2024
Zygotic spindle orientation defines cleavage pattern and nuclear status of human embryos
POROKH, Volodymyr; Drahomira KYJOVSKA; Martina MARTONOVA; Tereza KLENKOVA; Pavel OTEVREL et al.Základní údaje
Originální název
Zygotic spindle orientation defines cleavage pattern and nuclear status of human embryos
Autoři
POROKH, Volodymyr; Drahomira KYJOVSKA; Martina MARTONOVA; Tereza KLENKOVA; Pavel OTEVREL; Soňa KLOUDOVÁ a Zuzana HOLUBCOVÁ
Vydání
Nature Communications, Berlin, Nature, 2024, 2041-1723
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10605 Developmental biology
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 15.700
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/24:00136786
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
zygotic spindle orientation; human embryos; cleavage pattern; nuclear status
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 4. 4. 2025 12:41, Mgr. Tereza Miškechová
Anotace
V originále
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.
Návaznosti
| EF19_073/0016943, projekt VaV |
| ||
| MUNI/A/1301/2022, interní kód MU |
| ||
| MUNI/A/1598/2023, interní kód MU |
| ||
| MUNI/IGA/1127/2021, interní kód MU |
|