In vitro biological activities of magainin alone or in combination with nisin

Antimicrobial peptides have received increasing attention not only as potential candidates to their administration as antimicrobial agents, but also as potential drugs applied in cancer therapy. Here, we have examined the action of both nisin and magainin on human promyelocytic leukemia HL-60 cells....

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Veröffentlicht in:Peptides (New York, N.Y. : 1980) N.Y. : 1980), 2006-06, Vol.27 (6), p.1201-1209
Hauptverfasser: Cruz-Chamorro, Lidia, Puertollano, María A., Puertollano, Elena, de Cienfuegos, Gerardo Álvarez, de Pablo, Manuel A.
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container_end_page 1209
container_issue 6
container_start_page 1201
container_title Peptides (New York, N.Y. : 1980)
container_volume 27
creator Cruz-Chamorro, Lidia
Puertollano, María A.
Puertollano, Elena
de Cienfuegos, Gerardo Álvarez
de Pablo, Manuel A.
description Antimicrobial peptides have received increasing attention not only as potential candidates to their administration as antimicrobial agents, but also as potential drugs applied in cancer therapy. Here, we have examined the action of both nisin and magainin on human promyelocytic leukemia HL-60 cells. Cells were cultured in presence of either nisin or magainin 1 as well as in combination with both nisin and magainin 1. Results have revealed that magainin, but not nisin, produces a loss of cell viability in HL-60 cells, and a minor increase of hemolysis, whereas it is not responsible for cell membrane disruption and lactate dehydrogenase (LDH) leakage. In addition, magainin is involved in a significant generation of reactive oxygen species (ROS), as well as in an augment of caspase-3 activity. Magainin-induced apoptosis was verified by DNA fragmentation and annexin V-FITC/propidium iodide (PI) staining of the cells. Promotion of cell death by magainin occurs via cytochrome c release accompanied by a substantial increase of proteasome activity. These results underline the importance of magainin as a drug capable of exerting an in vitro antitumoral activity by triggering apoptosis.
doi_str_mv 10.1016/j.peptides.2005.11.008
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subjects Annexin-V
Anti-Bacterial Agents - administration & dosage
Antimicrobial Cationic Peptides - administration & dosage
Antimicrobial Cationic Peptides - chemistry
Antimicrobial Cationic Peptides - pharmacology
Apoptosis
Biological and medical sciences
Caspase 3
Caspases - metabolism
Cell Membrane - metabolism
Cytochrome c
Cytochromes c - metabolism
DNA Fragmentation
Drug Therapy, Combination
Fundamental and applied biological sciences. Psychology
HL-60 Cells
Humans
In Vitro Techniques
L-Lactate Dehydrogenase - metabolism
Magainin
Nisin
Nisin - administration & dosage
Nisin - pharmacology
Peptides - chemistry
Propidium - pharmacology
Proteasome activity
Reactive Oxygen Species
Vertebrates: endocrinology
title In vitro biological activities of magainin alone or in combination with nisin
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