Human dermal LECs and adipose derived mesenchymal stem cells (ASCs) were obtained from PromoCell (Heidelberg, Germany) and stained in chamber slides for Prox1, Ki67 (Abcam, Cambridge, MA), p-AKT (Cell Signaling Technology, Danvers, MA), and VEGFR-3 (EMD Millipore, Billerica, MA). Cell signal intensity was quantified using MetaMorph (Molecular Devices, Sunnyvale, CA). Western blot analysis for VEGFR-3 (Abcam), p-AKT, and p-eNOS (Cell-signaling Technology) was performed with total cellular protein harvested from LECs and quantified with NIH Image J.(19 (link))