ETV5 is a transcription factor that binds DNA sequences containing the consensus core 5'-GGAA-3' motif and functions as both a positive and negative regulator of RNA polymerase II-dependent transcription 1. In lung regeneration, ETV5 signaling promotes alveolar type II cell proliferation while inhibiting differentiation into type I cells 1. In disease contexts, ETV5 demonstrates oncogenic functions across multiple cancer types. In ependymoma, ETV5 enhances repressive chr3 states to promote tumorigenesis and suppresses neuropeptide Y expression 2. In glioblastoma, the IGFBP5-ROR1/HER2-CREB axis induces ETV5 expression to enhance invasion and tumorigenesis 3. In hepatocellular carcinoma, ETV5 transactivates PD-L1 and S100A9 to recruit immunosuppressive polymorphonuclear myeloid-derived suppressor cells, promoting metastasis and immune escape 4. ETV5 also regulates IRGM-mediated autophagy in esophageal squamous cell carcinoma, contributing to cisplatin resistance 5. Additionally, YTHDF2-mediated translation of ETV5 promotes HCC immune evasion and angiogenesis through PD-L1 and VEGFA induction 6. In ischemic stroke, ETV5 functions as an astrocyte-specific transcription factor associated with oxygen concentration regulation 7. Genetically, ETV5 variants contribute to adiponectin level variability and associated metabolic disease risk 8.