Epigenetic inactivation of COL4A4 orchestrates JAK2/STAT3-driven progression and microenvironment reprogramming in renal cell carcinoma.
BACKGROUND Renal cell carcinoma (RCC) is a common urinary malignancy that lacks reliable early biomarkers. Although epigenetic silencing of tumor suppressor genes mediated by DNA methylation is common in RCC, the specific role and regulation of the basement membrane component COL4A4 remain unclear. METHODS Bulk and s...