BM	bone marrow
C7	type 7 collagen
COST	Cooperation in Science and Technology
DCs	dendritic cells
EB	epidermolysis bullosa
EM	electron microscopy
EVs	extracellular vesicles
GMP	good manufacturing practice
hUC	human umbilical cord
ICH	International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use
ISCT	International Society for Cellular Therapy
ISEV	International Society for Extracellular Vesicles
Me-HAD	European Network on Microvesicles and Exosomes in Health and Disease
miRNA	microRNA
MoA	mode of action
MSCs	mesenchymal stromal cells
NTA	nanoparticle tracking analysis
RDEB	recessive dystrophic epidermolysis bullosa
PoC	proof of concept
SCI	spinal cord injury
SEC	size exclusion chromatography
TFF	tangential flow filtration
VSFs	vesicular secretome fractions