| ACTB | beta actin |
| CTSK | cathepsin K |
| HC | healthy control |
| M-CSF | macrophage-colony stimulating factor |
| MFI | mean fluorescence intensity |
| MNC | multinucleated cell |
| NF-κB | nuclear factor kappa-B |
| NFATc1 | nuclear factor of activated T cells, cytoplasmic 1 |
| PCR | polymerase chain reaction |
| PBM | peripheral blood monocyte |
| PBMC | peripheral blood mononuclear cell |
| RA | rheumatoid arthritis |
| RANKL | receptor activator of nuclear factor kappa-B ligand |
| TGFβ1 | transforming growth factor beta1 |
| TGFBRII | TGFβ1 receptor II |
| TRAP | tartrate-resistant acid phosphatase |