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Studying how exosomes help blood vessels to self-repair

Professor Catherine Shanahan (lead researcher)

King's College London

Start date: 01 August 2017 (Duration 1 year, 6 months)

KLF4 regulates VSMC migration and proliferation via exosomes

Dr Alexander Kapustin and his team at King’s College London are exploring how to boost the body’s natural ability to heal itself. Blood vessels have an in-built repair mechanism, in which cells called vascular smooth muscle cells (VSMCs) in the vessel wall move and multiply to heal the injury site. These researchers are studying this process and believe that tiny packets of chemicals – called exosomes – released from VSMCs, could be key. Dr Kapustin has discovered that a molecule called KLF4 kicks off a process to increase the release of exosomes from VSMCs. He believes that this helps the VSMCs to change shape, move and re-establish themselves in a new position, during blood vessel repair. In this project he’ll be testing this theory with detailed studies in mice, looking at how KLF4 exerts its effects and how exosomes help VSMCs to carry out repair. By uncovering why and how VSMCs produce exosomes, we may be able to find a way to modify this process – perhaps by targeting KLF4. In the future, therapies that boost blood vessel repair could help to limit the build-up of fatty plaques in coronary arteries, and prevent blockages that cause heart attacks.

Project details

Grant amount £142,001
Grant type Project Grants
Application type Project Grant
Start Date 01 August 2017
Duration 1 year, 6 months
Reference PG/17/37/33023
Status In Progress
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