Preparation of a miR-155-activating nucleic acid nanoflower to study the molecular mechanism of miR-155 in inflammation DOI Creative Commons
Wenxin Wang,

Jie Geng,

Xiaohan Wu

и другие.

Molecular Medicine, Год журнала: 2022, Номер 28(1)

Опубликована: Июнь 17, 2022

At present, the molecular mechanisms underlying inflammation remain unclear. In recent years, research on has focused stimulating cell by using exogenous pro-inflammatory substances such as lipopolysaccharide (LPS) or inflammatory factors. To investigate mechanism of from a new perspective, we designed nucleic acid nanoflowers (NFs) complex to directly activate genes study response without need for external microbial factors trigger an response. An RNAa-type target gene-activated NFs was designed. Human umbilical vein endothelial cells (HUVECs) were transfected with carrying small activating RNA (saRNAs) co-activate microRNA (miR)-155 and SHIP1 genes. After activation (RNAa)-type transferred into HUVECs, expression miR-155 cancer-related increased, anti-inflammatory reduced, proliferation migration promoted. IL-1β protein levels decreased downregulated. When its both activated, unaltered, maintaining homeostasis. This points towards overexpression can inflammation, that act switch role in development inflammation.

Язык: Английский

Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells DOI Creative Commons

Anna Sałówka,

Aida Martínez-Sánchez

Frontiers in Endocrinology, Год журнала: 2021, Номер 12

Опубликована: Ноя. 4, 2021

Pancreatic β-cells within the islets of Langerhans respond to rising blood glucose levels by secreting insulin that stimulates uptake peripheral tissues maintain whole body energy homeostasis. To different extents, failure β-cell function and/or loss contribute development Type 1 and 2 diabetes. Chronically elevated glycaemia high circulating free fatty acids, as often seen in obese diabetics, accelerate disease. MiRNAs are essential for endocrine mature pancreatic dysregulated In this review, we summarize molecular mechanisms control miRNA expression function, including transcription, stability, posttranscriptional modifications, interaction with RNA binding proteins other non-coding RNAs. We also discuss which these responsible nutrient-mediated regulation activity miRNAs identify some more important knowledge gaps field.

Язык: Английский

Процитировано

7

Integrated analysis of blood mRNAs and microRNAs reveals immune changes with age in the Yangtze finless porpoise (Neophocaena asiaeorientalis) DOI
Denghua Yin,

Danqing Lin,

Hongyi Guo

и другие.

Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, Год журнала: 2021, Номер 256, С. 110635 - 110635

Опубликована: Июнь 10, 2021

Язык: Английский

Процитировано

7

Host microRNA interactions with the SARS-CoV-2 viral genome 3’-untranslated region DOI Creative Commons
Caleb J. Frye, Caylee L. Cunningham, Mihaela‐Rita Mihailescu

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Май 19, 2023

Abstract The 2019 pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has marked spread of a novel human coronavirus. While viral life cycle is well understood, most interactions at virus-host interface remain elusive. Furthermore, molecular mechanisms behind disease severity and immune evasion are still largely unknown. Conserved elements genome such as secondary structures within 5’- 3’-untranslated regions (UTRs) serve attractive targets interest could prove crucial in furthering our understanding interactions. It been proposed that microRNA (miR) with components be used both virus host for their own benefit. Analysis SARS-CoV-2 3’-UTR revealed potential cellular miR binding sites, providing sites specific virus. In this study, we demonstrate binds miRNAs miR-760-3p, miR-34a-5p, miR-34b-5p, which have shown to influence translation interleukin-6 (IL-6), IL-6 receptor (IL-6R), progranulin (PGRN), respectively, proteins roles response inflammatory pathways. recent work suggests miR-34a-5p miR-34b-5p target inhibit proteins. Native gel electrophoresis steady-state fluorescence spectroscopy were utilized characterize these miRs predicted 3’-UTR. Additionally, investigated 2’-fluoro-D-arabinonucleic acid (FANA) analogs competitive inhibitors detailed study drive development antiviral treatments infection, provide basis cytokine release implicate host-virus interface. Author Summary Severe (SARS-CoV-2) now plagued world over three years. time, scientific advancements allowed mRNA vaccines targeted drugs. However, many cycle, interface, particular combating observed dysregulation mild cases infection. To uncover link between infection dysregulation, microRNAs associated response, particularly emphasize them We biophysical methods Lastly, introduce disruptors interactions, intent therapeutic intervention.

Язык: Английский

Процитировано

2

A glance into the roles of microRNAs (exosomal and non-exosomal) in polycystic ovary syndrome DOI Creative Commons

Afsane Masoudi Chelegahi,

Seyed Omar Ebrahimi, Somayeh Reiisi

и другие.

Obstetrics & Gynecology Science, Год журнала: 2023, Номер 67(1), С. 30 - 48

Опубликована: Дек. 5, 2023

Polycystic ovarian syndrome (PCOS) is a common endocrine disorder in women of reproductive age. The clinical symptoms include hyperandrogenism, chronic anovulation, and multiple cysts. PCOS strongly associated with obesity insulin resistance. MicroRNAs (miRNAs) are group short non-coding RNAs that play role the post-transcriptional regulation gene expression translational inhibition. They vital metabolic hormonal processes as well oocyte maturation folliculogenesis female system. miRNAs can be used diagnostic biomarkers or therapeutic targets because their stability. encapsulation extracellular vesicles exosomes contributes to Exosomes constantly secreted by many cells size about 30 150 nm. Enveloping release them for cellular communication. induced transfer novel process genetic exchange between cells. Many studies have shown along non-exosomal miRNAs, different types exosomal derived from serum follicular fluid an essential pathogenesis. These involved development various functions granulosa cells, apoptosis, cell proliferation, atresia. present study aimed comprehensively review evidence on affected pathways under both circumstances, primarily focusing pathogenesis PCOS.

Язык: Английский

Процитировано

2

Preparation of a miR-155-activating nucleic acid nanoflower to study the molecular mechanism of miR-155 in inflammation DOI Creative Commons
Wenxin Wang,

Jie Geng,

Xiaohan Wu

и другие.

Molecular Medicine, Год журнала: 2022, Номер 28(1)

Опубликована: Июнь 17, 2022

At present, the molecular mechanisms underlying inflammation remain unclear. In recent years, research on has focused stimulating cell by using exogenous pro-inflammatory substances such as lipopolysaccharide (LPS) or inflammatory factors. To investigate mechanism of from a new perspective, we designed nucleic acid nanoflowers (NFs) complex to directly activate genes study response without need for external microbial factors trigger an response. An RNAa-type target gene-activated NFs was designed. Human umbilical vein endothelial cells (HUVECs) were transfected with carrying small activating RNA (saRNAs) co-activate microRNA (miR)-155 and SHIP1 genes. After activation (RNAa)-type transferred into HUVECs, expression miR-155 cancer-related increased, anti-inflammatory reduced, proliferation migration promoted. IL-1β protein levels decreased downregulated. When its both activated, unaltered, maintaining homeostasis. This points towards overexpression can inflammation, that act switch role in development inflammation.

Язык: Английский

Процитировано

4