Evidence map›Paper›PMID 12079506›Full record

ArticleBMC cell biology2002

Negative regulation of mitochondrial VDAC channels by C-Raf kinase.

Véronique Le Mellay, Jakob Troppmair, Roland Benz, Ulf R Rapp

Open access · goldAbstract read
In one paragraph

Article in BMC cell biology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. VDAC1: from structure to cancer therapy.Frontiers in oncology · 2012
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Regulation of hexokinase binding to VDAC.Journal of bioenergetics and biomembranes · 2008
    Review
  15. Article
  16. Review
  17. Article
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

4 authors at 1 institution in 1 country.

Véronique Le MellayInstitut für Medizinische Strahlenkunde und Zellforschung (MSZ), Universität Würzburg, 97078 Würzburg, Germany. lemellay@univ-montp2.fr
Jakob Troppmair
Roland Benz
Ulf R Rapp
University of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGrowth of cancer cells results from the disturbance of positive and negative growth control mechanisms and the prolonged survival of these genetically altered cells due to the failure of cellular suicide programs. Genetic and biochemical approaches have identified Raf family serine/threonine kinases B-Raf and C-Raf as major mediators of cell survival. C-Raf cooperates with Bcl-2/Bcl-XL in suppression of apoptosis by a mechanism that involves targeting of C-Raf to the outer mitochondrial membrane and inactivation of the pro-apoptotic protein Bad. However, apoptosis suppression by C-Raf also occurs in cells lacking expression of Bad or Bcl-2.

resultsHere we show that even in the absence of Bcl-2/Bcl-XL, mitochondria-targeted C-Raf inhibits cytochrome c release and caspase activation induced by growth factor withdrawal. To clarify the mechanism of Bcl-2 independent survival control by C-Raf at the mitochondria a search for novel mitochondrial targets was undertaken that identified voltage-dependent anion channel (VDAC), a mitochondrial protein (porin) involved in exchange of metabolites for oxidative phosphorylation. C-Raf forms a complex with VDAC in vivo and blocks reconstitution of VDAC channels in planar bilayer membranes in vitro.

conclusionWe propose that this interaction may be responsible for the Raf-induced inhibition of cytochrome c release from mitochondria in growth factor starved cells. Moreover, C-Raf kinase-induced VDAC inhibition may regulate the metabolic function of mitochondria and mediate the switch to aerobic glycolysis that is common to cancer cells.

Indexed as

AnimalsApoptosisCaspasesCell LineCytochrome c GroupKineticsMembrane PotentialsMiceMitochondriaPorinsProto-Oncogene Proteins c-rafVoltage-Dependent Anion ChannelsCaspasesCytochrome c GroupPorinsProto-Oncogene Proteins c-rafVoltage-Dependent Anion Channels

Identifiers

PMID12079506
PMCPMC116581
OpenAlexW1528039142

What OpenQuestion holds

Textmetadata
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.