Downregulation of Exosomal hsa-miR-551b-3p in Obesity and Its Link to Type 2 Diabetes Mellitus

IF 3.6 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Non-Coding RNA Pub Date : 2023-11-02 DOI:10.3390/ncrna9060067

Kseniia V. Dracheva, Irina A. Pobozheva, Kristina A. Anisimova, Stanislav G. Balandov, Maria N. Grunina, Zarina M. Hamid, Dmitriy I. Vasilevsky, Sofya N. Pchelina, Valentina V. Miroshnikova

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Abstract

Obesity is a significant risk factor for the development of type 2 diabetes mellitus (T2DM). Adipose tissue dysfunction can affect the pool of circulating exosomal miRNAs, driving concomitant disease in obesity. These exosomal miRNAs can reflect adipose tissue functionality, thus serving as prognostic biomarkers for disease monitoring in case of T2DM. In the present study, we conducted NanoString microRNA profiling of extracellular vesicles (EVs) secreted by adipose tissue of obese patients (body mass index (BMI) > 35) without T2DM and nonobese individuals (BMI < 30) as a control group. Functional and pathway enrichment analysis showed that miRNAs associated with obesity in this study were implicated in insulin signaling and insulin resistance biological pathways. Further, these microRNAs were screened in serum EVs in the following groups: (1) obese patients with T2DM, (2) obese patients without T2DM, and (3) nonobese individuals as a control group. has-miR-551b-3p was shown to be downregulated in adipose tissue EVs, as well as in serum EVs, of patients with obesity without T2DM. At the same time, the serum exosomal hsa-miR-551b-3p content was significantly higher in obese patients with T2DM when compared with obese patients without T2DM and may be a potential biomarker of T2DM development in obesity.

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肥胖症外泌体hsa-miR-551b-3p的下调及其与2型糖尿病的关系

肥胖是2型糖尿病(T2DM)发展的重要危险因素。脂肪组织功能障碍可影响循环外泌体mirna库，驱动肥胖伴随疾病。这些外泌体mirna可以反映脂肪组织的功能，因此可以作为T2DM疾病监测的预后生物标志物。在本研究中，我们对肥胖患者的脂肪组织分泌的细胞外囊泡(EVs)进行了纳米链microRNA分析。35)无2型糖尿病和非肥胖者(BMI <30)作为对照组。功能和通路富集分析显示，本研究中与肥胖相关的mirna与胰岛素信号传导和胰岛素抵抗生物学通路有关。进一步，在以下组的血清EVs中筛选这些microrna:(1)伴有T2DM的肥胖患者，(2)无T2DM的肥胖患者，(3)作为对照组的非肥胖个体。研究显示，has-miR-551b-3p在肥胖无T2DM患者的脂肪组织EVs以及血清EVs中下调。同时，肥胖合并T2DM患者血清外泌体hsa-miR-551b-3p含量明显高于非T2DM的肥胖患者，可能是肥胖症中T2DM发展的潜在生物标志物。

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

Non-Coding RNA Biochemistry, Genetics and Molecular Biology-Genetics

CiteScore

6.70

自引率

4.70%

发文量

审稿时长

10 weeks

期刊介绍： Functional studies dealing with identification, structure-function relationships or biological activity of: small regulatory RNAs (miRNAs, siRNAs and piRNAs) associated with the RNA interference pathway small nuclear RNAs, small nucleolar and tRNAs derived small RNAs other types of small RNAs, such as those associated with splice junctions and transcription start sites long non-coding RNAs, including antisense RNAs, long ''intergenic'' RNAs, intronic RNAs and ''enhancer'' RNAs other classes of RNAs such as vault RNAs, scaRNAs, circular RNAs, 7SL RNAs, telomeric and centromeric RNAs regulatory functions of mRNAs and UTR-derived RNAs catalytic and allosteric (riboswitch) RNAs viral, transposon and repeat-derived RNAs bacterial regulatory RNAs, including CRISPR RNAS Analysis of RNA processing, RNA binding proteins, RNA signaling and RNA interaction pathways: DICER AGO, PIWI and PIWI-like proteins other classes of RNA binding and RNA transport proteins RNA interactions with chromatin-modifying complexes RNA interactions with DNA and other RNAs the role of RNA in the formation and function of specialized subnuclear organelles and other aspects of cell biology intercellular and intergenerational RNA signaling RNA processing structure-function relationships in RNA complexes RNA analyses, informatics, tools and technologies: transcriptomic analyses and technologies development of tools and technologies for RNA biology and therapeutics Translational studies involving long and short non-coding RNAs: identification of biomarkers development of new therapies involving microRNAs and other ncRNAs clinical studies involving microRNAs and other ncRNAs.

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