T and B lymphocytes: two different cell populations for the "first defence barrier" at cutaneous and mucosal levels?

Data on lymphocyte biology indicate that the humoral system of B-cells is specifically active with precise analogies at all mucosal levels. Might there be a corresponding function for T-lymphocytes at the cutaneous structure level? Certain physiological findings appear to suggest that the two main lymphocyte populations share the role of "first defence barrier".