Dear Editor,rnThis has reference to the commentary \'Growth inhibition prop erties of the putative prostate cancer biomarkers PSP94 and CRISP 3\' by van Eynde et al.published online in your journal in 2010.1 PSP94 and CRISP-3 are both secretory proteins.dentifying cell surface binding sites for both these molecules and understanding the down stream signaling would unravel their role(s) in prostate cancer.