2017
Increased frequency of chromosome congression defects and aneuploidy in mouse oocytes cultured at lower temperature
DANADOVÁ, Jitka, Natalie MATIJESCUKOVA, Anna Mac Gillavry DANYLEVSKA a Martin ANGERZákladní údaje
Originální název
Increased frequency of chromosome congression defects and aneuploidy in mouse oocytes cultured at lower temperature
Autoři
DANADOVÁ, Jitka, Natalie MATIJESCUKOVA, Anna Mac Gillavry DANYLEVSKA a Martin ANGER
Vydání
Reproduction, Fertility and Development, Clayton, CSIRO Publishing, 2017, 1031-3613
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Austrálie
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.105
Organizační jednotka
Lékařská fakulta
UT WoS
000399309500012
Klíčová slova anglicky
anaphase-promoting complex/cyclosome; chromosome misalignment; culture temperature; IVM
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 16. 3. 2018 17:01, Soňa Böhmová
Anotace
V originále
Optimal culture conditions are essential for successful IVM of mammalian oocytes and for their further development into an embryo. In the present study we used live cell imaging microscopy to assess the effects of suboptimal culture temperature on various aspects of IVM, including duration of meiosis I, dynamics of polar body extrusion, chromosome congression, anaphase-promoting complex/cyclosome (APC/C) activation and aneuploidy. The data showed that even a small deviation from the optimal incubation temperature causes marked changes in the duration and synchronicity of meiosis, APC/C activity and the frequency of chromosome congression and segregation errors. In vitro manipulation and maturation of germ cells is widely used in both human and animal artificial reproduction techniques. Mammalian oocytes are naturally prone to chromosomal segregation errors, which are responsible for severe mental and developmental disorders. The data presented herein demonstrate that exposure of mouse oocytes to suboptimal temperature during manipulation and maturation could further increase the frequency of chromosome segregation defects in these cells.
Návaznosti
GA15-04844S, projekt VaV |
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LQ1601, projekt VaV |
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