CD4⁺CD25^hiCD127^low regulatory T cells were up-regulated in OSCC patients.

<p>(a) Percentage of CD4⁺CD25^hi T cells amongst CD4⁺T cells in OSCC patients and healthy donors; (b) Percentage of CD4⁺CD25^hiCD127^low T cells amongst CD4⁺ T cells in OSCC patients and healthy donors; (c) Percentage of CD4⁺CD25^hi CD127^nil T cells amongst CD4⁺ T cells in OSCC patients and healthy donors; (d) Ratio of CD8 T cells/CD4⁺CD25^hiCD127^low T cells in OSCC patients and healthy donors; Each symbol represents an individual person and the narrow bar represents the mean percentage of the specific cell population.