Activated human B lymphocytes express three CTLA-4 counterreceptors that costimulate T-cell activation.Vassiliki A. Boussiotis, Lee M. Nadler, G S Gray et al.|Proceedings of the National Academy of Sciences|1993Cited by 206
Induction of T cell clonal anergy results in resistance, whereas CD28-mediated costimulation primes for susceptibility to Fas- and Bax-mediated programmed cell deathVassiliki A. Boussiotis, L M Nadler, Benjamin Lee et al.|The Journal of Immunology|1997Cited by 66