Evidence map›Paper›PMID 27760399›Full record

ArticleBiomaterials2017

Shifts in macrophage phenotype at the biomaterial interface via IL-4 eluting coatings are associated with improved implant integration.

Daniel Hachim, Samuel T LoPresti, Cecelia C Yates, Bryan N Brown

Abstract read
In one paragraph

Article in Biomaterials, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

97 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  15. Engineering Efferocytosis for Bone Regeneration.Macromolecular bioscience · 2025
    Review
  16. Article
  17. Review
  18. Research Progress on Biomaterials with Immunomodulatory Effects in Bone Regeneration.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  19. Affinity-based controlled release of interleukin-4 from scaffolds via biotin-streptavidin interactions for immunomodulation.Journal of controlled release : official journal of the Controlled Release Society · 2025
    Article
  20. Article

37 more citing papers are in PubMed but not listed here.

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

4 authors.

Daniel HachimMcGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.
Samuel T LoPrestiMcGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.
Cecelia C YatesMcGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Health Promotion and Development, School of Nursing, University of Pittsburgh, 440 Victoria Building, 3500 Victoria Street, Pittsburgh, PA 15213, United States.
Bryan N BrownMcGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States; Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, 300 Halket Street, Pittsburgh, PA 15213, United States. Electronic address: brownb@upmc.edu.

Funding

Building Research Careers in Women's HealthK12HD043441 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI SADOVSKY, YOEL · 2002 to 2023
$10.1M
Cellular Approaches to Tissue Engineering/RegenerationT32EB001026 · NIBIB · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DUNCAN, ANDREW W, MONGA, SATDARSHAN SINGH · 2003 to 2024
$5.5M
Genomics of Variability in Progression and Severity of Skin FibrosisR01AR068317 · NIAMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YATES, CECELIA CHRISTINA · 2016 to 2018
$989k
Macrophage Phenotype as a Determinant of Outcome in Pelvic Organ Prolapse RepairR21GM107882 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BROWN, BRYAN NICKLAUS · 2013 to 2014
$387k
NIAMS NIH HHS R01 AR068317NIBIB NIH HHS T32 EB001026NICHD NIH HHS K12 HD043441NIGMS NIH HHS R21 GM107882
6 · The paper itself

Abstract

The present study tests the hypothesis that transient, early-stage shifts in macrophage polarization at the tissue-implant interface from a pro-inflammatory (M1) to an anti-inflammatory/regulatory (M2) phenotype mitigates the host inflammatory reaction against a non-degradable polypropylene mesh material and improves implant integration downstream. To address this hypothesis, a nanometer-thickness coating capable of releasing IL-4 (an M2 polarizing cytokine) from an implant surface at early stages of the host response has been developed. Results of XPS, ATR-FTIR and Alcian blue staining confirmed the presence of a uniform, conformal coating consisting of chitosan and dermatan sulfate. Immunolabeling showed uniform loading of IL-4 throughout the surface of the implant. ELISA assays revealed that the amount and release time of IL-4 from coated implants were tunable based upon the number of coating bilayers and that release followed a power law dependence profile. In-vitro macrophage culture assays showed that implants coated with IL-4 promoted polarization to an M2 phenotype, demonstrating maintenance of IL-4 bioactivity following processing and sterilization. Finally, in-vivo studies showed that mice with IL-4 coated implants had increased percentages of M2 macrophages and decreased percentages of M1 macrophages at the tissue-implant interface during early stages of the host response. These changes were correlated with diminished formation of fibrotic capsule surrounding the implant and improved tissue integration downstream. The results of this study demonstrate a versatile cytokine delivery system for shifting early-stage macrophage polarization at the tissue-implant interface of a non-degradable material and suggest that modulation of the innate immune reaction at early stages of the host response may represent a preferred strategy for promoting biomaterial integration and success.

Indexed as

Bone-Implant InterfaceProstheses and ImplantsAnimalsCell PolarityCells, CulturedCoated Materials, BiocompatibleDrug ImplantsFemaleInterleukin-4MacrophagesMaterials TestingMiceMice, Inbred C57BLCoated Materials, BiocompatibleDrug ImplantsInterleukin-4Foreign body reactionIL-4Layer by layer coatingMacrophagePolypropyleneSurgical mesh

Identifiers

PMID27760399
PMCPMC5121003

What OpenQuestion holds

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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.