Sepsis in Oncology Patients
The overall objective of this prospective observational study is to address the
significant knowledge gap that exists around the impact of immune dysfunction on the
development and survival from sepsis in patients with cancer. This proposal primarily
focuses on establishing the transcriptomic immune profiles of sepsis patients with a
background of cancer. This analysis will be complemented with in vitro functional
analyses, and in addition will commence a collection of genome-wide data, including a
focus on predicting white cell number and function in health. Uniquely, the investigators
propose to establish a robust link between these analyses: transcriptomic, in vitro, and
genome-wide, to enable them to comprehensively explore septic oncology patient 'immune
phenotypes' and effectively identify novel exploitable therapeutic pathways.
To this end, this project will collect, analyse and/or sequence DNA, RNA, leukocytes and
soluble materials from a cohort of oncology patients presenting to intensive care with
sepsis. This cohort will include all-comers with an oncological background but will also
focus on two core groups at high risk of sepsis where baseline samples can also be sought
prior to major immunosuppressive events in the cancer pathway. These are:
1. Oesophageal/upper gastrointestinal (GI) cancer patients prior to systemic anticancer
therapy initiation or surgery
2. Haematological malignancy patients prior to stem cell transplantation.
These sub-cohorts will provide a previously unexplored unique insight into the role of
pre-existing patient transcriptomic phenotypes.