如果黑色素细胞的 DNA 发生变化,就会开始形成黑色素瘤。细胞的 DNA 含有指示细胞工作的指令。健康细胞中的 DNA 发出以设定速率生长和增殖的指令。该指令会指示细胞在设定的时间死亡。而在癌细胞中,DNA 的变化给出了不同的指令。这些变化会指示癌细胞快速产生更多细胞。癌细胞可在健康细胞正常死亡时继续存活。这会导致细胞过多。
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