TSI scores for 60 cell lines compared with nine tumor types. Each graph (a–j) independently presents the TSI scores for the 60 cell lines to a particular tumor type. Within each graph, the TSI scores to the left (•) are those of the cell lines presumed to originate from that tumor tissue, and displayed to the right (×) are the TSI scores for all other cell lines originating from other tumor tissues. Most tumors have cell lines that received high TSI scores, with the exception of the renal and prostate cell lines. The gray area indicates the region of medium TSI scores, and scores above the gray area are consequently high. The best cell lines for the different tumors were labeled. Seven cell lines received high TSI for another tumor than their presumed origin. These were also labeled in the right parts of each graph. The tumor types are as follows: a, melanoma; b, leukemia; c, breast ER-negative; d, breast ER-positive; e, CNS; f, colon; g, ovary; h, lung; i, renal; and j, prostate.