从致病源到法医的体质突变:机遇,挑战和未来的方向
Hamed Charkhian1, Hassan Eskandari2, Vida Pourteimoor3
1Institute of Graduate Studies in Health Sciences, Istanbul University, Istanbul, Turkey; Department of Cancer Genetics, Oncology Institute, Istanbul University, Istanbul, Turkey.
身体突变,或受孕后的遗传变化,可以增强法医调查. 本综述探讨了它们作为短串重复 (STR) 分析的补充标记物的潜力,特别是对于具有挑战性的DNA样本.
科学领域:
- 法医遗传学 法医遗传学
- 实体突变分析分析
- 下一代测序 (NGS) 是指下一代的测序.
背景情况:
- 身体突变,后异位遗传变化,创造了个体内部的马赛克主义.
- 传统上研究在瘤学和发育生物学,他们的法医应用是低探索.
- 传统的法医分析依赖于短串重复 (STR) 标记.
研究的目的:
- 批判性地合成生物证据和测序技术,用于体质突变的法医应用.
- 为了评估体质变异的可操作价值,超出了传统的STR分析.
- 定义特定的法医场景,其中体变异可以作为补充标记.
主要方法:
- 对体突变和国际法医科学研究进行比较分析.
- 检查体质突变和生殖系标记物 (等位基因分数,组织特异性,遗传) 之间的差异.
- 批判性评价新兴的超深度和错误纠正的测序策略.
主要成果:
- 身体突变从根本上与生殖系标记物有所不同,影响证据解释和统计评估.
- 目前的测序技术显示出希望,但面临着诸如文物,异质性和常规使用的模糊性等局限性.
- 身体变异在特定的法医环境中提供了作为高分辨率,互补标记物的潜力.
结论:
- 身体突变分析不是STR分析的替代品,而是有价值的辅助.
- 特定的法医场景,包括退化的DNA,放射治疗损伤,组织起源推断和复杂的混合物,可以受益.
- 对于负责任的翻译,需要一个整合生物机制,分析约束和验证标准的实际框架.
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