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

Pancreatic β-cells within the islets of Langerhans respond to rising blood glucose levels by secreting insulin that stimulates glucose uptake by peripheral tissues to maintain whole body energy homeostasis. To different extents, failure of β-cell function and/or β-cell loss contribute to the develop...

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Autores principales: Anna Sałówka, Aida Martinez-Sanchez
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Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:72ee82b219284ae1a16e8d2b951e5da02021-11-04T08:41:04ZMolecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells1664-239210.3389/fendo.2021.704824https://doaj.org/article/72ee82b219284ae1a16e8d2b951e5da02021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fendo.2021.704824/fullhttps://doaj.org/toc/1664-2392Pancreatic β-cells within the islets of Langerhans respond to rising blood glucose levels by secreting insulin that stimulates glucose uptake by peripheral tissues to maintain whole body energy homeostasis. To different extents, failure of β-cell function and/or β-cell loss contribute to the development of Type 1 and Type 2 diabetes. Chronically elevated glycaemia and high circulating free fatty acids, as often seen in obese diabetics, accelerate β-cell failure and the development of the disease. MiRNAs are essential for endocrine development and for mature pancreatic β-cell function and are dysregulated in diabetes. In this review, we summarize the different molecular mechanisms that control miRNA expression and function, including transcription, stability, posttranscriptional modifications, and interaction with RNA binding proteins and other non-coding RNAs. We also discuss which of these mechanisms are responsible for the nutrient-mediated regulation of the activity of β-cell miRNAs and identify some of the more important knowledge gaps in the field.Anna SałówkaAida Martinez-SanchezFrontiers Media S.A.articlemiRNAisletβ-celltype 2 diabetesglucosenutrientsDiseases of the endocrine glands. Clinical endocrinologyRC648-665ENFrontiers in Endocrinology, Vol 12 (2021)
institution DOAJ
collection DOAJ
language EN
topic miRNA
islet
β-cell
type 2 diabetes
glucose
nutrients
Diseases of the endocrine glands. Clinical endocrinology
RC648-665
spellingShingle miRNA
islet
β-cell
type 2 diabetes
glucose
nutrients
Diseases of the endocrine glands. Clinical endocrinology
RC648-665
Anna Sałówka
Aida Martinez-Sanchez
Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells
description Pancreatic β-cells within the islets of Langerhans respond to rising blood glucose levels by secreting insulin that stimulates glucose uptake by peripheral tissues to maintain whole body energy homeostasis. To different extents, failure of β-cell function and/or β-cell loss contribute to the development of Type 1 and Type 2 diabetes. Chronically elevated glycaemia and high circulating free fatty acids, as often seen in obese diabetics, accelerate β-cell failure and the development of the disease. MiRNAs are essential for endocrine development and for mature pancreatic β-cell function and are dysregulated in diabetes. In this review, we summarize the different molecular mechanisms that control miRNA expression and function, including transcription, stability, posttranscriptional modifications, and interaction with RNA binding proteins and other non-coding RNAs. We also discuss which of these mechanisms are responsible for the nutrient-mediated regulation of the activity of β-cell miRNAs and identify some of the more important knowledge gaps in the field.
format article
author Anna Sałówka
Aida Martinez-Sanchez
author_facet Anna Sałówka
Aida Martinez-Sanchez
author_sort Anna Sałówka
title Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells
title_short Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells
title_full Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells
title_fullStr Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells
title_full_unstemmed Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells
title_sort molecular mechanisms of nutrient-mediated regulation of micrornas in pancreatic β-cells
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/72ee82b219284ae1a16e8d2b951e5da0
work_keys_str_mv AT annasałowka molecularmechanismsofnutrientmediatedregulationofmicrornasinpancreaticbcells
AT aidamartinezsanchez molecularmechanismsofnutrientmediatedregulationofmicrornasinpancreaticbcells
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