Host defense mechanisms of cephalopods

Ford, Larisa A.

doi:10.1016/0959-8030(92)90054-2

Cited by 41 publications

(25 citation statements)

References 28 publications

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“…In view of the turnover of the respiratory pigment, these findings indicate that hemocytes are not involved in the general hemocyanin metabolism. Additionally, they confirm that in coleoid cephalopods the adhesive hemocytes within the branchial heart tissue are a component of the cellular defense and detoxification system (Bayne 1973;Meister 1977;Ford 1992;Budelmann et al 1997;Malham et al 1997;Beuerlein et al 2002).…”

Section: In Situ Injection Of Fluorescein-labeled Sepia Hemocyaninmentioning

confidence: 81%

Hemocyanin and the branchial heart complex of Sepia officinalis : are the hemocytes involved in hemocyanin metabolism of coleoid cephalopods?

Beuerlein

Ruth

Westermann

et al. 2002

Cell and Tissue Research

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Cytobiological experiments using isotopic- and cytochemical-labeled Sepia hemocyanin as well as immunocytochemical localization of the respiratory pigment were carried out to investigate the function of the hemocytes in hemocyanin metabolism of the common cuttlefish Sepia officinalis. For comparison, the rhogocytes (ovoid cells) of the branchial heart complex were included in this study. Hemocyanin molecules were immunocytochemically detected in the lysosomal compartment of the rhogocytes and, at lower levels, in adhesive and circulating hemocytes. (125)I-labeled Sepia hemocyanin was taken up by the rhogocytes only, whereas gold- and/or fluorescein-labeled Sepia hemocyanin was solely taken up by the adhesive and the circulating hemocytes, even though the level of uptake is different. There are also differences in the uptake of pure gold particles and/or fluorescein between rhogocytes and hemocytes. These findings give evidence that circulating and adhesive hemocytes of the branchial heart complex are not involved in hemocyanin turnover, but are a component of the cellular defense and detoxification system of adult coleoid cephalopods.

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Section: In Situ Injection Of Fluorescein-labeled Sepia Hemocyaninmentioning

confidence: 81%

Hemocyanin and the branchial heart complex of Sepia officinalis : are the hemocytes involved in hemocyanin metabolism of coleoid cephalopods?

Beuerlein

Ruth

Westermann

et al. 2002

Cell and Tissue Research

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“…Hemocytes are important in phagocytosis and killing of infectious agents, and in the repair of tissue damage resulting from mechanical or biological trauma. Encapsulation and phagocytosis of foreign materials are primary roles of molluscan hemocytes (Ford 1992). Phagocytosis of foreign material has been described in coccidian infections in different marine host species (Lom & Dyková 1992) and birds (Hammond 1973).…”

Section: Discussionmentioning

confidence: 99%

“…Molluscs have both cellular and humoral mechanisms of defense (Ford 1992). The most widely reported defense mechanism in cephalopods is the cellular one (Malham 1996, Malham et al 1997, Malham & Runham 1998.…”

Section: Discussionmentioning

confidence: 99%

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Observations on associated histopathology with Aggregata octopiana infection (Protista: Apicomplexa) in Octopus vulgaris

Gestal

Abollo²,

Pascual³

2002

Dis. Aquat. Org.

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Gamogony and sporogony of Aggregata octopiana were commonly observed during histological examination of the digestive tract of wild Octopus vulgaris from Ría de Vigo (NW Spain). A. octopiana infected noncuticularized caecum and intestine, and cuticularized oesophagus and crop. Infection was also observed in the gills and in covering mesenterium, mainly of the digestive gland and gonad. Histological and ultrastructural lesions associated with A. octopiana included host cell hypertrophy with nuclear displacement, inflammation, phagocytosis, ulceration and destruction of organ architecture. The possible existence of a malabsorption syndrome in the host is deduced.

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“…Haemocytoblasts have a large cytoplasmic volume and abundant rough endoplasmic reticulum and nucleoli. They are found in the reticulum of the white body’s lobes, and give rise to leukoblasts, which are characterized by a reduced cytoplasmic volume and nuclear size compared to their progenitors [99]. With the use of transmission and scanning electron microscopy, Claes (1996) [100], found haemocytoblasts, leukoblasts, and mature haemocytes in the cuttlefish S. officianalis , and proposed a schematic of haemocyte development similar to that described for octopus and squid species [99].…”

Section: Cephalopod Haematopoiesis and Haemocyte Functionmentioning

confidence: 99%

Haematopoiesis in molluscs: A review of haemocyte development and function in gastropods, cephalopods and bivalves

Pila

Sullivan

et al. 2016

Developmental & Comparative Immunology

115

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Haematopoiesis is a process that is responsible for generating sufficient numbers of blood cells in the circulation and in tissues. It is central to maintenance of homeostasis within an animal, and is critical for defense against infection. While haematopoiesis is common to all animals possessing a circulatory system, the specific mechanisms and ultimate products of haematopoietic events vary greatly. Our understanding of this process in non-vertebrate organisms is primarily derived from those species that serve as developmental and immunological models, with sparse investigations having been carried out in other organisms spanning the metazoa. As research into the regulation of immune and blood cell development advances, we have begun to gain insight into haematopoietic events in a wider array of animals, including the molluscs. What began in the early 1900’s as observational studies on the morphological characteristics of circulating immune cells has now advanced to mechanistic investigations of the cytokines, growth factors, receptors, signalling pathways, and patterns of gene expression that regulate molluscan haemocyte development. Emerging is a picture of an incredible diversity of developmental processes and outcomes that parallels the biological diversity observed within the different classes of the phylum Mollusca. However, our understanding of haematopoiesis in molluscs stems primarily from the three most-studied classes, the Gastropoda, Cephalopoda and Bivalvia. While these represent perhaps the molluscs of greatest economic and medical importance, the fact that our information is limited to only 3 of the 9 extant classes in the phylum highlights the need for further investigation in this area. In this review, we summarize the existing literature that defines haematopoiesis and its products in gastropods, cephalopods and bivalves.

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Host defense mechanisms of cephalopods

Cited by 41 publications

References 28 publications

Hemocyanin and the branchial heart complex of Sepia officinalis : are the hemocytes involved in hemocyanin metabolism of coleoid cephalopods?

Hemocyanin and the branchial heart complex of Sepia officinalis : are the hemocytes involved in hemocyanin metabolism of coleoid cephalopods?

Observations on associated histopathology with Aggregata octopiana infection (Protista: Apicomplexa) in Octopus vulgaris

Haematopoiesis in molluscs: A review of haemocyte development and function in gastropods, cephalopods and bivalves

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