Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus

Many bacterial species function as both commensals and pathogens; we used this dual nature to develop a high-throughput molecular epidemiological approach to identifying bacterial virulence genes. We applied our approach to Group B Streptococcus (GBS). Three representative commensal and one invas...

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Main Authors: Lixin Zhang, Usha Reddi, Usha Srinivasan, Sheng Li, Stephanie M. Borchardt, Parvathy Pillai, Puja Mehta, Anne N. Styka, Joan DeBusscher, Carl F. Marrs, Betsy Foxman
Format: Article
Language:English
Published: Wiley 2008-01-01
Series:Interdisciplinary Perspectives on Infectious Diseases
Online Access:http://dx.doi.org/10.1155/2008/314762
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author Lixin Zhang
Usha Reddi
Usha Srinivasan
Sheng Li
Stephanie M. Borchardt
Parvathy Pillai
Puja Mehta
Anne N. Styka
Joan DeBusscher
Carl F. Marrs
Betsy Foxman
author_facet Lixin Zhang
Usha Reddi
Usha Srinivasan
Sheng Li
Stephanie M. Borchardt
Parvathy Pillai
Puja Mehta
Anne N. Styka
Joan DeBusscher
Carl F. Marrs
Betsy Foxman
author_sort Lixin Zhang
collection DOAJ
description Many bacterial species function as both commensals and pathogens; we used this dual nature to develop a high-throughput molecular epidemiological approach to identifying bacterial virulence genes. We applied our approach to Group B Streptococcus (GBS). Three representative commensal and one invasive GBS isolates were selected as tester strains from a population-based collection. We used microarray-based comparative genomic hybridization to identify open reading frames (ORFs) present in two sequenced invasive strains, but absent or divergent in tester strains. We screened 23 variable ORFs against 949 GBS isolates using a GBS Library on a Slide (LOS) microarray platform. Four ORFs occurred more frequently in invasive than commensal isolates, and one appeared more frequently in commensal isolates. Comparative hybridization using an oligonucleotide microarray, combined with epidemiologic screening using the LOS microarray platform, enabled rapid identification of bacterial genes potentially associated with pathogenicity.
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issn 1687-708X
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publishDate 2008-01-01
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record_format Article
series Interdisciplinary Perspectives on Infectious Diseases
spelling doaj-art-cce5746edbe34278b1d163120c1bcc5a2025-02-03T01:30:59ZengWileyInterdisciplinary Perspectives on Infectious Diseases1687-708X1687-70982008-01-01200810.1155/2008/314762314762Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B StreptococcusLixin Zhang0Usha Reddi1Usha Srinivasan2Sheng Li3Stephanie M. Borchardt4Parvathy Pillai5Puja Mehta6Anne N. Styka7Joan DeBusscher8Carl F. Marrs9Betsy Foxman10Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USAProgram in Bioinformatics, Eastern Michigan University, Ypsilanti, MI 48197, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USADepartment of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109, USAMany bacterial species function as both commensals and pathogens; we used this dual nature to develop a high-throughput molecular epidemiological approach to identifying bacterial virulence genes. We applied our approach to Group B Streptococcus (GBS). Three representative commensal and one invasive GBS isolates were selected as tester strains from a population-based collection. We used microarray-based comparative genomic hybridization to identify open reading frames (ORFs) present in two sequenced invasive strains, but absent or divergent in tester strains. We screened 23 variable ORFs against 949 GBS isolates using a GBS Library on a Slide (LOS) microarray platform. Four ORFs occurred more frequently in invasive than commensal isolates, and one appeared more frequently in commensal isolates. Comparative hybridization using an oligonucleotide microarray, combined with epidemiologic screening using the LOS microarray platform, enabled rapid identification of bacterial genes potentially associated with pathogenicity.http://dx.doi.org/10.1155/2008/314762
spellingShingle Lixin Zhang
Usha Reddi
Usha Srinivasan
Sheng Li
Stephanie M. Borchardt
Parvathy Pillai
Puja Mehta
Anne N. Styka
Joan DeBusscher
Carl F. Marrs
Betsy Foxman
Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus
Interdisciplinary Perspectives on Infectious Diseases
title Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus
title_full Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus
title_fullStr Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus
title_full_unstemmed Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus
title_short Combining Microarray Technology and Molecular Epidemiology to Identify Genes Associated with Invasive Group B Streptococcus
title_sort combining microarray technology and molecular epidemiology to identify genes associated with invasive group b streptococcus
url http://dx.doi.org/10.1155/2008/314762
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