Abstract:The expression levels of CD26 and CD31 surface antigens, two adhesion/activation molecules with helper and suppressor activities, respectively, were found to be significantly higher on human colostral T cells (CD3+) than in autologous peripheral blood samples. These findings provide further phenotypical evidence that immune system T lymphocytes are compartmentalized in the mammary gland late in pregnancy and during lactation. The question of whether these overexpanded T lymphocyte populations in breast milk mo… Show more
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