Black holes”, “Genome fluidity”, and Evolution of Bacterial Species

The formation of the massive deletion of genes called “black holes,” which are detrimental to a pathogenic lifestyle, provides a bacterial evolutionary route that permits a pathogen to augment virulence and host-adaptability. For example, cadaverine substrate has inhibitory effects on the enterotoxi...

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Main Authors: Kobra Salimiyan Rizi, Hadi Farsiani
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2022-09-01
Series:Reviews in Clinical Medicine
Subjects:
Online Access:https://rcm.mums.ac.ir/article_21789_4921e72bb5939c91aba556dcc0504747.pdf
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author Kobra Salimiyan Rizi
Hadi Farsiani
author_facet Kobra Salimiyan Rizi
Hadi Farsiani
author_sort Kobra Salimiyan Rizi
collection DOAJ
description The formation of the massive deletion of genes called “black holes,” which are detrimental to a pathogenic lifestyle, provides a bacterial evolutionary route that permits a pathogen to augment virulence and host-adaptability. For example, cadaverine substrate has inhibitory effects on the enterotoxin activity of the Shigella species. Therefore, the encoding gene of the lysine decarboxylase enzyme (CadA gene) as an anti-virulence gene is deleted from the genome of the Shigella. This and other similar cases in bacteria can be used for antitoxin therapy. Hence, identification of the role of black holes in the pathogenic evolution of bacteria output could possibly lead to novel treatments of infectious diseases in human beings. Here, we reviewed different types of pathoadaptation mutations among pathogens. Cases of black holes among the important human bacterial pathogens included Shigella, Rickettsiae, Mycobacterium leprae, Burkholderia, Bordetella, and Chlamydia. We found that the most prevalent pathoadaptive pathway among bacteria was the gene inactivation or deletion route.
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spelling doaj.art-6118ed3f8b3f40a8adcc3958f3d9f9352023-04-12T08:30:00ZengMashhad University of Medical SciencesReviews in Clinical Medicine2345-62562345-68922022-09-019314615510.22038/rcm.2023.66126.140421789Black holes”, “Genome fluidity”, and Evolution of Bacterial SpeciesKobra Salimiyan Rizi0Hadi Farsiani11. School of Medicine, Isfahan University of Medical Sciences, Isfahan 81744176, Iran. 2. Antimicrobial Resistance Research Center, Department of Medical Bacteriology and Virology, Qaem University Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, MashhadThe formation of the massive deletion of genes called “black holes,” which are detrimental to a pathogenic lifestyle, provides a bacterial evolutionary route that permits a pathogen to augment virulence and host-adaptability. For example, cadaverine substrate has inhibitory effects on the enterotoxin activity of the Shigella species. Therefore, the encoding gene of the lysine decarboxylase enzyme (CadA gene) as an anti-virulence gene is deleted from the genome of the Shigella. This and other similar cases in bacteria can be used for antitoxin therapy. Hence, identification of the role of black holes in the pathogenic evolution of bacteria output could possibly lead to novel treatments of infectious diseases in human beings. Here, we reviewed different types of pathoadaptation mutations among pathogens. Cases of black holes among the important human bacterial pathogens included Shigella, Rickettsiae, Mycobacterium leprae, Burkholderia, Bordetella, and Chlamydia. We found that the most prevalent pathoadaptive pathway among bacteria was the gene inactivation or deletion route.https://rcm.mums.ac.ir/article_21789_4921e72bb5939c91aba556dcc0504747.pdfbacterial genome evolutionaryblack holesshigellarickettsiaemycobacterium leprae
spellingShingle Kobra Salimiyan Rizi
Hadi Farsiani
Black holes”, “Genome fluidity”, and Evolution of Bacterial Species
Reviews in Clinical Medicine
bacterial genome evolutionary
black holes
shigella
rickettsiae
mycobacterium leprae
title Black holes”, “Genome fluidity”, and Evolution of Bacterial Species
title_full Black holes”, “Genome fluidity”, and Evolution of Bacterial Species
title_fullStr Black holes”, “Genome fluidity”, and Evolution of Bacterial Species
title_full_unstemmed Black holes”, “Genome fluidity”, and Evolution of Bacterial Species
title_short Black holes”, “Genome fluidity”, and Evolution of Bacterial Species
title_sort black holes genome fluidity and evolution of bacterial species
topic bacterial genome evolutionary
black holes
shigella
rickettsiae
mycobacterium leprae
url https://rcm.mums.ac.ir/article_21789_4921e72bb5939c91aba556dcc0504747.pdf
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