Evidence map›Paper›PMID 33905960›Full record

ArticleBiomaterials2021

Effect of tissue microenvironment on fibrous capsule formation to biomaterial-coated implants.

Jamie L Hernandez, Jaehyung Park, Shan Yao, Anna K Blakney, Hienschi V Nguyen, Bob H Katz, Jeffrey T Jensen, Kim A Woodrow

Open access · hybridAbstract read
In one paragraph

Article in Biomaterials, 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
9.5field-weighted citation impact, top 1% 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, 69 citations in OpenAlex.

  1. Pathogens (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Tissue-bioelectronics interfaces.Chemical Society reviews · 2026
    Review
  4. Article
  5. Article
  6. Recent Advances in Silk Fibroin Derived fromJournal of functional biomaterials · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. [Research progress on enhancing osseointegration properties of polyetheretherketone implants through various modification methods].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2025
    Review
  13. Article
  14. Review
  15. Biological responses to biomaterials: a review.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2025
    Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

8 authors at 3 institutions in 2 countries.

Jamie L HernandezDepartment of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA.
Jaehyung ParkDepartment of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA.
Shan YaoOregon National Primate Research Center, Oregon Health & Science University, 505 NW 185th Ave, Beaverton, OR, 97006, USA.
Anna K BlakneyDepartment of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA.
Hienschi V NguyenDepartment of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA.
Bob H KatzContraMed LLC, 900 E. Hamilton Ave, Campbell, CA, 95008, USA.
Jeffrey T JensenOregon National Primate Research Center, Oregon Health & Science University, 505 NW 185th Ave, Beaverton, OR, 97006, USA.
Kim A WoodrowDepartment of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98105, USA. Electronic address: woodrow@uw.edu.
University of Washington · USOregon National Primate Research Center · USCampbell Collaboration · NO

Funding

Upgrade of confocal microscopy at the Oregon National Primate Research CenterP51OD011092 · OD · OREGON HEALTH & SCIENCE UNIVERSITY · PI Bonnie J. Nagel · 2012 to 2026
$203.9M
A low-profile copper intrauterine device that delivers long-acting contraception anR01AI150325 · NIAID · UNIVERSITY OF WASHINGTON · PI JENSEN, JEFFREY T., WOODROW, KIM A. · 2020 to 2024
$3.7M
Howard Hughes Medical InstituteNIAID NIH HHS R01 AI150325NIH HHS P51 OD011092
6 · The paper itself

Abstract

Within tissue exposed to the systemic immune system, lymphocytes and fibroblasts act against biomaterials via the development of a fibrous capsule, known as the foreign body reaction (FBR). Inspired by the natural tolerance that the uterine cavity has to foreign bodies, our study explores the role of microenvironment across classical (subcutaneous) and immune privileged (uterine) tissues in the development of the FBR. As a model biomaterial, we used electrospun fibers loaded with sclerosing agents to provoke scar tissue growth. Additionally, we integrated these materials onto an intrauterine device as a platform for intrauterine biomaterial studies. Polyester materials in vitro achieved drug release up to 10 days, greater pro-inflammatory and pro-healing cytokine expression, and the addition of gelatin enabled greater fibroblast attachment. We observed the materials that induced the greatest FBR in the mouse, had no effect when inserted at the utero-tubal junction of non-human primates. These results suggest that the FBR varies across different tissue microenvironments, and a dampened fibrotic response exists in the uterine cavity, possibly due to immune privilege. Further study of immune privileged tissue factors on biomaterials could broaden our understanding of the FBR and inform new methods for achieving biocompatibility in vivo.

Indexed as

Biocompatible MaterialsForeign-Body ReactionAnimalsFibrosisMiceProstheses and ImplantsSubcutaneous TissueBiocompatible MaterialsElectrospun fibersFemale reproductive tractForeign body reactionImmune privilegeIntrauterine deviceSclerosing agents

Identifiers

PMID33905960
PMCPMC8135119
OpenAlexW3119859966

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.