2021
DDX21 is a p38-MAPK-sensitive nucleolar protein necessary for mouse preimplantation embryo development and cell-fate specification
BORA, Pablo, Lenka GAHUROVÁ, Andrea HAUSEROVÁ, Martina STIBOROVÁ, Collier REBECCA et. al.Základní údaje
Originální název
DDX21 is a p38-MAPK-sensitive nucleolar protein necessary for mouse preimplantation embryo development and cell-fate specification
Autoři
BORA, Pablo (203 Česká republika), Lenka GAHUROVÁ (203 Česká republika), Andrea HAUSEROVÁ (203 Česká republika), Martina STIBOROVÁ (203 Česká republika), Collier REBECCA (203 Česká republika), David POTĚŠIL (203 Česká republika, domácí), Zbyněk ZDRÁHAL (203 Česká republika, garant, domácí) a Alexander W. BRUCE
Vydání
Open Biology, 2021, 2046-2441
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 7.124
Kód RIV
RIV/00216224:14740/21:00123878
Organizační jednotka
Středoevropský technologický institut
UT WoS
000674669000001
Klíčová slova anglicky
DDX21; p38-MAPK; preimplantation embryo development; cell fate specification
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 10. 2024 14:34, Ing. Martina Blahová
Anotace
V originále
Successful navigation of the mouse preimplantation stages of development, during which three distinct blastocyst lineages are derived, represents a prerequisite for continued development. We previously identified a role for p38-mitogen-activated kinases (p38-MAPK) regulating blastocyst inner cell mass (ICM) cell fate, specifically primitive endoderm (PrE) differentiation, that is intimately linked to rRNA precursor processing, polysome formation and protein translation regulation. Here, we develop this work by assaying the role of DEAD-box RNA helicase 21 (DDX21), a known regulator of rRNA processing, in the context of p38-MAPK regulation of preimplantation mouse embryo development. We show nuclear DDX21 protein is robustly expressed from the 16-cell stage, becoming exclusively nucleolar during blastocyst maturation, a localization dependent on active p38-MAPK. siRNA-mediated clonal Ddx21 knockdown within developing embryos is associated with profound cell-autonomous and non-autonomous proliferation defects and reduced blastocyst volume, by the equivalent peri-implantation blastocyst stage. Moreover, ICM residing Ddx21 knockdown clones express the EPI marker NANOG but rarely express the PrE differentiation marker GATA4. These data contribute further significance to the emerging importance of lineage-specific translation regulation, as identified for p38-MAPK, during mouse preimplantation development.
Návaznosti
LM2018127, projekt VaV |
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LM2018129, projekt VaV |
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LM2018140, projekt VaV |
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90127, velká výzkumná infrastruktura |
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