Evidence map›Paper›PMID 30260496›Full record

ArticleGlia2018

Signal transduction in astrocytes: Localization and release of inorganic polyphosphate.

Plamena R Angelova, Kathrine Z Iversen, Anja G Teschemacher, Sergey Kasparov, Alexander V Gourine, Andrey Y Abramov

Open access · hybridAbstract read
In one paragraph

Article in Glia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 46 citations in OpenAlex.

  1. Inorganic polyphosphate chelates CaBiochemistry and biophysics reports · 2026
    Article
  2. Review
  3. Review
  4. Inorganic Polyphosphate and Human Diseases.Progress in molecular and subcellular biology · 2026
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Exocytosis in Astrocytes.Biomolecules · 2021
    Review
  15. Article
  16. Biology · 2021
    Article
  17. Review
  18. Article
  19. Review
  20. 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

6 authors at 4 institutions in 2 countries.

Plamena R AngelovaDepartment of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, United Kingdom.
Kathrine Z IversenDepartment of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, United Kingdom.
Anja G TeschemacherSchool of Physiology and Pharmacology, University of Bristol, University Walk, Bristol, BS8 1TD, United Kingdom.
Sergey KasparovSchool of Physiology and Pharmacology, University of Bristol, University Walk, Bristol, BS8 1TD, United Kingdom.
Alexander V GourineCentre for Cardiovascular and Metabolic Neuroscience, Department of Neuroscience, Physiology, and Pharmacology, University College London, Gower Street, London, WC1E 6BT, United Kingdom.
Andrey Y AbramovDepartment of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, WC1N 3BG, United Kingdom.
University College London · GBImmanuel Kant Baltic Federal University · RUNational Hospital for Neurology and Neurosurgery · GBUniversity of Bristol · GB

Funding

Biotechnology and Biological Sciences Research Council BBSRC BB/L019396/1Medical Research Council MR/L020661/1Wellcome Trust 095064Wellcome Trust 200893Wellcome Trust 200893/Z/16/Z
6 · The paper itself

Abstract

Inorganic polyphosphate (polyP) is present in every cell and is highly conserved from primeval times. In the mammalian cells, polyP plays multiple roles including control of cell bioenergetics and signal transduction. In the brain, polyP mediates signaling between astrocytes via activation of purinergic receptors, however, the mechanisms of polyP release remain unknown. Here we report identification of polyP-containing vesicles in cortical astrocytes and the main triggers that evoke vesicular polyP release. In cultured astrocytes, polyP was localized predominantly within the intracellular vesicular compartments which express vesicular nucleotide transporter VNUT (putative ATP-containing vesicles), but not within the compartments expressing vesicular glutamate transporter 2 (VGLUT2). The number of lysosomes which contain polyP was dependent on the conditions of astrocytes. Release of polyP from a proportion of lysosomes could be induced by calcium ionophores. In contrast, polyP release from the VNUT-containing vesicles could be triggered by various physiological stimuli, such as pH changes, polyP induced polyP release and other stimuli which increase [Ca

Indexed as

Adenosine TriphosphateAnimalsAstrocytesCalciumCells, CulturedCerebral CortexExocytosisHydrogen-Ion ConcentrationIntracellular SpaceLeucine-Rich Repeat Serine-Threonine Protein Kinase-2LysosomesMice, Inbred C57BLMice, KnockoutMitochondriaPolyphosphatesRats, Sprague-DawleyAdenosine TriphosphateCalciumLeucine-Rich Repeat Serine-Threonine Protein Kinase-2Lrrk2 protein, mousePolyphosphatesVesicular Glutamate Transport Protein 2astrocytesinorganic polyphosphatelysosomesmitochondriaVNUT

Identifiers

PMID30260496
PMCPMC6282517
OpenAlexW2890877090

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.