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Porous Curdlan-Whey Protein Isolate Scaffolds Obtained by Combined Method for Cartilage Tissue Engineering

Aleksandra Hnydka1,2, Julia Higuchi3, Agnieszka Grzelak1

  • 1Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland.

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Summary

Researchers developed porous curdlan-whey protein isolate (WPI) scaffolds for cartilage regeneration. The Cur_WPI_7.5% scaffold demonstrated superior cytocompatibility, promoting osteoblast viability and proliferation for potential tissue engineering applications.

Keywords:
WPIcartilage defectscurdlanporous scaffold

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Biotechnology

Background:

  • Cartilage defects pose significant challenges in regenerative medicine.
  • Developing effective biomaterial scaffolds is crucial for cartilage repair.
  • Curdlan and whey protein isolate offer promising biocompatible components.

Purpose of the Study:

  • To fabricate and characterize novel porous curdlan-whey protein isolate (Cur-WPI) biomaterials.
  • To evaluate the potential of these Cur-WPI composites as scaffolds for cartilage tissue regeneration.
  • To assess the cytocompatibility and cellular response of osteoblasts on the developed scaffolds.

Main Methods:

  • A combined fabrication technique involving ion-exchange dialysis, porogen leaching, freezing, and freeze-drying was utilized.
  • Two scaffold types with varying protein content (5 wt.% and 7.5 wt.%) were prepared.
  • Microstructural analysis (SEM-EDS), physicochemical property testing (wettability, absorption), and in vitro cell culture studies (osteoblast viability and proliferation) were performed.

Main Results:

  • Both Cur-WPI scaffolds exhibited porous, rough, and hydrophilic structures with high liquid absorption capacity.
  • The Cur_WPI_7.5% scaffold demonstrated enhanced cytocompatibility compared to the 5% variant.
  • Significant promotion of osteoblast viability and proliferation was observed on the Cur_WPI_7.5% scaffold in vitro.

Conclusions:

  • The developed Cur-WPI biomaterials possess favorable structural and physicochemical properties for cartilage tissue engineering.
  • The Cur_WPI_7.5% scaffold shows particular promise due to its superior cytocompatibility and ability to support osteoblast growth.
  • These findings highlight the potential of Cur-WPI composites as advanced scaffolds for cartilage regeneration applications.