Regarding the human prostate, IHC staining of tissue microarrays across human cancers revealed minimal or no DCLK1 expression in the normal prostate but strong immunoreactivity of DCLK1 in the cytoplasm of PCa cells 5, consistent with the results of the cellular immunofluorescence analysis performed by Vlajic et al.26. The gene discussed is DCLK1; the disease is cancer.