单细胞多式联通数据与MIDAS的马赛克集成和知识传输
Zhen He1, Shuofeng Hu1, Yaowen Chen1
1Center for Computational Biology, Beijing Institute of Basic Medical Sciences, Beijing, China.
Nature biotechnology
|January 24, 2024
概括
单细胞多模式数据的马赛克集成是具有挑战性的. 我们介绍了MIDAS,这是一个深度的概率框架,用于有效的数据集成,归算和批次校正,从而实现了强大的知识传输.
科学领域:
- 计算生物学 计算生物学
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 整合来自多个omics技术的单细胞数据对于理解细胞异质性至关重要.
- 马赛克集成,数据集共享有限的模式,在模式对齐和批量效应去除方面提出了重大挑战.
研究的目的:
- 介绍一个新的深度概率框架,MIDAS (马赛克集成和知识转移),用于集成单细胞多式联络数据.
- 解决马赛克集成方面的挑战,包括维度减小,归算和批次校正.
主要方法:
- 开发了一个深度的概率框架,利用自我监督的模式对齐和信息理论潜伏解.
- 实现了MIDAS,用于对马赛克单细胞数据的同时减小维度,归算和批次校正.
- 构建了人类外周血液单核细胞的单细胞三模体地图,用于知识传输.
主要成果:
- 与其他19种方法相比,MIDAS在三模和马赛克集成任务中表现出优越的性能.
- 通过应用在马赛克集成,伪时间分析和跨组织知识传输中验证了MIDAS的可靠性和多功能性.
- 通过定制的转移学习和相互引用映射方案,成功实现了灵活而准确的知识转移.
结论:
- 米达斯为单细胞多式联络数据的马赛克集成提供了强大而通用的解决方案.
- 该框架有助于从地图集到新数据集的准确知识转移,推进单细胞数据分析.
- 在处理复杂的多式联运单细胞数据集及其集成方面,MIDAS 提供了显著的改进.
更多相关视频
06:15Author Spotlight: Introducing the Tile/SED/Array Interface for Rapid Field of View Positioning in Tissue Imaging
Published on: September 15, 2023
463
08:48Fluorescence-Guided Matrix-assisted Laser Desorption/Ionization with Laser-Induced Postionization Mass Spectrometry of Individual Rat Neural Cells
Published on: May 23, 2025
201
相关概念视频
01:19MALDI-TOF Mass Spectrometry
Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
01:08Matrix-Assisted Laser Desorption Ionization (MALDI)
Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI is an ionization technique, widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix...
01:25Rapid Identification of Pathogens
MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...