compound, stable antibody-producing cell line, composition, methods for modulating an immune response in an individual and for treating and / or preventing disease, uses of a compound and / or composition and dendritic cells or precursors thereof, methods to enrich and detect dendritic cells or a subset or precursors thereof, polypeptide, vector polynucleotide, host cell, transgenic plant, transgenic non-human animal, extract, process for preparing a compound or polypeptide, enriched dendritic cell population and / or precursors expanded dendritic cell population and / or precursors thereof, methods for identifying a molecule that binds to a polypeptide and screening for a compound that binds to a polypeptide, use of a polypeptide, a polynucleotide, a vector , a host cell, a transgenic plant, an extract, a cell population and / or a composition. tion, method for producing a compound, and kit.