Barts C4TS spring summer 2017 newsletter

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C4TS Newsletter www.c4ts.qmul.ac.uk Spring/Summer 2017 Issue 13 Welcome to the C4TS Spring/Summer 2017 newsletter. In this edition, we outline our discoveries about the widespread inflammatory response of the body’s immune system that occurs after severe trauma. Our analysis of the ‘genomic storm’ in the hyperacute phase sheds more light on the little understood problem of Multiple Organ Dysfunction Syndrome posttrauma which can be devastating for patients. We provide an update on our CRYOSTAT-2 Randomised Control Trial and an extract from Professor Brohi’s PLOS think-piece about the future of trauma research. Finally, Barts Charity has launched a major appeal to increase funding for trauma research with support from high profile rapper Professor Green.

The (C4TS Lead)

Professor Karim Brohi

Immune Response and Multiple Organ Dysfunction Background Multiple Organ Dysfunction Syndrome (MODS) is the failure of several organs (including lung, heart, kidney and liver), which contributes to the deaths and morbidity of many critically injured patients who survive their initial physical insult. It is a poorly understood condition with no proven therapies.

patients with minor injuries, and healthy volunteers.

by Professor Karim Brohi (C4TS Lead)

Out of 29,385 immune cell genes, we identified only 1,239 that were different between critical and control patients immediately after injury. However, by 24 hours after injury, this response had grown into a widespread immune reaction involving a ‘genomic storm’ of 6,294 genes.

Looking at the genes more closely, the team found that certain white blood cells, including ‘natural killer’ cells and ‘neutrophils’, emerged as potentially central to the immediate response to critical injury, while others, such as T-cells and B-cells, were less important.

A new C4TS study has found that testing blood samples within the first two hours of injury (the ‘hyperacute window’) could help predict which critically injured patients are more likely to develop multiple organ failure.

The study Our team studied blood samples from 70 critically injured patients, which were taken immediately on arrival in the resuscitation room (within two hours of injury). The team compared these samples with blood samples taken at 24 hours and 72 hours after injury, from

Centre for Trauma Sciences

Newsletter Spring-Summer 2017

Left: Cluster analysis of differentially expressed genes in MODS versus NoMODs patients in the hyperacute window.

When comparing the immune cell genes expressed in patients who later developed MODS to those who did not, most differences were seen immediately after injury.

Implications The first minutes or hours after a traumatic injury are a key window where a patient’s immune response may set the trajectory for whether they develop organ failure. If we can understand the mechanisms that lead to poor outcomes, we may be able to help bring dramatic improvements through better diagnostics and therapeutics. Read the full article here. 1


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Barts C4TS spring summer 2017 newsletter by Centre for Trauma Sciences - Issuu