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INF-γ effect in NB cells cultured within 3D alginate spheres. Immunofluorescent images of PVR, B7-H3, PD-L1, PD-L2, and HLA-I expression (in red) in NB cell-laden alginate spheres cultured a week either in the absence or in the presence of INF-γ. The anti-NKp46 mAb is used as a negative control.
