In this context, findings derived by an analysis of a melanoma patient cohort from The Cancer Genome Atlas (TCGA) revealed that sixteen intratumoral bacterial genera, including the Lachnoclostridium genus, were positively associated with CD8+ T cell infiltration, attributed to increased expression of the chemokines CXCL9, CXCL10 and CCL5, thus resulting in better patient overall survival rates [114]. The gene discussed is CCL5; the disease is melanoma.