As reported in Fig. 4D-G and Supplementary Fig. 3E, while Bcl-xL overexpressing melanoma cells silenced for CCL5 do not show less ability to invade the tail, inhibition of CCL5 significantly reduced the capacity of macrophages to be recruited at the tumor site, resulting in reduced interactions between invading melanoma cells and macrophages. The gene discussed is CCL5; the disease is melanoma.