EDA (ectodysplasin A) encodes a TNF family cytokine that plays a crucial role in ectodermal development, particularly in the formation of skin appendages including teeth, hair, and sweat glands 1. The protein exists in two isoforms, EDA-A1 and EDA-A2, which bind to different receptors (EDAR and XEDAR respectively) to activate downstream signaling pathways 2. EDA functions as an important effector of canonical Wnt signaling in developing skin appendages, stimulating NF-κB-mediated transcription of various pathway regulators including Sonic hedgehog, FGF, and TGFβ 1. The signaling cascade regulates epithelial-mesenchymal cell interactions critical for organ morphogenesis and differentiation 2. Mutations in EDA or its signaling pathway components cause hypohidrotic ectodermal dysplasia (HED), characterized by absent or malformed teeth, sparse hair, defective sweat glands, and associated complications like heat intolerance and increased infection susceptibility 13. X-linked mutations in EDA represent the most common form of ectodermal dysplasia 3. Therapeutic approaches using recombinant EDA1 replacement protein (Fc-EDA) have shown promise in clinical trials, particularly when administered prenatally 4, suggesting potential for correcting this developmental disorder.