Evidence map›Paper›PMID 29277899›Full record

ArticleBritish journal of pharmacology2018

Proton-independent activation of acid-sensing ion channel 3 by an alkaloid, lindoldhamine, from Laurus nobilis.

Dmitry I Osmakov, Sergey G Koshelev, Yaroslav A Andreev, Maxim A Dubinnyi, Vadim S Kublitski, Roman G Efremov, Alexander I Sobolevsky, Sergey A Kozlov

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

12 citing papers in PubMed, 15 citations in OpenAlex.

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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

8 authors at 3 institutions in 2 countries.

Dmitry I OsmakovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.ORCID 0000-0001-6588-5012
Sergey G KoshelevShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
Yaroslav A AndreevShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
Maxim A DubinnyiShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
Vadim S KublitskiShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
Roman G EfremovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
Alexander I SobolevskyDepartment of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA.
Sergey A KozlovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
Institute of Bioorganic Chemistry · RUSechenov University · RUInstitute of Molecular Biology and Biophysics · RU

Funding

Structure and Function of AMPA subtype ionotropic glutamate receptorsR01NS083660 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI KURNIKOVA, MARIA G, SOBOLEVSKY, ALEXANDER · 2013 to 2022
$4.3M
Structure and function of Transient Receptor Potential ChannelsR01CA206573 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Alexander Sobolevsky · 2017 to 2026
$3.8M
NCI NIH HHS R01 CA206573NINDS NIH HHS R01 NS083660
6 · The paper itself

Abstract

background and purposeAcid-sensing ion channels (ASICs) play an important role in synaptic plasticity and learning, as well as in nociception and mechanosensation. ASICs are involved in pain and in neurological and psychiatric diseases, but their therapeutic potential is limited by the lack of ligands activating them at physiological pH. EXPERIMENTAL APPROACH: We extracted, purified and determined the structure of a bisbenzylisoquinoline alkaloid, lindoldhamine, (LIN) from laurel leaves. Its effect on ASIC3 channels were characterized, using two-electrode voltage-clamp electrophysiological recordings from Xenopus laevis oocytes. KEY

resultsAt pH 7.4 or higher, LIN activated a sustained, proton-independent, current through rat and human ASIC3 channels, but not rat ASIC1a or ASIC2a channels. LIN also potentiated proton-induced transient currents and promoted recovery from desensitization in human, but not rat, ASIC3 channels. CONCLUSIONS AND IMPLICATIONS: We describe a novel ASIC subtype-specific agonist LIN, which induced proton-independent activation of human and rat ASIC3 channels at physiological pH. LIN also acts as a positive allosteric modulator of human, but not rat, ASIC3 channels. This unique, species-selective, ligand of ASIC3, opens new avenues in studies of ASIC structure and function, as well as providing new approaches to drug design.

Indexed as

Acid Sensing Ion ChannelsAlkaloidsAllosteric RegulationAnimalsFemaleHumansHydrogen-Ion ConcentrationLaurusOocytesPatch-Clamp TechniquesPlant LeavesProtonsRatsSpecies SpecificityXenopus laevisAcid Sensing Ion ChannelsAlkaloidsASIC3 protein, humanASIC3 protein, ratProtons

Identifiers

PMID29277899
PMCPMC5825300
OpenAlexW2779677248

What OpenQuestion holds

Textmetadata
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Registered trials

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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.