ABSTRACT
Therapeutic macromolecules such as proteins are conventionally administered via bolus injection, an approach that presents significant limitations. Sustained-release biodegradable nano/microsphere depots, on the other hand, represent a more physiological delivery tool for biologics. Here, we focus on an emerging novel application of this technology, i.e., cytokine-encapsulated biodegradable microspheres as immune therapeutics. The overall pre-clinical experience, recent advances and the clinical potential of such formulations are discussed.
Declaration of interest
The author has ownership interest in Therapyx, Inc., which is developing microparticulate protein formulations as therapeutics.