基因型和相关的癌症风险在与端粒生物学疾病的个体
Marena R Niewisch1,2, Jung Kim1, Neelam Giri1
1Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
JAMA network open
|December 11, 2024
概括
患有端粒生物学障碍 (TBD) 的人面临的癌症风险比一般人群高3倍. 自体递归/X链接遗传具有最高的风险和最早的发病,特别是在头癌等固体瘤中.
科学领域:
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
- 血液学 血液学 血液学
背景情况:
- 端粒生物学疾病 (TBD) 是一种与癌症风险增加相关的遗传性骨髓衰竭综合征.
- 结核病的发病率和死亡率根据遗传方式有很大差异.
研究的目的:
- 量化和比较不同TBD遗传亚组的癌症风险.
- 研究遗传模式对癌症发病和癌症类型的影响.
主要方法:
- 一项纵向队列研究,涉及230名TBD患者,从2002年至2022年进行评估.
- 根据TBD基因型分析了癌症发生率和结果,并根据遗传模式分类 (自体主导[AD-non-TINF2],自体递归/X链接[AR/XLR]和AD-TINF2).
- 观察:使用SEER数据计算了预期的 (O:E) 癌症比率,并考虑了死亡或器官移植的竞争风险.
主要成果:
- 与普通人群相比,患有结核病的人患癌症的风险高出3倍 (O:E,3.35).
- 与AD非TINF2 (平均年龄为44.5岁) 相比,AR/XLR亚组呈现出最高的癌症风险 (O:E,19.16) 和显著较早的癌症发病 (平均年龄为36.7岁).
- AR/XLR个体患固体瘤的风险最高,特别是头部和部状细胞癌 (O:E, 276.00),而AD非TINF2个体患血液性恶性瘤的风险最高 (O:E, 9.41).
- 在所有子组中,器官移植后癌症风险增加,AR/XLR和AD-TINF2显示最高风险 (分别为O:E,136.11和81.07).
结论:
- 结核病与大幅增加的癌症风险有关,因遗传遗传模式而有所不同.
- 自体逆行/X链接遗传赋予了最早和最高的癌症风险,特别是在特定的固体瘤.
- 研究结果表明,针对TBD的癌症查方案可能适用于特定的基因型,这需要进一步研究.
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