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2017 ; 7
(1
): 2914
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gab.com Text
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A Four-Biomarker Blood Signature Discriminates Systemic Inflammation Due to Viral
Infection Versus Other Etiologies
#MMPMID28588308
Sampson DL
; Fox BA
; Yager TD
; Bhide S
; Cermelli S
; McHugh LC
; Seldon TA
; Brandon RA
; Sullivan E
; Zimmerman JJ
; Noursadeghi M
; Brandon RB
Sci Rep
2017[Jun]; 7
(1
): 2914
PMID28588308
show ga
The innate immune system of humans and other mammals responds to
pathogen-associated molecular patterns (PAMPs) that are conserved across broad
classes of infectious agents such as bacteria and viruses. We hypothesized that a
blood-based transcriptional signature could be discovered indicating a host
systemic response to viral infection. Previous work identified host
transcriptional signatures to individual viruses including influenza, respiratory
syncytial virus and dengue, but the generality of these signatures across all
viral infection types has not been established. Based on 44 publicly available
datasets and two clinical studies of our own design, we discovered and validated
a four-gene expression signature in whole blood, indicative of a general host
systemic response to many types of viral infection. The signature's genes are:
Interferon Stimulated Gene 15 (ISG15), Interleukin 16 (IL16),
2',5'-Oligoadenylate Synthetase Like (OASL), and Adhesion G Protein Coupled
Receptor E5 (ADGRE5). In each of 13 validation datasets encompassing human,
macaque, chimpanzee, pig, mouse, rat and all seven Baltimore virus classification
groups, the signature provides statistically significant (p?0.05)
discrimination between viral and non-viral conditions. The signature may have
clinical utility for differentiating host systemic inflammation (SI) due to viral
versus bacterial or non-infectious causes.