Evidence map›Paper›PMID 34737295›Full record

ArticleNature communications2021

Constitutive activation of the PI3K-Akt-mTORC1 pathway sustains the m.3243 A > G mtDNA mutation.

Chih-Yao Chung, Kritarth Singh, Vassilios N Kotiadis, Gabriel E Valdebenito, Jee Hwan Ahn, Emilie Topley, Joycelyn Tan, William D Andrews, Benoit Bilanges, Robert D S Pitceathly and 3 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 6 institutions in 2 countries.

Chih-Yao ChungDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.ORCID 0000-0002-2263-4181
Kritarth SinghDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.
Vassilios N KotiadisDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.
Gabriel E ValdebenitoDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.ORCID 0000-0002-7169-6653
Jee Hwan AhnDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.ORCID 0000-0002-4370-8362
Emilie TopleyDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.
Joycelyn TanDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.ORCID 0000-0001-8531-5455
William D AndrewsDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.
Benoit BilangesUCL Cancer Institute, 72 Huntley St, London, WC1E 6DD, UK.
Robert D S PitceathlyDepartment of Neuromuscular Diseases, UCL Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, Queen Square, London, WC1N 3BG, UK.ORCID 0000-0002-6123-4551
Gyorgy SzabadkaiDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK.ORCID 0000-0002-3006-3577
Mariia YunevaThe Francis Crick Institute, 1 Midland Rd, London, NW1 1AT, UK.ORCID 0000-0003-3455-9374
Michael R DuchenDepartment of Cell and Developmental Biology and Consortium for Mitochondrial Research, UCL, Gower Street, London, WC1E 6BT, UK. m.duchen@ucl.ac.uk.ORCID 0000-0003-2548-4294
Wellcome Centre for Mitochondrial Research · GBCRUK Lung Cancer Centre of Excellence · GBMRC Laboratory for Molecular Cell Biology · GBNational Hospital for Neurology and Neurosurgery · GBThe Francis Crick Institute · GBUniversity of Padua · IT

Funding

Cancer Research UK C28472/A29264Medical Research Council MR/S002065/1Medical Research Council MR/S005021/1Wellcome Trust FC001223
6 · The paper itself

Abstract

Mutations of the mitochondrial genome (mtDNA) cause a range of profoundly debilitating clinical conditions for which treatment options are very limited. Most mtDNA diseases show heteroplasmy - tissues express both wild-type and mutant mtDNA. While the level of heteroplasmy broadly correlates with disease severity, the relationships between specific mtDNA mutations, heteroplasmy, disease phenotype and severity are poorly understood. We have carried out extensive bioenergetic, metabolomic and RNAseq studies on heteroplasmic patient-derived cells carrying the most prevalent disease related mtDNA mutation, the m.3243 A > G. These studies reveal that the mutation promotes changes in metabolites which are associated with the upregulation of the PI3K-Akt-mTORC1 axis in patient-derived cells and tissues. Remarkably, pharmacological inhibition of PI3K, Akt, or mTORC1 reduced mtDNA mutant load and partially rescued cellular bioenergetic function. The PI3K-Akt-mTORC1 axis thus represents a potential therapeutic target that may benefit people suffering from the consequences of the m.3243 A > G mutation.

Indexed as

DNA, MitochondrialFemaleHumansMechanistic Target of Rapamycin Complex 1MutationPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktDNA, MitochondrialMechanistic Target of Rapamycin Complex 1Phosphatidylinositol 3-KinasesProto-Oncogene Proteins c-akt

Identifiers

PMID34737295
PMCPMC8568893
OpenAlexW3209438149

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.