相关实验视频

Updated: Jan 21, 2026

RNA-seq Analysis of Transcriptomes in Thrombin-treated and Control Human Pulmonary Microvascular Endothelial Cells

RNA-seq Analysis of Transcriptomes in Thrombin-treated and Control Human Pulmonary Microvascular Endothelial Cells

Published on: February 13, 2013

scVAR:从白血病病例研究中的单细胞RNA序列洞察中整合基因组学和转录组学

Ludovica Celli¹, Samuele Manessi¹, Matteo Barcella²

¹Institute of Biomedical Technologies, National Research Council (ITB-CNR), Segrate, Italy.

Frontiers in genetics

|January 20, 2026

概括

scVAR集成了来自单细胞RNA测序 (scRNA-seq) 数据的遗传变异,改善了白血病等复杂疾病中细胞亚群的识别. 这种计算框架通过结合转录和基因组见解来增强疾病诊断和治疗.

科学领域:

基因组学就是基因组学.
计算生物学计算生物学
分子生物学分子生物学

背景情况:

高通量技术,包括单细胞RNA测序 (scRNA-seq),正在通过使细胞异质性的详细分析,彻底改变生物医学研究.
像急性髓性白血病 (AML) 和急性淋巴细胞白血病 (ALL) 这样的复杂疾病表现出显著的遗传和表型多样性,使诊断和治疗复杂化.
虽然DNA测序是遗传变异的标准,但转录组也包含有价值的基因组信息.

研究的目的:

引入scVAR,这是一个新的计算框架,旨在直接从scRNA-seq数据中学习和整合遗传变异.
通过使用交叉注意力机制统一转录组和变异衍生的信息来增强微妙的细胞差异的检测.
为了证明scVAR在白血病病例研究中的实用性,以改善细胞身份和亚群发现.

主要方法:

开发scVAR,一个使用变量自编码器的计算框架.
实现一个配对的编码器-解码器架构与基于交叉注意力的融合层.
应用scVAR来分析白血病病例研究中的scRNA-seq数据.

主要成果:

scVAR成功地集成了转录和变异数据,通过单独分析每个数据类型来揭示错过的细胞身份.
该框架与单独的转录基因分析相比,甚至在有限的变异覆盖率下,也确定了20%-30%的亚种群.
在被捕获区域内,对3'scRNA-seq进行了变异检测的优化,最大限度地提取信息.

结论:

scVAR有效地弥合了转录学和基因组学之间的差距,用于单细胞分析.
该框架为细胞状态和疾病过程的综合性表征提供了一个广泛适用的平台.
将变异信息与scRNA-seq数据集成显著提高了复杂疾病中细胞异质性的解决.

关键词:

遗传异质性的遗传异质性这种白血病是白血病.多主题整合多主题整合.一个单细胞RNA测序.变量自动编码器变量自动编码器

更多相关视频

Rup (RNA-seq Usability Assessment Pipeline) - Quality Control for Bulk RNA-seq Experiments in Eukaryotes

Rup (RNA-seq Usability Assessment Pipeline) - Quality Control for Bulk RNA-seq Experiments in Eukaryotes

Published on: November 7, 2025

Transcriptome Analysis of Single Cells

Transcriptome Analysis of Single Cells

Published on: April 25, 2011

相关概念视频

RNA-seq

RNA-seq

RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...

Viruses with RNA Genomes

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...

Genomics

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...

Genome-wide Association Studies-GWAS

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...

Genomic Imprinting and Inheritance

Genomic Imprinting and Inheritance

Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...

RNA Stability

RNA Stability

Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...