| AT-MSC | Adipose Tissue-Derived Mesenchymal Stem Cell |
| AIS | Adaptive Immune System |
| AKI | Acute Kidney Injury |
| ALI | Acute Lung Injury |
| ANS | Autonomic Nervous System |
| APC | Antigen Presenting Cell |
| ARDS | Acute Respiratory Distress Syndrome |
| BM | Bone Marrow |
| BM-MSC | Bone Marrow-Derived Mesenchymal Stem Cell |
| ChAT | Choline Acetyl Transferase |
| ChAT+ cells | Acetylcholine expressing T cells |
| CFU-Fs | Colony Forming Unit-Fibroblasts |
| CTLR | C-Type Lectin Receptor |
| DAMP | Damage Associated Molecular Pattern |
| DIC | Disseminated Intravascular Coagulation |
| EPC | Endothelial Progenitor Cell |
| EVs | Extracellular Vesicles |
| gMSC | glial Mesenchymal Stem Cell |
| HepSC | Hepatic Stellate Cell |
| HSC | Hematopoietic Stem Cell |
| ICU | Intensive Care Unit |
| IDO | InDoleamine 2,3-Dioxygenase |
| IIS | Innate Immune System |
| iNOS | inducible NO Synthase |
| IR | Immune Response |
| IIR | Innate Immune Response |
| LyB | B Lymphocyte |
| LTCD4+ | Lymphocyte CD4+ T Cell |
| LTCD8+ | Lymphocyte CD8+ T Cell |
| LyT | Lymphocyte T |
| MB-MSC | Menstrual Blood-Derived Mesenchymal Stem Cell |
| MC | Mesodermal Cell |
| mRNA | messenger ARN |
| miRNA | microRNA |
| MODS | Multiple Organ Dysfunction Syndrome |
| MSC | Mesenchymal Stem Cell |
| NC-MSC | Neural Crest-Derived Mesenchymal Stem Cell |
| NC-Pg | Neural Crest-Derived Progenitors |
| NK | Natural Killer Cell |
| NKT | Natural Killer “type T” cell |
| NLR | NOD-Like Receptor |
| NPV | Negative Predictive Value |
| NF-kB | Nuclear Factor kappa B |
| NO | Nitric Oxide |
| PAMP | Pathogen-Associated Molecular Pattern |
| pMSC | perivascular Mesenchymal Stem Cell |
| PRR | Pathogen Recognition Receptor |
| RLR | RIG-1-Like Receptor |
| ROS | Reactive Oxygen Species |
| SLO | Secondary Lymphoid Organs |
| SOFA | Sepsis-related Organ Failure Assessment |
| TH1 | T Helper 1 |
| TH2 | T Helper 2 |
| TLR | Toll Like Receptor |
| Treg cells | regulatory T Cells |
| UC-MSC | Umbilical Cord-Derived Mesenchymal Stem Cell |