| FBS | Fetal Bovine Serum |
| GM-CSF | Granulocyte-Macrophage Colony-Stimulating Factor |
| GM-MΦ | GM-CSF monocyte-derived macrophage |
| HHT | Hereditary Hemorrhagic Telangiectasia |
| HUVECs | Human Umbilical Vein Endothelial Cells |
| MΦ | Macrophages |
| M-CSF | Macrophage Colony Stimulating Factor 1 |
| M-MΦ | M-CSF monocyte-derived macrophage |
| MMP | Matrix Metalloproteinase |
| PBMCs | Peripheral Blood Mononuclear Cells |
| sEng | soluble Endoglin |
| SDS | Sodium dodecyl sulfate |
| qRT-PCR | quantitative Real-Time PCR |