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Antimicrobial and Cell-Penetrating Peptides: How to Understand Two Distinct Functions Despite Similar Physicochemical Properties

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Antimicrobial Peptides

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 1117))

Abstract

Antimicrobial and cell-penetrating peptides are both classes of membrane-active peptides sharing similar physicochemical properties. Both kinds of peptides have attracted much attention owing to their specific features. AMPs disrupt cell membranes of bacteria and display urgently needed antibiotic substances with alternative modes of action. Since the multidrug resistance of bacterial pathogens is a more and more raising concern, AMPs have gained much interest during the past years. On the other side, CPPs enter eukaryotic cells without substantially affecting the plasma membrane. They can be used as drug delivery platforms and have proven their usefulness in various applications. However, although both groups of peptides are quite similar, their intrinsic activity is often different, and responsible factors are still in discussion. The aim of this chapter is to summarize and shed light on recent findings and concepts dealing with differences and similarities of AMPs and CPPs and to understand these different functions.

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Notes

  1. 1.

    A few examples are listed in the text and in Table 7.1; however, this list is not exhaustive, and also alternative methods have been used.

Abbreviations

AMP:

Antimicrobial peptide

CD:

Circular dichroism

CPP:

Cell-penetrating peptide

CS:

Chondroitin sulfate

DSC:

Differential scanning calorimetry

EM:

Electron microscopy

EPR:

Electron paramagnetic resonance

FDA:

Food and Drug Administration

FMM:

Functional membrane microdomain

GAG:

Glycosaminoglycan

GPMV:

Giant plasma membrane vesicle

GUV:

Giant unilamellar vesicle

HS:

Heparan sulfate

IR:

Infrared

Ld :

Liquid disordered

Lo :

Liquid ordered

LTA:

Lipoteichoic acid

LUV:

Large unilamellar vesicle

MALDI:

Matrix-assisted laser desorption/ionization

MS:

Mass spectrometry

NMR:

Nuclear magnetic resonance

OBOC:

One bead one compound

PC:

Phosphatidylcholine

PE:

Phosphatidylethanolamine

PG:

Phosphatidylglycerol

PI:

Phosphatidylinositol

PS:

Phosphatidylserine

QSAR:

Quantitative structure-activity relation-ship

ROS:

Reactive oxygen species

STED:

Stimulated emission depletion

SUV:

Small unilamellar vesicle

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Correspondence to Ines Neundorf .

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© 2019 Springer Nature Singapore Pte Ltd.

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Neundorf, I. (2019). Antimicrobial and Cell-Penetrating Peptides: How to Understand Two Distinct Functions Despite Similar Physicochemical Properties. In: Matsuzaki, K. (eds) Antimicrobial Peptides. Advances in Experimental Medicine and Biology, vol 1117. Springer, Singapore. https://doi.org/10.1007/978-981-13-3588-4_7

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