Evidence map›Paper›PMID 36912700›Full record

ArticleThe Journal of general physiology2023

Blockade of TRPV channels by intracellular spermine.

Grigory Maksaev, Peng Yuan, Colin G Nichols

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of general physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Transient Receptor Potential (TRP) Channels in Cochlear Function: Looking Beyond Mechanotransduction.Journal of the Association for Research in Otolaryngology : JARO · 2024
    Article
  7. Article
  8. The role of polyamine metabolism in cellular function and physiology.American journal of physiology. Cell physiology · 2024
    Review
  9. Spermidine Synthase Localization in Retinal Layers: Early Age Changes.International journal of molecular sciences · 2024
    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.

Grigory MaksaevDepartment of Cell Biology and Physiology, Center for Investigation of Membrane Excitability Diseases, Washington University School of Medicine , St. Louis, MO, USA.ORCID 0000-0001-6242-1634
Peng YuanDepartment of Cell Biology and Physiology, Center for Investigation of Membrane Excitability Diseases, Washington University School of Medicine , St. Louis, MO, USA.
Colin G NicholsDepartment of Cell Biology and Physiology, Center for Investigation of Membrane Excitability Diseases, Washington University School of Medicine , St. Louis, MO, USA.ORCID 0000-0002-4929-2134
Washington University in St. Louis · US

Funding

Role of vascular KATP channels in Alzheimer’s neurodegeneration and dementiaR35HL140024 · NHLBI · WASHINGTON UNIVERSITY · PI NICHOLS, COLIN G · 2018 to 2023
$5.9M
STRUCTURE AND MECHANISM OF A POLYMODAL TRP ION CHANNELR01NS099341 · NINDS · WASHINGTON UNIVERSITY · PI YUAN, PENG · 2017 to 2021
$1.7M
NHLBI NIH HHS R35 HL140024NIH HHS R01 NS099341NINDS NIH HHS R01 NS099341
6 · The paper itself

Abstract

The Vanilloid thermoTRP (TRPV1-4) subfamily of TRP channels are involved in thermoregulation, osmoregulation, itch and pain perception, (neuro)inflammation and immune response, and tight control of channel activity is required for perception of noxious stimuli and pain. Here we report voltage-dependent modulation of each of human TRPV1, 3, and 4 by the endogenous intracellular polyamine spermine. As in inward rectifier K channels, currents are blocked in a strongly voltage-dependent manner, but, as in cyclic nucleotide-gated channels, the blockade is substantially reduced at more positive voltages, with maximal blockade in the vicinity of zero voltage. A kinetic model of inhibition suggests two independent spermine binding sites with different affinities as well as different degrees of polyamine permeability in TRPV1, 3, and 4. Given that block and relief occur over the physiological voltage range of action potentials, voltage-dependent polyamine block may be a potent modulator of TRPV-dependent excitability in multiple cell types.

Indexed as

Potassium Channels, Inwardly RectifyingSpermineAction PotentialsHumansPolyaminesPolyaminesPotassium Channels, Inwardly RectifyingSpermine

Identifiers

PMID36912700
PMCPMC10038874
OpenAlexW4324018421

What Socratic 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 Socratic graph.