Evidence map›Paper›PMID 25449921›Full record

ArticleActa biomaterialia2015

Localized delivery of dexamethasone-21-phosphate via microdialysis implants in rat induces M(GC) macrophage polarization and alters CCL2 concentrations.

Geoffrey D Keeler, Jeannine M Durdik, Julie A Stenken

Open access · greenAbstract read
In one paragraph

Article in Acta biomaterialia, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 22% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Dexamethasone-Enhanced Microdialysis and Penetration Injury.Frontiers in bioengineering and biotechnology · 2020
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Drug delivery strategies to control macrophages for tissue repair and regeneration.Experimental biology and medicine (Maywood, N.J.) · 2016
    Review
  13. Article
  14. 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.

Geoffrey D KeelerCell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA; Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA.
Jeannine M DurdikCell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA; Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
Julie A StenkenCell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA; Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA. Electronic address: jstenken@uark.edu.
University of Arkansas at Fayetteville · US

Funding

Modulating and Monitoring the Foreign Body Response to ImplantsR01EB014404 · NIBIB · UNIVERSITY OF ARKANSAS AT FAYETTEVILLE · PI STENKEN, JULIE A · 2011 to 2014
$1.3M
NIBIB NIH HHS EB 014404NIBIB NIH HHS R01 EB014404
6 · The paper itself

Abstract

Microdialysis sampling probes were implanted into the subcutaneous space on the dorsal side of male Sprague Dawley rats to locally deliver dexamethasone-21-phosphate (Dex) with the aim of altering in vivo macrophage polarization. Macrophage polarization is of significant interest in the field of biomaterials since wound-healing macrophages are a possible means to extend implant life as well as improve tissue remodeling to an implant. Quantitative analysis of CCL2 in collected dialysates, gene expression and immunohistochemistry performed on the tissue surrounding the microdialysis implant were used to evaluate if Dex polarized macrophages. Dex infusion down-regulated IL-6 and CCL2 gene expression and decreased CCL2 concentrations in dialysates collected at the implant site. Dex appeared to have no significant effect on the gene regulation of CD163, a commonly used M2c macrophage surface marker; Arg2; and iNOS2. However, Dex infusion was effective at increasing the number of CD163(+) cells surrounding the implanted microdialysis probe. This work demonstrates the use of microdialysis sampling to deliver agents such as Dex to alter macrophage polarization in vivo while allowing the ability to collect cytokines in the surrounding microenvironment.

Indexed as

MicrodialysisAnimalsChemokine CCL2DexamethasoneMacrophagesPolymerase Chain ReactionRatsCcl2 protein, ratChemokine CCL2Dexamethasonedexamethasone 21-phosphateCCL2 (MCP-1, monocyte chemotactic protein-1)DexamethasoneMacrophage polarizationqRT-PCRRat

Identifiers

PMID25449921
PMCPMC4717843
OpenAlexW2061842308

What OpenQuestion holds

Textmetadata
LicenceTDM
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.