Evidence map›Paper›PMID 29451229›Full record

ReviewCell research2018

m-AAA proteases, mitochondrial calcium homeostasis and neurodegeneration.

Maria Patron, Hans-Georg Sprenger, Thomas Langer

Open access · hybridAbstract readReview
In one paragraph

Review in Cell research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 3% 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

77 citing papers in PubMed, 1 synthesis or guideline pooled it, 132 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Blockade of Presynaptic αNeurochemical research · 2026
    Article
  9. Molecular mechanisms of mitochondrial AAA+ proteases.The Journal of biological chemistry · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
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  19. Review
  20. Article

17 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 1 country.

Maria PatronMax Planck Institute for Biology of Aging, Cologne, Germany.
Hans-Georg SprengerMax Planck Institute for Biology of Aging, Cologne, Germany.
Thomas LangerMax Planck Institute for Biology of Aging, Cologne, Germany.
University of Cologne · DECologne Excellence Cluster on Cellular Stress Responses in Aging Associated Diseases · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The function of mitochondria depends on ubiquitously expressed and evolutionary conserved m-AAA proteases in the inner membrane. These ATP-dependent peptidases form hexameric complexes built up of homologous subunits. AFG3L2 subunits assemble either into homo-oligomeric isoenzymes or with SPG7 (paraplegin) subunits into hetero-oligomeric proteolytic complexes. Mutations in AFG3L2 are associated with dominant spinocerebellar ataxia (SCA28) characterized by the loss of Purkinje cells, whereas mutations in SPG7 cause a recessive form of hereditary spastic paraplegia (HSP7) with motor neurons of the cortico-spinal tract being predominantly affected. Pleiotropic functions have been assigned to m-AAA proteases, which act as quality control and regulatory enzymes in mitochondria. Loss of m-AAA proteases affects mitochondrial protein synthesis and respiration and leads to mitochondrial fragmentation and deficiencies in the axonal transport of mitochondria. Moreover m-AAA proteases regulate the assembly of the mitochondrial calcium uniporter (MCU) complex. Impaired degradation of the MCU subunit EMRE in AFG3L2-deficient mitochondria results in the formation of deregulated MCU complexes, increased mitochondrial calcium uptake and increased vulnerability of neurons for calcium-induced cell death. A reduction of calcium influx into the cytosol of Purkinje cells rescues ataxia in an AFG3L2-deficient mouse model. In this review, we discuss the relationship between the m-AAA protease and mitochondrial calcium homeostasis and its relevance for neurodegeneration and describe a novel mouse model lacking MCU specifically in Purkinje cells. Our results pledge for a novel view on m-AAA proteases that integrates their pleiotropic functions in mitochondria to explain the pathogenesis of associated neurodegenerative disorders.

Indexed as

AAA ProteinsAnimalsATPases Associated with Diverse Cellular ActivitiesATP-Dependent ProteasesCalciumCalcium ChannelsHumansMetalloendopeptidasesMiceMitochondriaMitochondrial ProteinsModels, AnimalNeurodegenerative DiseasesPurkinje CellsSpastic Paraplegia, HereditarySpinocerebellar AtaxiasAAA ProteinsAfg3l2 protein, mouseATPases Associated with Diverse Cellular ActivitiesATP-Dependent ProteasesCalciumCalcium Channelsm-AAA proteasesMetalloendopeptidasesmitochondrial calcium uniporterMitochondrial ProteinsSpg7 protein, mouse

Identifiers

PMID29451229
PMCPMC5835776
OpenAlexW2789404437

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.