| Sema4A | Semaphorin4A |
| Th | T helper |
| IFN-γ | Interferon-γ |
| IL | Interleukin |
| ILT4 | Immunoglobulin-like transcript 4 |
| SSc | Systemic sclerosis |
| NRP-1 | Neuropilin-1 |
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