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MicroRNA networks in pancreatic islet cells : Normal function and type 2 diabetes

Eliasson, Lena LU orcid and Esguerra, Jonathan L.S. LU orcid (2020) In Diabetes 69(5). p.804-812
Abstract

Impaired insulin secretion from the pancreatic β-cells is central in the pathogenesis of type 2 diabetes (T2D), and microRNAs (miRNAs) are fundamental regulatory factors in this process. Differential expression of miRNAs contributes to β-cell adaptation to compensate for increased insulin resistance, but deregulation of miRNA expression can also directly cause β-cell impairment during the development of T2D. miRNAs are small noncoding RNAs that posttranscriptionally reduce gene expression through translational inhibition or mRNA destabilization. The nature of miRNA targeting implies the presence of complex and large miRNA-mRNA regulatory networks in every cell, including the insulin-secreting β-cell. Here we exemplify one such network... (More)

Impaired insulin secretion from the pancreatic β-cells is central in the pathogenesis of type 2 diabetes (T2D), and microRNAs (miRNAs) are fundamental regulatory factors in this process. Differential expression of miRNAs contributes to β-cell adaptation to compensate for increased insulin resistance, but deregulation of miRNA expression can also directly cause β-cell impairment during the development of T2D. miRNAs are small noncoding RNAs that posttranscriptionally reduce gene expression through translational inhibition or mRNA destabilization. The nature of miRNA targeting implies the presence of complex and large miRNA-mRNA regulatory networks in every cell, including the insulin-secreting β-cell. Here we exemplify one such network using our own data on differential miRNA expression in the islets of T2D Goto- Kakizaki rat model. Several biological processes are influenced by multiple miRNAs in the β-cell, but so far most studies have focused on dissecting the mechanism of action of individual miRNAs. In this Perspective we present key islet miRNA families involved in T2D pathogenesis including miR-200, miR-7, miR-184, miR-212/miR-132, and miR-130a/b/miR-152. Finally, we highlight four challenges and opportunities within islet miRNA research, ending with a discussion on how miRNAs can be utilized as therapeutic targets contributing to personalized T2D treatment strategies.

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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Diabetes
volume
69
issue
5
pages
9 pages
publisher
American Diabetes Association Inc.
external identifiers
  • pmid:32312896
  • scopus:85084139411
ISSN
0012-1797
DOI
10.2337/dbi19-0016
language
English
LU publication?
yes
id
fa3ffbda-060b-49c2-9f5a-58b8bf2a2d86
date added to LUP
2021-01-05 09:50:32
date last changed
2024-06-14 06:10:10
@article{fa3ffbda-060b-49c2-9f5a-58b8bf2a2d86,
  abstract     = {{<p>Impaired insulin secretion from the pancreatic β-cells is central in the pathogenesis of type 2 diabetes (T2D), and microRNAs (miRNAs) are fundamental regulatory factors in this process. Differential expression of miRNAs contributes to β-cell adaptation to compensate for increased insulin resistance, but deregulation of miRNA expression can also directly cause β-cell impairment during the development of T2D. miRNAs are small noncoding RNAs that posttranscriptionally reduce gene expression through translational inhibition or mRNA destabilization. The nature of miRNA targeting implies the presence of complex and large miRNA-mRNA regulatory networks in every cell, including the insulin-secreting β-cell. Here we exemplify one such network using our own data on differential miRNA expression in the islets of T2D Goto- Kakizaki rat model. Several biological processes are influenced by multiple miRNAs in the β-cell, but so far most studies have focused on dissecting the mechanism of action of individual miRNAs. In this Perspective we present key islet miRNA families involved in T2D pathogenesis including miR-200, miR-7, miR-184, miR-212/miR-132, and miR-130a/b/miR-152. Finally, we highlight four challenges and opportunities within islet miRNA research, ending with a discussion on how miRNAs can be utilized as therapeutic targets contributing to personalized T2D treatment strategies.</p>}},
  author       = {{Eliasson, Lena and Esguerra, Jonathan L.S.}},
  issn         = {{0012-1797}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{804--812}},
  publisher    = {{American Diabetes Association Inc.}},
  series       = {{Diabetes}},
  title        = {{MicroRNA networks in pancreatic islet cells : Normal function and type 2 diabetes}},
  url          = {{http://dx.doi.org/10.2337/dbi19-0016}},
  doi          = {{10.2337/dbi19-0016}},
  volume       = {{69}},
  year         = {{2020}},
}