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Título: | Mytilus galloprovincialis releases immunologically functional haemocytes to the intervalvar space in response to tissue injury and infection |
Autor: | Panebianco, Antonella; Rey-Campos, Magalí CSIC ORCID; Romero Jódar, Alejandro CSIC ORCID; Diz, Ángel P.; Novoa, Beatriz CSIC ORCID; Figueras Huerta, Antonio CSIC ORCID | Palabras clave: | Mussels Haemocytes Intervalvar liquid Expression Vibrio splendidus Injuries |
Fecha de publicación: | 2023 | Editor: | Elsevier | Citación: | Fish and Shellfish Immunology 138: 108806 (2023) | Resumen: | Haemocytes of Mytilus galloprovincialis represent the main component of the internal self-defence system. Although haemocytes from haemolymph are usually studied to analyse these animals’ immune response, the presence of haemocytes in the intervalvar liquid, which is essentially sea water, led us to characterize them. Several functional (ROS production, phagocytosis, gene expression, travel velocity and distance) and morphological (area, size and granularity) assays were performed by applying different stimuli to the mussels (waterborne infection, shell injury and their combination). Our results revealed that intervalvar liquid haemocytes share common characteristics with haemolymph haemocytes (for instance, the cell morphology and the cell population structure divided in three main groups) but also show significant differences in size (usually smaller in the intervalvar liquid), mobility (commonly faster in the intervalvar liquid), ROS production (higher in non-stimulated intervalvar liquid cells) and gene expression (IL17, Myd88 and CathL are over expressed in liquid intervalvar cells compared to haemolymph cells). Moreover, differences were observed when mussels were subjected to the mentioned treatments. These free intervalvar haemocytes could constitute the first line of defence as external sentinels extending the immunological alert system outside of the mussel body | Descripción: | 10 pages, 7 figures, 1 table.-- Under a Creative Commons license | Versión del editor: | https://doi.org/10.1016/j.fsi.2023.108806 | URI: | http://hdl.handle.net/10261/309376 | DOI: | 10.1016/j.fsi.2023.108806 | ISSN: | 1050-4648 |
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