| ACPA | anti-citrullinated protein antibodies |
| Ago | argonaute |
| AKT | RAC-alpha serine/threonine-protein kinase or protein kinase B |
| Bax/Bcl-2 | Bcl-associated protein X gene/B cell lymphoma-2 regulatory protein |
| BM-MSC | bone marrow-derived mesenchymal stem cell |
| BMP | bone morphogenetic protein |
| CD | cluster of differentiation |
| C/EBP-β | CCAAT/enhancer-binding protein beta |
| CIA | collagen-induced arthritis |
| ceRNA | competing endogenous RNA |
| circRNA | circular RNA |
| CRP | C-reactive protein |
| CSF | colony stimulating factor |
| CTGF | connective tissue growth factor |
| CV | cardiovascular |
| CXC | cysteine- X-amino acid-cysteine chemokine |
| DAS28 | disease activity score 28 of rheumatoid arthritis |
| DC | dendritic cell |
| DKK | Dickkopf Wnt signaling pathway inhibitor |
| DRs | derived RNAs |
| EBNA | Epstein–Barr virus nuclear antigen |
| ESR | erythrocyte sedimentation rate |
| Exo | exosome |
| FcγR | IgG-Fc receptor |
| FLS | fibroblast-like synoviocyte |
| FOX | forkhead box protein |
| FSTL1 | follistatin-like protein 1 |
| Grp78 | glucose-regulating protein 78 |
| HAND2-AS-1 | Heart- and neural crest derivatives-expressed protein 2- antisense RNA 1 |
| HDAC | histone deacetylase |
| HLA | human leukocyte antigen |
| HOTAIR | HOX (homeobox gene) transcript antisense RNA |
| IC | immune complex |
| IFN | interferon |
| IL | interleukin |
| IRAF-6 | TNF receptor-associated factor 6 |
| IRAK-1 | IL-1 receptor-associated kinase 1 |
| IRF | interferon regulatory factor |
| ITGAV | Integrin alpha chain V gene |
| lncRNA | long non-coding RNA |
| LPS | lipopolysaccharide |
| MAPK-ERK | mitogen-activated protein kinase/extracellular signal-regulated kinases |
| miR | microRNA |
| MMP | matrix metalloproteinase |
| MSC | mesenchymal stem cell |
| mTOR | mammalian target of rapamycin |
| MyD88 | myeloid differentiation factor 88 |
| ncRNA | non-coding RNA |
| NEAT | Nuclear enriched abundant transcript |
| NET | neutrophil extracellular trap |
| NF-κB | nuclear factor kappa-light-chain-enhancer of activated B cells |
| NK | natural killer |
| OB | osteoblast |
| OC | osteoclast |
| OPG | osteoprotegerin |
| PAD | peptidylarginine deiminase |
| PBMC | peripheral blood mononuclear cell |
| PVT1 | plasmacytoma variant translocation 1 |
| MNC | mononuclear cell |
| PDK4 | pyruvate dehydrogenase kinase 4 |
| PGRN | progranulin |
| PMN | polymorphonuclear neutrophil |
| PTEN | phosphatase and tensin homolog |
| RA | rheumatoid arthritis |
| RA-FLS | rheumatoid arthritis-fibroblast-like synoviocyte |
| RANK | receptor activator of NF-κB |
| RANKL | receptor activator of NK-κB ligand |
| RF | rheumatoid factor |
| RISC | RNA induced silencing complex |
| ROBO | roundabout guidance receptor |
| SATB2 | special AT-rich sequence binding protein 2 |
| SF | synovial fluid |
| Smad | small mothers against decapentaplegia protein |
| snoRNA | small nucleolar RNA |
| Sp7 | specific protein 7 |
| sRNA | endogenous small RNA |
| STAT | signal transducer and activator of transcription |
| T-bet | T box expressed in T cells |
| TBS | trabecular bone score |
| tDR | transfer-derived RNA |
| TGF-β | transforming growth factor beta |
| Th17 | helper T cell-17 |
| TLR | Toll-like receptor |
| TNF | tumor necrosis factor |
| Treg | regulatory T cell |
| TRIF | Toll/IL-1 receptor (TIR) domain-containing adaptor inducing interferon- β factor |
| VEGF | vascular endothelium-derived growth factor |
| Wnt | wingless and Int-1 protein in Drosophila |
| yDR | Y RNA, |
| YY1 | yingyang 1 |