Immunology of a unique biological structure: the Echinococcus laminated layer
Protein & Cell
; (12): 87-104, 2023.
Artículo
en Inglés
| WPRIM (Pacífico Occidental)
| ID: wpr-971615
Biblioteca responsable:
WPRO
ABSTRACT
The larval stages of the cestode parasites belonging to the genus Echinococcus grow within internal organs of humans and a range of animal species. The resulting diseases, collectively termed echinococcoses, include major neglected tropical diseases of humans and livestock. Echinococcus larvae are outwardly protected by the laminated layer (LL), an acellular structure that is unique to this genus. The LL is based on a fibrillar meshwork made up of mucins, which are decorated by galactose-rich O-glycans. In addition, in the species cluster termed E. granulosus sensu lato, the LL features nano-deposits of the calcium salt of myo-inositol hexakisphosphate (Insp6). The main purpose of our article is to update the immunobiology of the LL. Major recent advances in this area are (i) the demonstration of LL "debris" at the infection site and draining lymph nodes, (ii) the characterization of the decoy activity of calcium Insp6 with respect to complement, (iii) the evidence that the LL mucin carbohydrates interact specifically with a lectin receptor expressed in Kupffer cells (Clec4F), and (iv) the characterization of what appear to be receptor-independent effects of LL particles on dendritic cells and macrophages. Much information is missing on the immunology of this intriguing structure we discuss gaps in knowledge and propose possible avenues for research.
Texto completo:
Disponible
Contexto en salud:
Enfermedades Desatendidas
Problema de salud:
Enfermedades Desatendidas
/
Zoonosis
Base de datos:
WPRIM (Pacífico Occidental)
Asunto principal:
Calcio
/
Echinococcus granulosus
/
Equinococosis
/
Echinococcus
/
Mucinas
Límite:
Animales
Idioma:
Inglés
Revista:
Protein & Cell
Año:
2023
Tipo del documento:
Artículo