BDNF improves the survival of mesenchymal stem cells cultured on pre-structured gelatin material containing strontium and calcium phosphates for bone regeneration

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Paul T. Itting - , University of Göttingen, Justus Liebig University Giessen (Author)
  • Benjamin Kruppke - , Chair of Biomaterials (Author)
  • Thomas Hanke - , Chair of Biomaterials (Author)
  • Vinu Vijayan - , Justus Liebig University Giessen (Author)
  • Christian Heiss - , Justus Liebig University Giessen, University Hospital Gießen and Marburg, Biruni Universitesi (Author)
  • Katrin Susanne Lips - , Justus Liebig University Giessen (Author)

Abstract

Introduction The treatment of osteoporotic fractures is still challenging and may be improved using materials for bone regeneration, such as pre-structured gelatin with calcium and strontium phosphates (PPGC+S), combined with brain-derived neurotrophic factor (BDNF). Recently, it was shown that PPGC+S stimulates bone formation, and BDNF improves cell survival. This study aimed to analyze the combined effect of PPGC+S and BDNF on the survival of mesenchymal stem cells (MSCs) from osteoporotic and non-osteoporotic female donors.Methods In our study, cells were seeded on PPGC+S plates with the following mineral composition of C+S of (a) 5:5, (b) 3:7, and (c) 0:10 (PPGS 0:10). Apoptosis and necrosis were measured after the addition of BDNF, followed by light microscopic analysis.Results The application of BDNF resulted in reduced necrosis and apoptosis in all biomaterials. The lowest level of necrosis was found in the PPGC+S 5:5 group. Apoptosis was most reduced in the PPGC+S 3:7 group, although the difference compared to PPGC+S 5:5 was not statistically significant. No differences were observed between MSCs from osteoporotic and non-osteoporotic donors.Conclusion Thus, PPGC+S 5:5 appears to be the most suitable composition for bone healing, especially when supplemented with BDNF.

Details

Original languageEnglish
Article number1596846
Number of pages14
JournalFrontiers in bioengineering and biotechnology
Volume13
Publication statusPublished - 7 Jul 2025
Peer-reviewedYes

External IDs

PubMed 40692615
Scopus 105011036843

Keywords

Keywords

  • Apoptosis, Bone regeneration material, Brain-derived neurotrophic factor, Cytotoxicity, Mesenchymal stem cells, Osteoporosis, Strontium