▁little ▁is ▁known ▁about ▁the ▁mechanism ▁of ▁its ▁ant if ung al ▁action . ▁L act o fer rin ▁seems ▁to ▁bind ▁the ▁pl asma ▁memb rane ▁of ▁C . ▁alb icans ▁indu cing ▁an ▁apo pt otic - like ▁process . ▁ ▁Ant ic arc in ogen ic ▁activity ▁The ▁ant ican cer ▁activity ▁of ▁b ov ine ▁la ct o fer rin ▁( b L F ) ▁has ▁been ▁demonstrated ▁in ▁experimental ▁lung , ▁bl ad der , ▁tongue , ▁colon , ▁and ▁li ver ▁car cin ogen eses ▁on ▁r ats , ▁possibly ▁by ▁supp ression ▁of ▁phase ▁I ▁en zym es , ▁such ▁as ▁cy to chrome ▁P 4 5 0 ▁ 1 A 2 ▁( C Y P 1 A 2 ). ▁Also , ▁in ▁another ▁experiment ▁done ▁on ▁ham sters , ▁b ov ine ▁la ct o fer rin ▁decre ased ▁the ▁inc idence ▁of ▁or al ▁cancer ▁by ▁ 5 0 %. ▁Currently , ▁b L F ▁is ▁used ▁as ▁an ▁ing red ient ▁in ▁y og urt , ▁che wing ▁g ums , ▁infant ▁formulas , ▁and ▁cos met ics . ▁ ▁C yst ic ▁fib ros is ▁The ▁human ▁lung ▁and ▁sal iva ▁contain ▁a ▁wide ▁range ▁of ▁ant im icro b ial ▁comp ound ▁including ▁la ct op ero x id ase ▁system , ▁producing ▁hypoth i oc yan ite ▁and ▁la ct o fer rin , ▁with ▁hypoth i oc yan ite ▁missing ▁in ▁c yst ic ▁fib ros is ▁patients .