CXCR3 and cancer: Although there were not enough data to analyze CXCR3 isoform expression across the BRCA TCGA cohort, from an additional pan-cancer analysis of 32 TCGA cohorts we analyzed, across all cancers, there was no significant correlation between CXCR3 splicing and survival, nor was there any differential CXCR3 splicing detected between tumor and adjacent normal tissue (Supplementary Table S1).