Some proteins in the transporter vesicles could, for example, be antibodies. So, the Golgi apparatus would package them into secretory vesicles to be released outside of the cell to fight a pathogen.

Given the extensive characterization of the secretory system and our ... that explains how RNAs are selected for packaging into extracellular vesicles from the vast pool of RNAs in the cytoplasm ...

Golgi transport and packaging into secretory vesicles 5) Cleavage to produce mature insulin. Mature insulin is stored in dense-core granules in two populations: RRP = ready releasable pool and RP ...