Evidence map›Paper›PMID 22747486›Full record

ArticleThe Biochemical journal2012

Sphingosine kinase type 2 inhibition elevates circulating sphingosine 1-phosphate.

Yugesh Kharel, Mithun Raje, Ming Gao, Amanda M Gellett, Jose L Tomsig, Kevin R Lynch, Webster L Santos

Abstract read
In one paragraph

Article in The Biochemical journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

60 citing papers in PubMed, 96 citations in OpenAlex.

  1. Article
  2. Article
  3. Sphingolipid signaling in kidney diseases.American journal of physiology. Renal physiology · 2025
    Review
  4. Review
  5. Article
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  7. Article
  8. Review
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  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Sphingolipid Metabolism and Signaling in Endothelial Cell Functions.Advances in experimental medicine and biology · 2022
    Review
  17. Review
  18. 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

7 authors at 1 institution in 1 country.

Yugesh KharelDepartment of Pharmacology, University of Virginia, Charlottesville, VA 22908, USA.
Mithun Raje
Ming Gao
Amanda M Gellett
Jose L Tomsig
Kevin R Lynch
Webster L Santos
University of Virginia · US

Funding

TRAINING IN THE PHARMACOLOGICAL SCIENCEST32GM007055 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LYNCH, KEVIN R. · 1985 to 2022
$7.2M
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 R01GM067958NIGMS NIH HHS T32 GM007055
6 · The paper itself

Abstract

S1P (sphingosine 1-phosphate) is a pleiotropic lipid mediator involved in numerous cellular and physiological functions. Of note among these are cell survival and migration, as well as lymphocyte trafficking. S1P, which exerts its effects via five GPCRs (G-protein-coupled receptors) (S1P1-S1P5), is formed by the action of two SphKs (sphingosine kinases). Although SphK1 is the more intensively studied isotype, SphK2 is unique in it nuclear localization and has been reported to oppose some of the actions ascribed to SphK1. Although several scaffolds of SphK1 inhibitors have been described, there is a scarcity of selective SphK2 inhibitors that are necessary to evaluate the downstream effects of inhibition of this isotype. In the present paper we report a cationic amphiphilic small molecule that is a selective SphK2 inhibitor. In the course of characterizing this compound in wild-type and SphK-null mice, we discovered that administration of the inhibitor to wild-type mice resulted in a rapid increase in blood S1P, which is in contrast with our SphK1 inhibitor that drives circulating S1P levels down. Using a cohort of F2 hybrid mice, we confirmed, compared with wild-type mice, that circulating S1P levels were higher in SphK2-null mice and lower in SphK1-null mice. Thus both SphK1 and SphK2 inhibitors recapitulate the blood S1P levels observed in the corresponding null mice. Moreover, circulating S1P levels mirror SphK2 inhibitor levels, providing a convenient biomarker of target engagement.

Indexed as

AnimalsDrug DesignEnzyme InhibitorsHumansIsoenzymesLysophospholipidsMiceMice, Inbred C57BLMice, KnockoutMolecular StructureOxadiazolesPhosphotransferases (Alcohol Group Acceptor)Recombinant ProteinsSphingolipidsSphingosineSphingosine KinaseEnzyme InhibitorsIsoenzymesLysophospholipidsOxadiazolesPhosphotransferases (Alcohol Group Acceptor)Recombinant ProteinsSphingolipidsSphingosinesphingosine 1-phosphateSphingosine Kinase

Identifiers

PMID22747486
PMCPMC3443596
OpenAlexW2027183994

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.