EPISODE · Jun 8, 2026 · 19 MIN
1097-英国生物样本库全基因组测序中的嵌合染色体变异研究
from 聊聊Sci
这份研究利用英国生物样本库中近48万名参与者的全基因组测序数据，开发出一种高分辨率计算方法，用以识别血液中的嵌合染色体变异（mCA）。研究人员发现了超过四万个常染色体变异，其检测灵敏度远超传统的芯片分析，尤其在识别微小变异和低比例克隆方面表现出色。该研究揭示了53个变异热点区域，其中许多与脆弱位点及非同源末端连接修复机制相关。此外，研究还确认了与慢性淋巴细胞白血病相关的早期删除事件，并识别出受克隆选择驱动的蛋白质编码变异。这些成果深化了科学界对血液基因组随年龄增长而演变的理解，并为癌症早期筛查提供了潜在的遗传标志物。References:Tang D, Kamitaki N, Mukamel R E, et al. Patterns and drivers of 43,617 mosaic chromosomal alterations in blood[J]. Nature Genetics, 2026: 1-12.前往小宇宙评论区与主播互动
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1097-英国生物样本库全基因组测序中的嵌合染色体变异研究
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