry. Four lines generated from bovine peripheral blood mononuclear cells by exposure to sporozoites in vitro and one line generated in vivo from an infected calf were phenotypically similar. Phenotypic analysis of those lines did not demonstrate a monocyte or B cell origin, but indicated they were not derived from T cells. An uncloned line generated in vivo from an infected calf was CD3 + and γ/δ TCR + . The results indicate that a wider range of host cell types may be infected in vivo than suspected hitherto and that some of the cells may express an abnormal pattern of surface molecules. Both could have profound consequences for the pathogenesis of T. annulata infection. © 1993.

Original publication

DOI

10.1016/0165-2427(93)90189-B

Type

Journal article

Journal

Veterinary Immunology and Immunopathology

Publication Date

01/01/1993

Volume

39

Pages

275 - 282