Regarding CCL2 (which is also produced by MCs), it has been shown that it attracts fibrocytes to distinct injuries and, interestingly, the interplay among TGF-β, IL-13, and CCL2 has been observed in the context of pulmonary fibrosis, suggesting that may play a role also in tumor fibrosis [243]. The gene discussed is CCL2; the disease is pulmonary fibrosis.