Results 31 to 40 of about 312,064 (187)

Possible attenuation of the G2 DNA damage cell cycle checkpoint in HeLa cells by extremely low frequency (ELF) electromagnetic fields [PDF]

open access: yes, 2002
BACKGROUND: The issue remains unresolved as to whether low frequency magnetic fields can affect cell behaviour, with the possibility that they may be in part responsible for the increased incidence of leukaemia in parts of the population exposed to ...
Harris, Paul A.   +3 more
core   +3 more sources

Mitosis Detection in Breast Histopathology Images Using a Self-Attention-Enhanced Faster R-CNN Framework

open access: yesIEEE Access
At present, mitosis detection in breast histopathology images is a critical issue for breast cancer grading. Due to the breast tissue having a complex structure, and mitosis and non-mitosis cells being similar to each other, traditional methods for ...
Sarah Ayashm   +3 more
doaj   +1 more source

Positive Feedback Keeps Duration of Mitosis Temporally Insulated from Upstream Cell-Cycle Events [PDF]

open access: yes, 2016
Cell division is characterized by a sequence of events by which a cell gives rise to two daughter cells. Quantitative measurements of cell-cycle dynamics in single cells showed that despite variability in G1-, S-, and G2 phases, duration of mitosis is ...
Araujo, AR   +3 more
core   +1 more source

Fcp1 phosphatase controls Greatwall kinase to promote PP2A-B55 activation and mitotic progression

open access: yeseLife, 2015
During cell division, progression through mitosis is driven by a protein phosphorylation wave. This wave namely depends on an activation-inactivation cycle of cyclin B-dependent kinase (Cdk) 1 while activities of major protein phosphatases, like PP1 and ...
Rosa Della Monica   +4 more
doaj   +1 more source

Cigarette smoke condensate induces centrosome clustering in normal lung epithelial cells

open access: yesCancer Medicine, 2023
Background Unlike normal cells, cancer cells frequently have multiple centrosomes that can cluster to form bipolar mitotic spindles and allow for successful cell division.
Jose Thaiparambil   +4 more
doaj   +1 more source

A stable mode of bookmarking by TBP recruits RNA polymerase II to mitotic chromosomes. [PDF]

open access: yes, 2018
Maintenance of transcription programs is challenged during mitosis when chromatin becomes condensed and transcription is silenced. How do the daughter cells re-establish the original transcription program?
An, Luye   +5 more
core  

Chromosome segregation in plant meiosis [PDF]

open access: yes, 2014
Faithful chromosome segregation in meiosis is essential for ploidy stability over sexual life cycles. In plants, defective chromosome segregation caused by gene mutations or other factors leads to the formation of unbalanced or unreduced gametes creating
De Storme, Nico   +4 more
core   +2 more sources

CLASP promotes microtubule bundling in metaphase spindle independently of Ase1/PRC1 in fission yeast

open access: yesBiology Open, 2019
Microtubules in the mitotic spindle are organised by microtubule-associated proteins. In the late stage of mitosis, spindle microtubules are robustly organised through bundling by the antiparallel microtubule bundler Ase1/PRC1. In early mitosis, however,
Hirohisa Ebina, Liang Ji, Masamitsu Sato
doaj   +1 more source

A PKD-MFF signaling axis couples mitochondrial fission to mitotic progression

open access: yesCell Reports, 2021
Summary: Mitochondria are highly dynamic organelles subjected to fission and fusion events. During mitosis, mitochondrial fission ensures equal distribution of mitochondria to daughter cells. If and how this process can actively drive mitotic progression
Evanthia Pangou   +15 more
doaj   +1 more source

Giant cell formation produced by laser microbeam irradiation of chromatin in Chinese hamster cells [PDF]

open access: yes, 1981
A pulsed laser microbeam of wavelength 532 nm was used to produce visible small lesions in the nucleoplasm or in the cytoplasm of V79 Chinese hamster cells.
Altmann   +34 more
core   +2 more sources

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