Evidence map›Paper›PMID 22952790›Full record

ArticlePloS one2012

KCa3.1 and TRPM7 channels at the uropod regulate migration of activated human T cells.

Zerrin Kuras, Yeo-Heung Yun, Ameet A Chimote, Lisa Neumeier, Laura Conforti

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
5.5field-weighted citation impact, top 4% 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

55 citing papers in PubMed, 95 citations in OpenAlex.

  1. KArchiv der Pharmazie · 2026
    Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. SubvertingBiology · 2024
    Review
  7. Review
  8. The Role of TRPM7 in Oncogenesis.International journal of molecular sciences · 2024
    Review
  9. Inhibitory effect of adenosine on adaptive antitumor immunity and intervention strategies.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2023
    Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Intermediate conductance CaFrontiers in insect science · 2022
    Article
  16. Article
  17. Targeted knockdown of the adenosine AMolecular therapy. Methods & clinical development · 2021
    Article
  18. Review
  19. Article
  20. PD1 blockade enhances KJournal for immunotherapy of cancer · 2020
    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

5 authors at 2 institutions in 1 country.

Zerrin KurasDepartment of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, United States of America.
Yeo-Heung Yun
Ameet A Chimote
Lisa Neumeier
Laura Conforti
University of Cincinnati · USNorth Carolina Agricultural and Technical State University · US

Funding

Hypoxia and Potassium Channel Activity in T LymphocytesR01CA095286 · NCI · UNIVERSITY OF CINCINNATI · PI CONFORTI, LAURA · 2003 to 2019
$4.1M
Potassium Channel Trafficking in Geometrically Patterned Immunological SynapsesR21AI083076 · NIAID · UNIVERSITY OF CINCINNATI · PI CONFORTI, LAURA · 2009 to 2010
$427k
NCI NIH HHS 2R01CA095286NCI NIH HHS R01 CA095286NIAID NIH HHS 1R21AI083076NIAID NIH HHS R21 AI083076
6 · The paper itself

Abstract

The migration of T lymphocytes is an essential part of the adaptive immune response as T cells circulate around the body to carry out immune surveillance. During the migration process T cells polarize, forming a leading edge at the cell front and a uropod at the cell rear. Our interest was in studying the involvement of ion channels in the migration of activated human T lymphocytes as they modulate intracellular Ca(2+) levels. Ca(2+) is a key regulator of cellular motility. To this purpose, we created protein surfaces made of the bio-polymer PNMP and coated with ICAM-1, ligand of LFA-1. The LFA-1 and ICAM-1 interaction facilitates T cell movement from blood into tissues and it is critical in immune surveillance and inflammation. Activated human T lymphocytes polarized and migrated on ICAM-1 surfaces by random walk with a mean velocity of ∼6 µm/min. Confocal microscopy indicated that Kv1.3, CRAC, and TRPM4 channels positioned in the leading-edge, whereas KCa3.1 and TRPM7 channels accumulated in the uropod. The localization of KCa3.1 and TRPM7 at the uropod was associated with oscillations in intracellular Ca(2+) levels that we measured in this cell compartment. Further studies with blockers against Kv1.3 (ShK), KCa3.1 (TRAM-34), CRAC (SKF-96365), TRPM7 (2-APB), and TRPM4 (glibenclamide) indicated that blockade of KCa3.1 and TRPM7, and not Kv1.3, CRAC or TRPM4, inhibits the T cell migration. The involvement of TRPM7 in cell migration was confirmed with siRNAs against TRPM7. Downregulation of TRPM7 significantly reduced the number of migrating T cells and the mean velocity of the migrating T cells. These results indicate that KCa3.1 and TRPM7 selectively localize at the uropod of migrating T lymphocytes and are key components of the T cell migration machinery.

Indexed as

Cell MovementCalciumCalcium ChannelsCell Surface ExtensionsHumansIntercellular Adhesion Molecule-1Intermediate-Conductance Calcium-Activated Potassium ChannelsIntracellular SpaceMaleORAI1 ProteinProtein Serine-Threonine KinasesProtein TransportT-LymphocytesTRPM Cation ChannelsCalciumCalcium ChannelsIntercellular Adhesion Molecule-1Intermediate-Conductance Calcium-Activated Potassium ChannelsKCNN4 protein, humanORAI1 ProteinORAI1 protein, humanProtein Serine-Threonine KinasesTRPM7 protein, humanTRPM Cation Channels

Identifiers

PMID22952790
PMCPMC3428288
OpenAlexW2077489086

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.