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Abstract Title:

Apoptotic effects of bovine apo-lactoferrin on HeLa tumor cells.

Abstract Source:

Cell Biochem Funct. 2017 Jan ;35(1):33-41. Epub 2017 Jan 3. PMID: 28052347

Abstract Author(s):

Carla Luzi, Fabrizia Brisdelli, Roberto Iorio, Argante Bozzi, Veronica Carnicelli, Antonio Di Giulio, Anna Rita Lizzi

Article Affiliation:

Carla Luzi

Abstract:

Lactoferrin (Lf), a cationic iron-binding glycoprotein of 80 kDa present in body secretions, is known as a compound with marked antimicrobial activity. In the present study, the apoptotic effect of iron-free bovine lactoferrin (apo-bLf) on human epithelial cancer (HeLa) cells was examined in association with reactive oxygen species and glutathione (GSH) levels. Apoptotic effect of iron-free bovine lactoferrin inhibited the growth of HeLa cells after 48 hours of treatment while the diferric-bLf was ineffective in the concentration range tested (from 1 to 12.5 μM). Western blot analysis showed that key apoptotic regulators including Bax, Bcl-2, Sirt1,Mcl-1, and PARP-1 were modulated by 1.25 μM of apo-bLf. In the same cell line, apo-bLf induced apoptosis together with poly (ADP-ribose) polymerase cleavage, caspase activation, and a significant drop of NAD. In addition, apo-bLf-treated HeLa cells showed a marked increase of reactive oxygen species level and a significant GSH depletion. On the whole, apo-bLf triggered apoptosis of HeLa cells upon oxygen radicals burst and GSH decrease.

Study Type : In Vitro Study

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