MMP9 and tongue squamous cell carcinoma: The dataset (38 patient samples) exhibited IL-1B (p = 2.67 × 10−6), TGF-β2 (p = 2.23 × 10−4), and MMP9 (p = 0.01) genes to be upregulated in tongue squamous cell carcinoma (SCC) compared with normal tongue tissue (Figure S1D).