A potential platform for developing 3D tubular scaffolds for paediatric organ development

Achala de Mel, Trixie Yap, Giorgio Cittadella, Luke Richard Hale, Panagiotis Maghsoudlou, Paolo de Coppi, Martin A. Birchall, Alexander M. Seifalian

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Children suffer from damaged or loss of hollow organs i.e. trachea, oesophagus or arteries from birth defects or diseases. Generally these organs possess an outer matrix consisting of collagen, elastin, and cells such as smooth muscle cells (SMC) and a luminal layer consisting of endothelial or epithelial cells, whilst presenting a barrier to luminal content. Tissue engineering research enables the construction of such organs and this study explores this possibility with a bioabsorbable nanocomposite biomaterial, polyhedral oligomeric silsesquioxane poly(ε-caprolactone) urea urethane (POSS–PCL).Our established methods of tubular graft extrusion were modified using a porogen-incorporated POSS–PCL and a new lamination method was explored. Porogen (40, 60 or 105 µm) were introduced to POSS–PCL, which were fabricated into a bilayered, dual topography matching the exterior and luminal interior of tubular organs. POSS–PCL with different amounts of porogen were tested for their suitability as a SMC layer by measuring optimal interactions with human adipose derived stem cells. Angiogenesis potential was tested with the chorioallantoic membrane assay. Tensile strength and burst pressures of bilayared tubular grafts were determined. Scaffolds made with 40 µm porogen demonstrated optimal adipose derived stem cell integration and the scaffolds were able to accommodate angiogenesis. Mechanical properties of the grafts confirmed their potential to match the relevant physiological and biophysical parameters. This study presents a platform for the development of hollow organs for transplantation based on POSS–PCL. These bilayered-tubular structures can be tailor-made for cellular integration and match physico-mechanical properties of physiological systems of interest. More specific luminal cell integration and sources of SMC for the external layer could be further explored.

Original languageEnglish (US)
JournalJournal of Materials Science: Materials in Medicine
Volume26
Issue number3
DOIs
StatePublished - 2015
Externally publishedYes

Fingerprint

Pediatrics
Grafts
Scaffolds
Smooth Muscle Myocytes
Muscle
Stem cells
Transplants
Stem Cells
Cells
Elastin
Chorioallantoic Membrane
Nanocomposites
Mechanical properties
Engineering research
Tensile Strength
Urethane
Endothelial cells
Biocompatible Materials
Organ Transplantation
Tissue Engineering

ASJC Scopus subject areas

  • Biophysics
  • Biomaterials
  • Bioengineering
  • Biomedical Engineering

Cite this

de Mel, A., Yap, T., Cittadella, G., Hale, L. R., Maghsoudlou, P., de Coppi, P., ... Seifalian, A. M. (2015). A potential platform for developing 3D tubular scaffolds for paediatric organ development. Journal of Materials Science: Materials in Medicine, 26(3). https://doi.org/10.1007/s10856-015-5477-4

A potential platform for developing 3D tubular scaffolds for paediatric organ development. / de Mel, Achala; Yap, Trixie; Cittadella, Giorgio; Hale, Luke Richard; Maghsoudlou, Panagiotis; de Coppi, Paolo; Birchall, Martin A.; Seifalian, Alexander M.

In: Journal of Materials Science: Materials in Medicine, Vol. 26, No. 3, 2015.

Research output: Contribution to journalArticle

de Mel, A, Yap, T, Cittadella, G, Hale, LR, Maghsoudlou, P, de Coppi, P, Birchall, MA & Seifalian, AM 2015, 'A potential platform for developing 3D tubular scaffolds for paediatric organ development', Journal of Materials Science: Materials in Medicine, vol. 26, no. 3. https://doi.org/10.1007/s10856-015-5477-4
de Mel, Achala ; Yap, Trixie ; Cittadella, Giorgio ; Hale, Luke Richard ; Maghsoudlou, Panagiotis ; de Coppi, Paolo ; Birchall, Martin A. ; Seifalian, Alexander M. / A potential platform for developing 3D tubular scaffolds for paediatric organ development. In: Journal of Materials Science: Materials in Medicine. 2015 ; Vol. 26, No. 3.
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