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Interaction between amphiphilic peptides and phospholipid membranes

TLDR
This brief review aims at providing some illustrative examples on the interaction between amphiphilic peptides and phospholipid membranes an area of significant current interest focusing on antimicrobial peptides.
Abstract
This brief review aims at providing some illustrative examples on the interaction between amphiphilic peptides and phospholipid membranes an area of significant current interest Focusing on antimicrobial peptides factors affecting peptide-membrane interactions are addressed including effects of peptide length charge hydrophobicity secondary structure and topology Effects of membrane composition are also illustrated including effects of membrane charge nature of the polar headgroup and presence of cholesterol and other sterols Throughout novel insights on the importance of peptide adsorption density on membrane stability are emphasized as is the correlation between peptide adsorption peptide induced leakage in model liposome systems peptide-induced lysis of bacteria and bacteria killing (C) 2010 Elsevier Ltd All rights reserved (Less)

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Journal ArticleDOI

Understanding nanoparticle cellular entry: A physicochemical perspective

TL;DR: It is suggested that the energetic process of NP cellular entry can be evaluated by studying the effects of NPs on lipid mesophase transitions, as the molecular deformations and thus the elastic energy cost are analogous between such transitions and endocytosis.
Journal ArticleDOI

Membrane targeting cationic antimicrobial peptides

TL;DR: This review will first introduce the key approaches recently utilised in structural design of AMPs and then introduce the main lipid membrane models such as spread lipid monolayers and vesicles together with the characterisation techniques adopted in early AMP design and development.
Journal ArticleDOI

Delivery systems for antimicrobial peptides

TL;DR: An overview is provided of the current understanding of delivery systems for antimicrobial peptides, with special focus on AMP-carrier interactions, as well as consequences of these interactions for antimacterial and related biological effects of AMPs-containing formulations.
Journal ArticleDOI

A pH-responsive α-helical cell penetrating peptide-mediated liposomal delivery system.

TL;DR: The pH-responsiveness of TH-Lip led to strong inhibition against tumor cell growth which occurred both in vitro (under pH 6.3) and in vivo, and the tumor inhibition rate reached 86.3% on C26 tumor-bearing mice for PTX-loaded TH-lip.
Journal ArticleDOI

Antimicrobial and antiviral hydrogels

TL;DR: This brief review aims at providing some illustrative examples of different types of antimicrobial (antibacterial/antifungal) and antiviral hydrogels, formed by cationic polymers alone, or polymer mixtures with antimicrobial compounds.
References
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Journal ArticleDOI

Antimicrobial peptides: pore formers or metabolic inhibitors in bacteria?

TL;DR: In this review the different models of antimicrobial-peptide-induced pore formation and cell killing are presented and several observations suggest that translocated peptides can alter cytoplasmic membrane septum formation, inhibit cell-wall synthesis, inhibit nucleic-acid synthesis, inhibits protein synthesis or inhibit enzymatic activity.
Journal ArticleDOI

Mode of action of membrane active antimicrobial peptides.

TL;DR: Although many studies support that bacterial membrane damage is a lethal event for bacteria, other studies point to a multihit mechanism in which the peptide binds to several targets in the cytoplasmic region of the bacteria.
Journal ArticleDOI

Molecular modeling of protein-glycosaminoglycan interactions.

TL;DR: It is suggested that these consensus sequence elements form potential nucleation sites for the recognition of potyanions In proteins and may provide a useful guide In identifying heparln-blnding regions In other proteins.
Journal ArticleDOI

Amphipathic, α‐helical antimicrobial peptides

TL;DR: This review considers alpha-helical, antimicrobial peptides from the point of view of six interrelated structural and physicochemical parameters that modulate their activity and specificity: sequence, size, structuring, charge, amphipathicity, and hydrophobicity.
Journal ArticleDOI

LL-37, the only human member of the cathelicidin family of antimicrobial peptides.

TL;DR: LL-37, the only cathelicidin-derived antimicrobial peptide found in humans, is shown to exhibit a broad spectrum of antimicrobial activity and has been found to have additional defensive roles such as regulating the inflammatory response and chemo-attracting cells of the adaptive immune system to wound or infection sites.
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