Evidence map›Paper›PMID 17592126›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Ceramide transfer protein function is essential for normal oxidative stress response and lifespan.

Raghavendra Pralhada Rao, Changqing Yuan, Jeremy C Allegood, Satinder S Rawat, Michael Beth Edwards, Xin Wang, Alfred H Merrill, Usha Acharya, Jairaj K Acharya

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

79 citing papers in PubMed, 154 citations in OpenAlex.

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  15. Article
  16. Sphingolipids in neurodegenerative diseases.Frontiers in neuroscience · 2023
    Review
  17. Alkaline ceramidase (Frontiers in physiology · 2023
    Article
  18. Review
  19. Article
  20. Article

19 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

9 authors at 4 institutions in 1 country.

Raghavendra Pralhada RaoLaboratory of Cell and Developmental Signaling, National Cancer Institute Frederick, Frederick, MD 21702, USA.
Changqing Yuan
Jeremy C Allegood
Satinder S Rawat
Michael Beth Edwards
Xin Wang
Alfred H Merrill
Usha Acharya
Jairaj K Acharya
National Cancer Institute · USFrederick National Laboratory for Cancer Research · USGeorgia Institute of Technology · USUniversity of Massachusetts Chan Medical School · US

Funding

STEROL LIPIDSU54GM069338 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DENNIS, EDWARD A · 2003 to 2013
$72.2M
Ceramide Metabolism and Photoreceptor HomeostasisR01EY016469 · NEI · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI ACHARYA, USHA R · 2005 to 2013
$2.9M
PHOSPHOLIPID AND SPHINGOLIPID SIGNALING IN DROSOPHILAZ01BC010331 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI ACHARYA, JAIRAJ · 2000 to 2008
$1.9M
Intramural NIH HHSNEI NIH HHS R01 EY016469NEI NIH HHS R01EY16469NIGMS NIH HHS GM69338NIGMS NIH HHS U54 GM069338
6 · The paper itself

Abstract

Ceramide transfer protein (CERT) transfers ceramide from the endoplasmic reticulum to the Golgi complex, a process critical in synthesis and maintenance of normal levels of sphingolipids in mammalian cells. However, how its function is integrated into development and physiology of the animal is less clear. Here, we report the in vivo consequences of loss of functional CERT protein. We generated Drosophila melanogaster mutant flies lacking a functional CERT (Dcert) protein using chemical mutagenesis and a Western blot-based genetic screen. The mutant flies die early between days 10 and 30, whereas controls lived between 75 and 90 days. They display >70% decrease in ceramide phosphoethanolamine (the sphingomyelin analog in Drosophila) and ceramide. These changes resulted in increased plasma membrane fluidity that renders them susceptible to reactive oxygen species and results in enhanced oxidative damage to cellular proteins. Consequently, the flies showed reduced thermal tolerance that was exacerbated with aging and metabolic compromise such as decreasing ATP and increasing glucose levels, reminiscent of premature aging. Our studies demonstrate that maintenance of physiological levels of ceramide phosphoethanolamine by CERT in vivo is required to prevent oxidative damages to cellular components that are critical for viability and normal lifespan of the animal.

Indexed as

AnimalsAnimals, Genetically ModifiedCarrier ProteinsCeramidesDrosophila melanogasterDrosophila ProteinsLongevityOxidative StressCarrier ProteinsCeramidesCERT protein, DrosophilaDrosophila Proteins

Identifiers

PMID17592126
PMCPMC1899189
OpenAlexW2023112097

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.