Results 31 to 40 of about 25,078 (240)

Spindle birefringence of isolated mitotic apparatus: further evidence for two birefringent spindle components [PDF]

open access: yesJournal of Cell Science, 1976
ABSTRACT We studied sea-urchin zygote mitotic apparatus (MA) isolated in hexylene glycol, transferred immediately to a glycerol-dimethylsulphoxide medium, and stored for 2 weeks at room temperature. Treatment with 0·5 M KC1 caused loss of 45% of the birefringence, but microtubules remained intact (as seen electron microscopically in ...
A, Forer, V I, Kalnins, A M, Zimmerman
openaire   +2 more sources

Dominant-Negative Effects of Adult-Onset Huntingtin Mutations Alter the Division of Human Embryonic Stem Cells-Derived Neural Cells. [PDF]

open access: yesPLoS ONE, 2016
Mutations of the huntingtin protein (HTT) gene underlie both adult-onset and juvenile forms of Huntington's disease (HD). HTT modulates mitotic spindle orientation and cell fate in mouse cortical progenitors from the ventricular zone.
Carla Lopes   +7 more
doaj   +1 more source

Two major autoantigen—Antibody systems of the mitotic spindle apparatus [PDF]

open access: yesArthritis & Rheumatism, 1996
AbstractObjective. To characterize human autoantigen‐antibody systems related to the mitotic poles and spindles.Methods. Thirty‐seven human sera with autoantibodies staining mitotic poles and spindles in indirect immunofluorescence (IIF) studies were further characterized by immunofluorescence on mitotic cells and by immunoblotting and ...
L E, Andrade   +3 more
openaire   +2 more sources

In situ visualization of a simple bipartite kinetochore with a single microtubule attachment in Giardia intestinalis (Metamonada)

open access: yesEuropean Journal of Cell Biology, 2022
To understand general features in evolution of kinetochore organization, investigating a wide range of mitotic mechanisms in various non-model eukaryotes is necessary.
Pavla Tůmová   +2 more
doaj   +1 more source

Meiotic Spindle Formation Following Inhibition of First Polar Body Formation in the Zhikong Scallop (Chlamys farreri Jones et Preston)

open access: yesFrontiers in Marine Science, 2021
Fertilized Zhikong scallop (Chlamys farreri) eggs were treated with cytochalasin B (CB 0.5 mg/L) at 14–15 min postfertilization to inhibit first polar body formation.
Yongren Li   +3 more
doaj   +1 more source

Evolutionary cell biology of chromosome segregation: insights from trypanosomes [PDF]

open access: yesOpen Biology, 2013
Faithful transmission of genetic material is essential for the survival of all organisms. Eukaryotic chromosome segregation is driven by the kinetochore that assembles onto centromeric DNA to capture spindle microtubules and govern the movement of ...
Bungo Akiyoshi, Keith Gull
doaj   +1 more source

Microtubule and Actin Cytoskeletal Dynamics in Male Meiotic Cells of Drosophila melanogaster

open access: yesCells, 2022
Drosophila dividing spermatocytes offer a highly suitable cell system in which to investigate the coordinated reorganization of microtubule and actin cytoskeleton systems during cell division of animal cells.
Anna Frappaolo   +2 more
doaj   +1 more source

Manipulation of the oocyte: possible damage to the spindle apparatus

open access: yesReproductive BioMedicine Online, 2002
Oocytes are structured, polarized cells. For high developmental potential, it is essential that the distribution of organelles and molecules, and the function of meiotic spindles remain intact during handling of oocytes in assisted reproduction. Spindles are dynamic cell organelles. Spindle formation depends on activity of motor proteins, energy supply
Ursula, Eichenlaub-Ritter   +2 more
openaire   +2 more sources

Evidence for a role of spindle matrix formation in cell cycle progression by antibody perturbation.

open access: yesPLoS ONE, 2018
In Drosophila it has recently been demonstrated that a spindle matrix in the form of a membrane-less macromolecular assembly embeds the microtubule-based spindle apparatus.
Changfu Yao   +7 more
doaj   +1 more source

Natural products as new antimitotic compounds for anticancer drug development

open access: yesClinics, 2018
Cell cycle control genes are frequently mutated in cancer cells, which usually display higher rates of proliferation than normal cells. Dysregulated mitosis leads to genomic instability, which contributes to tumor progression and aggressiveness.
Carlos Roberto Koscky Paier   +8 more
doaj   +1 more source

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