Figures & data
Figure 1 The level of microRNA-124 (miR-124) was downregulated and Capn4 expression was upregulated in NPC cell lines (HONE1, CNE1, and CNE2) compared with human nasal epithelial cell line (HNEpC) or immortalized nasopharyngeal epithelial cell line (NP69).
![Figure 1 The level of microRNA-124 (miR-124) was downregulated and Capn4 expression was upregulated in NPC cell lines (HONE1, CNE1, and CNE2) compared with human nasal epithelial cell line (HNEpC) or immortalized nasopharyngeal epithelial cell line (NP69).](/cms/asset/c1e581c9-36e7-4c0f-977a-6208d8afafd1/dott_a_12195517_f0001_b.jpg)
Figure 2 MicroRNA-124 (miR-124) inhibited proliferation and invasion of nasopharyngeal carcinoma (NPC) cell lines HONE1 and CNE2. HONE1 and CNE2 cells were transfected with miR-control or miR-124.
Abbreviation: NC, untreated cells.
![Figure 2 MicroRNA-124 (miR-124) inhibited proliferation and invasion of nasopharyngeal carcinoma (NPC) cell lines HONE1 and CNE2. HONE1 and CNE2 cells were transfected with miR-control or miR-124.](/cms/asset/8b5699f5-50fa-4c62-b125-be2d38f43757/dott_a_12195517_f0002_c.jpg)
Figure 3 MicroRNA-124 (miR-124) directly suppressed Calpain small subunit 1 (Capn4) expression.
Abbreviations: MUT, mutant; NC, untreated cells; WT, wild-type.
![Figure 3 MicroRNA-124 (miR-124) directly suppressed Calpain small subunit 1 (Capn4) expression.](/cms/asset/b4d76170-fff3-441b-a56b-140e7682666e/dott_a_12195517_f0003_b.jpg)
Figure 4 MicroRNA-124 (miR-124) suppressed proliferation and invasion of NPC cells through the inhibition of Capn4 expression. HONE1 and CNE2 cells were transfected with miR-124 or in combination with pcDNA-Capn4.
Abbreviation: NPC, nasopharyngeal carcinoma.
![Figure 4 MicroRNA-124 (miR-124) suppressed proliferation and invasion of NPC cells through the inhibition of Capn4 expression. HONE1 and CNE2 cells were transfected with miR-124 or in combination with pcDNA-Capn4.](/cms/asset/be3a3532-1a95-4644-9b78-7cf1a3004c03/dott_a_12195517_f0004_c.jpg)
Figure 5 The Wnt/β-catenin signaling pathway inhibitor, XAV939, suppressed proliferation and invasion of nasopharyngeal carcinoma (NPC) cells. HONE1 and CNE2 cells were treated with different doses of XAV939 (0, 10, and 20 μM).
![Figure 5 The Wnt/β-catenin signaling pathway inhibitor, XAV939, suppressed proliferation and invasion of nasopharyngeal carcinoma (NPC) cells. HONE1 and CNE2 cells were treated with different doses of XAV939 (0, 10, and 20 μM).](/cms/asset/e0bc8621-6cfd-45b8-8d79-6b0601a67a76/dott_a_12195517_f0005_b.jpg)
Figure 6 Overexpression of calpain small subunit 1 (Capn4) reversed the inhibitory effect of miR-124 on the Wnt/β-catenin signaling pathway. HONE1 and CNE2 cells were transfected with miR-124 or co-transfected with miR-124 and pcDNA-Capn4 (A and B). Western blot analysis revealed that Capn4 overexpression reversed the decreased β-catenin, cyclin D1, and c-Myc protein levels caused by the overexpression of miR-124 in HONE1 and CNE2 cells. Data are shown as mean ± standard deviation (n=3). *P<0.05 miR-124 or pcDNA -Capn4 treated cells vs miR-control or vector treated cells.
![Figure 6 Overexpression of calpain small subunit 1 (Capn4) reversed the inhibitory effect of miR-124 on the Wnt/β-catenin signaling pathway. HONE1 and CNE2 cells were transfected with miR-124 or co-transfected with miR-124 and pcDNA-Capn4 (A and B). Western blot analysis revealed that Capn4 overexpression reversed the decreased β-catenin, cyclin D1, and c-Myc protein levels caused by the overexpression of miR-124 in HONE1 and CNE2 cells. Data are shown as mean ± standard deviation (n=3). *P<0.05 miR-124 or pcDNA -Capn4 treated cells vs miR-control or vector treated cells.](/cms/asset/6f3167cc-ec02-427c-bc84-56ffb385166f/dott_a_12195517_f0006_b.jpg)