Figure 3

Immunophenotypic profile of tumor infiltrating lymphocyte in canine mammary carcinomas. Analysis of tumor infiltrating T-cells, B-lymphocytes and T-cell subsets from MC-BMT or MC (A), further subcategorized according to the absence (-) or presence (+) of lymph node metastasis (-) (B). Lymphocyte populations and subsets were identified by flow cytometric immunostaining as described in Material and Methods. Data were expressed as percentage of positive cells within gated lymphocytes and CD4⁺/CD8⁺ T-cell ratio. Significant differences at p < 0.05 are highlighted by asterisk.