CPXM1 is an epigenetic factor involved in many physiological processes including osteoclast differentiation and adipogenesis, which might be a novel biomarker for the detection and treatment of various cancers, including gastric cancer, ovarian cancer, breast cancer, neck squamous cell carcinoma, myelodysplastic syndrome, and papillary thyroid (45). The gene discussed is CPXM1; the disease is breast cancer.