Results 161 to 170 of about 4,393 (216)
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Cell Motility, 1983
AbstractWe have utilized a video‐enhanced contrast system coupled to a DIC‐equipped microscope to examine the motility of both whole coelomocytes and individual filopodia. When the cells are left in diluted coelomic fluid, they exhibit a fibroblast‐like mode of translocation across the substrate.
K T, Edds, C, Chambers, R D, Allen
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AbstractWe have utilized a video‐enhanced contrast system coupled to a DIC‐equipped microscope to examine the motility of both whole coelomocytes and individual filopodia. When the cells are left in diluted coelomic fluid, they exhibit a fibroblast‐like mode of translocation across the substrate.
K T, Edds, C, Chambers, R D, Allen
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Earthworm coelomocytes in vitro
In Vitro, 1977Contamination and low viability of earthworm coelemocytes in tissue culture have delayed in vitro studies. Using penicillin, streptomycin, tetracycline and Amphotericin B, Lumbricus terrestis coelomocytes were maintained viable and uncontaminated for 10 days at 15degreesC in medium L-15 supplemented with 5 to 10% fetal bovine serum.
J, Toupin +3 more
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Epithelial origin of starfish coelomocytes
Nature, 1976THE various theories proposed to explain the origin of echinoderm coelomocytes can be classified into two groups, depending on whether they refer to a cytopoietic organ or tissue (Tiedemann bodies1–3, Polian vesicles1, axial organ1,4, connective tissue5,6 and coelomic epithelium7–9) or whether they imply self-replication of free cells9–11.
Bossche, J P, Jangoux, Michel
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Developmental & Comparative Immunology, 1988
The lytic activity of the Holothuria polii coelomocyte lysate resides in two electrophoretically distinct hemolysins identified as He1 and He2. He1 represents the calcium dependent, heat-labile component whereas He2 is calcium independent and heat-stable. The two hemolysins share serological identity.
C, Canicatti, D, Ciulla
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The lytic activity of the Holothuria polii coelomocyte lysate resides in two electrophoretically distinct hemolysins identified as He1 and He2. He1 represents the calcium dependent, heat-labile component whereas He2 is calcium independent and heat-stable. The two hemolysins share serological identity.
C, Canicatti, D, Ciulla
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Revising lysenin expression of earthworm coelomocytes
Developmental & Comparative Immunology, 2013Lysenin is a species-specific bioactive molecule of Eisenia andrei earthworms. This protein is a potent antimicrobial factor; however its cellular expression and induction against pathogens are still not fully understood. We developed a novel monoclonal antibody against lysenin and applied this molecular tool to characterize its production and ...
Balázs, Opper +4 more
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The hemolysin-producer coelomocytes in Holothuria polii
Developmental & Comparative Immunology, 1988Using sodium metrizoate discontinuous gradients, two hemolysin-producer amebocyte populations have been separated from total circulating Holothuria polii coelomocytes. The amebocytes of population 1 are responsible for the production of the calcium-dependent and temperature-labile hemolysin, whereas those of population 2 produce the calcium-independent
C, Canicatti +2 more
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Calcium is required for coelomocyte activation in earthworms
Molecular Immunology, 2010The role of calcium signaling in activation of both innate and adaptive immunity is basically important, however, the evolutionary aspects are not clarified yet. Currently limited data are available about calcium levels of coelomocytes, cellular mediators of earthworm immunity.
Balázs, Opper +2 more
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Coelomocytes as Effector Cells in Eartworm Immunity
Immunological Communications, 1972The results from this study support the following hypothetical mechanism for the rejection of xenografts by Lumbricus. Initially, coelomocytes are attracted to xenografts due to the stimulus of tissue injury. This results in clumping or nodule formation around injured and loose muscle fibers, and a general clumping of baso-phils.
R K, Hostetter, E L, Cooper
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Arylsulfatase in coelomocytes ofHolothuria polii
Experientia, 1988Holothuria polii coelomocytes possess arylsulfatase enzymes. Two pH optima were found for arylsulfatase activity in cell lysate preparations, one at pH 5.0 and the other at pH 5.8. Both increased after injection of zymosan particles or formalinized sheep red blood cells (fSR-BC), indicating an active role of the enzymes during phagocytosis of ...
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