Finally, although the level of MCD 1, which expresses high levels of mannose receptor, is more abundant in endometriosis, they can phagocytose dead endometrial stromal cells, but they produce pro-inflammatory cytokines IL-1β and IL-6, which not only promote inflammation but also help the endometriosis lesion to grow and thrive [16,98]. This evidence concerns the gene IL1B and endometriosis.