Results 111 to 120 of about 52,438 (267)
During mitosis in Ptk1 cells anaphase is not initiated until, on average, 23 +/- 1 min after the last monooriented chromosome acquires a bipolar attachment to the spindle--an event that may require 3 h (Rieder, C. L., A. Schultz, R. W.
C. Rieder+3 more
semanticscholar +1 more source
Impacts of Inorganic Arsenic Exposure on Genetic Stability of Human Mesenchymal Stromal Cells
ABSTRACT Human mesenchymal stem/stromal cells (hMSCs) can differentiate into mesoderm‐type cells, making them suitable candidates for tissue repair therapies. However, their relatively low frequency in adult tissue necessitates ex vivo expansion prior to regenerative medicine applications, and therefore, long‐term hMSC genetic stability during ...
Marc A. Beal+11 more
wiley +1 more source
ACTION SPECTRA FOR MITOTIC SPINDLE DESTRUCTION AND ANAPHASE DELAY FOLLOWING IRRADIATION OF THE CYTOPLASM WITH AN ULTRAVIOLET MICROBEAM* [PDF]
Darrell Q. Brown, Raymond E. Zirkle
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ABSTRACT Genomic incompatibilities and differential ecological adaptation are thought to be fundamental mechanisms of speciation. In this study, we generated a chromosome‐scale reference genome and annotation for Gopherus morafkai , the Sonoran Desert tortoise, and conducted a detailed analysis of genes under positive selection with its sister species,
Sarah M. Baty+6 more
wiley +1 more source
THE BEHAVIOR OF STRONG AND WEAK CENTROMERES AT SECOND ANAPHASE OF DROSOPHILA MELANOGASTER [PDF]
Mark Ptashne
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During the G2/M phase, mucin1 (MUC1) activates protein phosphatase 2A (PP2A), leading to reduced phosphorylation of protein kinase C ζ (PKCζ) and NUMB, which promotes symmetric division and expansion of cancer stem‐like cells (CSLCs), thereby driving tumorigenesis. Combined inhibition of the MUC1–PP2A axis using LB100/GO203 with etoposide restores PKCζ
Shengze Li+15 more
wiley +1 more source
Are dicentric anaphase bridges formed by somatic recombination in X chromosome inversion heterozygotes of Drosophila melanogaster? [PDF]
J. R. Merriam+2 more
openalex +1 more source
The spindle assembly checkpoint mechanism delays anaphase initiation until all chromosomes are aligned at the metaphase plate. Activation of the anaphase-promoting complex (APC) by binding of CDC20 and CDH1 is required for exit from mitosis, and APC has ...
G. Fang+3 more
semanticscholar +1 more source
ABSTRACT Haloxyfop‐R‐methyl (HRM) is extensively employed to control annual and perennial grass weeds. This study aimed to investigate the cyto‐genotoxic effects of HRM at concentrations of 1.19, 2.38, and 4.76 mg/L over various time intervals (24, 48, 72, and 96 h) on Allium cepa root.
Recep Liman+4 more
wiley +1 more source
A temperature-sensitive mutation of the Schizosaccharomyces pombe gene nuc2+ that encodes a nuclear scaffold-like protein blocks spindle elongation in mitotic anaphase. [PDF]
Tatsuya Hirano+2 more
openalex +1 more source