Evidence map›Paper›PMID 33827672›Full record

ArticleArthritis research & therapy2021

The role of intra-articular neuronal CCR2 receptors in knee joint pain associated with experimental osteoarthritis in mice.

Shingo Ishihara, Alia M Obeidat, David L Wokosin, Dongjun Ren, Richard J Miller, Anne-Marie Malfait, Rachel E Miller

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

39 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
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  3. [The role and mechanism of chemokine network in promoting osteoarthritis progression by regulating synovial macrophage heterogeneity].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
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  14. Clearing-enabled light sheet microscopy as a novel method for three-dimensional mapping of the sensory innervation of the mouse knee.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
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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

7 authors at 2 institutions in 1 country.

Shingo IshiharaDepartment of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1735 W Harrison St, Room 714, Chicago, IL, 60612, USA.
Alia M ObeidatDepartment of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1735 W Harrison St, Room 714, Chicago, IL, 60612, USA.
David L WokosinDepartment of Physiology, Northwestern University, Chicago, IL, 60611, USA.
Dongjun RenDepartment of Pharmacology, Northwestern University, Chicago, IL, 60611, USA.
Richard J MillerDepartment of Pharmacology, Northwestern University, Chicago, IL, 60611, USA.
Anne-Marie MalfaitDepartment of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1735 W Harrison St, Room 714, Chicago, IL, 60612, USA.
Rachel E MillerDepartment of Internal Medicine, Division of Rheumatology, Rush University Medical Center, 1735 W Harrison St, Room 714, Chicago, IL, 60612, USA. Rachel_Miller@rush.edu.ORCID 0000-0002-4486-5757
Northwestern University · USRush University Medical Center · US

Funding

Osteoarthritis Progression And Sensory Pathway AlterationsR01AR064251 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI MALFAIT, ANNE-MARIE, MILLER, RICHARD J · 2013 to 2025
$7.6M
Molecular Pathways of Pain Generation in OsteoarthritisR01AR060364 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI MALFAIT, ANNE-MARIE · 2011 to 2025
$6.0M
Pre and Post-Doctoral Training in Joint HealthT32AR073157 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI D Rick Sumner · 2019 to 2026
$2.3M
Biomechanical Pathways Associated with Osteoarthritis PainK01AR070328 · NIAMS · RUSH UNIVERSITY MEDICAL CENTER · PI MILLER, RACHEL ELIZABETH · 2016 to 2020
$547k
NIAMS NIH HHS K01 AR070328NIAMS NIH HHS K01AR070328NIAMS NIH HHS R01 AR060364NIAMS NIH HHS R01AR060364NIAMS NIH HHS R01 AR064251NIAMS NIH HHS R01AR064251NIAMS NIH HHS T32 AR073157
6 · The paper itself

Abstract

backgroundC-C chemokine receptor 2 (CCR2) signaling plays a key role in pain associated with experimental murine osteoarthritis (OA) after destabilization of the medial meniscus (DMM). Here, we aimed to assess if CCR2 expressed by intra-articular sensory neurons contributes to knee hyperalgesia in the early stages of the model.

methodsDMM surgery was performed in the right knee of 10-week-old male wild-type (WT), Ccr2 null, or Ccr2

resultsWT, but not Ccr2 null, mice displayed knee hyperalgesia 2-16 weeks after DMM. CCR2RA administered i.p. alleviated established hyperalgesia in WT mice 4 and 8 weeks after surgery. Intra-articular injection of CCL2 excited sensory neurons in the L4-DRG, as determined by in vivo calcium imaging; responses to CCL2 increased in mice 20 weeks after DMM. CCL2, but not vehicle, injected i.a. rapidly caused transient knee hyperalgesia in naïve WT, but not Ccr2 null, mice. Intra-articular CCR2RA injection also alleviated established hyperalgesia in WT mice 4 and 7 weeks after surgery. CCL2 protein was elevated in the knees of both WT and Ccr2 null mice 4 weeks after surgery. Co-expression of CCR2 and PGP9.5 as well as CCR2 and CGRP was observed in the lateral synovium of naïve mice; co-expression was also observed in the medial compartment of knees 8 weeks after DMM.

conclusionsThe findings suggest that CCL2-CCR2 signaling locally in the joint contributes to knee hyperalgesia in experimental OA, and it is in part mediated through direct stimulation of CCR2 expressed by intra-articular sensory afferents.

Indexed as

ArthralgiaOsteoarthritis, KneeReceptors, CCR2AnimalsDisease Models, AnimalKnee JointMaleMiceMice, Inbred C57BLPainSensory Receptor CellsCcr2 protein, mouseReceptors, CCR2Animal modelCCL2CCR2HyperalgesiaOsteoarthritisPainSensitization

Identifiers

PMID33827672
PMCPMC8025346
OpenAlexW3143824203

What OpenQuestion holds

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LicenceCC BY
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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.