Engineering of vascularized adipose constructs

Paul S. Wiggenhauser, Daniel F. Müller, Ferry P. W. Melchels, José T. Egaña, Katharina Storck, Helena Mayer, Peter Leuthner, Daniel Skodacek, Ursula Hopfner, Hans G. Machens, Rainer Staudenmaier, Jan T. Schantz

Research output: Contribution to journalArticle

34 Citations (Scopus)
64 Downloads (Pure)

Abstract

Adipose tissue engineering offers a promising alternative to the current surgical techniques for the treatment of soft tissue defects. It is a challenge to find the appropriate scaffold that not only represents a suitable environment for cells but also allows fabrication of customized tissue constructs, particularly in breast surgery. We investigated two different scaffolds for their potential use in adipose tissue regeneration. Sponge-like polyurethane scaffolds were prepared by mold casting with methylal as foaming agent, whereas polycaprolactone scaffolds with highly regular stacked-fiber architecture were fabricated with fused deposition modeling. Both scaffold types were seeded with human adipose tissue-derived precursor cells, cultured and implanted in nude mice using a femoral arteriovenous flow-through vessel loop for angiogenesis. In vitro, cells attached to both scaffolds and differentiated into adipocytes. In vivo, angiogenesis and adipose tissue formation were observed throughout both constructs after 2 and 4 weeks, with angiogenesis being comparable in seeded and unseeded constructs. Fibrous tissue formation and adipogenesis were more pronounced on polyurethane foam scaffolds than on polycaprolactone prototyped scaffolds. In conclusion, both scaffold designs can be effectively used for adipose tissue engineering.

Original languageEnglish
Pages (from-to)747-757
Number of pages11
JournalCell and Tissue Research
Volume347
Issue number3
DOIs
Publication statusPublished - Mar 2012

Keywords

  • Adipose tissue engineering
  • Angiogenesis
  • Polycaprolactone
  • Polyurethane
  • Vessel loop

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Cell Biology
  • Histology

Fingerprint Dive into the research topics of 'Engineering of vascularized adipose constructs'. Together they form a unique fingerprint.

Cite this