Therapeutic targeting of PD-1/PD-L1 blockade by novel small-molecule inhibitors recruits cytotoxic T cells into solid tumor microenvironment ============================================================================================================================================ * Rita C. Acúrcio * Sabina Pozzi * Barbara Carreira * Marta Pojo * Nuria Gómez-Cebrián * Sandra Casimiro * Adelaide Fernandes * Andreia Barateiro * Vitor Farricha * Joaquim Brito * Ana Paula Leandro * Jorge A R Salvador * Luís Graça * Leonor Puchades-Carrasco * Luís Costa * Ronit Satchi-Fainaro * Rita C. Guedes * Helena F. Florindo