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线粒体DNA可以致癌吗? 被引量:4

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摘要 线粒体DNA(mtDNA)在物理、化学及某些生物学因素的作用下,常会发生突变、缺失和重组,而线粒体膜也可发生破碎、裂解,从而导致胞质中游离的mtDNA及mtDNA片段的形成。此时,当胞质中DNA酶及DNA酶样物质的质和量受到影响时,游离的mtDNA或mtDNA片段即可获得与致瘤病毒一样的机会,随机整合到核基因组中。获得性的mtDNA核内整合可能与肿瘤及衰老有关,而种系性的mtDNA核内整合可能与某些肿瘤易感人群及某些遗传疾病有关。
出处 《国外医学(遗传学分册)》 1994年第6期298-301,共4页 Foreign Medical Sciences(Section of Genetics )
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