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Updated: May 2, 2026

Analysis of Single-cell Gene Transcription by RNA Fluorescent In Situ Hybridization FISH

Analysis of Single-cell Gene Transcription by RNA Fluorescent In Situ Hybridization FISH

Published on: October 7, 2012

scRNA-seq揭示了Plasmodium falciparum中各种基因表达的转录可塑性,用于宿主免疫回避

Francesca Florini¹, Joseph E Visone¹, Evi Hadjimichael¹

¹Department of Microbiology and Immunology, Weill Cornell Medical College, New York, NY, USA.

Nature microbiology

|May 16, 2025

概括

杆菌寄生虫可以表达多个毒性基因或完全没有,逃避免疫检测. 这种转录灵活性有助于疟疾寄生虫在慢性感染期间持续存在.

科学领域:

疟疾学疟疾学
免疫学免疫学免疫学
遗传学是一个遗传学.

背景情况:

杆菌 (Plasmodium falciparum) 通过切换 var 基因的表达来逃避免疫反应,在感染的红细胞上编码表面抗原.
以前的研究表明,多种基因表达不均,但慢性感染的机制和影响仍然不清楚.

研究的目的:

为了研究个别的Plasmodium falciparum寄生虫中的各种基因表达模式.
了解基因表达的变异性如何导致免疫逃避和慢性疟疾.

主要方法:

使用丰富探针和便携式微波系统,采用单细胞转录组学.
在克隆3D7和IT4寄生虫系中分析了Var基因表达.

主要成果:

寄生虫表现出单基因多基因表达,同时多基因表达或无法检测到的多基因表达状态.
减少变异基因表达显著降低了感染红细胞的抗体识别.

结论:

多种基因表达的转录灵活性增强了Plasmodium falciparum的适应能力.
这种灵活性可以解释在慢性无症状疟疾感染期间存在抗原性"隐形"寄生虫的存在.

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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...