NLRP3 inflammasome activation and symptom burden in KRAS-mutated CMML patients is reverted by IL-1 blocking therapy.

Fecha de publicación: Fecha Ahead of Print:

Autores de IIS La Fe

Participantes ajenos a IIS La Fe

  • Hurtado-Navarro L
  • Cuenca-Zamora EJ
  • Zamora L
  • Bellosillo B
  • Soler-Espejo E
  • Martínez-Banaclocha H
  • Hernández-Rivas JM
  • Martínez-Alarcón L
  • Linares-Latorre L
  • García-Ávila S
  • Amat-Martínez P
  • Arnan M
  • Pomares-Marín H
  • Carreño-Tarragona G
  • Chen-Liang TH
  • Herranz MT
  • García-Palenciano C
  • Morales ML
  • Lozano ML
  • Teruel-Montoya R
  • Pelegrín P
  • Ferrer-Marín F

Grupos

Abstract

Chronic myelomonocytic leukemia (CMML) is frequently associated with mutations in the rat sarcoma gene (RAS), leading to worse prognosis. RAS mutations result in active RAS-GTP proteins, favoring myeloid cell proliferation and survival and inducing the NLRP3 inflammasome together with the apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), which promote caspase-1 activation and interleukin (IL)-1ß release. Here, we report, in a cohort of CMML patients with mutations in KRAS, a constitutive activation of the NLRP3 inflammasome in monocytes, evidenced by ASC oligomerization and IL-1ß release, as well as a specific inflammatory cytokine signature. Treatment of a CMML patient with a KRAS(G12D) mutation using the IL-1 receptor blocker anakinra inhibits NLRP3 inflammasome activation, reduces monocyte count, and improves the patient's clinical status, enabling a stem cell transplant. This reveals a basal inflammasome activation in RAS-mutated CMML patients and suggests potential therapeutic applications of NLRP3 and IL-1 blockers.

Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.

Datos de la publicación

ISSN/ISSNe:
2666-3791, 2666-3791

CELL REPORTS MEDICINE  Cell Press

Tipo:
Article
Páginas:
101329-101329
PubMed:
38118408
Factor de Impacto:
5,956 SCImago
Cuartil:
Q1 SCImago

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Keywords

  • CMML; IL-1 blockers; KRAS; NLRP3 blockers; NLRP3 inflammasome; RAS mutations; anakinra; inflammation; myelodysplastic syndromes; myeloproliferative neoplasms

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