Because, the expression and/or the percentage of positive CD163 and CD169 cells were increased in SSc-ILD and considering that CD206 expression seemed lower in AM from Neo group in comparison with those from Sarco or SSc groups (Figure 2), we analyzed their co-expression with CD206, a marker well expressed both by GM-MDMs and M-MDMs. The gene discussed is SIGLEC1; the disease is systemic sclerosis.