Figures & data
Figure 1. Compared to the control group, NME2 expression was high in OS cell lines and clinical OS tumor tissues. (A) RT-PCR confirmed that the mRNA expression of NME2 was significantly higher in MNNG/HOS and MG63 cell lines than in hFob1.19 cell lines. (B) NME2 protein was overexpressed in MNNG/HOS and MG63 cell lines compared to hFob1.19. (C) The mRNA expression levels of NME2 in clinical tumor tissues were significantly higher than in the corresponding adjacent non-tumor tissues. (D) RT-PCR demonstrated that the NME2 expression in tumor tissues was 65% higher than in non-tumor tissues.
![Figure 1. Compared to the control group, NME2 expression was high in OS cell lines and clinical OS tumor tissues. (A) RT-PCR confirmed that the mRNA expression of NME2 was significantly higher in MNNG/HOS and MG63 cell lines than in hFob1.19 cell lines. (B) NME2 protein was overexpressed in MNNG/HOS and MG63 cell lines compared to hFob1.19. (C) The mRNA expression levels of NME2 in clinical tumor tissues were significantly higher than in the corresponding adjacent non-tumor tissues. (D) RT-PCR demonstrated that the NME2 expression in tumor tissues was 65% higher than in non-tumor tissues.](/cms/asset/d5fd774c-c4d4-4ae5-85c2-56ff01ec0053/kcbt_a_1416273_f0001_oc.gif)
Figure 2. The downregulation of NME2 expression in osteosarcoma cell lines affects cell proliferation. (A) Compared to si-NC targeted MNNG/HOS cells, NME2 expression was significantly downregulated in si-NME2 targeted MNNG/HOS cells at the mRNA and protein levels. (B) Compared to si-NC targeted MG63 cells, NME2 expression at the mRNA and protein levels was significantly downregulated in the si-NME2 targeted MG63 cells.(C) The proliferation of si-NC targeted MNNG/HOS cells was significantly higher than that of si-NME2 transfected MNNG/HOS cells from the 3rd day. (D) The proliferation of MG63 cells was significantly lower from the 3rd day onwards when transfected with si-NME2 compared to those transfected with si-NC.
![Figure 2. The downregulation of NME2 expression in osteosarcoma cell lines affects cell proliferation. (A) Compared to si-NC targeted MNNG/HOS cells, NME2 expression was significantly downregulated in si-NME2 targeted MNNG/HOS cells at the mRNA and protein levels. (B) Compared to si-NC targeted MG63 cells, NME2 expression at the mRNA and protein levels was significantly downregulated in the si-NME2 targeted MG63 cells.(C) The proliferation of si-NC targeted MNNG/HOS cells was significantly higher than that of si-NME2 transfected MNNG/HOS cells from the 3rd day. (D) The proliferation of MG63 cells was significantly lower from the 3rd day onwards when transfected with si-NME2 compared to those transfected with si-NC.](/cms/asset/3d9e5672-e0b6-4e73-bb1a-e146846ef79f/kcbt_a_1416273_f0002_b.gif)
Figure 3. Cells were significantly arrested in the G2/M phase, when the expression of NME2 was knocked down in MNNG/HOS and MG63 cells. (A) In the si-NC transfected MNNG/HOS cell line, the cell cycle assay showed that 37.51% ± 1.57% of the cells were in the G1 phase, 7.84% ± 0.65% of the cells were in the G2 phase and 54.65% ± 1.81% of the cells were in the S phase. (B) In the si-NME2 transfected MNNG/HOS cell line, the cell cycle assay showed that 38.61% ± 0.76% of the cells were in the G1 phase, 14.18% ± 1.06% of the cells were in the G2 phase and 47.20% ± 1.78% of the cells were in the S phase. (C) The cell cycle was arrested in the G2/M phase after the transfection of si-NME2 in the MNNG/HOS cell line. (D) In the si-NC transfected MG63 cell line, the cell cycle assay showed that 37.64% ± 2.07% of the cells were in the G1 phase, 8.75% ± 1.43% of the cells were in the G2 phase and 53.61% ± 1.03% of the cells were in the S phase. (E) In the si-NME2 transfected MG63 cell line, the cell cycle assay showed that 35.48% ± 2.36% of the cells were in the G1 phase, 14.12% ± 1.96% of the cells were in the G2 phase and 50.40% ± 4.31% of the cells were in the S phase. (F) The cell cycle was arrested in the G2/M phase after the transfection of si-NME2 in the MG63 cell line. Error bars represent Standard Deviation.
![Figure 3. Cells were significantly arrested in the G2/M phase, when the expression of NME2 was knocked down in MNNG/HOS and MG63 cells. (A) In the si-NC transfected MNNG/HOS cell line, the cell cycle assay showed that 37.51% ± 1.57% of the cells were in the G1 phase, 7.84% ± 0.65% of the cells were in the G2 phase and 54.65% ± 1.81% of the cells were in the S phase. (B) In the si-NME2 transfected MNNG/HOS cell line, the cell cycle assay showed that 38.61% ± 0.76% of the cells were in the G1 phase, 14.18% ± 1.06% of the cells were in the G2 phase and 47.20% ± 1.78% of the cells were in the S phase. (C) The cell cycle was arrested in the G2/M phase after the transfection of si-NME2 in the MNNG/HOS cell line. (D) In the si-NC transfected MG63 cell line, the cell cycle assay showed that 37.64% ± 2.07% of the cells were in the G1 phase, 8.75% ± 1.43% of the cells were in the G2 phase and 53.61% ± 1.03% of the cells were in the S phase. (E) In the si-NME2 transfected MG63 cell line, the cell cycle assay showed that 35.48% ± 2.36% of the cells were in the G1 phase, 14.12% ± 1.96% of the cells were in the G2 phase and 50.40% ± 4.31% of the cells were in the S phase. (F) The cell cycle was arrested in the G2/M phase after the transfection of si-NME2 in the MG63 cell line. Error bars represent Standard Deviation.](/cms/asset/024e4fb3-8d3b-4928-a75c-77b27325bf71/kcbt_a_1416273_f0003_oc.gif)
Figure 4. The clone forming assay showed that the number of colonies was significantly reduced when the expression of NME2 was knocked down in the MNNG/HOS (A) and MG63 (B) cell lines. (C) NME2 expression in adjacent non-tumor tissues (D) NME2 expression in tumor tissues (E) c-Myc expression in adjacent non-tumor tissues (F) c-Myc expression in tumor tissues. The tumor cells show cytoplasmic staining. All images were captured at 200 × magnification.
![Figure 4. The clone forming assay showed that the number of colonies was significantly reduced when the expression of NME2 was knocked down in the MNNG/HOS (A) and MG63 (B) cell lines. (C) NME2 expression in adjacent non-tumor tissues (D) NME2 expression in tumor tissues (E) c-Myc expression in adjacent non-tumor tissues (F) c-Myc expression in tumor tissues. The tumor cells show cytoplasmic staining. All images were captured at 200 × magnification.](/cms/asset/619e49b4-36f4-423c-9113-75f9999ba799/kcbt_a_1416273_f0004_oc.gif)
Table 1. Relationship between NME2 IHC results and clinical information for 50 OS patients.