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International Journal of Bioprinting                                    Biomimetic 3D printed glioma model


































































            Figure 6. The survival rate of neurons in G/N and N after 1, 3, and 5 days of culture. (A) Confocal images of live/dead staining (green color: live cells; red
            color: dead cells) of neurons. (B) Histograms of the survival rate of neurons in G/N and N. Significance was calculated using two-way ANOVA followed
            by t-test. All error bars are standard deviation. ∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001, and ∗∗∗∗p < 0.0001, respectively.
            G/N outgrew significantly more neurites and longer axons   scaffolds after being mixed evenly, which cannot precisely
            in G/N than that found in N during the 5 days of culturing.  represent the spatial relationship of different types of cells
                                                               found in vivo [30-32] . In this paper, we propose a novel bilayer
                                                               glioma 3D  in vitro model and provide a step-by-step
            4. Discussion                                      biofabrication method utilizing a removable UV-cured
            In conventional cell co-culture models, two or more cell   mold to bioprint neurons in the outer layer and glioma
            types are seeded onto 2D planar cell culture dishes or 3D   cells in the inner layer. Compared with the traditional

            Volume 9 Issue 4 (2023)                         9                           https://doi.org/10.18063/ijb.715
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