FOLH1 and Familial prostate cancer: Moreover, a peptide consisting of a prostate-specific membrane antigen (PSMA) substrate linked to a membrane-disrupting amoebapore H3 peptide (GFIATLCTKVLDFGIDKLQLIEDK) was highly active against PSMA-expressing LNCaP prostate cancer cells but not against PSMA-negative PC3 prostate cancer cells64.