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肿瘤中染色体外 DNA 复制与维持和 DNA 损伤通路的关联:为癌症诊疗 ...
为探究染色体外 DNA(ecDNA)在癌细胞中的功能及参与其复制和维持的分子机制,研究人员利用 CRISPR-C 技术构建 ecDNA 携带(ecDNA+)细胞模型展开研究。结果发现 ecDNA 复制激活 ATM 介导的 DNA 损伤反应(DDR)通路,且 DDR 对 ecDNA 维持至关重要。该研究为 ecDNA+肿瘤 ...
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