MMD and gastric cancer: Figure 9G showed a strong correlation between low miR-200b-3p levels and poor overall survival in individuals with GC. qPCR confirmed that miR-200b-3p expression was low in the GC cells (Figure 9H). Our findings indicated that MMD expression decreased with increasing miR-200b-3p levels (Figures 9I, J), and conversely, MMD expression increased with decreasing miR-200b-3p levels (Figures 9M, N). Dual-luciferase assay confirmed that MMD was a direct target of miR-200b-3p (Figures 9K, L).