Design and Evaluation of a Novel Anti-microbial Peptide from Cathelicidin-2: Selectively Active Against

Overview

Journal Iran J Pharm Res

Publisher Brieflands

Specialty Pharmacology

Date 2024 Mar 4

PMID 38435443

Authors

Fariba Fathi

Maryam Ghobeh

Farshad H Shirazi

Maryam Tabarzad

Affiliations

Soon will be listed here.

Abstract

Background: Infections caused by pathogenic microorganisms have increased the need for hospital care and have thus represented a public health problem and a significant financial burden. Classical treatments consisting of traditional antibiotics face several challenges today. Anti-microbial peptides (AMPs) are a conserved characteristic of the innate immune response among different animal species to defend against pathogenic microorganisms.

Objectives: In this study, a new peptide sequence (mCHTL131-140) was designed using the in silico approach.

Methods: Cathelicidin-2 (UniprotID: Q2IAL7) was used as a potential antimicrobial protein, and a novel 10 - 12 amino acids sequence AMP was designed using bioinformatics tools and the AMP databases. Then, the anti-bacterial, anti-biofilm, and anti-fungal properties of the peptide, as well as its hemolytic activity and cytotoxicity towards human fibroblast (HDF) cells, were investigated in vitro.

Results: Online bioinformatics tools indicated that the peptide sequence could have anti-bacterial, anti-viral, anti-fungal, and anti-biofilm properties with little hemolytic properties. The experimental tests confirmed that mCHTL131-140 exhibited the best anti-bacterial properties against and had fair anti-fungal properties. Besides, it did not cause red blood cell lysis and showed no cytotoxicity towards HDF cells.

Conclusions: In general, the designed peptide can be considered a promising AMP to control hospital-acquired infections by .

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