Evidence map›Paper›PMID 26801188›Full record

ReviewJournal of bioenergetics and biomembranes2017

Ceramide channels and mitochondrial outer membrane permeability.

Marco Colombini

Abstract readReview
PubMed Publisher
In one paragraph

Review in Journal of bioenergetics and biomembranes, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

54 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Ceramide as a Biomarker for HFpEF in Women: Menopause, Aging, and Pregnancy.International journal of molecular sciences · 2025
    Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Intervention effect of Cigu Xiaozhi prescription on ceramide lipoapoptosis in non-alcoholic fatty liver disease.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2024
    Article
  14. High fried food consumption impacts anxiety and depression due to lipid metabolism disturbance and neuroinflammation.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. The Key Role of Mitochondrial Function in Health and Disease.Antioxidants (Basel, Switzerland) · 2023
    Review
  17. Article
  18. Article
  19. Role of ceramides in diabetic foot ulcers (Review).International journal of molecular medicine · 2023
    Review
  20. 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

1 author at 1 institution in 1 country.

Marco ColombiniDepartment of Biology, University of Maryland, College Park, MD, 20742, USA. colombini@umd.edu.
University of Maryland, College Park · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Among the permeability pathways in the mitochondrial outer membrane (MOM), whose elucidation was pioneered by Kathleen Kinnally, there is one formed by the lipid, ceramide. Electron microscopic visualization shows that ceramide channels are large cylindrical structures of varying pore size, with a most frequent size of 10 nm in diameter, large enough to allow all soluble proteins to translocate between the cytosol and the mitochondrial intermembrane space. Similar results were obtained with electrophysiological measurements. Studies of the dynamics of the channels are consistent with a right cylinder. Ceramide channels form at mole fractions of ceramide that are found in the MOM early in the apoptotic process, before or at the time of protein release from mitochondria. That these channels are good candidates for the protein release pathway is supported by the fact that channel formation is inhibited by anti-apoptotic proteins and favored by Bax. Bcl-xL inhibits ceramide channel formation by binding to the apolar ceramide tails using its hydrophobic grove. Bax interaction with the polar regions of ceramide results in MOM permeabilization through synergy with ceramide. Evidence that ceramide channels actually function to favor apoptosis in vivo is supported by the expression of Bcl-xL containing point mutations in cells induced to undergo apoptosis. The Bcl-xL mutants inhibit differentially Bax and ceramide channels and thus tease apart, to some extent, these two modes of MOM permeabilization. Ceramide channels have the right properties and appropriate regulation to be key players in the induction of apoptosis.

Indexed as

Protein TransportApoptosisApoptosis Regulatory ProteinsCeramidesMitochondriaMitochondrial MembranesPermeabilityApoptosis Regulatory ProteinsCeramidesApoptosisBaxBcl-xLPoreSphingolipid

Identifiers

PMID26801188
OpenAlexW2258932259

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.