Regulating T-cell differentiation through the polyamine spermidine by Carriche, GM, Almeida, L, Stüve, P, Velasquez, L, Dhillon-LaBrooy, A, Roy, U, Lindenberg, M, Strowig, T, Plaza-Sirvent, C, Ingo Schmitz, Lochner, M, Simon, AK, Sparwasser, T