Počet záznamů: 1  

Biomimetic biphasic curdlan-based scaffold for osteochondral tissue engineering applications Characterization and preliminary evaluation of mesenchymal stem cell response in vitro

  1. 1.
    0558807 - FGÚ 2023 RIV NL eng J - Článek v odborném periodiku
    Klimek, K. - Benko, A. - Vandrovcová, Marta - Trávníčková, Martina - Douglas, T. E. L. - Tarczynska, M. - Brož, Antonín - Gaweda, K. - Ginalska, G. - Bačáková, Lucie
    Biomimetic biphasic curdlan-based scaffold for osteochondral tissue engineering applications Characterization and preliminary evaluation of mesenchymal stem cell response in vitro.
    Biomaterials Advances. Roč. 135, April (2022), č. článku 212724. E-ISSN 2772-9508
    Grant CEP: GA MZd(CZ) NU20-08-00208; GA MŠk(CZ) LM2018129; GA MŠk(CZ) EF18_046/0016045
    Institucionální podpora: RVO:67985823
    Klíčová slova: beta-1,3-Glucan * biphasic scaffold * osteochondral defects * regenerative medicine * stem cells * tissue engineering
    Obor OECD: Biomaterials (as related to medical implants, devices, sensors)
    Způsob publikování: Omezený přístup
    https://doi.org/10.1016/j.bioadv.2022.212724

    Osteochondral defects remain a huge problem in medicine today. Biomimetic bi- or multi-phasic scaffolds constitute a very promising alternative to osteochondral autografts and allografts. In this study, a new curdlanbased scaffold was designed for osteochondral tissue engineering applications. To achieve biomimetic properties, it was enriched with a protein component ??? whey protein isolate as well as a ceramic ingredient ??? hydroxyapatite granules. The scaffold was fabricated via a simple and cost-efficient method, which represents a significant advantage. Importantly, this technique allowed generation of a scaffold with two distinct, but integrated phases. Scanning electron microcopy and optical profilometry observations demonstrated that phases of biomaterial possessed different structural properties. The top layer of the biomaterial (mimicking the cartilage) was smoother than the bottom one (mimicking the subchondral bone), which is beneficial from a biological point of view because unlike bone, cartilage is a smooth tissue. Moreover, mechanical testing showed that the top layer of the biomaterial had mechanical properties close to those of natural cartilage. Although the mechanical properties of the bottom layer of scaffold were lower than those of the subchondral bone, it was still higher than in many analogous systems. Most importantly, cell culture experiments indicated that the biomaterial possessed high cytocompatibility towards adipose tissue-derived mesenchymal stem cells and bone marrow-derived mesenchymal stem cells in vitro. Both phases of the scaffold enhanced cell adhesion, proliferation, and chondrogenic differentiation of stem cells (revealing its chondroinductive properties in vitro) as well as osteogenic differentiation of these cells (revealing its osteoinductive properties in vitro). Given all features of the novel curdlan-based scaffold, it is worth noting that it may be considered as promising candidate for osteochondral tissue engineering applications.
    Trvalý link: https://hdl.handle.net/11104/0332594

     
     
Počet záznamů: 1