Described herein protein steroid conjugates whereby a glucocorticoid compound is conjugated to a binding agent which is preferably an antibody. These are useful, for example, for the target-specific delivery of glucocorticoids (GCs) to cells.Se describen aquí conjugados de esteroide de proteína que son útiles, por ejemplo, para la entrega específica a objetivo de glucocorticoides (GCs) a las células.