Specific In Situ Hybridization of Haemobartonella felis with a DNA Probe and Tyramide Signal Amplification
Open Access
- 1 January 2000
- journal article
- research article
- Published by SAGE Publications in Veterinary Pathology
- Vol. 37 (1), 47-53
- https://doi.org/10.1354/vp.37-1-47
Abstract
Haemobartonella felis is an epierythrocytic bacterium suspected to be the causative agent of feline infectious anemia. Previous studies with a polymerase chain reaction assay have identified a mycoplasmal 16S rRNA gene sequence that coincides with clinical disease and the presence of organisms in the blood. Tissues from a cat experimentally infected with H. felis were used for in situ hybridization studies to physically link this 16S rRNA gene to the organisms on the red cells. A biotin-labeled probe was used in conjunction with tyramide signal amplification to visualize the hybridization signal. This study clearly demonstrates a specific hybridization signal on the red cells in the tissues of the H. felis-infected cat. This in situ hybridization study is the final step in fulfilling the molecular guidelines for disease causation and proves that H. felis, a mycoplasmal organism, is the causative agent of feline infectious anemia.Keywords
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