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Updated: Sep 15, 2025

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Optimization for Sequencing and Analysis of Degraded FFPE-RNA Samples
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从犬类档案组织的转录组分析中,3'RNA-Seq和RNA杂交平台之间的基因数量和差异表达基因的强烈相关性
Alexander F H Haake1, Alina K Loriani Fard1, Vladimir M Jovanovic2,3
1Department of Veterinary Medicine, Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany.
Frontiers in veterinary science
|July 15, 2025
概括
通过比较3'RNA-Sequencing (RNA-Seq) 和直接RNA杂交来分析档案组织,发现这两种方法都适用于甲固定,嵌 (FFPE) 样本,为犬类瘤基因表达提供了宝贵的见解.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 档案组织,特别是甲固定,嵌 (FFPE) 样本,是研究兽医中基因表达的丰富资源.
- 现代高通量转录组分析方法,如3'RNA测序 (RNA-Seq) 和直接RNA杂交,适用于从FFPE组织中降解的RNA.
- 关于这些概念上不同的方法生成的数据的可比性和可重现性,问题出现了.
研究的目的:
- 为了比较3'RNA-Seq和直接RNA杂交,用于分析来自FFPE犬类瘤的RNA.
- 评估两种方法之间的数据可比性和可重复性.
- 引导从档案组织研究中选择和解释数据.
主要方法:
- 使用3'RNA-Seq和直接RNA杂交的35种FFPE犬类瘤的RNA分析.
- 样本和基因智能计数水平,基因表达强度和方向的比较.
- 使用雅卡德指数对差异表达基因 (DEGs) 重叠的评估.
主要成果:
- 这两种方法都显示出适用于FFPE档案组织的适用性,具有中度至强度的整体计数相关性 (皮尔森和斯皮尔曼平均值:0.660.87).
- 基因智能计数相关性受基因表达强度的影响.
- 表达方向显示出非常强的相关性 (0.880.91),但差异表达基因 (DEGs) 重叠是中等的 (贾卡德指数:0.53).
结论:
- 3'RNA-Seq和直接RNA杂交均可用于在兽医研究中分析FFPE档案组织.
- 选择方法时应考虑研究目标,因为每个技术都有不同的优势.
- 了解特定方法的性能对于验证和解释档案样本中的基因表达数据至关重要.
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