Evidence map›Paper›PMID 25636209›Full record

ArticleDiabetologia2015

Inhibitor of differentiation proteins protect against oxidative stress by regulating the antioxidant-mitochondrial response in mouse beta cells.

Mohammed Bensellam, Magdalene K Montgomery, Jude Luzuriaga, Jeng Yie Chan, D Ross Laybutt

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Article in Diabetologia, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

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26citing papers in PubMed
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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

26 citing papers in PubMed.

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  18. Role ofMolecular vision · 2020
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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Mohammed BensellamGarvan Institute of Medical Research, St Vincent's Hospital, 384 Victoria Street, Darlinghurst, Sydney, NSW, 2010, Australia.
Magdalene K Montgomery
Jude Luzuriaga
Jeng Yie Chan
D Ross Laybutt

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisOxidative stress is implicated in beta cell glucotoxicity in type 2 diabetes. Inhibitor of differentiation (ID) proteins are transcriptional regulators induced by hyperglycaemia in islets, but the mechanisms involved and their role in beta cells are not clear. Here we investigated whether or not oxidative stress regulates ID levels in beta cells and the role of ID proteins in beta cells during oxidative stress.

methodsMIN6 cells were cultured in H2O2 or ribose to induce oxidative stress. ID1, ID3 and small MAF proteins (MAFF, MAFG and MAFK) were inhibited using small interfering RNA. Isolated islets from Id1(-/-), Id3(-/-) and diabetic db/db mice were used.

resultsID1-4 expression was upregulated in vivo in the islets of diabetic db/db mice and stimulated in vitro by ribose and H2O2. Id1/3 inhibition reduced the expression of multiple antioxidant genes and potentiated oxidative stress-induced apoptosis. This finding was associated with increased levels of intracellular reactive oxygen species, altered mitochondrial morphology and reduced expression of Tfam, which encodes a mitochondrial transcription factor, and respiratory chain components. Id1/3 inhibition also reduced the expression of small MAF transcription factors (MafF, MafG and MafK), interacting partners of nuclear factor, erythroid 2-like 2 (NFE2L2), master regulator of the antioxidant response. Inhibition of small MAFs reduced the expression of antioxidant genes and potentiated oxidative stress-induced apoptosis, thus recapitulating the effects of Id1/3 inhibition. CONCLUSIONS/

interpretationOur study identifies IDs as a novel family of oxidative stress-responsive proteins in beta cells. IDs are crucial regulators of the adaptive antioxidant-mitochondrial response that promotes beta cell survival during oxidative stress through a novel link to the NFE2L2-small MAF pathway.

Indexed as

Oxidative StressAnimalsAntioxidantsApoptosisCell LineDiabetes MellitusDisease Models, AnimalGene Expression RegulationInhibitor of Differentiation Protein 1Inhibitor of Differentiation ProteinsInsulin-Secreting CellsMaf Transcription Factors, SmallMice, Inbred C57BLMice, KnockoutMitochondriaNF-E2-Related Factor 2AntioxidantsIdb1 protein, mouseIdb3 protein, mouseInhibitor of Differentiation Protein 1Inhibitor of Differentiation ProteinsMaf Transcription Factors, SmallNfe2l2 protein, mouseNF-E2-Related Factor 2

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.