Development and Application of a Novel Peptide Nucleic Acid Probe for the Specific Detection of Helicobacter pylori in Gastric Biopsy Specimens

Author:

Guimarães N.12,Azevedo N. F.13,Figueiredo C.24,Keevil C. W.3,Vieira M. J.1

Affiliation:

1. IBB (Institute for Biotechnology and Bioengineering), Centre for Biological Engineering, Universidade do Minho, Campus de Gualtar 4710-057, Braga

2. IPATIMUP (Institute of Molecular Pathology and Immunology of the University of Porto)

3. School of Biological Sciences, University of Southampton, Southampton, United Kingdom

4. Medical Faculty of Porto, Porto, Portugal

Abstract

ABSTRACT In this work, a fluorescence in situ hybridization (FISH) method for the rapid detection of Helicobacter pylori using a novel peptide nucleic acid (PNA) probe is reported. Laboratory testing with several different bacterial species, including other Helicobacter spp., has shown that this probe is highly specific for H. pylori strains. In addition, the PNA FISH method has been successfully adapted for detection of the pathogen in paraffin-embedded gastric biopsy specimens.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Reference34 articles.

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2. New Screening Software Shows that Most Recent Large 16S rRNA Gene Clone Libraries Contain Chimeras

3. Ashelford, K. E., A. J. Weightman, and J. C. Fry. 2002. PRIMROSE: a computer program for generating and estimating the phylogenetic range of 16S rRNA oligonucleotide probes and primers in conjunction with the RDP-II database. Nucleic Acids Res.30:3481-3489.

4. Azevedo, N. F., M. J. Vieira, and C. W. Keevil. 2003. Development of peptide nucleic acid probes to detect Helicobacter pylori in diverse species potable water biofilms, p. 105-112. In A. McBain, D. Allison, M. Brading, A. Rickard, J. Verran, and J. Walker (ed.), Biofilm communities: order from chaos? BioLine, Cardiff, United Kingdom.

5. Azevedo, N. F., M. J. Vieira, and C. W. Keevil. 2003. Establishment of a continuous model system to study Helicobacter pylori survival in potable water biofilms. Water Sci. Technol.47:155-160.

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