FIGURE

Fig. 5

ID

ZDB-FIG-240103-5

Publication

Lin et al., 2024 - RPTOR blockade suppresses brain metastases of NSCLC by interfering the ceramide metabolism via hijacking YY1 binding

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Fig. 5

The suppressed BM of NSCLC and attenuated SPHK2/S1P/STAT3 pathway in xenograft and zebrafish model by RPTOR blockade. A-J PC-9 cells were injected intravenously to construct the BM mouse model. Fluorescence microscopy showed that RPTOR blockade significantly suppressed the BM formation, the fluorescence of tumor cells in the ROI of BM, the expression of the proliferation marker Ki67 and MVD in the peritumoral area, prolonging overall survival (200 × magnification, scale bar = 50 μm). RPTOR overexpression produced the opposite effects. K Effects of RPTOR expression on the expression of proteins in BM tissue samples in nude mice. RPTOR knockdown reduced the expressions of RPTOR, YY1, SPHK2, and S1P1, with RPTOR overexpression yielding the opposite effects (200 × magnification, scale bar = 50 μm). L-O H1299 and PC9 cells bearing vectors for RPTOR knockdown or overexpression were injected into the perivitelline space of zebrafish embryos. The number of cancer cells at days 1 and 3 after the injection was significantly higher in the RPTOR-overexpressed group than in their respective control groups, whereas the number of cancer cells at days 1 and 3 after injection was significantly lower in RPTOR-knockdown cells than in control cells

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Antibody Labeling

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Acknowledgments

This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image. Full text @ J. Exp. Clin. Cancer Res.