Dissecting the role of the germinal vesicle nuclear envelope and soluble

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F19%3AN0000175" target="_blank" >RIV/00027014:_____/19:N0000175 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.jstage.jst.go.jp/article/jrd/65/5/65_2019-017/_pdf" target="_blank" >https://www.jstage.jst.go.jp/article/jrd/65/5/65_2019-017/_pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1262/jrd.2019-017" target="_blank" >10.1262/jrd.2019-017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dissecting the role of the germinal vesicle nuclear envelope and soluble

Popis výsledku v původním jazyce

Differentiated nuclei can be reprogrammed/remodelled to totipotency after their transfer to enucleated metaphase II (MII) oocytes. The process of eprogramming/remodelling is, however, only partially characterized. It has been shown that the oocyte nucleus (germinal vesicle – GV) components are essential for a successful remodelling of the transferred nukleus by providing the materials for pseudo-nucleus formation. However, the nucleus is a complex structure and exactly what nuclear components are required for a successful nucleus remodelling and reprogramming is unknown. Till date, the only nuclear sub-structure experimentally demonstrated to be essential is the oocyte nucleolus (nucleolus-like body, NLB). In this study, we investigated what other GV components might be necessary for the formation of normal-sized pseudo-pronuclei (PNs). Our results showed that the removal of the GV nuclear envelope with attached chromatin and chromatin-bound factors does not substantially influence the size of the remodelled nuclei in reconstructed cells and that their nuclear envelopes seem to have normal parameters. Rather than the insoluble nuclear lamina, the GV content, which is dissolved in the cytoplasm with the onset of oocyte maturation, influences the characteristics and size of transferred nuclei.

Název v anglickém jazyce

Dissecting the role of the germinal vesicle nuclear envelope and soluble

Popis výsledku anglicky

Differentiated nuclei can be reprogrammed/remodelled to totipotency after their transfer to enucleated metaphase II (MII) oocytes. The process of eprogramming/remodelling is, however, only partially characterized. It has been shown that the oocyte nucleus (germinal vesicle – GV) components are essential for a successful remodelling of the transferred nukleus by providing the materials for pseudo-nucleus formation. However, the nucleus is a complex structure and exactly what nuclear components are required for a successful nucleus remodelling and reprogramming is unknown. Till date, the only nuclear sub-structure experimentally demonstrated to be essential is the oocyte nucleolus (nucleolus-like body, NLB). In this study, we investigated what other GV components might be necessary for the formation of normal-sized pseudo-pronuclei (PNs). Our results showed that the removal of the GV nuclear envelope with attached chromatin and chromatin-bound factors does not substantially influence the size of the remodelled nuclei in reconstructed cells and that their nuclear envelopes seem to have normal parameters. Rather than the insoluble nuclear lamina, the GV content, which is dissolved in the cytoplasm with the onset of oocyte maturation, influences the characteristics and size of transferred nuclei.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10604 - Reproductive biology (medical aspects to be 3)

Projekt

<a href="/cs/project/GA17-08605S" target="_blank" >GA17-08605S: Jaderné a cytoplasmatické determinanty zodpovědné za regulaci zrání oocytů a vývoj embrya</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Reproduction and Development

ISSN

0916-8818

e-ISSN

—

Svazek periodika

65

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

9

Strana od-do

433-441

Kód UT WoS článku

000494886200006

EID výsledku v databázi Scopus

2-s2.0-85074117825