Dome1-JAK-STAT signaling between parasite and host integrates vector immunity and development.
Science
; 379(6628): eabl3837, 2023 01 13.
Article
em En
| MEDLINE
| ID: mdl-36634189
ABSTRACT
Ancestral signaling pathways serve critical roles in metazoan development, physiology, and immunity. We report an evolutionary interspecies communication pathway involving a central Ixodes scapularis tick receptor termed Dome1, which acquired a mammalian cytokine receptor motif exhibiting high affinity for interferon-gamma (IFN-γ). Host-derived IFN-γ facilitates Dome1-mediated activation of the Ixodes JAK-STAT pathway. This accelerates tick blood meal acquisition and development while upregulating antimicrobial components. The Dome1-JAK-STAT pathway, which exists in most Ixodid tick genomes, regulates the regeneration and proliferation of gut cells-including stem cells-and dictates metamorphosis through the Hedgehog and Notch-Delta networks, ultimately affecting Ixodes vectorial competence. We highlight the evolutionary dependence of I. scapularis on mammalian hosts through cross-species signaling mechanisms that dually influence arthropod immunity and development.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vetores Aracnídeos
/
Receptores de Citocinas
/
Ixodes
/
Fatores de Transcrição STAT
/
Janus Quinases
/
Interações Hospedeiro-Parasita
Limite:
Animals
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article