Figure 2: CASC2 overexpression suppressed CRC cells growth and tumor growth in vitro and in vivo by extending the G0/G1-S phase transition.

(A) The relative expression level of CASC2 in CRC cell lines transfected with empty vector (control) or pcDNA-CASC2 was tested by qRT-PCR. *Pā<ā0.05 were calculated by using the Two-sided Studentās t-test. CCK-8 assays were performed to measure the proliferation of CACO2 (B) and HT-29 cells (C). *Pā<ā0.05 were calculated by using the Two-sided Studentās t-test method; nā=ā6. Colony-forming growth assays were performed to measure the proliferation of CACO2 (D) and HT-29 cells (E). *Pā<ā0.05 were calculated by using the Two-sided Studentās t-test method; nā=ā3. Cell cycle analysis of CACO2 cells (F) and HT-29 cells (G) transfected with empty vector or pcDNA-CASC2. The data are presented as the meanā±āSD from three experiments, *Pā<ā0.05 compared with the control, Two-sided Studentās t-test; nā=ā3. The impact of CASC2 overexpression on tumor growth in vivo after CACO2 cells (H) and HT-29 cells (I) transfected with empty vector or pcDNA-CASC2. Tumor volumes were calculated after injection every 2 days. The experiment was repeated three times, and the data are presented as the meanā±āSD (nā=ā6). *Pā<ā0.05, Two-sided Studentās t-test.