A molecular basis for T-dependent B cell activation.

Abstract

This review has concentrated on the key molecules which regulate T-dependent B cell activation in the context of the structural architecture within secondary lymphoid tissue where B cell immune responses occur. CD40L clearly plays a key role in driving B cells to proliferate within germinal centers, and although the data is conflicting, there is some evidence that the induction of CD40L is dependent on costimulation through CD28.