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. 2021 Sep 29;12(10):888. doi: 10.1038/s41419-021-04193-7

Fig. 5. Hsa_circ_0043280 suppresses tumor growth and metastasis in CCa via a mechanism involving PAQR3 in vivo.

Fig. 5

A Representative images of dissected tumors from nude mice transplanted with stable hsa_circ_0043280 overexpression or hsa_circ_0043280 overexpression/PAQR3 knockdown cells. B Subcutaneous tumor growth curves of mice in different treatment groups. C The mean weight of tumors upon sacrifice in the experimental groups. D Representative images of the nude mouse model of popliteal LN metastasis. The indicated CCa cells were injected into the footpads of the nude mice, and the popliteal LNs were enucleated and analyzed. Representative images of enucleated popliteal LNs (E) and histogram analysis of the LN volume (F) in the indicated cells. G Representative images of HE and IHC as indicators of LN status. Original magnification, × 40 for HE and IHC, × 100 (Red). H Quantification of popliteal LN metastasis in the indicated groups. Representative images of HE staining of the lungs (I) and the number of nodules showing lung metastasis (J) in the tail-vein injection nude mice model undergoing different treatments. Original magnification, × 20. Each experiment was performed at least three times independently. *P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001.