نتایج جستجو برای: cytochalasin b
تعداد نتایج: 900076 فیلتر نتایج به سال:
The effects of cytochalasin B on fertilization and ploidy in Crassostrea gigas were examined in a controlled experiment. This enabled us to better understand why variable ploidy results have been found with the retention ofpolar bodies in previous studies on bivalve mollusks, and what the interaction with fertilization may be. By looking at the early development of Crassas/rea gigas embryos wit...
Epithelial cell lines derived from rat tracheal implants 2 and 9 months after a 4-week exposure to 200 micrograms dimethylbenz(a)anthracene-beeswax pellets, and previously assayed for growth in soft agarose and tumorigenicity, were tested at the same time of subculture for cytochalasin B-induced multinucleation to determine the relationships between anchorage-independent growth, uncontrolled nu...
A specific D-glucose-inhibitable [3H]cytochalasin Bbinding assay is used to examine the time course, reversibility, and hormone concentration dependency of an insulin-induced translocation of glucose transport systems from a large intracellular pool, associated with a low density subfraction of the microsomal membranes, to the plasma membrane in isolated rat adipose cells. The number of glucose...
Plasma membrane- and Golgi vesicle-enriched membrane fractions were prepared from day-10 lactating rat mammary glands. Each fraction was found to contain a single set of D-glucose-inhibitable cytochalasin B-binding sites: plasma membranes and Golgi vesicles bound 20 +/- 2 and 53 +/- 4 pmol of cytochalasin/mg of membrane protein (means +/- S.E.M.), with dissociation constants of 259 +/- 47 and 5...
In previous investigations, we have shown that aggregates of normal human fibroblasts displayed a remarkable number of morphogenetic properties in suspension and on a substratum. The present investigation has attempted to illustrate more clearly the role of colchicine- and cytochalasin-sensitive structures in the observed ultrastructural properties of the fibroblasts in this system. Cytochalasi...
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