Adults with Septic Shock and Extreme Hyperferritinemia Exhibit Pathogenic Immune Variation

Overview

Journal Genes Immun

Date 2018 Jul 7

PMID 29977033

Citations 18

Authors

Kate F Kernan

Lina Ghaloul-Gonzalez

Bita Shakoory

John A Kellum

Derek C Angus

Joseph A Carcillo

Affiliations

Soon will be listed here.

Abstract

Post-hoc subgroup analysis of the negative trial of interleukin-1β receptor antagonist (IL1RA) for septic shock suggested that patients with features of macrophage activation syndrome (MAS) experienced a 50% relative risk reduction for mortality with treatment. Here we seek a genetic basis for this differential response. From 1341 patients enrolled in the ProCESS trial of early goal directed therapy for septic shock, we selected 6 patients with MAS features and the highest ferritin, for whole exome sequencing (mean 24,030.7 ηg/ml, ±SEM 7,411.1). In total 11 rare (minor allele frequency <5%) pathogenic or likely pathogenic variants causal for the monogenic disorders of Familial Hemophagocytic Lymphohistiocytosis, atypical Hemolytic Uremic Syndrome, Familial Mediterranean Fever, and Cryopyrin-associated Periodic Fever were identified. In these conditions, seven of the identified variants are currently targeted with IL1RA and four with anti-C5 antibody. Gene-targeted precision medicine may benefit this subgroup of patients with septic shock and pathogenic immune variation.

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