Volume 27, Issue 6 (11-2023)                   IBJ 2023, 27(6): 340-348 | Back to browse issues page

PMID: 37950395

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Background: The aim of the present study was to evaluate alterations in the vegf gene expression as an angiogenic factor in mouse embryo fibroblasts seeded on the decellularized liver fragments.
Methods: Liver tissue samples (n = 10) collected from adult male mice were randomly divided into decellularized and native control groups. Tissues were decellularized by treating with 1% Triton X-100 and 0.1% SDS for 24 hours and assessed by H&E staining and scanning electron microscopy (SEM). Then DNA content analysis and toxicity tests were performed. By centrifugation, DiI-labeled mouse embryo fibroblasts were seeded on each scaffold and cultured for one week. The recellularized scaffolds were studied by H&E staining, SEM, and laser scanning confocal microscopy (LSCM). After RNA extraction and cDNA synthesis, the expression of the vegf gene in these samples was investigated using real-time RT-PCR.
Results: Our observations showed that the decellularized tissues had morphology and porous structure similar to the control group, and their DNA content significantly reduced (p < 0.05) and reached to 4.12% of the control group. The MTT test indicated no significant cellular toxicity for the decellularized scaffolds. Light microscopy, SEM, and LSCM observations confirmed the attachment and penetration of embryonic fibroblast cells on the surface and into different depths of the scaffolds. There was no statistically significant difference in terms of vegf gene expression in the cultured cells in the presence and absence of a scaffold.
Conclusion: The reconstructed scaffold had no effect on vegf gene expression. Decellularized mouse liver tissue recellularized by embryonic fibroblasts could have an application in regenerative medicine.

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