Evidence map›Paper›PMID 29127192›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2018

Lipotoxic very-long-chain ceramides cause mitochondrial dysfunction, oxidative stress, and cell death in cardiomyocytes.

Brittany A Law, Xianghai Liao, Kelsey S Moore, Abigail Southard, Patrick Roddy, Ruiping Ji, Zdzislaw Szulc, Ala Bielawska, P Christian Schulze, L Ashley Cowart

Open access · bronzeAbstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 140 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
140citing papers in PubMed, 1 pooled it
7.9field-weighted citation impact, top 2% 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

140 citing papers in PubMed, 1 synthesis or guideline pooled it, 210 citations in OpenAlex.

  1. Ceramide Remodeling and Risk of Cardiovascular Events and Mortality.Journal of the American Heart Association · 2018
    Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Review
  7. Sphingolipids and Atherosclerosis.Current atherosclerosis reports · 2026
    Review
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  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
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  17. Article
  18. Review
  19. Sphingolipids in Emotional Well-Being.Journal of neurochemistry · 2026
    Review
  20. Biomarkers of Cardiac Metabolic Flexibility in Health, HFrEF and HFpEF.International journal of molecular sciences · 2026
    Review

80 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

10 authors at 4 institutions in 2 countries.

Brittany A LawDepartment of Medicine-Cardiology, Duke University Medical Center, Durham, North Carolina, USA.
Xianghai LiaoDivision of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York, USA.
Kelsey S MooreDepartment of Biochemistry and Molecular Biology, The Medical University of South Carolina, Charleston, South Carolina, USA.
Abigail SouthardDepartment of Biochemistry and Molecular Biology, The Medical University of South Carolina, Charleston, South Carolina, USA.
Patrick RoddyDepartment of Biochemistry and Molecular Biology, The Medical University of South Carolina, Charleston, South Carolina, USA.
Ruiping JiDivision of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York, USA.
Zdzislaw SzulcDepartment of Biochemistry and Molecular Biology, The Medical University of South Carolina, Charleston, South Carolina, USA.
Ala BielawskaDepartment of Biochemistry and Molecular Biology, The Medical University of South Carolina, Charleston, South Carolina, USA.
P Christian SchulzeDivision of Cardiology, Department of Medicine, Columbia University Medical Center, New York, New York, USA.
L Ashley CowartDepartment of Biochemistry and Molecular Biology, The Medical University of South Carolina, Charleston, South Carolina, USA.
Medical University of South Carolina · USColumbia University Irving Medical Center · USDuke Medical Center · USFriedrich Schiller University Jena · DE

Funding

Cardiac Lipotoxicity and Ceramide Metabolism in Heart FailureR01HL114813 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI COLOMBO, PAOLO C, SCHULZE, P. CHRISTIAN · 2013 to 2017
$3.0M
Sphingolipids in Diabetic CardiomyopathyR01HL117233 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI COWART, LAUREN ASHLEY · 2014 to 2018
$1.9M
Sphingolipids in the Pathophysiology of Obesity and DiabetesI01BX000200 · VA · VA VETERANS ADMINISTRATION HOSPITAL · PI COWART, LAUREN ASHLEY · 2009 to 2025
–
BLRD VA I01 BX000200NHLBI NIH HHS R01 HL114813NHLBI NIH HHS R01 HL117233
6 · The paper itself

Abstract

Accumulating data support a role for bioactive lipids as mediators of lipotixicity in cardiomyocytes. One class of these, the ceramides, constitutes a family of molecules that differ in structure and are synthesized by distinct enzymes, ceramide synthase (CerS)1-CerS6. Data support that specific ceramides and the enzymes that catalyze their formation play distinct roles in cell function. In a mouse model of diabetic cardiomyopathy, sphingolipid profiling revealed increases in not only the CerS5-derived ceramides but also in very long chain (VLC) ceramides derived from CerS2. Overexpression of CerS2 elevated VLC ceramides caused insulin resistance, oxidative stress, mitochondrial dysfunction, and mitophagy. Palmitate induced CerS2 and oxidative stress, mitophagy, and apoptosis, which were prevented by depletion of CerS2. Neither overexpression nor knockdown of CerS5 had any function in these processes, suggesting a chain-length dependent impact of ceramides on mitochondrial function. This concept was also supported by the observation that synthetic mitochondria-targeted ceramides led to mitophagy in a manner proportional to N-acyl chain length. Finally, blocking mitophagy exacerbated cell death. Taken together, our results support a model by which CerS2 and VLC ceramides have a distinct role in lipotoxicity, leading to mitochondrial damage, which results in subsequent adaptive mitophagy. Our data reveal a novel lipotoxic pathway through CerS2.-Law, B. A., Liao, X., Moore, K. S., Southard, A., Roddy, P., Ji, R., Szulc, Z., Bielawska, A., Schulze, P. C., Cowart, L. A. Lipotoxic very-long-chain ceramides cause mitochondrial dysfunction, oxidative stress, and cell death in cardiomyocytes.

Indexed as

Cell DeathCell LineCeramidesHumansMitochondria, HeartMitophagyMyocytes, CardiacOxidative StressCeramidescardiovascular diseasediabetic cardiomyopathymitophagysphingolipid

Identifiers

PMID29127192
PMCPMC5892719
OpenAlexW2767518162

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.