Abstract
It is becoming increasingly clear that plants ranging across the plant kingdom produce anionic host defence peptides (AHDPs) with potent activity against a wide variety of human cancers cells. In general, this activity involves membrane partitioning by AHDPs, which leads to membranolysis and / or internalization to attack intracellular targets such as DNA. Several models have been proposed to describe these events including: the toroidal pore and Shai-Matsuzaki-Huang mechanisms but, in general, the mechanisms underpinning the membrane interactions and anticancer activity of these peptides are poorly understood. Plant AHDPs with anticancer activity can be conveniently discussed with reference to two groups: cyclotides, which possess cyclic molecules stabilized by cysteine knot motifs, and other ADHPs that adopt extended and α-helical conformations. Here, we review research into the anticancer action of these two groups of peptides along with current understanding of the mechanisms underpinning this action.
Keywords: Antimicrobial, anticancer, anionic host defence peptides.
Protein & Peptide Letters
Title:Anionic Host Defence Peptides from the Plant Kingdom: Their Anticancer Activity and Mechanisms of Action
Volume: 23 Issue: 8
Author(s): Frederick Harris, Saurabh Prabhu, Sarah R. Dennison, Timothy J. Snape, Robert Lea, Manuela Mura and David A. Phoenix
Affiliation:
Keywords: Antimicrobial, anticancer, anionic host defence peptides.
Abstract: It is becoming increasingly clear that plants ranging across the plant kingdom produce anionic host defence peptides (AHDPs) with potent activity against a wide variety of human cancers cells. In general, this activity involves membrane partitioning by AHDPs, which leads to membranolysis and / or internalization to attack intracellular targets such as DNA. Several models have been proposed to describe these events including: the toroidal pore and Shai-Matsuzaki-Huang mechanisms but, in general, the mechanisms underpinning the membrane interactions and anticancer activity of these peptides are poorly understood. Plant AHDPs with anticancer activity can be conveniently discussed with reference to two groups: cyclotides, which possess cyclic molecules stabilized by cysteine knot motifs, and other ADHPs that adopt extended and α-helical conformations. Here, we review research into the anticancer action of these two groups of peptides along with current understanding of the mechanisms underpinning this action.
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Cite this article as:
Harris Frederick, Prabhu Saurabh, Dennison R. Sarah, Snape J. Timothy, Lea Robert, Mura Manuela and Phoenix A. David, Anionic Host Defence Peptides from the Plant Kingdom: Their Anticancer Activity and Mechanisms of Action, Protein & Peptide Letters 2016; 23 (8) . https://dx.doi.org/10.2174/0929866523666160511151215
DOI https://dx.doi.org/10.2174/0929866523666160511151215 |
Print ISSN 0929-8665 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5305 |
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