NPR2 (natriuretic peptide receptor 2) is a membrane-bound guanylyl cyclase that serves as the receptor for C-type natriuretic peptide (CNP), playing crucial roles in skeletal growth and reproductive biology 1. Upon CNP binding, NPR2 catalyzes the production of cyclic guanosine monophosphate (cGMP), which is essential for endochondral bone formation and oocyte meiotic arrest 23. In skeletal development, NPR2 regulates chondrocyte differentiation through the JAK2-STAT5 signaling pathway, influencing expression of key markers like Sox9, Col2A1, and BMP4 3. In reproductive physiology, the CNP/NPR2/cGMP pathway maintains oocyte developmental capacity by preventing premature meiotic resumption in cumulus cells 42. Heterozygous NPR2 mutations are found in 2-6% of idiopathic short stature cases and cause various skeletal dysplasias including acromesomelic dysplasia 15. Patients with NPR2 variants exhibit variable growth patterns and show mixed responses to growth hormone therapy, with some demonstrating significant height improvements 67. The receptor has also emerged as a potential drug target for heart failure, with Cenderitide currently in phase 2 clinical trials 8.