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Pulmonary delivery systems for antimicrobial peptides

Caselli, Lucrezia LU ; Rodrigues, Gisele R. ; Franco, Octavio L. LU and Malmsten, Martin LU (2023) In Critical Reviews in Biotechnology
Abstract

Bacterial infections of the respiratory tract cause millions of deaths annually. Several diseases exist wherein (1) bacterial infection is the main cause of disease (e.g., tuberculosis and bacterial pneumonia), (2) bacterial infection is a consequence of disease and worsens the disease prognosis (e.g., cystic fibrosis), and (3) bacteria-triggered inflammation propagates the disease (e.g., chronic obstructive pulmonary disease). Current approaches to combat infections generally include long and aggressive antibiotic treatments, which challenge patient compliance, thereby making relapses common and contributing to the development of antibiotic resistance. Consequently, the proportion of infections that cannot be treated with conventional... (More)

Bacterial infections of the respiratory tract cause millions of deaths annually. Several diseases exist wherein (1) bacterial infection is the main cause of disease (e.g., tuberculosis and bacterial pneumonia), (2) bacterial infection is a consequence of disease and worsens the disease prognosis (e.g., cystic fibrosis), and (3) bacteria-triggered inflammation propagates the disease (e.g., chronic obstructive pulmonary disease). Current approaches to combat infections generally include long and aggressive antibiotic treatments, which challenge patient compliance, thereby making relapses common and contributing to the development of antibiotic resistance. Consequently, the proportion of infections that cannot be treated with conventional antibiotics is rapidly increasing, and novel therapies are urgently needed. In this context, antimicrobial peptides (AMPs) have received considerable attention as they may exhibit potent antimicrobial effects against antibiotic-resistant bacterial strains but with modest toxicity. In addition, some AMPs suppress inflammation and provide other host defense functions (motivating the alternative term host defense peptides (HDPs)). However, the delivery of AMPs is complicated because they are large, positively charged, and amphiphilic. As a result of this, AMP delivery systems have recently attracted attention. For airway infections, the currently investigated delivery approaches range from aerosols and dry powders to various self-assembly and nanoparticle carrier systems, as well as their combinations. In this paper, we discuss recent developments in the field, ranging from mechanistic mode-of-action studies to the application of these systems for combating bacterial infections in the airways.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Antimicrobial, bacterial infection, drug delivery, lung, membrane, peptide
in
Critical Reviews in Biotechnology
publisher
Informa Healthcare
external identifiers
  • scopus:85171677513
  • pmid:37731338
ISSN
0738-8551
DOI
10.1080/07388551.2023.2254932
language
English
LU publication?
yes
id
b32cc2b8-c6d9-49b1-ab1b-c3028b2ffae4
date added to LUP
2023-12-21 10:29:22
date last changed
2024-06-15 01:14:49
@article{b32cc2b8-c6d9-49b1-ab1b-c3028b2ffae4,
  abstract     = {{<p>Bacterial infections of the respiratory tract cause millions of deaths annually. Several diseases exist wherein (1) bacterial infection is the main cause of disease (e.g., tuberculosis and bacterial pneumonia), (2) bacterial infection is a consequence of disease and worsens the disease prognosis (e.g., cystic fibrosis), and (3) bacteria-triggered inflammation propagates the disease (e.g., chronic obstructive pulmonary disease). Current approaches to combat infections generally include long and aggressive antibiotic treatments, which challenge patient compliance, thereby making relapses common and contributing to the development of antibiotic resistance. Consequently, the proportion of infections that cannot be treated with conventional antibiotics is rapidly increasing, and novel therapies are urgently needed. In this context, antimicrobial peptides (AMPs) have received considerable attention as they may exhibit potent antimicrobial effects against antibiotic-resistant bacterial strains but with modest toxicity. In addition, some AMPs suppress inflammation and provide other host defense functions (motivating the alternative term host defense peptides (HDPs)). However, the delivery of AMPs is complicated because they are large, positively charged, and amphiphilic. As a result of this, AMP delivery systems have recently attracted attention. For airway infections, the currently investigated delivery approaches range from aerosols and dry powders to various self-assembly and nanoparticle carrier systems, as well as their combinations. In this paper, we discuss recent developments in the field, ranging from mechanistic mode-of-action studies to the application of these systems for combating bacterial infections in the airways.</p>}},
  author       = {{Caselli, Lucrezia and Rodrigues, Gisele R. and Franco, Octavio L. and Malmsten, Martin}},
  issn         = {{0738-8551}},
  keywords     = {{Antimicrobial; bacterial infection; drug delivery; lung; membrane; peptide}},
  language     = {{eng}},
  publisher    = {{Informa Healthcare}},
  series       = {{Critical Reviews in Biotechnology}},
  title        = {{Pulmonary delivery systems for antimicrobial peptides}},
  url          = {{http://dx.doi.org/10.1080/07388551.2023.2254932}},
  doi          = {{10.1080/07388551.2023.2254932}},
  year         = {{2023}},
}