Distinct Gene Expression Signatures Characterize Strong Clinical Responders Versus Nonresponders to Canakinumab in Children With Systemic Juvenile Idiopathic Arthritis

© 2021, American College of Rheumatology..

OBJECTIVE: Canakinumab is a human anti-interleukin-1β (anti-IL-1β) blocking agent that effectively neutralizes IL-1β-mediated signaling for treatment of systemic juvenile idiopathic arthritis (JIA). While many patients have dramatic clinical response to IL-1 blockade, approximately one-third fail to respond, but there are currently no validated clinical or immunologic predictors of response. We undertook this study to characterize distinct gene signatures for treatment response and nonresponse to canakinumab in systemic JIA patients.

METHODS: We performed a secondary analysis of whole-blood gene expression microarrays using blood samples obtained from healthy controls and systemic JIA patients at baseline and on day 3 after canakinumab treatment (GEO accession no. GSE80060). Patients were considered strong clinical responders if they met the ACR90 response (exhibited ≥90% improvement in the American College of Rheumatology [ACR] JIA response criteria; nonresponders were those who met ACR30 [exhibiting ≤30% improvement in the ACR JIA response criteria]). A random-effects model with patient identity as the random variable was used for differential expression analysis.

RESULTS: We identified a distinct gene expression signature in patients with a strong clinical response to canakinumab treatment as compared to nonresponders, mediated by up-regulation of neutrophil- and IL-1-associated genes and characterized by increasing divergence from control transcriptomes with increasing clinical response. We also identified a signature including up-regulated CD163 expression that was associated with canakinumab nonresponse. Intriguingly, canakinumab treatment induced either up- or down-regulation of type I interferon (IFN) genes, independent of clinical response.

CONCLUSION: Here, we identify a gene signature in systemic JIA patients prior to receiving treatment that distinguishes strong responders to canakinumab from nonresponders. Further prospective studies are needed to assess the utility of these insights for treatment decisions in systemic JIA and to track the association of up-regulated type I IFN signatures with systemic JIA complications.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:73

Enthalten in:

Arthritis & rheumatology (Hoboken, N.J.) - 73(2021), 7 vom: 05. Juli, Seite 1334-1340

Sprache:

Englisch

Beteiligte Personen:

Verweyen, Emely L [VerfasserIn]
Pickering, Alex [VerfasserIn]
Grom, Alexei A [VerfasserIn]
Schulert, Grant S [VerfasserIn]

Links:

Volltext

Themen:

37CQ2C7X93
AIM2 protein, human
Antibodies, Monoclonal, Humanized
Antigens, CD
Antigens, Differentiation, Myelomonocytic
CARD Signaling Adaptor Proteins
CASP5 protein, human
CD163 antigen
CD177 protein, human
Calcium-Binding Proteins
Canakinumab
Caspases
Chemokine CXCL1
Clinical Trial, Phase III
DNA-Binding Proteins
EC 3.4.22.-
GPI-Linked Proteins
Glycoproteins
IL1B protein, human
IL1R1 protein, human
IL1RAP protein, human
IL1RN protein, human
Interleukin 1 Receptor Antagonist Protein
Interleukin-1 Receptor Accessory Protein
Interleukin-1beta
Isoantigens
Journal Article
LRG1 protein, human
NLRC4 protein, human
Randomized Controlled Trial
Receptors, Cell Surface
Receptors, Interleukin-1 Type I
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
TNF protein, human
Toll-Like Receptors
Tumor Necrosis Factor-alpha

Anmerkungen:

Date Completed 09.08.2021

Date Revised 16.07.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/art.41640

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM320156931