In line, the participation of CNS fibroblasts, but not PCs or vSMCs, in fibrotic scar formation was demonstrated in an experimental autoimmune encephalomyelitis model using three different inducible reporter mouse lines (NG2, aSMA, and Col1a2) (Dorrier et al., 2021). Here, COL1A2 is linked to experimental autoimmune encephalomyelitis.