Evidence map›Paper›PMID 23029265›Full record

ArticlePloS one2012

Mitochondrial fusion is essential for steroid biosynthesis.

Alejandra Duarte, Cecilia Poderoso, Mariana Cooke, Gastón Soria, Fabiana Cornejo Maciel, Vanesa Gottifredi, Ernesto J Podestá

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

68 citing papers in PubMed, 144 citations in OpenAlex.

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8 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

7 authors at 2 institutions in 1 country.

Alejandra DuarteInstituto de Investigaciones Biomédicas (INBIOMED), Department of Human Biochemistry, School of Medicine, University of Buenos Aires-CONICET, Buenos Aires, Argentina.
Cecilia Poderoso
Mariana Cooke
Gastón Soria
Fabiana Cornejo Maciel
Vanesa Gottifredi
Ernesto J Podestá
University of Buenos Aires · ARConsejo Nacional de Investigaciones Científicas y Técnicas · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although the contribution of mitochondrial dynamics (a balance in fusion/fission events and changes in mitochondria subcellular distribution) to key biological process has been reported, the contribution of changes in mitochondrial fusion to achieve efficient steroid production has never been explored. The mitochondria are central during steroid synthesis and different enzymes are localized between the mitochondria and the endoplasmic reticulum to produce the final steroid hormone, thus suggesting that mitochondrial fusion might be relevant for this process. In the present study, we showed that the hormonal stimulation triggers mitochondrial fusion into tubular-shaped structures and we demonstrated that mitochondrial fusion does not only correlate-with but also is an essential step of steroid production, being both events depend on PKA activity. We also demonstrated that the hormone-stimulated relocalization of ERK1/2 in the mitochondrion, a critical step during steroidogenesis, depends on mitochondrial fusion. Additionally, we showed that the SHP2 phosphatase, which is required for full steroidogenesis, simultaneously modulates mitochondrial fusion and ERK1/2 localization in the mitochondrion. Strikingly, we found that mitofusin 2 (Mfn2) expression, a central protein for mitochondrial fusion, is upregulated immediately after hormone stimulation. Moreover, Mfn2 knockdown is sufficient to impair steroid biosynthesis. Together, our findings unveil an essential role for mitochondrial fusion during steroidogenesis. These discoveries highlight the importance of organelles' reorganization in specialized cells, prompting the exploration of the impact that organelle dynamics has on biological processes that include, but are not limited to, steroid synthesis.

Indexed as

Mitochondrial DynamicsAnimalsCarbonyl Cyanide m-Chlorophenyl HydrazoneCell LineChorionic GonadotropinCyclic AMPCyclic AMP-Dependent Protein KinasesEndoplasmic ReticulumEpidermal Growth FactorExtracellular Signal-Regulated MAP KinasesGene Expression RegulationGene Knockdown TechniquesGTP PhosphohydrolasesHumansIsoquinolinesKineticsCarbonyl Cyanide m-Chlorophenyl HydrazoneChorionic GonadotropinCyclic AMPCyclic AMP-Dependent Protein KinasesEpidermal Growth FactorExtracellular Signal-Regulated MAP KinasesGTP PhosphohydrolasesIsoquinolinesMFN2 protein, humanMitochondrial ProteinsN-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamideProgesteroneProtein Tyrosine Phosphatase, Non-Receptor Type 11Proton IonophoresSulfonamides

Identifiers

PMID23029265
PMCPMC3448708
OpenAlexW1999253411

What OpenQuestion holds

Textmetadata
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.