Results 241 to 250 of about 46,080 (279)

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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Cellular binding of ³H‐cytochalasin B

Journal of Cellular Physiology, 1974
AbstractThe binding of tritium‐labelled cytochalasin B (3H‐CB) to a variety of mammalian cells was investigated. Binding studies revealed near‐equilibrium binding of 3H‐CB within 5 to 10 minutes, but the equilibrium level was influenced by 3H‐CB concentration. Binding kinetics revealed strong temperature dependence.
E, Mayhew, G, Poste, M, Cowden, N, Tolson, D, Maslow   +4 more
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Binding of cytochalasin B to platelets

Journal of Cellular Biochemistry, 1989
AbstractThe binding of cytochalasin B (CB) to human platelets and to isolated platelet cytosol and membranes has been analyzed with [3H]CB. High‐ and low affinity classes of saturable binding sites were associated with intact platelets. Binding at very low concentrations of CB (i.e., high‐affinity binding) was partially prevented by 100 mM D‐galatose ...
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Inhibition ofPhysarum mitochondrial division by cytochalasin B

Experientia, 1980
The mitochondrial division of Physarum is inhibited by cytochalasin B. Dumbbell-shaped dividing mitochondria become spherical bodies by this inhibitor. These results suggest that contractile proteins are essential for the mitochondrial division.
T, Kuroiwa, H, Kuroiwa
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Isolation of cytochalasins A and B fromAscochyta lathyri

Mycotoxin Research, 1992
The possible presence of toxic metabolites in the culture extracts of 24Ascochyta strains, grown on autoclaved wheat, was ascertained by the use of the biological assay on brine shrimps (Artemia salina). Only in the culture extract ofA lathyri, that showed a very high toxicity, the presence of cytochalasins A and B was revealed by tlc,(1)H nmr and fab ...
Vurro M, Zonno MC, Evidente A, Capasso R, Bottaiico A   +4 more
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Antigen-T Lymphocyte Interactions: Inhibition by Cytochalasin B

The Journal of Immunology, 1973
Abstract The adsorption of cytologically active C57BL/6 T lymphocytes onto homologous DBA/2 embryonic fibroblast monolayers has been studied in the presence of a number of drugs. The adsorption of cytolytic effector cells onto monolayers was unaffected by prostaglandin E1 or by colchicine, both of which are potent inhibitors of ...
Henney, C S, Bubbers, J E
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Cytochalasin B Fails to Inhibit Pinocytosis by Macrophages

Nature New Biology, 1972
Although endocytosis is a phenomenon exhibited by a wide variety of cells, the mechanisms mediating this process are obscure. Recently cytochalasin B, one of a group of natural macrolide compounds1, has been shown to inhibit the phagocytosis of bacteria by polymorphonuclear leucocytes2–4 and macrophages (refs. 3 and 5, and S. J. Rivett, P. Davies, A. C.
E J, Wills, P, Davies, A C, Allison, A D, Haswell   +3 more
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Action of Cytochalasin B on Cultured Human Lymphocytes

Nature, 1967
COMPOUNDS which effect cell division are interesting because they have the potential of increasing our knowledge about this poorly understood biological process. The cytochalasin compounds fall into this category because they can influence both cellular and nuclear division.
G F, Smith, M A, Ridler, J A, Faunch
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Cytochalasin B and Release of Growth Hormone

Nature New Biology, 1971
MICROTUBULES are believed to be involved in emiocytosis, in which secretory granules migrate and fuse with the cell membrane, thereby liberating the granule contents into the extracellular space. Important evidence for this is that the release of insulin from pancreatic islets of Langerhans1,2, histamine from mast cells3 and from leucocytes4 and ...
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Cilia regeneration in cytochalasin B treatedTetrahymena

Proceedings: Animal Sciences, 1988
Cytochalasin B treated (20 μ/ml) and deciliated tetrahymenae consistently show an initial 1 h lag in cilia regeneration. The scanning electron microscopic observations reveal the altered cell morphology in cytochalasin B treated cells around this time.
S Chatterjee, P Ray
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