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Characterization of protein, long noncoding RNA and microRNA signatures in extracellular vesicles derived from resting and degranulated mast cells.
Journal of Extracellular Vesicles ( IF 16.0 ) Pub Date : 2019-12-06 , DOI: 10.1080/20013078.2019.1697583
Yuting Liang 1 , Sheng Huang 1 , Longwei Qiao 2 , Xia Peng 1 , Chong Li 3 , Kun Lin 4 , Guogang Xie 5 , Jia Li 1 , Lihui Lin 1 , Yue Yin 1 , Huanjin Liao 1 , Qian Li 6 , Li Li 1
Affiliation  

Mast cells (MCs) are known to participate in a variety of patho-physiological processes depending largely on the intragranular mediators and the production of cytokines and chemokines during degranulation. Recently, extracellular vesicles (EVs) have been implicated important functions for MCs, but the components of MC-derived EVs have not yet been well-characterized. In this study, we aimed to identify signatures of proteins, long non-coding RNAs (lncRNAs), and microRNAs (miRNAs) in EVs derived from resting (Rest-EV) and degranulated (Sti-EV) MCs by differential ultracentrifugation. Using tandem mass tag (TMT)-based quantitative proteomics technology and RNA sequencing, we identified a total of 1988 proteins, 397 lncRNAs, and 272 miRNAs in Rest-EV and Sti-EV. The proteins include common EVs markers (cytoskeletal proteins), MCs markers (FcεRI and tryptase), and some preformed MCs mediators (lysosomal enzymes) as well. The global expression profiles of lncRNAs and miRNAs identified, for the first time, from Rest-EV and Sti-EV, strongly suggest a potential regulatory function of MC-derived EVs. We have also performed Western blotting and qRT-PCR analysis to further verify some of the proteins, lncRNAs, and miRNAs identified from Rest-EV and Sti-EV. Our findings will help to elucidate the functions of MC-derived EVs, and provide a reference dataset for future translational studies involving MC-derived EVs.

中文翻译:

表征来自静止和脱粒肥大细胞的细胞外囊泡中的蛋白质,长的非编码RNA和microRNA特征。

肥大细胞(MCs)参与各种病理生理过程,主要取决于颗粒内介质以及脱粒过程中细胞因子和趋化因子的产生。近来,细胞外囊泡(evs)已被认为是MC的重要功能,但是MC衍生的EV的成分尚未被很好地表征。在这项研究中,我们旨在通过静置超速离心从静止(Rest-EV)和脱粒(Sti-EV)MC衍生出的EV中鉴定蛋白质,长非编码RNA(lncRNA)和microRNA(miRNA)的特征。使用基于串联质量标签(TMT)的定量蛋白质组学技术和RNA测序,我们在Rest-EV和Sti-EV中鉴定出总共1988种蛋白质,397个lncRNA和272个miRNA。这些蛋白质包括常见的EVs标记(细胞骨架蛋白质),MCs标记(FcεRI和类胰蛋白酶),以及一些预先形成的MCs介体(溶酶体酶)。首次从Rest-EV和Sti-EV确定的lncRNA和miRNA的全球表达谱强烈暗示了MC衍生的电动车的潜在调节功能。我们还进行了蛋白质印迹和qRT-PCR分析,以进一步验证从Rest-EV和Sti-EV中鉴定出的某些蛋白质,lncRNA和miRNA。我们的发现将有助于阐明MC衍生的电动汽车的功能,并为涉及MC衍生的电动汽车的未来翻译研究提供参考数据集。我们还进行了蛋白质印迹和qRT-PCR分析,以进一步验证从Rest-EV和Sti-EV中鉴定出的某些蛋白质,lncRNA和miRNA。我们的发现将有助于阐明MC衍生的电动汽车的功能,并为涉及MC衍生的电动汽车的未来翻译研究提供参考数据集。我们还进行了蛋白质印迹和qRT-PCR分析,以进一步验证从Rest-EV和Sti-EV中鉴定出的某些蛋白质,lncRNA和miRNA。我们的发现将有助于阐明MC衍生的电动汽车的功能,并为涉及MC衍生的电动汽车的未来翻译研究提供参考数据集。
更新日期:2020-04-20
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