调整单细胞多原子数据的跨模式整合和监管异质性表征,使用深度对比学习
Yue Cheng1,2, Yanchi Su1, Yi Fan1
1School of Artificial Intelligence, Jilin University, Changchun, Jilin, 130012, China.
Genome medicine
|January 26, 2026
概括
我们开发了scMDCF,这是一个用于单细胞多omics集成的深度学习模型. 它有效地协调了各种数据类型,揭示了对细胞功能和疾病机制的新见解,包括阿尔茨海默病.
科学领域:
- 计算生物学 计算生物学
- 基因组学就是基因组学.
- 系统生物学 系统生物学
背景情况:
- 单单细胞多omics (scMulti-omics) 技术可以同时测量多种不同的细胞模式.
- 整合异构的scMulti-omics数据是具有挑战性的,因为规模,分辨率和生物变异性的差异.
- 传统方法往往无法调和这些差异,失去了关键的生物变异性和分子间相互作用.
研究的目的:
- 开发一种新的深度学习模型,以高效地描述和整合scMulti-omics数据.
- 解决数据异质性的挑战,并调和跨欧米克层的差异.
- 保持生物变异性,揭示微妙的分子间相互作用.
主要方法:
- 开发了一个使用对比学习的单细胞多omics深度学习模型 (scMDCF).
- 实施了一种跨模式的对比学习模块,以协调跨omics类型的数据表示.
- 使用交叉模式的特征融合模块提取常见的低维潜伏表示.
主要成果:
- 在各种数据类型中,scMDCF的性能优于现有的最先进的scMulti-omics模型.
- 从SNARE-seq数据中成功地提取了特定于细胞类型的峰值基因关联和cis-regulatory元素.
- 从CITE-seq数据和SARS-CoV-2疫苗接种后确定的疫苗诱导的B细胞亚群的阐明免疫调节.
- 在阿尔茨海默病数据中确定了少数微质细胞和内皮细胞种群,揭示了ELF1作为潜在的生物标志物.
结论:
- scMDCF是一个用于 scMulti-omics 集成的对比学习框架,在保持异质性的同时协调表示.
- 在多种scMulti-omics数据集中展示了改进的集群,批量效应缓解和机械洞察力.
- 为 scMulti-omics 数据分析提供公开可用的代码和可重复的工作流.
相关概念视频
02:02Cis-regulatory Sequences
11.7K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
11.7K
02:02Cis-regulatory Sequences
4.1K
4.1K
01:34Crossing Over
171.7K
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
171.7K
01:50Cross-Sectional Research
12.5K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.5K
01:20Monohybrid Crosses
239.3K
Overview
239.3K
01:15Sensory Modalities
3.9K
Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
3.9K