Chromosome Division in Early Embryos—Is Everything under Control? And Is the Cell Size Important?

A Horakova, M Konecna, M Anger - International Journal of Molecular …, 2024 - mdpi.com
Chromosome segregation in female germ cells and early embryonic blastomeres is known
to be highly prone to errors. The resulting aneuploidy is therefore the most frequent cause of …

Role of spindle assembly checkpoint proteins in gametogenesis and embryogenesis

R Pun, BJ North - Frontiers in Cell and Developmental Biology, 2025 - frontiersin.org
The spindle assembly checkpoint (SAC) is a surveillance mechanism that prevents uneven
segregation of sister chromatids between daughter cells during anaphase. This essential …

Early onset of APC/C activity renders SAC inefficient in mouse embryos

A Horakova, M Konecna, L Radonova… - Frontiers in Cell and …, 2024 - frontiersin.org
Control mechanisms of spindle assembly and chromosome segregation are vital for
preventing aneuploidy during cell division. The mammalian germ cells and embryos are …

Absence of a robust mitotic timer mechanism in early preimplantation mouse embryos leads to chromosome instability

A Allais, G FitzHarris - Development, 2022 - journals.biologists.com
Preimplantation embryos often consist of a combination of euploid and aneuploid cells,
suggesting that safeguards preventing the generation and propagation of aneuploid cells in …

[HTML][HTML] Transcriptome and Proteome Analyses Reveal Stage-Specific DNA Damage Response in Embryos of Sturgeon (Acipenser ruthenus)

I Gazo, R Naraine, I Lebeda, A Tomčala… - International Journal of …, 2022 - mdpi.com
DNA damage during early life stages may have a negative effect on embryo development,
inducing mortality and malformations that have long-lasting effects during adult life …

SAC during early cell divisions: Sacrificing fidelity over timely division, regulated differently across organisms: Chromosome alignment and segregation are left …

J Duro, J Nilsson - BioEssays, 2021 - Wiley Online Library
Early embryogenesis is marked by a frail Spindle Assembly Checkpoint (SAC). The time of
SAC acquisition varies depending on the species, cell size or a yet to be uncovered …

Midbody-localized aquaporin mediates intercellular lumen expansion during early cleavage of an invasive freshwater bivalve

E Zieger, T Schwaha, K Burger, I Bergheim… - Frontiers in cell and …, 2022 - frontiersin.org
Intercellular lumen formation is a crucial aspect of animal development and physiology that
involves a complex interplay between the molecular and physical properties of the …

Acquisition of the spindle assembly checkpoint and its modulation by cell fate and cell size in a chordate embryo

M Roca, L Besnardeau, E Christians… - …, 2023 - journals.biologists.com
The spindle assembly checkpoint (SAC) is a surveillance system that preserves genome
integrity by delaying anaphase onset until all chromosomes are correctly attached to spindle …

The conserved AAA-ATPase PCH-2 TRIP13 regulates spindle checkpoint strength

L Défachelles, AE Russo, CR Nelson… - Molecular Biology of the …, 2020 - molbiolcell.org
Spindle checkpoint strength is dictated by the number of unattached kinetochores, cell
volume, and cell fate. We show that the conserved AAA-ATPase PCH-2/TRIP13, which …

High-content analysis of larval phenotypes for the screening of xenobiotic toxicity using Phallusia mammillata embryos

I Gazo, IDL Gomes, T Savy, L Besnardeau, C Hebras… - Aquatic Toxicology, 2021 - Elsevier
In recent years, pollution of surface waters with xenobiotic compounds became an issue of
concern in society and has been the object of numerous studies. Most of these xenobiotic …