Results 101 to 110 of about 36,138 (257)
Spindle assembly checkpoint and its regulators in meiosis [PDF]
BACKGROUND Meiosis is a unique form of cell division in which cells divide twice but DNA is duplicated only once. Errors in chromosome segregation during meiosis will result in aneuploidy, followed by loss of the conceptus during pregnancy or birth defects. During mitosis, cells utilize a mechanism called the spindle assembly checkpoint (SAC) to ensure
Shao-Chen, Sun, Nam-Hyung, Kim
openaire +2 more sources
Bod1, a novel kinetochore protein required for chromosome biorientation [PDF]
We have combined the proteomic analysis of Xenopus laevis in vitro–assembled chromosomes with RNA interference and live cell imaging in HeLa cells to identify novel factors required for proper chromosome segregation. The first of these is Bod1, a protein
McClelland, Sarah E. +25 more
core +1 more source
The spindle assembly checkpoint (SAC) halts anaphase progression until all kinetochores have obtained bipolar, stable attachments to the mitotic spindle. Upon initial attachment, chromosomes undergo oscillatory movements to reach metaphase.
L. M. Janssen +5 more
semanticscholar +1 more source
Hypoxia Induces a Mitotic Survival Advantage After Radiotherapy in Head and Neck Cancer Cells
Hypoxic tumor environments significantly limit radiotherapy effectiveness against cancer, particularly in head and neck squamous cell carcinoma (HNSCC). Here, the authors tracked hypoxic and post‐hypoxic cells using a hypoxia‐fate mapping system in human papillomavirus (HPV)‐positive and HPV‐negative HNSCC models.
Marilyn Wegge +3 more
wiley +1 more source
The current view for the silencing of the spindle assembly checkpoint [PDF]
Chromosome bipolar attachment is achieved when sister kinetochores are attached by microtubules emanating from opposite spindle poles, and this process is essential for faithful chromosome segregation during anaphase. A fundamental question in cell biology is how cells ensure that chromosome segregation only occurs after bipolar attachment.
Yanchang, Wang +3 more
openaire +2 more sources
Axin-1 Regulates Meiotic Spindle Organization in Mouse Oocytes. [PDF]
Axin-1, a negative regulator of Wnt signaling, is a versatile scaffold protein involved in centrosome separation and spindle assembly in mitosis, but its function in mammalian oogenesis remains unknown.
Xiao-Qin He +12 more
doaj +1 more source
ABSTRACT Advances in high‐throughput sequencing, single‐cell profiling, and genome engineering have transformed the study of T cell receptors (TCRs), enabling the identification and functional interrogation of antigen‐specific repertoires at an unprecedented scale.
Kilian Schober
wiley +1 more source
TRAIP is a regulator of the spindle assembly checkpoint.
Accurate chromosome segregation during mitosis is temporally and spatially coordinated by fidelity-monitoring checkpoint systems. Deficiencies in these checkpoint systems can lead to chromosome segregation errors and aneuploidy, and promote tumorigenesis.
Chapard, Christophe +5 more
openaire +4 more sources
No stretch for spindle assembly checkpoint [PDF]
![][1] Kinetochores (red) attach to the spindle (green), whereas chromatin (blue) is largely excluded. Dividing cells aren't quite as obsessed with quality control as previously thought, according to results from [O'Connell and colleagues][2].
openaire +1 more source
The equatorial position of the metaphase plate ensures symmetric cell divisions
Chromosome alignment in the middle of the bipolar spindle is a hallmark of metazoan cell divisions. When we offset the metaphase plate position by creating an asymmetric centriole distribution on each pole, we find that metaphase plates relocate to the ...
Chia Huei Tan +6 more
doaj +1 more source

