The invention relates to medical therapy using an agonist of the retinoic acid receptor-related orphan receptor gamma (RORγ) and provides adoptive cellular therapies using an agonist of RORγ, populations of lymphocyte cells that have been exposed to an agonist of RORγ, populations of dendritic cells that have been exposed to an agonist of RORγ, pharmaceutical compositions, and methods for enhancing therapeutic effects of lymphocyte cells and/or dendritic cells in a patient by administering an agonist of RORγ to a patient.
