Results 111 to 120 of about 137,442 (242)

Primordial germ cells: the first cell lineage or the last cells standing?

open access: yesDevelopment, 2015
Embryos of many animal models express germ line determinants that suppress transcription and mediate early germ line commitment, which occurs before the somatic cell lineages are established.
Andrew D. Johnson, R. Alberio
semanticscholar   +1 more source

Incidence of Gonadal and Extragonadal Germ Cell Tumours in Patients With Klinefelter Syndrome

open access: yesAndrology, EarlyView.
ABSTRACT Background Klinefelter's syndrome (KS; 47, XXY) is associated with an altered risk profile for malignancies compared with non‐KS males. In particular, several reports have noted a striking association between KS and extragonadal germ cell tumours (EGCTs), especially in the mediastinum, whereas the risk of testicular germ cell tumours (TGCTs ...
Aksh Tailor   +6 more
wiley   +1 more source

Fluid dynamics during bleb formation in migrating cells in vivo.

open access: yesPLoS ONE, 2019
Blebs are cellular protrusions observed in migrating cells and in cells undergoing spreading, cytokinesis, and apoptosis. Here we investigate the flow of cytoplasm during bleb formation and the concurrent changes in cell volume using zebrafish primordial
Mohammad Goudarzi   +3 more
doaj   +1 more source

The Functional Role and Molecular Characterization of the Therapeutic Target CLDN6 in Germ Cell Tumors

open access: yesAndrology, EarlyView.
ABSTRACT Background The tight junction protein CLDN6 has been identified as a cancer‐associated cell surface marker that is rarely expressed in healthy tissues. In testicular germ cell tumors (GCT), CLDN6 is particularly detectable in seminomas, embryonal carcinomas, and choriocarcinomas.
Jule Zwick   +7 more
wiley   +1 more source

Setdb1 is required for germline development and silencing of H3K9me3-marked endogenous retroviruses in primordial germ cells

open access: yesGenes & Development, 2014
Transcription of endogenous retroviruses is inhibited by de novo DNA methylation during gametogenesis, and DNA methylation reaches a low point in E13.5 primordial germ cells (PGCs) of both sexes. Liu et al.
Sheng Liu   +8 more
semanticscholar   +1 more source

A Spotlight on Yolk‐sac Tumors: Molecular Pathology, Current Diagnostics, and Novel Therapeutics

open access: yesAndrology, EarlyView.
ABSTRACT Background Yolk‐sac tumors are an aggressive subtype of testicular cancer that significantly contribute to disease progression and therapy resistance, especially in adults. While testicular cancer generally has high cure rates with cisplatin‐based treatment, adult yolk‐sac tumors often appear as components of mixed tumors with poor response to
Evangelos Prokakis   +3 more
wiley   +1 more source

Inhibitory phosphorylation of separase is essential for genome stability and viability of murine embryonic germ cells.

open access: yesPLoS Biology, 2008
Activity of separase, a cysteine protease that cleaves sister chromatid cohesin at the onset of anaphase, is tightly regulated to ensure faithful chromosome segregation and genome stability.
Xingxu Huang   +6 more
doaj   +1 more source

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

open access: yesAndrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

Genome-wide erasure of DNA methylation in mouse primordial germ cells is affected by Aid deficiency

open access: yesNature, 2010
Epigenetic reprogramming including demethylation of DNA occurs in mammalian primordial germ cells (PGCs) and in early embryos, and is important for the erasure of imprints and epimutations, and the return to pluripotency. The extent of this reprogramming
C. Popp   +7 more
semanticscholar   +1 more source

PRMT5 Protects Genomic Integrity during Global DNA Demethylation in Primordial Germ Cells and Preimplantation Embryos

open access: yesMolecules and Cells, 2014
Summary Primordial germ cells (PGCs) and preimplantation embryos undergo epigenetic reprogramming, which includes comprehensive DNA demethylation. We found that PRMT5, an arginine methyltransferase, translocates from the cytoplasm to the nucleus during ...
Shinseog Kim   +10 more
semanticscholar   +1 more source

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