Evidence map›Paper›PMID 34070125›Full record

ArticleInternational journal of molecular sciences2021

Substance P Serves as a Balanced Agonist for MRGPRX2 and a Single Tyrosine Residue Is Required for β-Arrestin Recruitment and Receptor Internalization.

Chalatip Chompunud Na Ayudhya, Aetas Amponnawarat, Hydar Ali

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.4field-weighted citation impact, top 10% 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

32 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
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  7. Modulation of Mast Cell Activation via MRGPRX2 by Natural Oat Extract.International journal of molecular sciences · 2025
    Article
  8. Review
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  10. Beyond the classic players: Mas-related G protein-coupled receptor member X2 role in pruritus and skin diseases.Journal of the European Academy of Dermatology and Venereology : JEADV · 2025
    Review
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  19. Article
  20. Mast Cells in Human Health and Diseases.International journal of molecular sciences · 2023
    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 3 institutions in 2 countries.

Chalatip Chompunud Na AyudhyaDepartment of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Aetas AmponnawaratDepartment of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Hydar AliDepartment of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.ORCID 0000-0001-9190-1960
Chiang Mai University · THNaresuan University · THUniversity of Pennsylvania · US

Funding

NIH HHS R01-AI124182NIH HHS R01-AI143185NIH HHS R01-AI149487
6 · The paper itself

Abstract

The neuropeptide substance P (SP) mediates neurogenic inflammation and pain and contributes to atopic dermatitis in mice through the activation of mast cells (MCs) via Mas-related G protein-coupled receptor (GPCR)-B2 (MrgprB2, human ortholog MRGPRX2). In addition to G proteins, certain MRGPRX2 agonists activate an additional signaling pathway that involves the recruitment of β-arrestins, which contributes to receptor internalization and desensitization (balanced agonists). We found that SP caused β-arrestin recruitment, MRGPRX2 internalization, and desensitization. These responses were independent of G proteins, indicating that SP serves as a balanced agonist for MRGPRX2. A tyrosine residue in the highly conserved NPxxY motif contributes to the activation and internalization of many GPCRs. We have previously shown that Tyr

Indexed as

Amino Acid SubstitutionAnimalsbeta-Arrestin 2beta-ArrestinsCell DegranulationCell LineFemaleHumansMaleMast CellsMiceMice, Inbred C57BLMice, KnockoutMutagenesis, Site-DirectedNerve Tissue ProteinsNeuroimmunomodulationArrb2 protein, mousebeta-Arrestin 2beta-ArrestinsMrgprb2 protein, mouseMRGPRX2 protein, humanNerve Tissue ProteinsReceptors, G-Protein-CoupledReceptors, NeuropeptideSubstance PTyrosineinternalizationmast cellsMrgprB2MRGPRX2signalingsubstance Ptyrosine

Identifiers

PMID34070125
PMCPMC8158387
OpenAlexW3161829548

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.