It was demonstrated that all vitiligo patients, independently of the disease stage, have a significant decrease in the total number of T cells and an elevated level of peripheral blood lymphocytes and activated natural killers (CD56). The low level of T lymphocytes is associated with the increase in the number of CD3(+)4(+)8(+) cells, which are characterized by a faster apoptosis induction. The elevated level of B lymphocytes in peripheral blood in vitiligo is due to the significant increase in the number of B cells of all the stages of differentiation, suggesting a general activation of the whole B-cell immunity.
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