The acute inflammatory potential of particles from the Echinococcus granulosus laminated layer is moderated by its calcium inositol Hexakisphosphate component.

Dublin Core

Title

The acute inflammatory potential of particles from the Echinococcus granulosus laminated layer is moderated by its calcium inositol Hexakisphosphate component.

Subject

EQUINOCOCOSIS QUISTICA
ECHINOCOCCUS GRANULOSUS
INFLAMACIÓN
MUCINAS
INOSITOL
BIBLIOGRAFIA NACIONAL QUIMICA
2024

Abstract

Cystic echinococcosis is caused by the tissue-dwelling larva (hydatid) of Echinococcus granulosus sensu lato. A salient feature is that this larva is protected by the acellular laminated layer (LL). As the parasite grows, the LL sheds abundant particles that can accumulate in the parasite's vicinity. The potential of LL particles to induce inflammation in vivo has not been specifically analysed. It is not known how each of its two major components, namely highly glycosylated mucins and calcium inositol hexakisphosphate (InsP6) deposits, impacts inflammation induced by the LL as a whole. In this work, we show that LL particles injected intraperitoneally cause infiltration of eosinophils, neutrophils and monocytes/macrophages as well as the disappearance of resident (large peritoneal) macrophages. Strikingly, the absence of calcium InsP6 enhanced the recruitment of all the inflammatory cell types analysed. In contrast, oxidation of the mucin carbohydrates caused decreased recruitment of neutrophils. The carbohydrate-oxidised particles caused cell influx nonetheless, which may be explained by possible receptor-independent effects of LL particles on innate immune cells, as suggested by previous works from our group. In summary, LL particles can induce acute inflammatory cell recruitment partly dependent on its mucin glycans, and this recruitment is attenuated by the calcium InsP6 component.

Creator

Grezzi, Leticia
González, Carlos
Díaz, Alvaro
Casaravilla, Cecilia

Source

Parasite Immunology v. 46, n° 5, 2024. -- e13040

Publisher

Wiley

Date

2024

Rights

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Format

PDF

Extent

6 p.

Language

Inglés

Type

Artículo

Identifier

10.1111/pim.13040

Document Item Type Metadata

Original Format

PDF
Date Added
October 10, 2024
Collection
Bibliografía Nacional Química
Item Type
Document
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Citation
Grezzi, Leticia et al., “The acute inflammatory potential of particles from the Echinococcus granulosus laminated layer is moderated by its calcium inositol Hexakisphosphate component.,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed November 17, 2025, https://riquim.fq.edu.uy/items/show/6838.