Evaluation of a hydroxyapatite-crosslinked fish gelatin membranes

Autor: Reziwanguli Aili, Hidemi Nakata, Munemitsu Miyasaka, Shinji Kuroda, Yukihiko Tamura, Taishi Yokoi, Masakazu Kawashita, Yasushi Shimada, Shohei Kasugai, Eriko Marukawa
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Dental Sciences, Vol 19, Iss 2, Pp 900-908 (2024)
Druh dokumentu: article
ISSN: 1991-7902
DOI: 10.1016/j.jds.2023.07.016
Popis: Background/purpose: Porcine collagen is widely used in regenerative therapies to generate membranes for bone augmentation. However, porcine or bovine gelatin or collagen is often not appropriate for patients with creed and religious beliefs or for allergic reasons. In this study, we evaluated the potential of fish gelatin to generate membranes. Materials and methods: Fish gelatin and hydroxyapatite (HAp) were used at three different ratios (2:0, 2:1, 2:1.5, and 2:2) to prepare gelatin-hydroxyapatite (G-HAp) membranes via freeze-drying and heat-crosslinking. The surface morphology and cell attachment of G-HAp membranes were observed using scanning electron microscopy and confocal laser microscopy. G-HAp membrane was placed at the bottom of a well plate, and MC3T3-E1 cells were seeded on it. Cell viability and cytotoxicity were tested after 1 and 3 days of culture. Alkaline phosphatase (ALP) and alizarin red staining was performed at 10 and 21 days, respectively. Results: Viability of cells on G-HAp membrane with the gelatin:HAp ratio of 2:1.5 was significantly higher than that on membranes with other gelatin:HAp ratios. ALP and alizarin red staining showed that ALP-positive areas and calcium deposition were the highest on G-HAp membrane with the gelatin:HAp ratio of 2:1. These membranes showed negligible cytotoxicity. Conclusion: Fish-derived G-HAp membranes have the potential to promote osteogenic differentiation of MC3T3-E1 cells with negligible cytotoxicity.
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