Exosomes and skin diseases

In the context of external page SKINTEGRITY.CH, we are particularly interested in treating and monitoring skin lesions with native and specifically engineered exosomes.

Delivering drugs to and across the skin represents a formidable challenge, especially for high molecular weight compounds that are poorly permeable across cell membranes. Our research is mainly aimed at tackling physiological and cellular barriers that are impeding therapeutics from reaching in sufficient amounts their target site whether it is intra- or extracellular. We are developing delivery systems at the macro- or nanoscale that can increase the concentration of active agents at their site of action. Among them, exosomes are of particular interest. These endogenously derived nanovesicles that can function as shuttles of various biomolecules and have the potential to be used as targeted, bioactive and hypoimmunogenic delivery systems. Among the factors limiting their translation into a therapeutic platform, one can cite the non-standardized technologies to characterize and produce such vesicles, as well as the inefficient tools to load their therapeutic cargo. Our goal is to address these limitations, investigating loading techniques to transfer therapeutic agents into exosomes without altering their unique composition and bioactive functions. In collaboration with experts in wound healing, exosome-mediated drug delivery will be tested in skin wound models. Other potential development of this research may include the non-invasive monitoring of endogenous and exogenously applied exosomes in skin lesions.