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Study reveals how Lyme disease spreads through the body
Lyme disease bacteria
Lyme disease bacteria (Borrelia burgdorferi) spreads through the body by clinging to the lining of blood vessels.

Cell-imaging approach offers new insights

Research by the University of Toronto has revealed how Lyme disease bacteria spreads through the body.

Published in the journal Cell Reports, the study found that a special adhesion protein called BBK32 helps Lyme disease bacteria (Borrelia burgdorferi) cling onto and move along the inside lining of blood vessels.  

"It's likely that this property helps the bacteria get to sites where they might be able to persist longer, and this property might therefore make it harder to treat infections caused by these bacteria," explains first author Rhodaba Ebady.

In the study, the team developed a live-imaging-cell based system that provides both molecular and biomechanical insights into how bacteria travels throughout the body.

Using genetically modified strains of Borrelia burgdorferi, the team watched through a microscope as the bacteria - marked with fluorescent green protein - moved across cells in real time.

Their findings suggest that drugs targeting BBK32 could help to prevent or slow down the spread of Lyme disease bacteria to joints, the heart and nervous system.

This would eliminate or reduce the severity of symptoms like heart inflammation, arthritis, facial paralysis and nerve pain, the researchers say.

Furthermore, because BBK32-like proteins are produced by pathogens like Staphylococcus aureus and Streptococcus pyogenes, the researchers believe their findings may also be relevant to other serious conditions, like pneumonia and inflammation affecting the heart.

Looking ahead, the team hope to identify endothelial receptors that BBK32 interact with, assess the biomechanical role of bacterial flagella in vascular interactions, and try to determine how bacteria target specific endothelia associated with different tissues.

More broadly, the team hope their cell-imaging approach could be used to study how other pathogens spread throughout the body.

Image (C) Jamice Haney Carr, Claudia Molins, USCDCP 

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COVID-19 resources for veterinary professionals

News Story 1
 RCVS Knowledge, the charity partner of the Royal College of Veterinary Surgeons (RCVS), has published a page of COVID-19 coronavirus resources for veterinary professionals across the industry.

The resource, which can be found here, includes veterinary advice, updates, research and evidence regarding the virus. The advice encompasses information to help veterinary professionals respond to questions from their clients and the BCVA's latest guidance for farm animal vets.

Veterinary professionals are urged to share the resource on social media and let RCVS Knowledge know of any additions. 

Click here for more...
News Shorts
BVA senior vice president appointed chair of FVE working group

Senior vice president of the BVA Dr Simon Doherty has been appointed as chair of the Food Safety & Sustainability working group of the Federation of Veterinarians in Europe (FVE).

Dr Doherty has 20 years' experience in farm animal and equine veterinary practice, industry and academia. He has been working as a senior lecturer at the Queen's University Belfast Institute for Global Food Security since 2018 and is a trustee of Send a Cow and the Animal Welfare Foundation.

The Food Safety & Sustainability working group will support FVE in all matters related to food safety, food security and sustainable livestock systems. It will also assist FVE in taking the most effective policies at EU level.