Evidence map›Paper›PMID 18784083›Full record

ArticleThe Journal of biological chemistry2008

c-Fos activates glucosylceramide synthase and glycolipid synthesis in PC12 cells.

Pilar M Crespo, David C Silvestre, Germán A Gil, Hugo J F Maccioni, José L Daniotti, Beatriz L Caputto

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.5field-weighted citation impact, top 21% 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

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  15. A world of sphingolipids and glycolipids in the brain--novel functions of simple lipids modified with glucose.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2012
    Review
  16. Article
  17. Article
  18. Roles of membrane trafficking in nerve repair and regeneration.Communicative & integrative biology · 2010
    Article
  19. Article
  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

6 authors at 1 institution in 1 country.

Pilar M CrespoCentro de Investigaciones en Química Biológica de Córdoba, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba X5000HUA, Argentina.
David C Silvestre
Germán A Gil
Hugo J F Maccioni
José L Daniotti
Beatriz L Caputto
Universidad Nacional de Córdoba · AR

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

It has been demonstrated that c-Fos has, in addition to its well recognized AP-1 transcription factor activity, the capacity to associate to the endoplasmic reticulum and activate key enzymes involved in the synthesis of phospholipids required for membrane biogenesis during cell growth and neurite formation. Because membrane genesis requires the coordinated supply of all its integral membrane components, the question emerges as to whether c-Fos also activates the synthesis of glycolipids, another ubiquitous membrane component. We show that c-Fos activates the metabolic labeling of glycolipids in differentiating PC12 cells. Specifically, c-Fos activates the enzyme glucosylceramide synthase (GlcCerS), the product of which, GlcCer, is the first glycosylated intermediate in the pathway of synthesis of glycolipids. By contrast, the activities of GlcCer galactosyltransferase 1 and lactosylceramide sialyltransferase 1 are essentially unaffected by c-Fos. Co-immunoprecipitation experiments in cells co-transfected with c-Fos and a V5-tagged version of GlcCerS evidenced that both proteins participate in a physical association. c-Fos expression is tightly regulated by specific environmental cues. This strict regulation assures that lipid metabolism activation will occur as a response to cell requirements thus pointing to c-Fos as an important regulator of key membrane metabolisms in membrane biogenesis-demanding processes.

Indexed as

AnimalsCell DifferentiationCell MembraneEndoplasmic ReticulumEnzyme ActivationGlucosyltransferasesGlycolipidsNeuritesPC12 CellsPhospholipidsProtein BindingProto-Oncogene Proteins c-fosRatsTranscription Factor AP-1ceramide glucosyltransferaseGlucosyltransferasesGlycolipidsPhospholipidsProto-Oncogene Proteins c-fosTranscription Factor AP-1

Identifiers

PMID18784083
PMCPMC2662181
OpenAlexW2005645394

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.