Sebastian Kistenmacher, Melanie Schwämmle, Gottfried Martin, Eva Ulrich, Stefan Tholen, Oliver Schilling, Andreas Gießl, Ursula Schlötzer-Schrehardt, Felicitas Bucher, Günther Schlunck, Irina Nazarenko, Thomas Reinhard, Naresh Polisetti
Limbal epithelial progenitor cells (LEPC) rely on their niche environment for proper functionality and self-renewal. While extracellular vesicles (EV), specifically small EVs (sEV), have been proposed to support LEPC homeostasis, data on sEV derived from limbal niche cells like limbal mesenchymal stromal cells (LMSC) remain limited, and there are no studies on sEVs from limbal melanocytes (LM). In this study, we isolated sEV from conditioned media of LMSC and LM using a combination of tangential flow filtration and size exclusion chromatography and characterized them by nanoparticle tracking analysis, transmission electron microscopy, Western blot, multiplex bead arrays, and quantitative mass spectrometry...
April 4, 2024: Cells