RASSF7 (Ras association domain family member 7) is a multifunctional protein that plays critical roles in mitosis and apoptosis regulation. The protein localizes to the centrosome through its coiled-coil domain and is essential for proper mitotic progression 1. During mitosis, RASSF7 regulates microtubule dynamics and is required for spindle formation, Aurora B activation, and chr11 congression 1. The protein also functions as an anti-apoptotic factor by negatively regulating stress-induced JNK activation through promoting MAP2K7 phosphorylation 2. Additionally, RASSF7 exhibits tumor suppressor activity by inhibiting oncogenic c-Myc function through three mechanisms: promoting Cullin4B-mediated c-Myc degradation, competing with MAX for c-Myc binding, and reducing c-Myc occupancy on target gene promoters 3. Clinically, RASSF7 shows complex roles in cancer, with frequent DNA methylation-mediated silencing in neuroblastoma 4 but increased expression correlating with advanced tumor stages and metastasis in thyroid carcinomas 5. Truncated forms of RASSF7 can cause centrosomal defects and cell death, suggesting potential oncogenic properties in specific mutational contexts 6. These findings highlight RASSF7's dual role in cancer biology and its potential as both a therapeutic target and biomarker.