Queen’s University to research how COVID-19 damages blood vessels

Coronavirus can also damage blood vessels in the brain and retina, which could lead to stroke and vision loss.

Covid-19 vial and microscope in research lab
Author: Chelsie KealeyPublished 9th Jan 2021

Researchers at Queen’s University Belfast are to examine how Coronavirus damages blood cells.

The Covid-19 virus is thought of as a disease of the lungs, but it can also damage blood vessels elsewhere in the body, including in the brain and retina, causing serious damage leading to stroke and vision loss.

The project is led by Professor Alan Stitt, lead researcher on the study and Dean of Innovation and Impact within the Faculty of Medicine, Health and Life Sciences at QUB and Dr Roger Preston, lead researcher on the study and Senior Lecturer from RCSI School of Pharmacy and Biomolecular Sciences.

New money awarded from Science Foundation Ireland and the Department of Economy will allow them to investigate how and why this damage is caused.

Professor Stitt said: “We are delighted to participate in this North-South research collaboration between Queen’s University and RCSI.

“We know that COVID-19 has a profound impact on the blood vessels of the central nervous system although the precise mechanisms of how this coronavirus causes damage in these organs remains ill-defined.

“This project seeks to decipher the molecular mechanisms that underpin vascular damage in the brain and retina, with a particular focus on the clotting system in these fragile vessels.

“This research will seek to understand why the brain and retina are susceptible to vascular damage in some COVID-19 patients and identify novel therapeutic pathways that can protect against stroke and ischaemic retinopathies.”

The research will examine how differences in endothelial cell-types from different blood vessels could affect how they respond to the virus.

With a particular emphasis on how vessels in the brain and retina become prone to inflammation and promoting blood clots, the study will help to inform treatment strategies to protect blood vessels from Coronavirus, and thereby help to avoid serious symptoms, particularly in the brain and retina.

Dr Preston said: “COVID-19 can damage blood vessels throughout the body to cause serious, life-threatening disease.

“It is also possible that blood vessel damage caused by COVID-19, particularly in the central nervous system, contributes to the chronic symptoms experienced by many patients.

“How COVID-19 causes blood vessel injury is still, however, poorly understood, slowing the development of new treatments.

“To address this, our research team based at RCSI and Queen’s University Belfast will investigate how blood vessel cells are affected by coronavirus infection, with the goal of developing new therapeutic strategies to manage both the acute and long-term consequences of COVID-19.”