Drug Discovery and Development

  • Home Drug Discovery and Development
  • Drug Discovery
  • Women in Pharma
  • Oncology
  • Neurological Disease
  • Infectious Disease
  • R&D 100 Awards
  • Pharma 50
    • 2022 Pharma 50
    • 2021 Pharma 50

Promising Strategy to Increase Activity in Antimicrobial Peptides

By INRS | April 4, 2017

In an article published recently in Plos One, researchers from INRS-Institut Armand-Frappier Research Centre reported a strategy that could lead to the discovery of new cationic antimicrobial peptides (CAMPs) with greatly enhanced antimicrobial properties. The peptide modified for the study retained considerable activity against biofilms responsible for increasing the severity of various infections. The strategy thus holds promise for combatting multidrug resistant bacteria.

For the purpose of the study, the researchers selected a peptide–pep1037–already known for its antimicrobial potential and antibiofilm activity against Pseudomonas aeruginosa and Burkholderia, two pathogens responsible for serious complications in individuals with cystic fibrosis. The peptide was modified by adding a cysteine to the end to generate a dimer. The antimicrobial activity of the new molecule was 60 times greater than that of the original peptide.

“Our results show that the dimer is of significant interest because it has a dual potential to inhibit both bacterial and biofilm growth. It could potentially be used for therapy in combination with clinically relevant antibiotics,” explained the authors of the study.

Although there are currently no clinically approved antimicrobials that target bacterial biofilms, an estimated 80% of all bacterial infections have a biofilm component. These infections are much more difficult to eradicate because they are 10-1,000 times more resistant to antibiotic treatment. The formation of biofilms is associated with severe antibiotic resistance in the lungs of patients with cystic fibrosis, among others.

To date, very few studies have reported on the effect of dimerizing cationic antimicrobial peptides by adding a cysteine, especially at the specific location modified by the researchers, i.e., at the end.

The results obtained pave the way to improving this class of antibiotics, which occur naturally in many organisms.


Filed Under: Drug Discovery

 

Related Articles Read More >

Diversity
Making diversity in clinical research more than a talking point
psychedelic medicine discussed at SXSW
5 headwinds and 5 tailwinds for psychedelic medicine
lab microscope
Accelerating R&D with FAIR data
Kallyope
Kallyope’s focus on the gut-brain axis yields a diverse portfolio

Need Drug Discovery news in a minute?

We Deliver!
Drug Discovery & Development Enewsletters get you caught up on all the mission critical news you need. Sign up today.
Enews Signup
Drug Discovery and Development
  • MassDevice
  • DeviceTalks
  • Medical Design & Outsourcing
  • Medical Tubing + Extrusion
  • Medtech100 Index
  • Medical Design Sourcing
  • Subscribe to our Free E-Newsletter
  • Contact Us
  • About Us
  • Advertise With Us
  • R&D World
  • Drug Delivery Business News
  • Pharmaceutical Processing World

Copyright © 2022 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Drug Discovery & Development

  • Home Drug Discovery and Development
  • Drug Discovery
  • Women in Pharma
  • Oncology
  • Neurological Disease
  • Infectious Disease
  • R&D 100 Awards
  • Pharma 50
    • 2022 Pharma 50
    • 2021 Pharma 50