Viability of human composite tissue model for experimental study of burns

Discov Med. 2016 Aug;22(119):19-28.

Abstract

Experimental studies of burns are primarily performed with animal models that have important anatomical and physiological differences relative to human systems. The aim of this study was to develop a human experimental burn model using composite tissue obtained from bariatric surgery. We established a new protocol to maintain viable sections of human cutaneous and subcutaneous (sub/cutaneous) tissue in vitro. Under the conditions selected, multiparametric flow cytometry and histological analysis confirmed the viability and integrity of the human sub/cutaneous tissue for at least 5 days. Furthermore, we utilized a precision McKenna burner to inflict burns on the human tissue model under well-defined thermal conditions in vitro. Our data showed a localized, temporally restricted polarization of the resident macrophages in the subcutaneous human tissue in response to specific thermal forces. Therefore, our model provides a useful alternative to animal studies for further detailed investigations of human responses to injuries and treatments.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Burns / metabolism*
  • Burns / pathology
  • Female
  • Flow Cytometry
  • Humans
  • Immunohistochemistry
  • In Vitro Techniques
  • Macrophages / metabolism
  • Male
  • Middle Aged
  • Models, Theoretical
  • Young Adult