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Characterization of the Foreign Body Response to Common Surgical Biomaterials in a Murine Model.

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Date
2017-11
Authors
Ibrahim, Mohamed
Bond, Jennifer
Medina, Manuel A
Chen, Lei
Quiles, Carlos
Kokosis, George
Bashirov, Latif
Klitzman, Bruce
Levinson, Howard
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Abstract
BACKGROUND:Implanted biomaterials are subject to a significant reaction from the host, known as the foreign body response (FBR). We quantified the FBR to five materials following subcutaneous implantation in mice. MATERIALS AND METHODS:Polyvinyl alcohol (PVA) and silicone sheets are considered highly biocompatible biomaterials and were cut into 8mm-diameter disks. Expanded PTFE (ePTFE)and polypropylene are also widely used biocompatible biomaterials and were cut into 2cm-long cylinders. Cotton was selected as a negative control material that would invoke an intense FBR, was cut into disks and implanted. The implants were inserted subcutaneously into female C57BL/6 mice. On post-implantation days 14, 30, 60, 90 and 180, implants were retrieved. Cellularity was assessed with DAPI stain, collagen with Masson's trichrome stain. mast cells with toluidine-blue, macrophages with F4/80 immunohistochemical-stain, and capsular thickness and foreign body giant cells with hematoxylin & eosin. RESULTS:DAPI revealed a significantly increased cellularity in both PVA andsilicone, and ePTFE had the lowest cell density. Silicone showed the lowest cellularity at d14 and d90 whereas ePTFE showed the lowest cellularity at days 30, 60, and 180. Masson's trichrome staining demonstrated no apparent difference in collagen. Toluidine blue showed no differences in mast cells. There were, however, fewer macrophages associated with ePTFE. On d14, PVA had highest number of macrophages, whereas polypropylene had the highest number at all time points after d14. Giant cells increased earlier and gradually decreased later. On d90, PVA exhibited a significantly increased number of giant cells compared to polypropylene and silicone. Silicone consistently formed the thinnest capsule throughout all time points. On d14, cotton had formed the thickest capsule. On d30 polypropylenehas formed thickest capsule and on days 60, 90 and 180, PVA had formed thickest capsule. CONCLUSION:These data reveal differences in capsule thickness and cellular response in an implant-related manor, indicating that fibrotic reactions to biomaterials are implant specific and should be carefully considered when performing studies on fibrosis when biomaterials are being used.
Type
Journal article
Subject
PVA
Prolene
biocompatibility
ePTFE
fibrosis
implants
polypropylene
Permalink
https://hdl.handle.net/10161/18478
Published Version (Please cite this version)
10.1007/s00238-017-1308-9
Publication Info
Ibrahim, Mohamed; Bond, Jennifer; Medina, Manuel A; Chen, Lei; Quiles, Carlos; Kokosis, George; ... Levinson, Howard (2017). Characterization of the Foreign Body Response to Common Surgical Biomaterials in a Murine Model. European journal of plastic surgery, 40(5). pp. 383-392. 10.1007/s00238-017-1308-9. Retrieved from https://hdl.handle.net/10161/18478.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Klitzman

Bruce Klitzman

Associate Professor Emeritus in Surgery
Our overriding interests are in the fields of tissue engineering, wound healing, biosensors, and long term improvement of medical device implantation. My basic research interests are in the area of physiological mechanisms of optimizing substrate transport to tissue. This broad topic covers studies on a whole animal, whole organ, hemorheological, microvascular, cellular, ultrastructural, and molecular level. The current projects include: 1) control of blood flow and flow distribu
Levinson

Howard Levinson

Associate Professor of Surgery
Fibrosis Wound Healing Cell Contractility Tissue RemodelingMedical device development including hernia mesh, tissue engineered skin and wound care technologies
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