▁accuracy ▁in ▁ident ifying ▁early ▁pro state ▁cancer ▁than ▁the ▁standard ▁pro state ▁cancer ▁marker , ▁P SA . ▁ ▁" EP CA - 2 " ▁is ▁not ▁the ▁name ▁of ▁a ▁gene . ▁EP CA - 2 ▁gets ▁its ▁name ▁because ▁it ▁is ▁the ▁second ▁pro state ▁cancer ▁marker ▁identified ▁by ▁the ▁research ▁team . ▁This ▁earlier ▁marker ▁was ▁previously ▁known ▁as ▁" EP CA ", ▁but ▁is ▁now ▁called ▁" EP CA - 1 ". ▁ ▁EP CA - 2 ▁versus ▁P SA ▁▁ ▁Lem an , ▁Get zen berg ▁and ▁colle agues ▁describe , ▁in ▁the ▁April ▁ 2 0 0 7 ▁issue ▁of ▁U ro log y , ▁the ▁performance ▁characteristic ▁of ▁EP CA - 2 , ▁a ▁novel ▁nuclear ▁protein ▁marker ▁for ▁pro state ▁cancer ▁cells . ▁This ▁paper ▁has ▁since ▁been ▁ret ract ed ▁by ▁the ▁publish er . ▁ ▁A ▁study ▁was ▁initi ated ▁which ▁suggested ▁that ▁the ▁EP CA - 2 ▁protein ▁ser um ▁ass ay ▁exhib its ▁favor able ▁performance ▁characteristics ▁which ▁are ▁ ▁potentially ▁superior ▁to ▁ser um ▁P SA . ▁However ▁more ▁studies ▁are ▁necessary ▁to ▁see ▁if ▁this ▁test ▁will ▁retain ▁its ▁sens itivity ▁when ▁used ▁in ▁a ▁screen ing ▁population . ▁ ▁In ▁September ▁ 2 0 0 8 ▁the ▁industry ▁spons or ▁of ▁EP CA - 2 , ▁On con ome ▁su ed ▁Dr ▁Robert ▁Get zen berg , ▁J H U , ▁and ▁the ▁University ▁of ▁Pitts burgh , ▁his ▁previous ▁institution , ▁claim ing ▁that ▁Get zen