Format

Send to

Choose Destination
See comment in PubMed Commons below
Laryngoscope. 2013 Dec;123(12):3156-61. doi: 10.1002/lary.24173. Epub 2013 May 13.

Development of a porous poly(DL-lactic acid-co-glycolic acid)-based scaffold for mastoid air-cell regeneration.

Author information

1
Division of Drug Delivery and Tissue Engineering, University of Nottingham, University Park, Nottingham, United Kingdom.

Abstract

OBJECTIVES/HYPOTHESIS:

To develop a porous, biodegradable scaffold for mastoid air-cell regeneration.

STUDY DESIGN:

In vitro development of a temperature-sensitive poly(DL-lactic acid-co-glycolic acid)/poly(ethylene glycol) (PLGA/PEG) scaffold tailored for this application.

METHODS:

Human mastoid bone microstructure and porosity were investigated using micro-computed tomography. PLGA/PEG-alginate scaffolds were developed, and scaffold porosity was assessed. Human bone marrow mesenchymal stem cells (hBM-MSCs) were cultured on the scaffolds in vitro. Scaffolds were loaded with ciprofloxacin, and release of ciprofloxacin over time in vitro was assessed.

RESULTS:

Porosity of human mastoid bone was measured at 83% with an average pore size of 1.3 mm. PLGA/PEG-alginate scaffold porosity ranged from 43% to 78% depending on the alginate bead content. The hBM-MSCs proliferate on the scaffolds in vitro, and release of ciprofloxacin from the scaffolds was demonstrated over 7 to 10 weeks.

CONCLUSIONS:

The PLGA/PEG-alginate scaffolds developed in this study demonstrate similar structural features to human mastoid bone, support cell growth, and display sustained antibiotic release. These scaffolds may be of potential clinical use in mastoid air-cell regeneration. Further in vivo studies to assess the suitability of PLGA/PEG-alginate scaffolds for this application are required.

KEYWORDS:

Scaffold; alginate; ciprofloxacin; mastoid; poly(DL-lactic acid-co-glycolic acid)

PMID:
23670365
PMCID:
PMC4501022
DOI:
10.1002/lary.24173
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley Icon for PubMed Central
    Loading ...
    Support Center