Evidence map›Paper›PMID 15737239›Full record

ArticleLipids in health and disease2005

L-histidine inhibits production of lysophosphatidic acid by the tumor-associated cytokine, autotaxin.

Timothy Clair, Eunjin Koh, Malgorzata Ptaszynska, Russell W Bandle, Lance A Liotta, Elliott Schiffmann, Mary L Stracke

Open access · goldAbstract read
In one paragraph

Article in Lipids in health and disease, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.1field-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

18 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Design and Development of Autotaxin Inhibitors.Pharmaceuticals (Basel, Switzerland) · 2021
    Review
  3. Structure-Based Discovery of Novel Chemical Classes of Autotaxin Inhibitors.International journal of molecular sciences · 2020
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Aiming drug discovery at lysophosphatidic acid targets.British journal of pharmacology · 2010
    Review
  14. Article
  15. ATX-LPA receptor axis in inflammation and cancer.Cell cycle (Georgetown, Tex.) · 2009
    Review
  16. Autotaxin.Cellular and molecular life sciences : CMLS · 2009
    Review
  17. Article
  18. Review
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 2 institutions in 1 country.

Timothy ClairLaboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. timclair@helix.nih.gov
Eunjin Koh
Malgorzata Ptaszynska
Russell W Bandle
Lance A Liotta
Elliott Schiffmann
Mary L Stracke
National Institutes of Health · USNational Cancer Institute · US

Funding

Regulation of Metastasis and Angiogenesis by AutotaxinZ01BC010673 · NCI · BASIC SCIENCES · PI ROBERTS, DAVID D · 2005 to 2007
$165k
6 · The paper itself

Abstract

backgroundAutotaxin (ATX, NPP-2), originally purified as a potent tumor cell motility factor, is now known to be the long-sought plasma lysophospholipase D (LPLD). The integrity of the enzymatic active site, including three crucial histidine moieties, is required for motility stimulation, as well as LPLD and 5'nucleotide phosphodiesterase (PDE) activities. Except for relatively non-specific chelation agents, there are no known inhibitors of the ATX LPLD activity.

resultsWe show that millimolar concentrations of L-histidine inhibit ATX-stimulated but not LPA-stimulated motility in two tumor cell lines, as well as inhibiting enzymatic activities. Inhibition is reversed by 20-fold lower concentrations of zinc salt. L-histidine has no significant effect on the Km of LPLD, but reduces the Vmax by greater than 50%, acting as a non-competitive inhibitor. Several histidine analogs also inhibit the LPLD activity of ATX; however, none has greater potency than L-histidine and all decrease cell viability or adhesion.

conclusionL-histidine inhibition of LPLD is not a simple stoichiometric chelation of metal ions but is more likely a complex interaction with a variety of moieties, including the metal cation, at or near the active site. The inhibitory effect of L-histidine requires all three major functional groups of histidine: the alpha amino group, the alpha carboxyl group, and the metal-binding imidazole side chain. Because of LPA's involvement in pathological processes, regulation of its formation by ATX may give insight into possible novel therapeutic approaches.

Indexed as

Cations, DivalentCell Line, TumorCell ProliferationChelating AgentsCytokinesEnzyme ActivationHistidineHumansLysophospholipase DLysophospholipidsMolecular StructureMultienzyme ComplexesNeoplasmsPhosphodiesterase IPhosphoric Diester HydrolasesPyrophosphatasesCations, DivalentChelating AgentsCytokinesHistidinelysophosphatidic acidLysophospholipase DLysophospholipidsMultienzyme ComplexesPhosphodiesterase IPhosphoric Diester HydrolasesPyrophosphatasesZinc

Identifiers

PMID15737239
PMCPMC554093
OpenAlexW2146448541

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.