Evidence map›Paper›PMID 9281578›Full record

ArticleThe Journal of cell biology1997

Dynamics of ATP-induced calcium signaling in single mouse thymocytes.

P E Ross, G R Ehring, M D Cahalan

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1997. 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
2.2field-weighted citation impact, top 13% 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, 46 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Ion channels in innate and adaptive immunity.Annual review of immunology · 2015
    Review
  5. Purinergic signalling and immune cells.Purinergic signalling · 2014
    Review
  6. Article
  7. Purinergic signalling in endocrine organs.Purinergic signalling · 2014
    Review
  8. Article
  9. Article
  10. Immunodeficiency due to defects in store-operated calcium entry.Annals of the New York Academy of Sciences · 2011
    Review
  11. Measuring enzyme activity in single cells.Trends in biotechnology · 2011
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. 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

3 authors at 1 institution in 1 country.

P E RossDepartment of Physiology and Biophysics, University of California at Irvine, Irvine, California 92697, USA.
G R Ehring
M D Cahalan
University of California, Irvine · US

Funding

Molecular Mechanisms of lon Channels in T LymphocytesR01NS014609 · NINDS · UNIVERSITY OF CALIFORNIA-IRVINE · PI CAHALAN, MICHAEL D · 1985 to 2022
$7.0M
THE ROLE OF ION CHANNELS IN LYMPHOCYTE ACTIVATIONR01GM041514 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI CAHALAN, MICHAEL D · 1988 to 2013
$5.2M
Molecular Mechanisms of Ion Channels in T LymphocytesR37NS014609 · NINDS · UNIVERSITY OF CALIFORNIA-IRVINE · PI CAHALAN, MICHAEL D · 2006 to 2012
$3.3M
Molecular Mechanisms of lon Channels in T LymphocytesR56NS014609 · NINDS · UNIVERSITY OF CALIFORNIA-IRVINE · PI CAHALAN, MICHAEL D · 2018 to 2018
$514k
NIGMS NIH HHS GM41514NIGMS NIH HHS R01 GM041514NINDS NIH HHS NS14609NINDS NIH HHS R01 NS014609NINDS NIH HHS R37 NS014609NINDS NIH HHS R56 NS014609
6 · The paper itself

Abstract

Extracellular ATP (ATPo) elicits a robust change in the concentration of intracellular Ca2+ ([Ca2+]i) in fura-2-loaded mouse thymocytes. Most thymocytes (60%) exposed to ATPo exhibited a biphasic rise in [Ca2+]i; [Ca2+]i rose slowly at first to a mean value of 260 nM after 163 s and then increased rapidly to a peak level of 735 nM. In many cells, a declining plateau, which lasted for more than 10 min, followed the crest in [Ca2+]i. Experiments performed in the absence of extracellular [Ca2+]o abolished the rise in thymocyte [Ca2+]i, indicating that Ca2+ influx, rather than the release of stored Ca2+, is stimulated by ATPo. ATPo- mediated Ca2+ influx was potentiated as the [Mg2+]o was reduced, confirming that ATP4- is the active agonist form. In the absence of Mg2+o, 3'-O-(4-benzoyl)benzoyl-ATP (BzATP) proved to be the most effective agonist of those tested. The rank order of potency for adenine nucleotides was BzATP4->ATP4->MgATP2->ADP3-, suggesting purinoreceptors of the P2X7/P2Z class mediate the ATPo response. Phenotyping experiments illustrate that both immature (CD4-CD8-, CD4+CD8+) and mature (CD4+CD8-, CD4-CD8+) thymocyte populations respond to ATP. Further separation of the double-positive population by size revealed that the ATPo-mediated [Ca2+]i response was much more pronounced in large (actively dividing) than in small (terminally differentiated) CD4+CD8+ thymocytes. We conclude that thymocytes vary in sensitivity to ATPo depending upon the degree of maturation and suggest that ATPo may be involved in processes that control cellular differentiation within the thymus.

Indexed as

Signal TransductionAdenosine TriphosphateAnimalsCalciumCD4 AntigensCD8 AntigensCells, CulturedFemaleImmunophenotypingKineticsMagnesiumMiceMice, Inbred BALB CT-Lymphocytes3'-O-(4-benzoyl)benzoyladenosine 5'-triphosphateAdenosine TriphosphateCalciumCD4 AntigensCD8 AntigensMagnesium

Identifiers

PMID9281578
PMCPMC2136769
OpenAlexW2053903353

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.