Interleukin IL-1β stimulates revitalization of cartilage matrix in vitro with human nasal chondrocytes

Revitalization of decellularized or devitalized matrix scaffolds in tracheal tissue engineering typically involves seeding the autologous recipient cells or allogeneic cells under long-term cultivation. Objective: to study the capability of human nasal chondrocytes for colonization of devitalized scaffolds based on native human tracheal cartilage, with proinflammatory stimulation (cytokine) by adding Interleukin-1-beta (IL-1β) to the culture medium. Materials and methods. Scaffolds for tracheal tissue engineering were obtained from native human tracheal cartilage through devitalization and laser etching. The scaffold was revitalized by seeding the human nasal chondrocytes. Histological examination was performed after staining with hematoxylin and safranin-O, with further microscopy using a Nikon Eclipse L200 light microscope. X-ray microtomography was performed on a Phoenix nanotom m apparatus. Electron microscopy was performed on a Nova NanoSEM 230 setup. Results. There was statistically significant increase in the intensity of colonization (p = 0.0008) with nasal chondrocytes and stimulation of their migration activity (p < 0.0001) in the presence of IL-1β compared with the control groups. Conclusion. Addition of proinflammatory cytokine IL-1β (1 μg/ml) to the culture medium enhances volumetric seeding of devitalized cartilage scaffold with human nasal chondrocytes, allowing to create highly revitalized materials for tracheal tissue engineering.

vitalization, inflammation, interleukin‑1‑beta (IL‑1β), cultured cells, laser etching, revitalization, tissue engineering, physiological relevance, chondrocytes, cartilage matrix

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