Germ cells in the teleost fish medaka have an inherent feminizing effect. [PDF]
Germ cells are the only cells that can transfer genetic materials to the next generation via the sperm or egg. However, recent analyses in teleosts revealed another essential role of germ cells: feminizing the gonads.
Toshiya Nishimura +7 more
doaj +3 more sources
Manipulating primordial germ cells from chicken and other bird species [PDF]
Embryonic germ cells are the lineage restricted precursors to the gametes of the adult animal. Embryonic germ cells from birds offer a cellular system for both the conservation and the genetic modification of avian species ...
Marcel H. BLANK +2 more
doaj +2 more sources
Production of live fish derived from frozen germ cells via germ cell transplantation
The conservation of endangered fish is an urgent issue. Although cryo-banking of fish gametes might ultimately help conserve endangered fish, cryopreservation of fish eggs or embryos is still not possible due to their large size and high yolk content ...
Goro Yoshizaki, Seungki Lee
doaj +3 more sources
Strategies for Mammalian Mesenchymal Stem Cells Differentiation into Primordial Germ Cell-Like Cells: A Review [PDF]
Primordial germ cells develop into oocytes and sperm cells. These cells are useful resources in reproductive biology and regenerative medicine. The mesenchymal stem cells (MSCs) have been examined for in vitro production of primordial germ cell-like ...
Shabnam Fayezi +3 more
doaj +1 more source
SGK1 is essential for meiotic resumption in mammalian oocytes
In mammalian females, oocytes are stored in the ovary and meiosis is arrested at the diplotene stage of prophase I. When females reach puberty oocytes are selectively recruited in cycles to grow, overcome the meiotic arrest, complete the first meiotic ...
Edgar del Llano +8 more
doaj +1 more source
Oocyte specific lncRNA variant Rose influences oocyte and embryo development
Fully grown mammalian oocytes store a large amount of RNA synthesized during the transcriptionally active growth stage. A large part of the stored RNA belongs to the long non-coding class which contain either transcriptional noise or important ...
Rajan Iyyappan +5 more
doaj +1 more source
Metabolic pathways regulating the development and non-genomic heritable traits of germ cells
Metabolism is an important cellular process necessary not only for producing energy and building blocks for cells, but also for regulating various cell functions, including intracellular signaling, epigenomic effects, and transcription.
Yasuhisa MATSUI, Yohei HAYASHI
doaj +1 more source
Cyp26b1 expression in murine Sertoli cells is required to maintain male germ cells in an undifferentiated state during embryogenesis. [PDF]
In mammals, germ cells within the developing gonad follow a sexually dimorphic pathway. Germ cells in the murine ovary enter meiotic prophase during embryogenesis, whereas germ cells in the embryonic testis arrest in G0 of mitotic cell cycle and do not ...
Hui Li +4 more
doaj +1 more source
In vitro germ cell differentiation from cynomolgus monkey embryonic stem cells. [PDF]
BACKGROUND: Mouse embryonic stem (ES) cells can differentiate into female and male germ cells in vitro. Primate ES cells can also differentiate into immature germ cells in vitro.
Kaori Yamauchi +4 more
doaj +1 more source
Formation of the hatching mouse blastocyst marks the end of preimplantation development, whereby previous cell cleavages culminate in the formation of three distinct cell lineages (trophectoderm, primitive endoderm and epiblast).
Giorgio Virnicchi +5 more
doaj +1 more source

