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Design and characterization of a chitosan physical gel promoting wound healing in mice

  • Laura Mayol
  • Daniela De Stefano
  • Virginia Campani
  • Francesca De Falco
  • Eleonora Ferrari
  • Claudia Cencetti
  • Pietro Matricardi
  • Luigi Maiuri
  • Rosa Carnuccio
  • Angela Gallo
  • Maria Chiara Maiuri
  • Giuseppe De RosaEmail author
Article

Abstract

In this study, a sterile and biocompatible chitosan (CHI) gel for wound healing applications was formulated. CHI powder was treated in autoclave (ttCHI) to prepare sterile formulations. The heat treatment modified the CHI molecular weight, as evidenced by GPC analysis, and its physical–chemical features. Differential scanning calorimetry studies indicated that the macromolecules, before and after thermal treatment, differ in the strength of water-polymer interaction leading to different viscoelastic and flow properties. Thermally treated CHI exhibited the following effects: (i) increased the proliferation and migration of human foreskin foetal fibroblasts at 24 h; (ii) accelerated wound healing (measured as area of lesion) at 3 and 10 days in an in vivo model of pressure ulcers. These effects were linked to the increase of the hydroxyproline and haemoglobin content as well as Wnt protein expression. Moreover, we found a reduction of myeloperoxidase activity and TNF-α mRNA expression. These observations suggest the potential of this novel CHI gel in wound healing and other therapeutic applications.

Keywords

Chitosan Wound Healing Pressure Ulcer HTAB Differential Scanning Calorimeter Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was supported by Italian “Ministero della Salute” (Grant: Progetto Giovani Ricercatori – annualità 2007). The authors thank Dr. Manuela Gavina for her technical support.

Conflict of interest

The authors declare that there are no conflicts of interest.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Laura Mayol
    • 1
  • Daniela De Stefano
    • 1
  • Virginia Campani
    • 1
  • Francesca De Falco
    • 1
  • Eleonora Ferrari
    • 1
  • Claudia Cencetti
    • 2
  • Pietro Matricardi
    • 2
  • Luigi Maiuri
    • 3
  • Rosa Carnuccio
    • 1
  • Angela Gallo
    • 4
  • Maria Chiara Maiuri
    • 1
    • 5
  • Giuseppe De Rosa
    • 1
    Email author
  1. 1.Dipartimento di FarmaciaUniversità degli Studi di Napoli Federico IINaplesItaly
  2. 2.Department of Drug Chemistry and Technologies“Sapienza” University of RomeRomeItaly
  3. 3.Institute of PediatricsUniversity of FoggiaFoggiaItaly
  4. 4.Farmacia OspedalieraAzienda Ospedaliera di Rilievo Nazionale “Antonio Cardarelli”NaplesItaly
  5. 5.INSERM U848, Institut G. Roussy, 39 rue C. DesmoulinsVillejuifFrance

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