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An immune dysfunction score for stratification of patients with acute infection based on whole-blood gene expression

Lookup NU author(s): Dr Simon Baudouin, Helen Walsh

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Abstract

Copyright © 2022 The Authors, some rights reserved. Dysregulated host responses to infection can lead to organ dysfunction and sepsis, causing millions of global deaths each year. To alleviate this burden, improved prognostication and biomarkers of response are urgently needed. We investigated the use of whole-blood transcriptomics for stratification of patients with severe infection by integrating data from 3149 samples from patients with sepsis due to community-acquired pneumonia or fecal peritonitis admitted to intensive care and healthy individuals into a gene expression reference map. We used this map to derive a quantitative sepsis response signature (SRSq) score reflective of immune dysfunction and predictive of clinical outcomes, which can be estimated using a 7- or 12-gene signature. Last, we built a machine learning framework, SepstratifieR, to deploy SRSq in adult and pediatric bacterial and viral sepsis, H1N1 influenza, and COVID-19, demonstrating clinically relevant stratification across diseases and revealing some of the physiological alterations linking immune dysregulation to mortality. Our method enables early identification of individuals with dysfunctional immune profiles, bringing us closer to precision medicine in infection.

Publication metadata

Author(s): Cano-Gamez E, Burnham KL, Goh C, Allcock A, Malick ZH, Overend L, Kwok A, Smith DA, Peters-Sengers H, Antclife D, McKechnie S, Scicluna BP, van der Poll T, Gordon AC, Hinds CJ, Davenport EE, Knight JC, Webster N, Galley H, Taylor J, Hall S, Addison J, Roughton S, Tennant H, Guleri A, Waddington N, Arawwawala D, Durcan J, Short A, Swan K, Williams S, Smolen S, Mitchell-Inwang C, Gordon T, Errington E, Templeton M, Venatesh P, Ward G, McCauley M, Baudouin S, Higham C, Soar J, Grier S, Hall E, Brett S, Kitson D, Wilson R, Mountford L, Moreno J, Hall P, Hewlett J, Garrard C, Millo J, Young D, Hutton P, Parsons P, Smiths A, Faras-Arraya R, Raymode P, Thompson J, Bowrey S, Kazembe S, Rich N, Andreou P, Hales D, Roberts E, Fletcher S, Rosbergen M, Glister G, Cuesta JM, Bion J, Millar J, Perry EJ, Willis H, Mitchell N, Ruel S, Carrera R, Wilde J, Nilson A, Lees S, Kapila A, Jacques N, Atkinson J, Brown A, Prowse H, Krige A, Bland M, Bullock L, Harrison D, Mills G, Humphreys J, Armitage K, Laha S, Baldwin J, Walsh A, Doherty N, Drage S, de Gordoa LO, Lowes S, Walsh H, Calder V, Swan C, Payne H, Higgins D, Andrews S, Mappleback S, Garrard C, Watson D, McLees E, Purdy A, Stotz M, Ochelli-Okpue A, Bonner S, Whitehead I, Hugil K, Goodridge V, Cawthor L, Kuper M, Pahary S, Bellingan G, Marshall R, Montgomery H, Ryu JH, Bercades G, Boluda S, Bentley A, Mccalman K, Jeferies F, Maugeri N, Radhakrishnan J, Mi Y

Publication type: Article

Publication status: Published

Journal: Science Translational Medicine

Year: 2022

Volume: 14

Issue: 669

Online publication date: 02/11/2022

Acceptance date: 16/09/2022

ISSN (print): 1946-6234

ISSN (electronic): 1946-6242

Publisher: American Association for the Advancement of Science

URL: https://doi.org/10.1126/scitranslmed.abq4433

DOI: 10.1126/scitranslmed.abq4433

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