空间-CUT&Tag:在细胞水平上进行空间分辨的染色体修饰分析
Yanxiang Deng1,2, Marek Bartosovic3, Petra Kukanja3
1Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA.
Science (New York, N.Y.)
|February 10, 2022
概括
随着空间CUT&Tag的发展,可以在组织中绘制全基因组基因组修饰图. 这项技术揭示了小鼠胚胎和大脑的表观遗传调节,为细胞的发展和命运提供了洞察力.
科学领域:
- 基因组学
- 表观遗传学
- 空间生物学
背景情况:
- 空间奥米学是生物和生物医学研究中的一个快速发展的领域.
- 了解表观遗传修饰的空间组织对于破译细胞功能和发育至关重要.
研究的目的:
- 引入空间CUT&Tag,这是一个用于空间解析全基因组基因组修饰的新方法.
- 在小鼠胚胎和大脑中展示空间CUT&Tag的应用,以调查表观遗传调节和细胞模式.
主要方法:
- 在现场CUT&Tag化学与微流体确定性条形码和下一代测序的整合.
- 在组织样本中应用空间CUT&Tag进行全基因组基因组修饰分析.
- 使用免疫光成像识别20微米像素内的单个核,用于单细胞表观基因组导出.
主要成果:
- 在小鼠胚胎中绘制出空间分辨的染色质状态,揭示了特定组织的表观遗传规则.
- 在组织尺度上获得空间信息,与ENCODE引用相关.
- 在小鼠大脑中阐明了皮层发育和空间细胞类型模式的表观遗传控制.
- 从空间分析数据中成功地获得单细胞表观基因组.
结论:
- 空间CUT&Tag为组织中的高分辨率空间表观基因组分析提供了强大的工具.
- 这种方法为研究表观遗传调节,细胞功能和在正常生理和疾病中的命运决定提供了新的机会.
- 这种技术通过在原生组织环境中对染色质状态进行详细分析,从而推进空间奥米克领域.
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