Neurologic complications in herpes simplex encephalitis: clinical, immunological and genetic studies.

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Autores de IIS La Fe

  • Maria Guasp Vizcaino

    Autor

  • Andres Gonzalez Molina

    Autor

  • María Angeles Marcos Maeso

    Autor

  • Luís Bataller Alberola

    Autor

  • Mireia Serra Fortuny

    Autor

Participantes ajenos a IIS La Fe

  • Armangue, Thais
  • Olive-Cirera, Gemma
  • Martinez-Hernandez, Eugenia
  • Rodes, Maria
  • Peris-Sempere, Vicente
  • Ruiz, Raquel
  • Palou, Eduard
  • Erro, Maria Elena
  • Corral-Corral, Inigo
  • Planaguma, Jesus
  • Caballero, Eva
  • Vlagea, Alexandru
  • Chen, Jie
  • Bastard, Paul
  • Materna, Marie
  • Marchal, Astrid
  • Abel, Laurent
  • Cobat, Aurelie
  • Alsina, Laia
  • Saiz, Albert
  • Mignot, Emmanuel
  • Vanderver, Adeline
  • Casanova, Jean-Laurent
  • Zhang, Shen-Ying

Grupos

Abstract

Patients with herpes simplex virus (HSV) encephalitis (HSE) often develop neuronal autoantibody-associated encephalitis (AE) post-infection. Risk factors of AE are unknown. We tested the hypotheses that predisposition for AE post-HSE may be involved, including genetic variants at specific loci, HLA haplotypes, or the blood innate immune response against HSV, including type I interferon (IFN) immunity. Patients of all ages with HSE diagnosed between January 1st, 2014 and December 31st, 2021 were included in one of two cohorts depending on whether the recruitment was at HSE onset (Spanish Cohort A) or by the time of new neurological manifestations (international Cohort B). Patients were assessed for the type of neurologic syndromes; HLA haplotypes; blood type I-IFN signature (RNA quantification of 6 or 28 IFN- response genes [IRG]), and toll-like receptor (TLR3)-type I IFN-related gene mutations. Overall, 190 patients (52% male) were recruited, 93 in Cohort A and 97 in B. 39/93(42%) patients from Cohort A developed neuronal autoantibodies, and 21 (54%) of them developed AE. Three syndromes (choreoathetosis, anti-NMDAR-like encephalitis, and behavioral-psychiatric) showed a high (=95% cases) association with neuronal autoantibodies. Patients who developed AE post-HSE were less likely to carry the allele HLA-A*02 (4/21, 19%) than those who did not develop AE (42/65, 65%, p = 0.0003) or the Spanish general population (2005/4335, 46%, p = 0.0145). Blood IFN signatures using 6 or 28 IRG were positive in 19/21 (91%) and 18/21 (86%) patients at HSE onset, and rapidly decreased during follow-up. At day 21 after HSE onset, patients who later developed AE had higher median IFN signature compared with those who did not develop AE (median Zs-6-IRG 1.4 [0.6; 2.0] vs 0.2 [-0.4; 0.8], p = 0.03). However, a very high median Zs-6-IRG (>4) or persistently increased IFN signature associated with uncontrolled viral infection. Whole exome sequencing showed that the percentage of TLR3-IFN-related mutations in patients who developed AE was not different from those who did not develop AE (3/37[8%] vs 2/57[4%], p = 0.379). Multivariate logistic regression showed that a moderate increase of the blood IFN signature at day 21 (median Zs-6-IRG >1.5 but <4) was the most important predictor of AE post-HSE (OR 34.8 IQR [1.7-691.9]). Altogether, these findings show that most AE post-HSE manifest with 3 distinct syndromes, and HLA-A*02, but not TLR3-IFN-related mutations, confer protection from developing AE. In addition to neuronal autoantibodies, the blood IFN signature in the context of HSE may be potentially useful for the diagnosis and monitoring of HSE complications.

© The Author(s) 2023. Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

Datos de la publicación

ISSN/ISSNe:
0006-8950, 1460-2156

BRAIN  OXFORD UNIV PRESS

Tipo:
Article
Páginas:
4306-4319
PubMed:
37453099
Enlace a otro recurso:
www.scopus.com
Factor de Impacto:
4,573 SCImago
Cuartil:
Q1 SCImago

Citas Recibidas en Web of Science: 62

Citas Recibidas en Scopus: 55

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Keywords

  • NMDAR; autoimmune encephalitis; interferon signature; nanostring; transcriptomics; viral encephalitis

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