Bovine ocular squamous-cell carcinoma: lymphocyte response to phytohaemagglutinin and tumour antigen
- PMID: 497111
- PMCID: PMC2010090
- DOI: 10.1038/bjc.1979.226
Bovine ocular squamous-cell carcinoma: lymphocyte response to phytohaemagglutinin and tumour antigen
Abstract
The presence of ocular squamous-cell carcinomas in cattle was associated with significantly lower blastogenic response of peripheral-blood cultures to PHA than that of age-matched control cattle. The difference in blastogenic response was more marked when the external diameter of the tumour exceeded 2 cm. Cattle with aquamous-cell carcinomas had cell-mediated immunity against tumour extracts, as measured by the leucocyte adherence inhibition (LAI) microassay. The LAI reaction against tumour extracts was directly proportional to the general level of cell-mediated immunity as demonstrated by the lymphoproliferative response to PHA.
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