Guo et al., based on the TCGA data identified seven pseudogenes: SRP9P1, RP4-800G7.1, CH17-264B6.3, C1DP1, MTND4P12, LDHAP3, and RP11-359E7.3 in melanoma tissue samples which are upregulated in melanoma. This evidence concerns the gene C1DP1 and melanoma.