aGVHD	acute GVHD
AKI	Acute Kidney Injury
ALI	acute lung injury
APCs	antigen presenting cells
ARDS	acute respiratory distress syndrome
AT	Adipose Tissue
AT-MSCs	Adipose tissue-MSCs
BAFF	B-Cell Activating Factor
BM	Bone marrow
BM-MSCs	Bone marrow-MSCs
BPD	bronchopulmonary dysplasia
cGVHD	chronic GVHD
COPD	chronic obstructive pulmonary disease
CKD	Chronic Kidney Disease
DCD	donation after circulatory death
EVs	Extracellular Vesicles
Exos	exosomes
GVHD	Graft versus host disease
HSCT	Hematopoietic stem cell transplantation
IDO	Indoleamine 2,3-Dioxygenase
IR	ischemia-reperfusion
miRNAs	micro-RNAs
m/lEVs	medium/large sized enriched in microvesicles
MSC-EVs	MSC-derived extracellular vesicles
MSCs	Mesenchymal Stem/Stromal cell
MVs	microvesicles
PBMCs	peripheral blood mononuclear cells
SCID	Severe Combined Immunodeficiency
sEVs	small EVs
Treg	regulatory T cells
UC-MSC-EVs	umbilical cord-MSCs derived EVs
UC-MSCs	umbilical cord-MSCs
VILI	ventilator-induced lung injury