Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei

There is a continuously increasing pressure associated with the appearance of Salmonella enterica Serovar typhimurium (S. typhimurium) and Shigella sonnei (S. sonnei) that have developed pathogenic multiple antibiotic resistance and the cost of cure and control of these enterobacteriaceae infections...

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Main Authors: Hussein A. Almehdar, Nawal Abd El-Baky, Ehab H. Mattar, Raed Albiheyri, Atif Bamagoos, Abdullah Aljaddawi, Vladimir N. Uversky, Elrashdy M. Redwan
Format: Article
Language:English
Published: PeerJ Inc. 2023-01-01
Series:PeerJ
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Online Access:https://peerj.com/articles/14809.pdf
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author Hussein A. Almehdar
Nawal Abd El-Baky
Ehab H. Mattar
Raed Albiheyri
Atif Bamagoos
Abdullah Aljaddawi
Vladimir N. Uversky
Elrashdy M. Redwan
author_facet Hussein A. Almehdar
Nawal Abd El-Baky
Ehab H. Mattar
Raed Albiheyri
Atif Bamagoos
Abdullah Aljaddawi
Vladimir N. Uversky
Elrashdy M. Redwan
author_sort Hussein A. Almehdar
collection DOAJ
description There is a continuously increasing pressure associated with the appearance of Salmonella enterica Serovar typhimurium (S. typhimurium) and Shigella sonnei (S. sonnei) that have developed pathogenic multiple antibiotic resistance and the cost of cure and control of these enterobacteriaceae infections increases annually. The current report for first time demonstrated the distinguished antimicrobial action of camel lactoferrin (cLf) obtained from the milk of different clans of camel in Saudi Arabia against S. typhimurium and S. sonnei. These cLf subtypes showed comparable antimicrobial potential when tested against the two bacterial strains but were superior to either bovine (bLf) or human lactoferrin (hLf). The synergism between lactoferrins and antibiotics concerning their antibacterial efficacies against the two bacterial strains was evident. Exploring mechanisms by which camel lactoferrin can kill S. typhimurium and S. sonnei revealed that cLf affects bacterial protein profile. Besides, it interacts with bacterial lipopolysaccharides (LPS) and numerous membrane proteins of S. typhimurium and S. sonnei, with each bacterial strain possessing distinctive binding membrane proteins for lactoferrin. Furthermore, as evidenced by electron microscopy analysis, cLf induces extracellular and intracellular morphological changes in the test bacterial strains when used alone or in combination treatment with antibiotics. Lactoferrin and antibiotics combination strongly disrupts the integrity of the bacterial cells and their membranes. Therefore, cLf can kill S. typhimurium and S. sonnei by four different mechanisms, such as iron chelation, affecting some bacterial proteins, binding to bacterial LPS and membrane proteins, and impairing the integrity of the bacterial cells and their membranes.
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spelling doaj.art-b66b3a4df1164b439d33f8e4b5462ea72023-12-03T09:59:37ZengPeerJ Inc.PeerJ2167-83592023-01-0111e1480910.7717/peerj.14809Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonneiHussein A. Almehdar0Nawal Abd El-Baky1Ehab H. Mattar2Raed Albiheyri3Atif Bamagoos4Abdullah Aljaddawi5Vladimir N. Uversky6Elrashdy M. Redwan7Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaTherapeutic and Protective Proteins Laboratory, Protein Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications, Alexandria, EgyptDepartment of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaDepartment of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaDepartment of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaDepartment of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaDepartment of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaDepartment of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi ArabiaThere is a continuously increasing pressure associated with the appearance of Salmonella enterica Serovar typhimurium (S. typhimurium) and Shigella sonnei (S. sonnei) that have developed pathogenic multiple antibiotic resistance and the cost of cure and control of these enterobacteriaceae infections increases annually. The current report for first time demonstrated the distinguished antimicrobial action of camel lactoferrin (cLf) obtained from the milk of different clans of camel in Saudi Arabia against S. typhimurium and S. sonnei. These cLf subtypes showed comparable antimicrobial potential when tested against the two bacterial strains but were superior to either bovine (bLf) or human lactoferrin (hLf). The synergism between lactoferrins and antibiotics concerning their antibacterial efficacies against the two bacterial strains was evident. Exploring mechanisms by which camel lactoferrin can kill S. typhimurium and S. sonnei revealed that cLf affects bacterial protein profile. Besides, it interacts with bacterial lipopolysaccharides (LPS) and numerous membrane proteins of S. typhimurium and S. sonnei, with each bacterial strain possessing distinctive binding membrane proteins for lactoferrin. Furthermore, as evidenced by electron microscopy analysis, cLf induces extracellular and intracellular morphological changes in the test bacterial strains when used alone or in combination treatment with antibiotics. Lactoferrin and antibiotics combination strongly disrupts the integrity of the bacterial cells and their membranes. Therefore, cLf can kill S. typhimurium and S. sonnei by four different mechanisms, such as iron chelation, affecting some bacterial proteins, binding to bacterial LPS and membrane proteins, and impairing the integrity of the bacterial cells and their membranes.https://peerj.com/articles/14809.pdfCamel milkLactoferrinAntibacterialSalmonella typhimuriumShigella sonnei
spellingShingle Hussein A. Almehdar
Nawal Abd El-Baky
Ehab H. Mattar
Raed Albiheyri
Atif Bamagoos
Abdullah Aljaddawi
Vladimir N. Uversky
Elrashdy M. Redwan
Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei
PeerJ
Camel milk
Lactoferrin
Antibacterial
Salmonella typhimurium
Shigella sonnei
title Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei
title_full Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei
title_fullStr Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei
title_full_unstemmed Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei
title_short Exploring the mechanisms by which camel lactoferrin can kill Salmonella enterica serovar typhimurium and Shigella sonnei
title_sort exploring the mechanisms by which camel lactoferrin can kill salmonella enterica serovar typhimurium and shigella sonnei
topic Camel milk
Lactoferrin
Antibacterial
Salmonella typhimurium
Shigella sonnei
url https://peerj.com/articles/14809.pdf
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