6PPDQ Promotes Cutaneous Squamous Cell Carcinoma Growth with PI3K-Akt/MMP9 Activation: Evidence from Integrated Network Toxicology and Experimental Investigation
N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD) and its transformation product 6PPD-quinone (6PPDQ) are emerging tire-derived environmental contaminants, showing a potential tumor-promoting effect. However, their relevance to cutaneous squamous cell carcinoma (cSCC) remains unclear. Here, we used network toxi...