In the CLC and NEPC groups, no association was found between CaSR and proliferation, determined by the percentage of Ki67 positive cancer cells (Spearman test, p = 0.4 and 0.5, respectively) and between CaSR and the ERG status (Mann–Whitney, p = 0.1 and 0.9, respectively). The gene discussed is MKI67; the disease is cancer.