Analysis reveals lower C>T mutational signatures in cutaneous melanomas from Chinese patients, indicating differences with the American cohort.
Lower activity of UV-associated mutations in cutaneous melanomas from Chinese patients. A, Bar plot of signature activities for seven melanomas in the OM cohort with at least 10 mutations that were included in the mutational signature analysis. B, The total number of SBS mutations per megabase (Mb), (C) the fraction of C>T mutations, and (D) the fraction of C>T mutations at the TCA, CCC, or TCT trinucleotide contexts were significantly lower in cutaneous melanomas from the Chinese cohort compared with cutaneous melanomas from the American cohort.
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Chevalier et al. (2025) studied this question.
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