A simple method for the production of bacterial controls for immunohistochemistry and fluorescent in situ hybridization.

Abstract:

:Immunohistochemical and fluorescent in situ hybridization (FISH) assays are useful diagnostic methods for the identification of bacteria on formalin fixed paraffin embedded histological sections. To validate an anti-bacterial antibody or an oligonucleotide probe and to ensure fidelity during subsequent analyses, suitable positive and negative controls are necessary. Suspensions of fixed bacteria are often used, but ideally, these controls should be fixed, embedded and processed in the same way of tissue samples under analysis. Herein, we describe a simple method for the production of bacterial histological control samples: the sandwich. The sandwich is composed of two external layers of equine lung parenchyma and a central layer of the target bacterium. We prepared sandwiches containing Escherichia coli, Campylobacter jejuni, and Arcanobacterium pyogenes and tested them with appropriate antibodies and Eub338 FISH probe. The sandwich is an effective and simple method to prepare bacterial histological controls fixed and processed in the same way as the diagnostic tissues.

journal_name

J Mol Histol

authors

Recordati C,Radaelli E,Simpson KW,Scanziani E

doi

10.1007/s10735-008-9173-2

subject

Has Abstract

pub_date

2008-08-01 00:00:00

pages

459-62

issue

4

eissn

1567-2379

issn

1567-2387

journal_volume

39

pub_type

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