Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae

Abstract The Bartonella genus of bacteria encompasses ubiquitous species, some of which are pathogenic in humans and animals. Bartonella henselae, the causative agent of Cat Scratch disease, is responsible for a large portion of human Bartonella infections. These bacteria can grow outside of cells,...

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Main Authors: Shiva Kumar Goud Gadila, John R. Caskey, Edward B. Breitschwerdt, Ricardo G. Maggi, Monica E. Embers
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-025-07535-9
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author Shiva Kumar Goud Gadila
John R. Caskey
Edward B. Breitschwerdt
Ricardo G. Maggi
Monica E. Embers
author_facet Shiva Kumar Goud Gadila
John R. Caskey
Edward B. Breitschwerdt
Ricardo G. Maggi
Monica E. Embers
author_sort Shiva Kumar Goud Gadila
collection DOAJ
description Abstract The Bartonella genus of bacteria encompasses ubiquitous species, some of which are pathogenic in humans and animals. Bartonella henselae, the causative agent of Cat Scratch disease, is responsible for a large portion of human Bartonella infections. These bacteria can grow outside of cells, replicate in erythrocytes and invade endothelial and monocytic cells. We have previously reported reduced antibiotic susceptibility of intracellular Bartonella. In this study we performed comparative transcriptomic analyses between the extracellular and intracellular B. henselae phenotypes. Overall, specific genes involved in invasion, virulence, extracellular adhesion of type 4 secretion system were downregulated following intracellular invasion of B. henselae. Downregulation included BadA, a well-characterized adhesin molecule, of critical importance for cell invasion. These studies demonstrate the ability to purify Bartonella RNA from infected cells and offer a repository of gene expression data for future research. The development of novel therapeutics will benefit from the ability to determine target expression by Bartonella in relevant microenvironments.
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spelling doaj-art-4f5e7f5b73a24d178d753cc013063eac2025-02-02T12:37:08ZengNature PortfolioCommunications Biology2399-36422025-01-018111610.1038/s42003-025-07535-9Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselaeShiva Kumar Goud Gadila0John R. Caskey1Edward B. Breitschwerdt2Ricardo G. Maggi3Monica E. Embers4Division of Immunology, Tulane National Primate Research Center, Tulane UniversityDepartment of Medicine, Clinical Science Center, University of Wisconsin School of Medicine and Public HealthIntracellular Pathogens Research Laboratory, Department of Clinical Sciences, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State UniversityIntracellular Pathogens Research Laboratory, Department of Clinical Sciences, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State UniversityDivision of Immunology, Tulane National Primate Research Center, Tulane UniversityAbstract The Bartonella genus of bacteria encompasses ubiquitous species, some of which are pathogenic in humans and animals. Bartonella henselae, the causative agent of Cat Scratch disease, is responsible for a large portion of human Bartonella infections. These bacteria can grow outside of cells, replicate in erythrocytes and invade endothelial and monocytic cells. We have previously reported reduced antibiotic susceptibility of intracellular Bartonella. In this study we performed comparative transcriptomic analyses between the extracellular and intracellular B. henselae phenotypes. Overall, specific genes involved in invasion, virulence, extracellular adhesion of type 4 secretion system were downregulated following intracellular invasion of B. henselae. Downregulation included BadA, a well-characterized adhesin molecule, of critical importance for cell invasion. These studies demonstrate the ability to purify Bartonella RNA from infected cells and offer a repository of gene expression data for future research. The development of novel therapeutics will benefit from the ability to determine target expression by Bartonella in relevant microenvironments.https://doi.org/10.1038/s42003-025-07535-9
spellingShingle Shiva Kumar Goud Gadila
John R. Caskey
Edward B. Breitschwerdt
Ricardo G. Maggi
Monica E. Embers
Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae
Communications Biology
title Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae
title_full Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae
title_fullStr Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae
title_full_unstemmed Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae
title_short Comparison of transcriptomic profiles between intracellular and extracellular Bartonella henselae
title_sort comparison of transcriptomic profiles between intracellular and extracellular bartonella henselae
url https://doi.org/10.1038/s42003-025-07535-9
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