NXN (nucleoredoxin) is a redox-active multifunctional enzyme that primarily functions as a negative regulator of Wnt signaling during development and cell differentiation 1. The protein operates through redox-dependent mechanisms to suppress WNT pathway activation, potentially by preventing ubiquitination of DVL3 and promoting degradation of signaling intermediates like Snail through interaction with deubiquitinating enzymes 2. NXN is expressed in developing tissues including the pituitary gland and ventral diencephalon, where it regulates pituitary stem cell differentiation and craniofacial development 1. Clinically, NXN mutations cause autosomal recessive Robinow syndrome, a genetically heterogeneous disorder characterized by skeletal dysplasia, distinctive craniofacial features, short stature, and incompletely penetrant cardiac and palate defects 31. NXN deficiency leads to reduced WNT signaling and impaired pituitary development, suggesting endocrine complications in affected patients 1. Beyond developmental disease, NXN downregulation in hepatocellular carcinoma correlates with poor prognosis and increased metastatic potential, as NXN suppresses cancer cell proliferation and epithelial-mesenchymal transition 2. Additionally, NXN expression is altered in neuroinflammatory contexts, with epigenetic changes detected in Alzheimer's disease neurogenesis models 4. The protein also participates in alcoholic liver disease pathogenesis through interactions with the FLII/actin complex 5.