Deciphering the RNA Landscapes on Mammalian Cell Surfaces.

IF 12.8 1区 生物学 Q1 CELL BIOLOGY
Xiao Jiang,Chu Xu,Enzhuo Yang,Danhua Xu,Yong Peng,Xue Han,Jingwen Si,Qixin Shao,Zhuo Liu,Qiuxiao Chen,Weizhi He,Shuang He,Yanhui Xu,Chuan He,Xinxin Huang,Lulu Hu
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引用次数: 0

Abstract

Cell surface RNAs, notably glycoRNAs, have been reported, yet the precise compositions of surface RNAs across different primary cell types remain unclear. Here, we introduce a comprehensive suite of methodologies for profiling, imaging, and quantifying specific surface RNAs. We present AMOUR, a method leveraging T7-based linear amplification, to accurately profile surface RNAs while preserving plasma membrane integrity. By integrating fluorescently labeled DNA probes with live primary cells, and employing imaging along with flow cytometry analysis, we can effectively image and quantify representative surface RNAs. Utilizing these techniques, we have identified diverse non-coding RNAs present on mammalian cell surfaces, expanding beyond the known glycoRNAs. We confirm the membrane anchorage and quantify the abundance of several representative surface RNA molecules in cultured HeLa cells and human umbilical cord blood mononuclear cells (hUCB-MNCs). Our imaging and flow cytometry analyses unequivocally confirm the membrane localization of Y family RNAs, spliceosomal snRNA U5, mitochondrial rRNA MTRNR2, mitochondrial tRNA MT-TA, VTRNA1-1, and the long non-coding RNA XIST. Our study not only introduces effective approaches for investigating surface RNAs but also provides a detailed portrayal of the surface RNA landscapes of hUCB-MNCs and murine blood cells, paving the way for future research in the field of surface RNAs.
解读哺乳动物细胞表面的RNA景观。
细胞表面rna,特别是糖rna,已经被报道,但表面rna在不同原代细胞类型中的精确组成尚不清楚。在这里,我们介绍了一套全面的分析、成像和定量特异性表面rna的方法。我们提出了AMOUR,一种利用基于t7的线性扩增的方法,在保持质膜完整性的同时准确地描绘表面rna。通过将荧光标记的DNA探针与活的原代细胞结合,并采用成像和流式细胞术分析,我们可以有效地对具有代表性的表面rna进行成像和量化。利用这些技术,我们已经确定了存在于哺乳动物细胞表面的多种非编码rna,超出了已知的糖rna。我们在培养的HeLa细胞和人脐带血单核细胞(hUCB-MNCs)中确认了膜锚定并量化了几种具有代表性的表面RNA分子的丰度。我们的成像和流式细胞术分析明确证实了Y家族RNA、剪接体snRNA U5、线粒体rRNA MTRNR2、线粒体tRNA MT-TA、vtrna -1和长链非编码RNA XIST的膜定位。我们的研究不仅介绍了研究表面RNA的有效方法,而且提供了hub - mncs和小鼠血细胞表面RNA景观的详细描述,为未来表面RNA领域的研究铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Protein & Cell
Protein & Cell CELL BIOLOGY-
CiteScore
24.00
自引率
0.90%
发文量
1029
审稿时长
6-12 weeks
期刊介绍: Protein & Cell is a monthly, peer-reviewed, open-access journal focusing on multidisciplinary aspects of biology and biomedicine, with a primary emphasis on protein and cell research. It publishes original research articles, reviews, and commentaries across various fields including biochemistry, biophysics, cell biology, genetics, immunology, microbiology, molecular biology, neuroscience, oncology, protein science, structural biology, and translational medicine. The journal also features content on research policies, funding trends in China, and serves as a platform for academic exchange among life science researchers.
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