| POROKH, Volodymyr, Drahomira KYJOVSKA, Martina MARTONOVA, Tereza KLENKOVA, Pavel OTEVREL, Soňa KLOUDOVÁ and Zuzana HOLUBCOVÁ. Zygotic spindle orientation defines cleavage pattern and nuclear status of human embryos. Nature Communications. Berlin: Nature, 2024, vol. 15, No 1, p. 1-9. ISSN 2041-1723. Available from: https://dx.doi.org/10.1038/s41467-024-50732-z. |
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@article{2423145,
author = {Porokh, Volodymyr and Kyjovska, Drahomira and Martonova, Martina and Klenkova, Tereza and Otevrel, Pavel and Kloudová, Soňa and Holubcová, Zuzana},
article_location = {Berlin},
article_number = {1},
doi = {http://dx.doi.org/10.1038/s41467-024-50732-z},
keywords = {zygotic spindle orientation; human embryos; cleavage pattern; nuclear status},
language = {eng},
issn = {2041-1723},
journal = {Nature Communications},
title = {Zygotic spindle orientation defines cleavage pattern and nuclear status of human embryos},
url = {https://www.nature.com/articles/s41467-024-50732-z},
volume = {15},
year = {2024}
}
TY - JOUR
ID - 2423145
AU - Porokh, Volodymyr - Kyjovska, Drahomira - Martonova, Martina - Klenkova, Tereza - Otevrel, Pavel - Kloudová, Soňa - Holubcová, Zuzana
PY - 2024
TI - Zygotic spindle orientation defines cleavage pattern and nuclear status of human embryos
JF - Nature Communications
VL - 15
IS - 1
SP - 1-9
EP - 1-9
PB - Nature
SN - 20411723
KW - zygotic spindle orientation
KW - human embryos
KW - cleavage pattern
KW - nuclear status
UR - https://www.nature.com/articles/s41467-024-50732-z
N2 - The first embryonic division represents a starting point for the development of a new individual. In many species, tight control over the first embryonic division ensures its accuracy. However, the first division in humans is often erroneous and can impair embryo development. To delineate the spatiotemporal organization of the first mitotic division typical for normal human embryo development, we systematically analyzed a unique timelapse dataset of 300 IVF embryos that developed into healthy newborns. The zygotic division pattern of these best-quality embryos was compared to their siblings that failed to implant or arrested during cleavage stage. We show that division at the right angle to the juxtaposed pronuclei is preferential and supports faithful zygotic division. Alternative configurations of the first mitosis are associated with reduced clustering of nucleoli and multinucleation at the 2-cell stage, which are more common in women of advanced age. Collectively, these data imply that orientation of the first division predisposes human embryos to genetic (in)stability and may contribute to aneuploidy and age-related infertility.
ER -
POROKH, Volodymyr, Drahomira KYJOVSKA, Martina MARTONOVA, Tereza KLENKOVA, Pavel OTEVREL, Soňa KLOUDOVÁ and Zuzana HOLUBCOVÁ. Zygotic spindle orientation defines cleavage pattern and nuclear status of human embryos. \textit{Nature Communications}. Berlin: Nature, 2024, vol.~15, No~1, p.~1-9. ISSN~2041-1723. Available from: https://dx.doi.org/10.1038/s41467-024-50732-z.
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