Evidence map›Paper›PMID 22016110›Full record

ArticleNeuropharmacology2012

Distinct generation, pharmacology, and distribution of sphingosine 1-phosphate and dihydrosphingosine 1-phosphate in human neural progenitor cells.

Phillip Callihan, Nicholas C Zitomer, Michael V Stoeling, Perry C Kennedy, Kevin R Lynch, Ronald T Riley, Shelley B Hooks

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. ORMDL Proteins Turnover via Proteasome and Autophagy Is Cell-Type Dependent and Tied to Ceramide Homeostasis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Frontiers in aging · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. The role of dihydrosphingolipids in disease.Cellular and molecular life sciences : CMLS · 2019
    Review
  12. Review
  13. Alkaline ceramidase 2 is essential for the homeostasis of plasma sphingoid bases and their phosphates.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  14. Article
  15. Article
  16. 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

7 authors at 3 institutions in 1 country.

Phillip CallihanDepartment of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, 250 West Green Street, Athens, GA 30602-2352, USA.
Nicholas C Zitomer
Michael V Stoeling
Perry C Kennedy
Kevin R Lynch
Ronald T Riley
Shelley B Hooks
Agricultural Research Service · USUniversity of Georgia · USUniversity of Virginia · US

Funding

BIOTECHNOLOGY TRAINING PROGRAMT32GM008715 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LAURIE, GORDON WILLIAM · 2000 to 2019
$6.6M
Molecular Pharmacology of Sphingosine 1-PhosphateR01GM067958 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LYNCH, KEVIN R. · 2004 to 2014
$3.7M
NIGMS NIH HHS R01 GM067958NIGMS NIH HHS T32 GM008715
6 · The paper itself

Abstract

In vivo and in vitro studies suggest a crucial role for Sphingosine 1-phosphate (S1P) and its receptors in the development of the nervous system. Dihydrosphingosine 1-phosphate (dhS1P), a reduced form of S1P, is an agonist at S1P receptors, but the pharmacology and physiology of dhS1P has not been widely studied. The mycotoxin fumonisin B1 (FB(1)) is a potent inhibitor of ceramide synthases and causes selective accumulation of dihydrosphingosine and dhS1P. Recent studies suggest that maternal exposure to FB(1) correlates with the development of neural tube defects (NTDs) in which the neural epithelial progenitor cell layers of the developing brain fail to fuse. We hypothesize that the altered balance of S1P and dhS1P in neural epithelial cells contributes to the developmental effects of FB(1). The goal of this work was first to define the effect of FB(1) exposure on levels of sphingosine and dh-sphingosine and their receptor-active 1-phosphate metabolites in human embryonic stem cell-derived neural epithelial progenitor (hES-NEP) cells; and second, to define the relative activity of dhS1P and S1P in hES-NEP cells. We found that dhS1P is a more potent stimulator of inhibition of cAMP and Smad phosphorylation than is S1P in neural progenitors, and this difference in apparent potency may be due, in part, to more persistent presence of extracellular dhS1P applied to human neural progenitors rather than a higher activity at S1P receptors. This study establishes hES-NEP cells as a useful human in vitro model system to study the mechanism of FB(1) toxicity and the molecular pharmacology of sphingolipid signaling. This article is part of a Special Issue entitled 'Post-Traumatic Stress Disorder'.

Indexed as

Cells, CulturedEnzyme InhibitorsFumonisinsHumansLysophospholipidsNeural Stem CellsPhosphorylationReceptors, LysosphingolipidSignal TransductionSmad ProteinsSphingosinedihydrosphingosine 1-phosphateEnzyme Inhibitorsfumonisin B1FumonisinsLysophospholipidsReceptors, LysosphingolipidSmad ProteinsSphingosinesphingosine 1-phosphate

Identifiers

PMID22016110
PMCPMC3677231
OpenAlexW2004968311

What OpenQuestion holds

Textmetadata
LicenceTDM
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.