Results 181 to 190 of about 4,393 (216)
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Coelomocyte cytoskeletons Interaction with cytochalasin B
Experimental Cell Research, 1980Abstract Cytochalasin B (CB) quickly distorts the gross morphology of sea urchin petaloid coelomocytes at low (0.1 μg/ml) concentrations and inhibits the cell's ability to morphologically transform to the filopodial form. Neither the ultrastructure nor the biochemical components of these cells are altered during these initial effects.
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Nitric oxide production by coelomocytes of Asterias forbesi
Developmental & Comparative Immunology, 2001Vertebrate mononuclear phagocytes produce a plethora of molecules involved in host defense. Among the most potent are the reactive oxygen and nitrogen intermediates. Coelomocytes from invertebrates subserve many of the same functions. In order to determine whether invertebrate phagocytes employ reactive nitrogen intermediates, we investigated the ...
G, Beck +6 more
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The Coelomocytes of Nereid Polychaetes
1974The coelomic fluids of most polychaetes, or marine annelids, contain numerous mobile cells which have phagocytic abilities. Many investigators have observed that coelomocytes of several species of polychaetes take up foreign matter and have suggested that they probably remove particulate wastes. This applies equally to nereids (Dehorne, 1922a,b; Romieu,
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The Coelomocytes of Asteroid Echinoderms
1984The cellular elements found in the coelomic fluid of asteroid echinoderms (sea stars or starfishes) have been the subject of numerous studies for almost a century. These cells, of which there are several types (Table 1), are collectively referred to as coelomo-cytes or coelomic corpuscles. They play diverse functional roles in the organism.
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Detection of antigen in the coelomocytes of the earthworm, Eisenia foetida (Annelida)
Immunology Letters, 1991Earthworms, Eisenia foetida, are able to respond to antigenic stimulation by the formation of the antigen-binding molecules by coelomocytes--the effector cells of annelids' defence reactions. The ability to react with gold-labelled antigen was detected in agranular coelomocytes by electron microscopy.
Bilej, Martin +7 more
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Effects of cytochalasin and colcemid on cortical flow in coelomocytes
Cell Motility, 1993AbstractSea urchin coelomocytes naturally flatten on a substratum into a discoid morphology and display striking, centripetally directed cortical flow along the radii of the cell when viewed with time lapse, video enhanced microscopy. The rate of cortical flow averaged 4.5 μm/min in the peripheral most 10 μm of cytoplasm but slows considerably in the ...
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Developmental and comparative immunology, 1988
The Holothuria polii coelomocyte lysate contains two trypsin-resistant lytic proteins having different chemico-physical properties: a calcium dependent and heat-labile hemolysin that is probably a constitutive component of the coelomic fluid, and another calcium independent and heat-stable one that is released after immunological stimulation; it is ...
C, Canicattì, D, Ciulla
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The Holothuria polii coelomocyte lysate contains two trypsin-resistant lytic proteins having different chemico-physical properties: a calcium dependent and heat-labile hemolysin that is probably a constitutive component of the coelomic fluid, and another calcium independent and heat-stable one that is released after immunological stimulation; it is ...
C, Canicattì, D, Ciulla
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Classification and Immune Function of Coelomocytes in Echinoderms
Current Chinese ScienceAbstract: The top taxonomic position among non-chordate invertebrates, which make up the evolutionary connection between invertebrates and vertebrates, is held by echinoderms. Their immune responses rely on coelomocyte activity functioning concurrently with a range of humoral components that directly interact with invasive pathogens. However, markedly
Zhuang Xue, Tingting Peng, Wei Wang
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Coelomocytes of the urchin Lytechinus pictus (Echinoidea)
Journal of Invertebrate Pathology, 1989Description des cœlomocytes de l'oursin L. pictus contenus dans son liquide cœlomique (phagocytes, globules rouges, cellules explosives, eleocytes et cellules reniformes) et determination de la densite cellulaire ...
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Studies on (echinodermata) coelomocyte lysate I. Hemolytic activity of coelomocyte hemolysins
Developmental & Comparative Immunology, 1987Calogero Canicattì, Donatella Ciulla
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