Figure 5.
Figure 5. Tumor-derived Wnt1 normalized vascularization and retained vascular barrier properties in GL261 glioma. (A, left) Representative H&E staining of serial thick sections of tumor-bearing mouse brains. (right) Corresponding IF staining for Podxl and TOPRO-3. (B, top) Quantification of glioma volume based on H&E staining (control−D n = 3, Wnt1−D n = 6, and Dkk1−D n = 4; *, P < 0.05). (bottom) Podxl+ vessel areas within tumors (control n = 4, Wnt1 n = 6, Dkk1 n = 5; **, P < 0.01). (C) IF staining for CD31/PECAM-1 and desmin (n = 3 tumors/group, 8 pictures/tumor; *, P < 0.05). (D) Large image reconstructions of IF staining for mouse endogenous IgG (mIgG), Podxl, and TOPRO-3 on brain sections bearing control−D, Wnt1−D, and Dkk1−D glioma. Bars: (A) 200 µm; (C) 50 µm; (D, top) 1 mm; (D, bottom) 27 µm. Error bars indicate SEM.

Tumor-derived Wnt1 normalized vascularization and retained vascular barrier properties in GL261 glioma. (A, left) Representative H&E staining of serial thick sections of tumor-bearing mouse brains. (right) Corresponding IF staining for Podxl and TOPRO-3. (B, top) Quantification of glioma volume based on H&E staining (control−D n = 3, Wnt1−D n = 6, and Dkk1−D n = 4; *, P < 0.05). (bottom) Podxl+ vessel areas within tumors (control n = 4, Wnt1 n = 6, Dkk1 n = 5; **, P < 0.01). (C) IF staining for CD31/PECAM-1 and desmin (n = 3 tumors/group, 8 pictures/tumor; *, P < 0.05). (D) Large image reconstructions of IF staining for mouse endogenous IgG (mIgG), Podxl, and TOPRO-3 on brain sections bearing control−D, Wnt1−D, and Dkk1−D glioma. Bars: (A) 200 µm; (C) 50 µm; (D, top) 1 mm; (D, bottom) 27 µm. Error bars indicate SEM.

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