| Title |
PIWI-interacting RNAs as novel regulators of pancreatic beta cell function
|
|---|---|
| Published in |
Diabetologia, July 2017
|
| DOI | 10.1007/s00125-017-4368-2 |
| Pubmed ID | |
| Authors |
Imène Sarah Henaoui, Cécile Jacovetti, Inês Guerra Mollet, Claudiane Guay, Jonathan Sobel, Lena Eliasson, Romano Regazzi |
| Abstract |
P-element induced Wimpy testis (PIWI)-interacting RNAs (piRNAs) are small non-coding RNAs that interact with PIWI proteins and guide them to silence transposable elements. They are abundantly expressed in germline cells and play key roles in spermatogenesis. There is mounting evidence that piRNAs are also present in somatic cells, where they may accomplish additional regulatory tasks. The aim of this study was to identify the piRNAs expressed in pancreatic islets and to determine whether they are involved in the control of beta cell activities. piRNA profiling of rat pancreatic islets was performed by microarray analysis. The functions of piRNAs were investigated by silencing the two main Piwi genes or by modulating the level of selected piRNAs in islet cells. We detected about 18,000 piRNAs in rat pancreatic islets, many of which were differentially expressed throughout islet postnatal development. Moreover, we identified changes in the level of several piRNAs in the islets of Goto-Kakizaki rats, a well-established animal model of type 2 diabetes. Silencing of Piwil2 or Piwil4 genes in adult rat islets caused a reduction in the level of several piRNAs and resulted in defective insulin secretion and increased resistance of the cells to cytokine-induced cell death. Furthermore, overexpression in the islets of control animals of two piRNAs that are upregulated in diabetic rats led to a selective defect in glucose-induced insulin release. Our results provide evidence for a role of PIWI proteins and their associated piRNAs in the control of beta cell functions, and suggest a possible involvement in the development of type 2 diabetes. Data have been deposited in Gene Expression Omnibus repository under the accession number GSE93792. Data can be accessed via the following link: https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?token=ojklueugdzehpkv&acc=GSE93792. |
X Demographics
The data shown below were collected from the profiles of 7 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 1 | 14% |
| United States | 1 | 14% |
| Unknown | 5 | 71% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 4 | 57% |
| Scientists | 2 | 29% |
| Science communicators (journalists, bloggers, editors) | 1 | 14% |
Mendeley readers
The data shown below were compiled from readership statistics for 53 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 53 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 10 | 19% |
| Researcher | 7 | 13% |
| Other | 5 | 9% |
| Student > Master | 5 | 9% |
| Student > Postgraduate | 3 | 6% |
| Other | 9 | 17% |
| Unknown | 14 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Biochemistry, Genetics and Molecular Biology | 16 | 30% |
| Medicine and Dentistry | 6 | 11% |
| Agricultural and Biological Sciences | 4 | 8% |
| Immunology and Microbiology | 2 | 4% |
| Unspecified | 1 | 2% |
| Other | 5 | 9% |
| Unknown | 19 | 36% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 October 2017.
All research outputs
#7,220,169
of 22,988,380 outputs
Outputs from Diabetologia
#2,810
of 5,085 outputs
Outputs of similar age
#113,667
of 312,005 outputs
Outputs of similar age from Diabetologia
#76
of 87 outputs
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