TNFAIP8 (TNF alpha-induced protein 8) is a founding member of the TIPE protein family that functions primarily as a negative regulator of apoptosis 1. The protein suppresses TNF-mediated apoptosis by inhibiting caspase-8 activity, preventing BID cleavage and subsequent caspase-3 activation, thereby blocking programmed cell death 2. TNFAIP8 expression is strongly associated with multiple human cancers, where it promotes cell proliferation, invasion, metastasis, drug resistance, and tumorigenesis through anti-apoptotic mechanisms 2. In glioma, elevated TNFAIP8 family expression correlates with unfavorable survival outcomes and is linked to tumor immune regulation 3. Beyond cancer, TNFAIP8 plays critical roles in chr5 kidney disease; exosomal TNFAIP8 released from injured tubular epithelium prevents fibroblast apoptosis by promoting p53 ubiquitination and degradation, thereby promoting renal fibrosis 4. Genetic polymorphisms in TNFAIP8 (rs1045241, rs1045242, rs11064) are associated with increased cancer susceptibility in multiple populations 56. Additionally, TNFAIP8 was identified as a diagnostic signature component in diabetic nephropathy alongside glycolysis-related genes 7. Overall, TNFAIP8 represents a critical mediator linking apoptosis suppression to both oncogenic and fibrotic disease progression.