Results 201 to 210 of about 5,784 (241)

Intermediate filament proteins in echinoderm coelomocytes

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2000
The presence and organization of intermediate filament (IF) proteins in petaloid coelomocytes from two species of echinoderms, the sea urchin Strongylocentrotus droehachiensis and the sea cucumber Cucumaria frondosa, were studied. Two monoclonal antibodies (IFA and Ah6) and one polyclonal antibody (W3-1) that together recognize invertebrate as well as ...
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Stimulation of starfish coelomocytes by interleukin-1

Biochemical and Biophysical Research Communications, 1991
Echinoderms have coelomocytes that are capable of non-specific phagocytosis of pathogens and cellular debris. It has been suggested that cytokines, analogous to vertebrate interleukins, are involved in mediating these responses, though how they may function is not known.
R D, Burke, R F, Watkins
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Coelomocyte cytoskeletons Interaction with cytochalasin B

Experimental Cell Research, 1980
Abstract 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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Calcium is required for coelomocyte activation in earthworms

Molecular Immunology, 2010
The 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, Péter, Németh, Péter, Engelmann   +2 more
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Application of DNA diffusion assay in earthworm coelomocytes

Environmental Toxicology, 2008
AbstractWe have applied the DNA diffusion assay proposed by Singh (2000) Exp Cell Res 256:328–337, for quantitative estimation of apoptosis in earthworm coelomocytes, exposed to Chromium (VI) and cypermethrin as model toxicants in vitro. The DNA diffusion assay was originally described for mammalian cells.
A A, Apte, R S, Manerikar, V S, Ghole
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Coelomocyte replenishment in adult Asterias rubens: the possible ways

Cell and Tissue Research, 2020
The origin of cells involved in regeneration in echinoderms remains an open question. Replenishment of circulatory coelomocytes-cells of the coelomic cavity in starfish-is an example of physiological regeneration. The coelomic epithelium is considered to be the main source of coelomocytes, but many details of this process remain unclear.
Natalia Sharlaimova, Sergey Shabelnikov, Dan Bobkov, Marina Martynova, Olga Bystrova, Olga Petukhova   +5 more
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Separation of Earthworm Coelomocytes by Velocity Sedimentation

1979
Earthworm leukocytes (coelomocytes) are heterogeneous morphologically (1,2) and participate in diverse functions including graft rejection (3), phagocytosis (1), formation of rosettes with SRBC (4), and mitogen responsiveness (5,6). Specific cells mediating these responses are controversial, thus we have developed a procedure for separating ...
E L, Cooper, H R, MacDonald, B, Sordat
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Coelomocytes of earthworms: The T-cell-like rosette

Cellular Immunology, 1976
Abstract The coelomocytes forming spontaneous rosettes with sheep red blood cells (SRBC) were studied under various experimental conditions in lumbricus terrestris . The percentage of rosettes did vary with the pH, increased with the incubation period and remained constant at 4°C and at room temperature.
J, Toupin, G, Lamoureux
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Studies on Holothuria polii (Echinodermata) coelomocyte lysate. I. Hemolytic activity of coelomocyte hemolysins.

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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Nitric oxide production by coelomocytes of Asterias forbesi

Developmental & Comparative Immunology, 2001
Vertebrate 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, T, Ellis, H, Zhang, W, Lin, K, Beauregard, G S, Habicht, N, Truong   +6 more
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