NIMA-related kinase 2 (NEK2) is a serine/threonine kinase that plays crucial roles in cellular events such as centrosome separation, cell cycle progression, spindle assembly checkpoint (SAC) regulation, and microtubule stabilization. However, its regulatory function during oocyte meiotic maturation remains unclear. In this study, NEK2 activity was inhibited using the specific inhibitor MBM-55 to evaluate its role in oocyte mei...